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Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Small Scale Field Test Demonstrating CO2 sequestration in Arbuckle Saline Aquifer and by CO2-EOR at Wellington field, Sumner County, Kansas  

NLE Websites -- All DOE Office Websites (Extended Search)

Scale Field Test Demonstrating CO Scale Field Test Demonstrating CO 2 sequestration in Arbuckle Saline Aquifer and by CO 2 -EOR at Wellington field, Sumner County, Kansas -- W. Lynn Watney and Jason Rush Kansas Geological Survey Lawrence, KS 66047 Regional Carbon Sequestration Partnerships Annual Review Meeting October 15-17, 2011 Pittsburgh, PA Funding Opportunity Number: DE-FOA-0000441 Contract #FE0006821 $11,484,499 DOE $3.236 million cost share KANSAS STATE UNIVERSITY 12/2/2011 1 Outline * Background * The Participants * The Plan * Leveraging Current Research at Wellington Field * Inject, Monitor, Verification, and Accounting of CO 2 2 ORGANIZATION CHART Kansas Geological Survey Name Project Job Title Primary Responsibility Lynn Watney Project Leader, Joint Principal Investigator

2

Small Scale Field Test Demonstrating CO2 sequestration in Arbuckle...  

NLE Websites -- All DOE Office Websites (Extended Search)

Scale Field Test Demonstrating CO 2 sequestration in Arbuckle Saline Aquifer and by CO 2 -EOR at Wellington field, Sumner County, Kansas -- W. Lynn Watney and Jason Rush Kansas...

3

Evaluation of CO2 sequestration potential in deep saline Ozark Plateau Aquifer  

E-Print Network (OSTI)

) ·· Field owned by BEREXCOField owned by BEREXCO ­­ unitizedunitized ·· Excellent waterflood performance (noExcellent waterflood performance (no gas)gas) ­­ great COgreat CO22--EOR candidateEOR candidate ·· Arbuckle aquifer

Peterson, Blake R.

4

Development of a linear predictive model for carbon dioxide sequestration in deep saline carbonate aquifers  

Science Conference Proceedings (OSTI)

CO"2 injection into deep saline aquifers is a preferred method for mitigating CO"2 emission. Although deep saline aquifers are found in many sedimentary basins and provide very large storage capacities, several numerical simulations are needed before ... Keywords: CO2 sequestration, Deep saline carbonate aquifer, Latin hypercube space filling design, Predictive model

Sultan Anbar; Serhat Akin

2011-11-01T23:59:59.000Z

5

Geochemical Determination of the Fate and Transport of Injected Fresh Wastewater to a Deep Saline Aquifer.  

E-Print Network (OSTI)

?? Deep well injection into non-potable saline aquifers of treated domestic wastewater has been used in Florida for decades as a safe and effective alternative (more)

Walsh, Virginia M

2012-01-01T23:59:59.000Z

6

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

SciTech Connect

Injection of carbon dioxide (CO{sub 2}) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). Large-scale injection of CO{sub 2} will induce a variety of coupled physical and chemical processes, including multiphase fluid flow, fluid pressurization and changes in effective stress, solute transport, and chemical reactions between fluids and formation minerals. This work addresses some of these issues with special emphasis given to the physics of fluid flow in brine formations. An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO{sub 2} and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO{sub 2}-H{sub 2}O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ECO{sub 2}. The basic problem of CO{sub 2} injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ECO2. The numerical simulator has been applied to more complex flow problem including the CO{sub 2} injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO{sub 2} injection into aquifers. Numerical simulation results show that the transport at Sleipner is dominated by buoyancy effects and that shale layers control vertical migration of CO{sub 2}. These results are in good qualitative agreement with time lapse surveys performed at the site. High-resolution numerical simulation experiments have been conducted to study the onset of instabilities (viscous fingering) during injection of CO{sub 2} into saline aquifers. The injection process can be classified as immiscible displacement of an aqueous phase by a less dense and less viscous gas phase. Under disposal conditions (supercritical CO{sub 2}) the viscosity of carbon dioxide can be less than the viscosity of the aqueous phase by a factor of 15. Because of the lower viscosity, the CO{sub 2} displacement front will have a tendency towards instability. Preliminary simulation results show good agreement between classical instability solutions and numerical predictions of finger growth and spacing obtained using different gas/liquid viscosity ratios, relative permeability and capillary pressure models. Further studies are recommended to validate these results over a broader range of conditions.

Garcia, Julio Enrique

2003-12-18T23:59:59.000Z

7

Estimation of CO2 injection well requirements into saline aquifers for pre-feasibility CCS economics.  

E-Print Network (OSTI)

??Sub-surface saline aquifers are candidates as CO2 injection sites because they could have significant storage potential. One of the long-standing issues in assessing such storage (more)

Bukhteeva, Olga

2012-01-01T23:59:59.000Z

8

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

E-Print Network (OSTI)

L. (1990). Natural Gas Engineering: Production and Storage.experience with natural gas ?a, storage in aquifers in the

Garcia, Julio Enrique

2003-01-01T23:59:59.000Z

9

Simulating CO2 storage in saline aquifers with improved code RCB  

Science Conference Proceedings (OSTI)

The geological storage of CO2 in saline aquifers is believed to be one of the most promising ways to reduce the concentration of the greenhouse gas in the atmosphere. Injection of CO2 will, however, lead to dissolution of minerals in regions of lowered ... Keywords: CO2, RCB (retrasocodebright), gas density correction, gas solubility correction, geochemistry, geomechanics, improved Newton-Raphson iteration method, multiphase flow, relaxation factor, saline aquifer, simulation

Shunping Liu; Bjorn Kvamme

2007-11-01T23:59:59.000Z

10

Storage capacity and injection rate estimates for CO? sequestration in deep saline aquifers in the conterminous United States  

E-Print Network (OSTI)

A promising method to mitigate global warming is injecting CO? into deep saline aquifers. In order to ensure the safety of this method, it is necessary to understand how much CO? can be injected into an aquifer and at what ...

Szulczewski, Michael Lawrence

2009-01-01T23:59:59.000Z

11

TOUGH+CO2: A multiphase fluid-flow simulator for CO2 geologic sequestration in saline aquifers  

Science Conference Proceedings (OSTI)

TOUGH+CO"2 is a new simulator for modeling of CO"2 geologic sequestration in saline aquifers. It is a member of TOUGH+, the successor to the TOUGH2 family of codes for multicomponent, multiphase fluid and heat flow simulation. The code accounts for heat ... Keywords: CO2 geologic sequestration, Modeling, Multiphase flow, Parallel computing, Saline aquifer, TOUGH+, TOUGH2

Keni Zhang; George Moridis; Karsten Pruess

2011-06-01T23:59:59.000Z

12

Impact of background flow on dissolution trapping of carbon dioxide injected into saline aquifers  

E-Print Network (OSTI)

While there has been a large interest in studying the role of dissolution-driven free convection in the context of geological sequestration, the contribution of forced convection has been largely ignored. This manuscript considers CO$_2$ sequestration in saline aquifers with natural background flow and uses theoretical arguments to compute the critical background velocity needed to establish the forced convective regime. The theoretical arguments are supported by two dimensional high-resolution numerical simulations which demonstrate the importance of forced convection in enhancing dissolution in aquifers characterised by low Rayleigh numbers.

Rapaka, Saikiran

2011-01-01T23:59:59.000Z

13

The Economics of CO2 Transport by Pipeline and Storage in Saline Aquifers and Oil Reservoirs  

E-Print Network (OSTI)

Description Date 0 Original document 1/29/2008 1 Estimate for carbon content of crude oil was incorrect (see pThe Economics of CO2 Transport by Pipeline and Storage in Saline Aquifers and Oil Reservoirs Sean T for this work was provided by the US Department of Energy under contract numbers DE-FC26-00NT40935 and DE-AC26

14

Estimating Plume Volume for Geologic Storage of CO2 in Saline Aquifers  

Science Conference Proceedings (OSTI)

Typically, when a new subsurface flow and transport problem is first being considered, very simple models with a minimal number of parameters are used to get a rough idea of how the system will evolve. For a hydrogeologist considering the spreading of a contaminant plume in an aquifer, the aquifer thickness, porosity, and permeability might be enough to get started. If the plume is buoyant, aquifer dip comes into play. If regional groundwater flow is significant or there are nearby wells pumping, these features need to be included. Generally, the required parameters tend to be known from pre-existing studies, are parameters that people working in the field are familiar with, and represent features that are easy to explain to potential funding agencies, regulators, stakeholders, and the public. The situation for geologic storage of carbon dioxide (CO{sub 2}) in saline aquifers is quite different. It is certainly desirable to do preliminary modeling in advance of any field work since geologic storage of CO{sub 2} is a novel concept that few people have much experience with or intuition about. But the parameters that control CO{sub 2} plume behavior are a little more daunting to assemble and explain than those for a groundwater flow problem. Even the most basic question of how much volume a given mass of injected CO{sub 2} will occupy in the subsurface is non-trivial. However, with a number of simplifying assumptions, some preliminary estimates can be made, as described below. To make efficient use of the subsurface storage volume available, CO{sub 2} density should be large, which means choosing a storage formation at depths below about 800 m, where pressure and temperature conditions are above the critical point of CO{sub 2} (P = 73.8 bars, T = 31 C). Then CO{sub 2} will exist primarily as a free-phase supercritical fluid, while some CO{sub 2} will dissolve into the aqueous phase.

Doughty, Christine

2008-07-11T23:59:59.000Z

15

Nonlinear model identification and adaptive control of CO2 sequestration process in saline aquifers using artificial neural networks  

Science Conference Proceedings (OSTI)

In recent years, storage of carbon dioxide (CO"2) in saline aquifers has gained intensive research interest. The implementation, however, requires further research studies to ensure it is safe and secure operation. The primary objective is to secure ... Keywords: Carbon dioxide sequestration, Extended Kalman filter (EKF), GAP-RBF neural network, Nonlinear model predictive control (NMPC), System identification, Unscented Kalman filter (UKF)

Karim Salahshoor; Mohammad Hasan Hajisalehi; Morteza Haghighat Sefat

2012-11-01T23:59:59.000Z

16

The Footprint of the CO[subscript 2] Plume during Carbon Dioxide Storage in Saline Aquifers: Storage Efficiency for Capillary Trapping at the Basin Scale  

E-Print Network (OSTI)

We study a sharp-interface mathematical model of CO[subscript 2] migration in deep saline aquifers, which accounts for gravity override, capillary trapping, natural groundwater flow, and the shape of the plume during the ...

Juanes, Ruben

17

Field trip guide to selected outcrops, Arbuckle Mountains, Oklahoma  

Science Conference Proceedings (OSTI)

The Arbuckle Mountains, named for Brigadier General Matthew Arbuckle, are located in south-central Oklahoma. The formations that comprise the Arbuckle Mountains have been extensively studied for hydrocarbon source rock and reservoir rock characteristics that can be applied to the subsurface in the adjacent Anadarko and Ardmore basins. Numerous reports and guidebooks have been written concerning the Arbuckle Mountains. A few important general publications are provided in the list of selected references. The purpose of this handout is to provide general information on the geology of the Arbuckle Mountains and specific information on the four field trip stops, adapted from the literature. The four stops were at: (1) Sooner Rock and Sand Quarry; (2) Woodford Shale; (3) Hunton Anticline and Hunton Quarry; and (4) Tar Sands of Sulfur Area. As part of this report, two papers are included for more detail: Paleomagnetic dating of basinal fluid migration, base-metal mineralization, and hydrocarbon maturation in the Arbuckle Mountains, Oklahoma and Laminated black shale-bedded chert cyclicity in the Woodford Formation, southern Oklahoma.

NONE

1991-11-17T23:59:59.000Z

18

Post-injection spreading and trapping of CO[subscript 2] in saline aquifers: impact of the plume shape at the end of injection  

E-Print Network (OSTI)

We use an analytical model for the post-injection spreading of a plume of CO[subscript 2] in a saline aquifer under the action of buoyancy and capillary trapping to show that the spreading behavior is at all times strongly ...

Juanes, Ruben

19

System Design and Optimization of CO2 Storage in Deep Saline Aquifers  

E-Print Network (OSTI)

Optimization of waterflooding sweep efficiency has been widely applied in reservoir engineering to improve hydrocarbon recovery while delaying water breakthrough and minimizing the bypassed oil in reservoirs. We develop a new framework to optimize flooding sweep efficiency in geologic formations with heterogeneous properties and demonstrate its application to waterflooding and geological CO2 sequestration problems. The new method focuses on equalizing and delaying (under constant total injected volume) the breakthrough time of the injected fluid at production wells. For application to CO2 sequestration where producers may not be present, we introduce the concept of pseudo production wells that have insignificant production rates (with negligible effect on the overall flow regime) for quantification of hypothetical breakthrough curves that can be used for optimization purpose. We apply the new method to waterflooding and CO2 sequestration optimization using two heterogeneous reservoir models. We show that in water flooding experiments, the proposed method improves the sweep efficiency by delaying the field breakthrough and equalizing breakthrough times in all production wells. In this case, the optimization results in increased oil recovery and decreased water production. We apply a modified version of the proposed algorithm to geologic CO2 sequestration problems to maximize the storage capacity of aquifers by enhancing the residual and dissolution trapping. The results from applying the proposed approach to optimization of geologic CO2 storage problems illustrate the effectiveness of the algorithm in improving residual and solubility trapping by increasing the contact between available fresh brine and the injected CO2 plume through a more uniform distribution of CO2 in the aquifer.

Shamshiri, Hossein

2010-12-01T23:59:59.000Z

20

Modeling Density Effects in CO2 Injection in Oil Reservoirs and A Case Study of CO2 Sequestration in a Qatari Saline Aquifer  

E-Print Network (OSTI)

CO2 injection has been used to improve oil recovery for several decades. In recent years, CO2 injection has become even more attractive because of a dual effect; injection in the subsurface 1) allows reduction of CO2 concentration in the atmosphere to reduce global warming, and 2) improves the oil recovery. In this study, the density effect from CO2 dissolution in modeling of CO2 injection is examined. A method to model the increase in oil density with CO2 dissolution using the Peng-Robinson equation of state and the Pedersen viscosity correlation is presented. This method is applied to model the observed increase in oil density with CO2 dissolution in a West Texas crude oil. Compositional simulation of CO2 injection was performed in a 2D vertical cross section and a 3D reservoir with the density effect. The results show that the density increase from CO2 dissolution may have a drastic effect on CO2 flow path and recovery performance. One main conclusion from this work is that there is a need to have accurate density data for CO2/oil mixtures at different CO2 concentrations to ensure successful CO2 injection projects. While CO2 enhanced oil recovery (EOR) is part of the solution, saline aquifers have the largest potential for CO2 sequestration. A literature review of the CO2 sequestration in saline aquifers is performed. The dominant trapping mechanisms and transport processes and the methods used to model them are discussed in detail. The Aruma aquifer, a shallow saline aquifer in southwest Qatar is used as a case study for CO2 sequestration. A compositional simulation model is prepared for the Aruma aquifer using the available log data and flow test data. It was found that the grid size is a key parameter in modeling CO2 sequestration accurately. It affects the propagation of the CO2 plume and amount of CO2 dissolved in brine.

Ahmed, Tausif

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Evaluate CO2 sequestration potential in Ozark Plateau Aquifer System (OPAS) in  

E-Print Network (OSTI)

) ·· Field owned by BEREXCOField owned by BEREXCO ­­ unitizedunitized ·· Excellent waterflood performance (noExcellent waterflood performance (no gas)gas) ­­ great COgreat CO22--EOR candidateEOR candidate ·· Arbuckle aquifer

Peterson, Blake R.

22

CX-008476: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-008476: Categorical Exclusion Determination Small Scale Field Test Demonstrating Carbon Dioxide Sequestration in the Arbuckle Saline Aquifer CX(s) Applied: A9, B1.15,...

23

CX-007045: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-007045: Categorical Exclusion Determination Small-Scale Field Test Demonstrating Carbon Dioxide Sequestration in Arbuckle Saline Aquifer CX(s) Applied: A1, A9 Date: 0920...

24

DOE/EA-1482: Environmental Assessment for Pilot Experiment for Geological Sequestration of Carbon Dioxide in Saline Aquifer Brine Formations (October 2003)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

82 82 ENVIRONMENTAL ASSESSMENT PILOT EXPERIMENT FOR GEOLOGICAL SEQUESTRATION OF CARBON DIOXIDE IN SALINE AQUIFER BRINE FORMATIONS FRIO FORMATION, LIBERTY COUNTY, TEXAS OCTOBER 2003 U.S. DEPARTMENT OF ENERGY NATIONAL ENERGY TECHNOLOGY LABORATORY ii iii National Environmental Policy Act (NEPA) Compliance Cover Sheet Proposed Action: The U.S. Department of Energy (DOE) proposes to provide funds for a field test of the geological sequestration of carbon dioxide (CO 2 ). The Bureau of Economic Geology (BEG) at The University of Texas at Austin, under contract with DOE, has studied the potential for sequestration of CO 2 in geologic formations of the United States as part of a broader series of DOE-sponsored research projects to

25

Evaluation of CO2 Sequestration Potential in Ozark Plateau Aquifer System (OPAS) in Southern Kansas -Initial Studies*  

E-Print Network (OSTI)

, TX. Abstract The Paleozoic-age Ozark Plateau Aquifer System (OPAS) in southern Kansas is centrally in depleted Mississippian fields should spur infrastructure development for commercial scale CO2 sequestration) evaluating CO2-EOR potential of Wellington field. The regional Arbuckle geomodel was constructed utilizing

Peterson, Blake R.

26

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

M.R. Tek. 1970. Storage of Natural Gas in Saline Aquifers.petroleum, underground storage of natural gas, large scale

Authors, Various

2011-01-01T23:59:59.000Z

27

Development of Science-Based Permitting Guidance for Geological Sequestration of CO2 in Deep Saline Aquifers Based on Modeling and Risk Assessment  

SciTech Connect

Underground carbon storage may become one of the solutions to address global warming. However, to have an impact, carbon storage must be done at a much larger scale than current CO{sub 2} injection operations for enhanced oil recovery. It must also include injection into saline aquifers. An important characteristic of CO{sub 2} is its strong buoyancy--storage must be guaranteed to be sufficiently permanent to satisfy the very reason that CO{sub 2} is injected. This long-term aspect (hundreds to thousands of years) is not currently captured in legislation, even if the U.S. has a relatively well-developed regulatory framework to handle carbon storage, especially in the operational short term. This report proposes a hierarchical approach to permitting in which the State/Federal Government is responsible for developing regional assessments, ranking potential sites (''General Permit'') and lessening the applicant's burden if the general area of the chosen site has been ranked more favorably. The general permit would involve determining in the regional sense structural (closed structures), stratigraphic (heterogeneity), and petrophysical (flow parameters such as residual saturation) controls on the long-term fate of geologically sequestered CO{sub 2}. The state-sponsored regional studies and the subsequent local study performed by the applicant will address the long-term risk of the particular site. It is felt that a performance-based approach rather than a prescriptive approach is the most appropriate framework in which to address public concerns. However, operational issues for each well (equivalent to the current underground injection control-UIC-program) could follow regulations currently in place. Area ranking will include an understanding of trapping modes. Capillary (due to residual saturation) and structural (due to local geological configuration) trappings are two of the four mechanisms (the other two are solubility and mineral trappings), which are the most relevant to the time scale of interest. The most likely pathways for leakage, if any, are wells and faults. We favor a defense-in-depth approach, in which storage permanence does not rely upon a primary seal only but assumes that any leak can be contained by geologic processes before impacting mineral resources, fresh ground water, or ground surface. We examined the Texas Gulf Coast as an example of an attractive target for carbon storage. Stacked sand-shale layers provide large potential storage volumes and defense-in-depth leakage protection. In the Texas Gulf Coast, the best way to achieve this goal is to establish the primary injection level below the total depth of most wells (>2,400 m-8,000 ft). In addition, most faults, particularly growth faults, present at the primary injection level do not reach the surface. A potential methodology, which includes an integrated approach comprising the whole chain of potential events from leakage from the primary site to atmospheric impacts, is also presented. It could be followed by the State/Federal Government, as well as by the operators.

Jean-Philippe Nicot; Renaud Bouroullec; Hugo Castellanos; Susan Hovorka; Srivatsan Lakshminarasimhan; Jeffrey Paine

2006-06-30T23:59:59.000Z

28

Modeling CO2 Sequestration in a Saline Reservoir and Depleted Oil Reservoir to Evaluate The Regional CO2 Sequestration Potential of The Ozark Plateau Aquifer System, South-Central Kansas  

NLE Websites -- All DOE Office Websites (Extended Search)

CO CO 2 Sequestration in a Saline Reservoir and Depleted Oil Reservoir to Evaluate The Regional CO 2 Sequestration Potential of The Ozark Plateau Aquifer System, South-Central Kansas Background Carbon capture, utilization and storage (CCUS) technologies offer the potential for reducing CO 2 emissions without adversely influencing energy use or hindering economic growth. Deploying these technologies in commercial-scale applications requires adequate geologic formations capable of (1) storing large volumes of CO 2 , (2) receiving injected CO 2 at efficient and economic rates, and (3) retaining CO 2 safely over extended periods. Research efforts are currently focused on conventional and unconventional storage formations within depositional environments such as: deltaic, fluvial, alluvial,

29

Large-scale impact of CO2 storage in deep saline aquifers: A sensitivity study on pressure response in stratified systems  

E-Print Network (OSTI)

as the primary storage forma- tion, the overlying Eau Claire Shale (henceforth referred to as Eau Claire properties: (1) an upper unit of sandstone and shale that was tidally influenced and deposited, (2) a thick of the Maquoketa Shale (Hart et al. 2006; Eaton et al. 2007). In Situ Temperature and Salinity Profiles Many

Zhou, Quanlin

30

CX-008477: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-008477: Categorical Exclusion Determination Small Scale Field Test Demonstrating Carbon Dioxide Sequestration in the Arbuckle Saline Aquifer CX(s) Applied: A9, B3.1, B3.7,...

31

CX-008478: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-008478: Categorical Exclusion Determination Small Scale Field Test Demonstrating Carbon Dioxide Sequestration in the Arbuckle Saline Aquifer CX(s) Applied: A9, B3.1, B5.3...

32

CX-008474: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-008474: Categorical Exclusion Determination Small Scale Field Test Demonstrating Carbon Dioxide Sequestration in the Arbuckle Saline Aquifer CX(s) Applied: B1.15, B3.6,...

33

CX-008475: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-008475: Categorical Exclusion Determination Small Scale Field Test Demonstrating Carbon Dioxide Sequestration in the Arbuckle Saline Aquifer CX(s) Applied: A9, B3.1, B3.7,...

34

Slide 1  

NLE Websites -- All DOE Office Websites (Extended Search)

in KS - Deep Saline Arbuckle Aquifer in south-central KS - Select depleted mature oil fields Start Date - Dec 2009 No CO 2 will be injected in this 3-year project. C e n t...

35

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

aquifers for thermal energy storage. Problems outlined aboveModeling of Thermal Energy Storage in Aquifers," Proceed-ings of Aquifer Thermal Energy Storage Workshop, Lawrence

Tsang, C.-F.

2011-01-01T23:59:59.000Z

36

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

using aquifers for thermal energy storage. Problems outlinedmatical Modeling of Thermal Energy Storage in Aquifers,"Proceed- ings of Aquifer Thermal Energy Storage Workshop,

Tsang, C.-F.

2011-01-01T23:59:59.000Z

37

Inexpensive cross-flow hydropower turbine at Arbuckle Mountain Hydroelectric Project  

SciTech Connect

This report documents the first three and half years of operation and maintenance on the Arbuckle Mountain Hydroelectric Project. Located on a flashy mountain stream in northern California, the project was designed, built and tested through a Cooperative Agreement between the US DOE and OTT Engineering, Inc. (OTT). The purpose of the Agreement is to build and intensively test an inexpensive American-made cross-flow turbine and to provide information to the DOE on the cost, efficiency, operation, and maintenance of the unit. It requires that OTT document for DOE a summary of the complete operating statistics, operation and maintenance cost, and revenues from power sales for a two-year operating period. Several unique events occurred between the initial start-up (December 1986) and the beginning of the 1989 generation season (October 1988) that delayed the first year's full operation and provided unique information for a demonstration project of this type. Accordingly, this report will discuss certain major problems experienced with the design, operation and maintenance, and energy production, as well as the operation and maintenance costs and value of the power produced for the first three and half years of operation. 9 figs., 2 tabs.

1991-07-01T23:59:59.000Z

38

Seasonal dynamics in costal aquifers : investigation of submarine groundwater discharge through field measurements and numerical models  

E-Print Network (OSTI)

The fresh and saline groundwater flowing from coastal aquifers into the ocean comprise submarine groundwater discharge (SGD). This outflow is an important pathway for the transport of nutrients and contaminants, and has ...

Michael, Holly Anne, 1976-

2005-01-01T23:59:59.000Z

39

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network (OSTI)

large quantities of hot water produced (1) as a by-productin one well and reservoir water is produced in another. Thesupply: produced from the aquifer. hot water is Spring (90

Tsang, C.-F.

2011-01-01T23:59:59.000Z

40

Formation Damage due to CO2 Sequestration in Saline Aquifers  

E-Print Network (OSTI)

Carbon dioxide (CO2) sequestration is defined as the removal of gas that would be emitted into the atmosphere and its subsequent storage in a safe, sound place. CO2 sequestration in underground formations is currently being considered to reduce the amount of CO2 emitted into the atmosphere. However, a better understanding of the chemical and physical interactions between CO2, water, and formation rock is necessary before sequestration. These interactions can be evaluated by the change in mineral content in the water before and after injection, or from the change in well injectivity during CO2 injection. It may affect the permeability positively due to rock dissolution, or negatively due to precipitation. Several physical and chemical processes cover the CO2 injection operations; multiphase flow in porous media is represented by the flow of the brine and CO2, solute transportation is represented by CO2 dissolution in the brine forming weak carbonic acid, dissolution-deposition kinetics can be seen in the rock dissolution by the carbonic acid and the deposition of the reaction products, hydrodynamic instabilities due to displacement of less viscous brine with more viscous CO2 (viscous fingering), capillary effects and upward movement of CO2 due to gravity effect. The objective of the proposed work is to correlate the formation damage to the other variables, i.e. pressure, temperature, formation rock type, rock porosity, water composition, sulfates concentration in the water, CO2 volume injected, water volume injected, CO2 to water volumetric ratio, CO2 injection rate, and water injection rate. In order to achieve the proposed objective, lab experiments will be conducted on different rock types (carbonates, limestone and dolomite, and sandstone) under pressure and temperature that simulate the field conditions. CO2 will be used at the supercritical phase and different CO2-water-rock chemical interactions will be addressed. Quantitative analysis of the experimental results using a geochemical simulator (CMG-GEM) will also be performed. The results showed that for carbonate cores, maintaining the CO2/brine volumetric ratio above 1.0 reduced bicarbonate formation in the formation brine and helped in minimizing precipitation of calcium carbonate. Additionally, increasing cycle volume in WAG injection reduced the damage introduced to the core. Sulfate precipitation during CO2 sequestration was primarily controlled by temperature. For formation brine with high total dissolved solids (TDS), calcium sulfate precipitation occurs, even at a low sulfate concentration. For dolomite rock, temperature, injection flow rate, and injection scheme don't have a clear impact on the core permeability, the main factor that affects the change in core permeability is the initial core permeability. Sandstone cores showed significant damage; between 35% and 55% loss in core permeability was observed after CO2 injection. For shorter WAG injection the damage was higher; decreasing the brine volume injected per cycle, decreased the damage. At higher temperatures, 200 and 250 degrees F, more damage was noted than at 70 degrees F.

Mohamed, Ibrahim 1984-

2012-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

E-Print Network (OSTI)

K. (2002). Multiphase ?ow in homogeneous porous media within hydrogeology and multiphase ?ow in porous media. I amimplementa- tion of multiphase ?ow in porous media.

Garcia, Julio Enrique

2003-01-01T23:59:59.000Z

42

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

E-Print Network (OSTI)

then passed through a steam turbine, generating electricity.passed through a steam turbine, generating more electricity.steam in a gasi?er to produce a fuel gas that is burned to generate power in a gas turbine

Garcia, Julio Enrique

2003-01-01T23:59:59.000Z

43

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

E-Print Network (OSTI)

carbon dioxide can be less than the viscosity of the aqueous phase by a factorcarbon dioxide can be less than the viscosity of the aqueous phase by a factor

Garcia, Julio Enrique

2003-01-01T23:59:59.000Z

44

Aquifer stability investigations  

DOE Green Energy (OSTI)

The study of compressed air energy storage (CAES) in porous rock reservoirs is carried out within the Reservoir Stability Studies Program at Pacific Northwest Laboratory. The goal of the study is to establish criteria for long-term stability of aquifer CAES reservoirs. These criteria are intended to be guidelines and check lists that utilities and architect-engineering firms may use to evaluate reservoir stability at candidate CAES sites. These criteria will be quantitative where possible, qualitative where necessary, and will provide a focal point for CAES relevant geotechnical knowledge, whether developed within this study or available from petroleum, mining or other geotechnical practices using rock materials. The Reservoir Stability Studies Program had four major activities: a state-of-the-art survey to establish preliminary stability criteria and identify areas requiring research and development; numerical modeling; laboratory testing to provide data for use in numerical models and to investigate fundamental rock mechanics, thermal, fluid, and geochemical response of aquifer materials; and field studies to verify the feasibility of air injection and recovery under CAES conditions in an aquifer, to validate and refine the stability criteria, and to evaluate the accuracy and adequacy of the numerical and experimental methodologies developed in previous work. Three phases of study, including preliminary criteria formulation, numerical model development, and experimental assessment of CAES reservoir materials have been completed. Present activity consists of construction and operation of the aquifer field test, and associated numerical and experimental work in support of that activity. Work is presently planned to be complete by 1983 at the end of the field test. At that time the final stability criteria for aquifers will be issued. Attached here also are preliminary criteria for aquifers.

Allen, R.D.; Doherty, T.J.

1981-09-01T23:59:59.000Z

45

Hydrogeophysical methods for analyzing aquifer storage and recovery systems  

SciTech Connect

Hydrogeophysical methods are presented that support the siting and monitoring of aquifer storage and recovery (ASR) systems. These methods are presented as numerical simulations in the context of a proposed ASR experiment in Kuwait, although the techniques are applicable to numerous ASR projects. Bulk geophysical properties are calculated directly from ASR flow and solute transport simulations using standard petrophysical relationships and are used to simulate the dynamic geophysical response to ASR. This strategy provides a quantitative framework for determining site-specific geophysical methods and data acquisition geometries that can provide the most useful information about the ASR implementation. An axisymmetric, coupled fluid flow and solute transport model simulates injection, storage, and withdrawal of fresh water (salinity {approx}500 ppm) into the Dammam aquifer, a tertiary carbonate formation with native salinity approximately 6000 ppm. Sensitivity of the flow simulations to the correlation length of aquifer heterogeneity, aquifer dispersivity, and hydraulic permeability of the confining layer are investigated. The geophysical response using electrical resistivity, time-domain electromagnetic (TEM), and seismic methods is computed at regular intervals during the ASR simulation to investigate the sensitivity of these different techniques to changes in subsurface properties. For the electrical and electromagnetic methods, fluid electric conductivity is derived from the modeled salinity and is combined with an assumed porosity model to compute a bulk electrical resistivity structure. The seismic response is computed from the porosity model and changes in effective stress due to fluid pressure variations during injection/recovery, while changes in fluid properties are introduced through Gassmann fluid substitution.

Minsley, B.J.; Ajo-Franklin, J.; Mukhopadhyay, A.; Morgan, F.D.

2009-12-01T23:59:59.000Z

46

Methane entrained in geopressured aquifers, Texas Gulf Coast  

DOE Green Energy (OSTI)

Six tests of geopressured aquifers have yielded between 3.6 to 4.5 m/sup 3//m/sup 3/ (20 to 25 scf/bbl) of gas. These low gas concentrations are attributed to high salinities, that in all tests exceeded 100,000 mg/l, but undersaturated conditions cannot be ruled out completely. Research efforts are designed to delineate the geographic and stratigraphic variations in salinity and to recognize regional and local trends so that zones of lower salinity and higher gas concentration can be identified. Moreover, well logs and seismic data are being used to develop methods of detecting low concentrations of free gas in watered-out gas sands and in thin sands that were considered as noncommercial prior to renewed interest in unconventional gas supplies. (MHR)

Morton, R.A.

1980-07-01T23:59:59.000Z

47

Aquifer Management for CO2 Sequestration  

E-Print Network (OSTI)

Storage of carbon dioxide is being actively considered for the reduction of green house gases. To make an impact on the environment CO2 should be put away on the scale of gigatonnes per annum. The storage capacity of deep saline aquifers is estimated to be as high as 1,000 gigatonnes of CO2.(IPCC). Published reports on the potential for sequestration fail to address the necessity of storing CO2 in a closed system. This work addresses issues related to sequestration of CO2 in closed aquifers and the risk associated with aquifer pressurization. Through analytical modeling we show that the required volume for storage and the number of injection wells required are more than what has been envisioned, which renders geologic sequestration of CO2 a profoundly nonfeasible option for the management of CO2 emissions unless brine is produced to create voidage and pressure relief. The results from our analytical model match well with a numerical reservoir simulator including the multiphase physics of CO2 sequestration. Rising aquifer pressurization threatens the seal integrity and poses a risk of CO2 leakage. Hence, monitoring the long-term integrity of CO2 storage reservoirs will be a critical aspect for making geologic sequestration a safe, effective and acceptable method for greenhouse gas control. Verification of long-term CO2 residence in receptor formations and quantification of possible CO2 leaks are required for developing a risk assessment framework. Important aspects of pressure falloff tests for CO2 storage reservoirs are discussed with a focus on reservoir pressure monitoring and leakage detection. The importance of taking regular pressure falloffs for a commercial sequestration project and how this can help in diagnosing an aquifer leak will be discussed. The primary driver for leakage in bulk phase injection is the buoyancy of CO2 under typical deep reservoir conditions. Free-phase CO2 below the top seal is prone to leak if a breach happens in the top seal. Consequently, another objective of this research is to propose a way to engineer the CO2 injection system in order to accelerate CO2 dissolution and trapping. The engineered system eliminates the buoyancy-driven accumulation of free gas and avoids aquifer pressurization by producing brine out of the system. Simulations for 30 years of CO2 injection followed by 1,000 years of natural gradient show how CO2 can be securely and safely stored in a relatively smaller closed aquifer volume and with a greater storage potential. The engineered system increases CO2 dissolution and capillary trapping over what occurs under the bulk phase injection of CO2. This thesis revolves around identification, monitoring and mitigation of the risks associated with geological CO2 sequestration.

Anchliya, Abhishek

2009-12-01T23:59:59.000Z

48

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Accumulation of Solar Energy in an Aquifer. Geliotekhnika.Aquifer Heating in Solar-Energy Accumulation, Gelioteknhika.presented at Int. Solar Energy Soc. (American Sec. ) "Solar

Authors, Various

2011-01-01T23:59:59.000Z

49

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Aquifers of Hot Water from Solar Power Systems," presentedof hot water from solar power systems. Lawrence BerkeleyAquifers of Hot Water from Solar Power Systems," Proceedings

Authors, Various

2011-01-01T23:59:59.000Z

50

Microsoft Word - S08542_Aquifer  

Office of Legacy Management (LM)

Work Plan for the Enhanced Work Plan for the Enhanced Characterization of the Surficial Aquifer Riverton, Wyoming, Processing Site June 2012 LMS/RVT/S08542 This page intentionally left blank LMS/RVT/S08542 Work Plan for the Enhanced Characterization of the Surficial Aquifer Riverton, Wyoming, Processing Site June 2012 This page intentionally left blank U.S. Department of Energy Work Plan for the Enhanced Characterization of the Surficial Aquifer, Riverton, Wyoming June 2012 Doc. No. S08542 Page i Contents Abbreviations .................................................................................................................................. ii 1.0 Introduction ............................................................................................................................1

51

Geopressured aquifer simulator  

DOE Green Energy (OSTI)

Ten natural gas companies have funded the Institute of Gas Technology (IGT) development of a laboratory facility for fluid and core analyses at temperatures and pressures characteristic of geopressured aquifers. The facility has been designed and constructed to measure the following parameters at pressures up to 20,000 psi and temperatures to 450/sup 0/F: solubility of methane in brines from actual geopressured aquifers; dependence of compression and compaction reservoir drive upon pressure; dependence of permeability upon reservoir pressure and temperatures; dependence of relative permeabilities to gas and to water upon the water saturation of pores, pressure, and temperature. Brine pumped through the core can be either gas-free or from a reservoir of brine with gas in solution. The facility is modular in design with major components including the reservoir of gas-saturated brine, high-pressure positive displacement pumps, and the core holder housed in a large oven. All components contacted by high-pressure, high-temperature brine are fabricated from Hastelloy C-276, Elgaloy, or Inconel 625 to avoid corrosion. The temperatures, pressures, differential pressure, and flow rates are controlled and/or recorded by a digital microcomputer/microprocessor. Operation will be controlled from a separate room and programmed; hands-off operation will be the normal mode of operation. The facility has been constructed and is now being tested.Following performance testing with Berea sandstone, initial emphasis will be upon studies of brine and available core from DOE's Pleasant Bayou No. 1 and No. 2 wells.

Byrnes, A.P.; Rockar, E.M.; Randolph, P.L.; Kelkar, S.M.

1979-01-01T23:59:59.000Z

52

Salinity Intrusion in Estuaries  

Science Conference Proceedings (OSTI)

One dimensional time-averaged solutions are examined for salinity intrusion in estuaries with a breadth variation BL(X/?)n and a depth variation H(X/?)m, where X is the distance from the head of the estuary. These solutions emphasize the ...

D. Prandle

1981-10-01T23:59:59.000Z

53

Salinity driven oceanographic upwelling  

DOE Patents (OSTI)

The salinity driven oceanographic upwelling is maintained in a mariculture device that includes a long main duct in the general shape of a cylinder having perforated cover plates at each end. The mariculture device is suspended vertically in the ocean such that one end of the main duct is in surface water and the other end in relatively deep water that is cold, nutrient rich and relatively fresh in comparison to the surface water which is relatively warm, relatively nutrient deficient and relatively saline. A plurality of elongated flow segregating tubes are disposed in the main duct and extend from the upper cover plate beyond the lower cover plate into a lower manifold plate. The lower manifold plate is spaced from the lower cover plate to define a deep water fluid flow path to the interior space of the main duct. Spacer tubes extend from the upper cover plate and communicate with the interior space of the main duct. The spacer tubes are received in an upper manifold plate spaced from the upper cover plate to define a surface water fluid flow path into the flow segregating tubes. A surface water-deep water counterflow is thus established with deep water flowing upwardly through the main duct interior for discharge beyond the upper manifold plate while surface water flows downwardly through the flow segregating tubes for discharge below the lower manifold plate. During such counterflow heat is transferred from the downflowing warm water to the upflowing cold water. The flow is maintained by the difference in density between the deep water and the surface water due to their differences in salinity. The upwelling of nutrient rich deep water is used for marifarming by fertilizing the nutrient deficient surface water. 1 fig.

Johnson, D.H.

1984-08-30T23:59:59.000Z

54

Salinity driven oceanographic upwelling  

DOE Patents (OSTI)

The salinity driven oceanographic upwelling is maintained in a mariculture device that includes a long main duct in the general shape of a cylinder having perforated cover plates at each end. The mariculture device is suspended vertically in the ocean such that one end of the main duct is in surface water and the other end in relatively deep water that is cold, nutrient rich and relatively fresh in comparison to the surface water which is relatively warm, relatively nutrient deficient and relatively saline. A plurality of elongated flow segregating tubes are disposed in the main duct and extend from the upper cover plate beyond the lower cover plate into a lower manifold plate. The lower manifold plate is spaced from the lower cover plate to define a deep water fluid flow path to the interior space of the main duct. Spacer tubes extend from the upper cover plate and communicate with the interior space of the main duct. The spacer tubes are received in an upper manifold plate spaced from the upper cover plate to define a surface water fluid flow path into the flow segregating tubes. A surface water-deep water counterflow is thus established with deep water flowing upwardly through the main duct interior for discharge beyond the upper manifold plate while surface water flows downwardly through the flow segregating tubes for discharge below the lower manifold plate. During such counterflow heat is transferred from the downflowing warm water to the upflowing cold water. The flow is maintained by the difference in density between the deep water and the surface water due to their differences in salinity. The upwelling of nutrient rich deep water is used for marifarming by fertilizing the nutrient deficient surface water.

Johnson, David H. (Lakewood, CO)

1986-01-01T23:59:59.000Z

55

Issues Related to Seismic Activity Induced by the Injection of CO2 in Deep Saline Aquifiers  

NLE Websites -- All DOE Office Websites (Extended Search)

ISSUES RELATED TO SEISMIC ACTIVITY INDUCED BY THE INJECTION ISSUES RELATED TO SEISMIC ACTIVITY INDUCED BY THE INJECTION OF CO 2 IN DEEP SALINE AQUIFERS Joel Sminchak (sminchak@battelle.org; 614-424-7392) Neeraj Gupta (gupta@battelle.org; 614-424-3820) Battelle Memorial Institute 505 King Avenue Columbus, Ohio 43201 Charles Byrer (a) and Perry Bergman (b) National Energy Technology Laboratory (a) P.O. Box 880, Morgantown, WV, 26507-0880 (b) P.O. Box 10940, Pittsburgh, PA, 15236-0940 Abstract Case studies, theory, regulation, and special considerations regarding the disposal of carbon dioxide (CO 2 ) into deep saline aquifers were investigated to assess the potential for induced seismic activity. Formations capable of accepting large volumes of CO 2 make deep well injection of CO 2 an attractive option. While seismic implications must be considered for injection

56

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

High temperature underground thermal energy storage, inProceedings, Thermal Energy Storage in Aquifers Workshop:underground thermal energy storage, in ATES newsletter:

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

57

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Survey of Thermal Energy Storage in Aquifers Coupled withGeneration and Energy Storage," presented at Frontiers ofStudy of Underground Energy Storage Using High-Pressure,

Authors, Various

2011-01-01T23:59:59.000Z

58

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

1978, High temperature underground thermal energy storage,in Proceedings, Thermal Energy Storage in Aquifers Workshop:High temperature underground thermal energy storage, in ATES

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

59

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

B. Quale. Seasonal storage of thermal energy in water in theand J. Schwarz, Survey of Thermal Energy Storage in AquifersSecond Annual Thermal Energy Storage Contractors'

Authors, Various

2011-01-01T23:59:59.000Z

60

Aquifer Protection Area Land Use Regulations (Connecticut)  

Energy.gov (U.S. Department of Energy (DOE))

These regulations describe allowable activities within aquifer protection areas, the procedure by which such areas are delineated, and relevant permit requirements. The regulations also describe...

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

EXPERIMENTAL AND THEORETICAL STUDIES OF THERMAL ENERGY STORAGE IN AQUIFERS  

E-Print Network (OSTI)

In Proceed- ings of Thermal Energy Storage in Aquifers Work-Mathematical Modeling of Thermal Energy storage in Aquifers.In Proceed- ings of Thermal Energy Storage in Aquifers Work-

Tsang, Chin Fu

2011-01-01T23:59:59.000Z

62

EIA - Natural Gas Pipeline Network - Aquifer Storage Reservoir...  

Annual Energy Outlook 2012 (EIA)

Aquifer Storage Reservoir Configuration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Aquifer Underground...

63

Analysis of Mineral Trapping for CO2 Disposal in Deep Aquifers  

Office of Scientific and Technical Information (OSTI)

Reactive Geochemical Transport Simulation to Study Mineral Trapping Reactive Geochemical Transport Simulation to Study Mineral Trapping for CO 2 Disposal in Deep Saline Arenaceous Aquifers Tianfu Xu, John A. Apps, and Karsten Pruess Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA Abstract. A reactive fluid flow and geochemical transport numerical model for evaluating long-term CO 2 disposal in deep aquifers has been developed. Using this model, we performed a number of sensitivity simulations under CO 2 injection conditions for a commonly encountered Gulf Coast sediment to analyze the impact of CO 2 immobilization through carbonate precipitation. Geochemical models are needed because alteration of the predominant host rock aluminosilicate minerals is very slow and is not

64

Fresh Water Generation from Aquifer-Pressured Carbon Storage: Annual Report FY09  

SciTech Connect

This project is establishing the potential for using brine pressurized by Carbon Capture and Storage (CCS) operations in saline formations as the feedstock for desalination and water treatment technologies including reverse osmosis (RO) and nanofiltration (NF). The aquifer pressure resulting from the energy required to inject the carbon dioxide provides all or part of the inlet pressure for the desalination system. Residual brine is reinjected into the formation at net volume reduction, such that the volume of fresh water extracted balances the volume of CO{sub 2} injected into the formation. This process provides additional CO{sub 2} storage capacity in the aquifer, reduces operational risks (cap-rock fracturing, contamination of neighboring fresh water aquifers, and seismicity) by relieving overpressure in the formation, and provides a source of low-cost fresh water to offset costs or operational water needs. This multi-faceted project combines elements of geochemistry, reservoir engineering, and water treatment engineering. The range of saline formation waters is being identified and analyzed. Computer modeling and laboratory-scale experimentation are being used to examine mineral scaling and osmotic pressure limitations. Computer modeling is being used to evaluate processes in the storage aquifer, including the evolution of the pressure field. Water treatment costs are being evaluated by comparing the necessary process facilities to those in common use for seawater RO. There are presently limited brine composition data available for actual CCS sites by the site operators including in the U.S. the seven regional Carbon Sequestration Partnerships (CSPs). To work around this, we are building a 'catalog' of compositions representative of 'produced' waters (waters produced in the course of seeking or producing oil and gas), to which we are adding data from actual CCS sites as they become available. Produced waters comprise the most common examples of saline formation waters. Therefore, they are expected to be representative of saline formation waters at actual and potential future CCS sites. We are using a produced waters database (Breit, 2002) covering most of the United States compiled by the U.S. Geological Survey (USGS). In one instance to date, we have used this database to find a composition corresponding to the brine expected at an actual CCS site (Big Sky CSP, Nugget Formation, Sublette County, Wyoming). We have located other produced waters databases, which are usually of regional scope (e.g., NETL, 2005, Rocky Mountains basins).

Wolery, T; Aines, R; Hao, Y; Bourcier, W; Wolfe, T; Haussman, C

2009-11-25T23:59:59.000Z

65

THEORETICAL STUDIES IN LONG-TERM THERMAL ENERGY STORAGE IN AQUIFERS  

E-Print Network (OSTI)

Mathematical Modeling of Thermal Energy Storage in Aquifers.of Aquifer Thermal Energy Storage Workshop, LawrenceF.P. "Thermal Energy Storage in a Confined Aquifer- Second

Tsang, C.F.

2013-01-01T23:59:59.000Z

66

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

HAUSZ, W. , 1977. "Seasonal Storage in District Heating,"District Heating, July-August-September, 1977, pp. 5-11.aquifer storage for district heating and cooling. C. W.

Authors, Various

2011-01-01T23:59:59.000Z

67

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

and J. Schwarz, Survey of Thermal Energy Storage in AquifersA. 1957. Steady State Free Thermal Convection of Liquid in a1958. An Experiment on Free Thermal Convection of Water in

Authors, Various

2011-01-01T23:59:59.000Z

68

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Jamaica Bay water nor cooling tower "agothy Fm, Elevation ofJFK. Investment Cost of Cooling Tower Case. Table 3. Annualthe JFK Aquifer System. I. Cooling Tower Case Winter Cooling

Authors, Various

2011-01-01T23:59:59.000Z

69

Microstructure Estimates of Turbulent Salinity Flux and the Dissipation Spectrum of Salinity  

Science Conference Proceedings (OSTI)

Direct determination of the irreversible turbulent flux of salinity in the ocean has not been possible because of the complexity of measuring salinity on the smallest scales over which it mixes. Presented is an analysis of turbulent salinity ...

Jonathan D. Nash; James N. Moum

2002-08-01T23:59:59.000Z

70

REACTIVE MULTIPHASE BEHAVIOR OF CO2 IN SALINE AQUIFERS BENEATH THE COLORADO PLATEAU  

DOE Green Energy (OSTI)

Field and laboratory investigations of naturally occurring CO{sub 2}-reservoirs are being conducted to determine the characteristics of potential seal and reservoir units and the extent of the interactions that occur between the host rocks and the CO{sub 2} charged fluids. Efforts have focused on the Farnham Dome field, located in central Utah, the Springerville-St. Johns field in Arizona and New Mexico, and most recently, the Crystal Geyser-Salt Wash graben areas with their CO{sub 2}-charged geysers and springs in central Utah. At both the Springerville-St. Johns field and the central Utah CO{sub 2} spring area, there is evidence of extensive travertine deposits that document release of CO{sub 2} to the atmosphere. At Farnham Dome, calcite debris fields appear to be remnants of vein calcite and an earlier period of fluid leakage. The main achievements during this quarter are (1): preparation for a soil gas flux survey in October at the Crystal Geyser --Little Grand Wash fault zone, and the Salt Wash graben; (2) submission of an abstract to the upcoming Measurement, Monitoring and Verification session at the Fall AGU meeting; (3) submission of an invited abstract to the Gordon Conference on Hydrocarbon Resources; and (4) receipt of initial radiocarbon dates of travertine from the Springerville-St Johns field. Analytical results and interpretations of both the travertine deposition and the soil gas surveys are still in progress, and will be included in future quarterly reports.

R.G. Allis; J. Moore; S. White

2004-10-25T23:59:59.000Z

71

Solutions of test problems for disposal of CO2 in saline aquifers  

E-Print Network (OSTI)

the large gas saturations beneath the shales, and from thelarger gas saturation beneath the top shale (elevation 151gas saturations of approximately 60 % occur beneath the shale

Pruess, Karsten; Garcia, Julio

2003-01-01T23:59:59.000Z

72

Feasibility of Geophysical Monitoring of Carbon-Sequestrated Deep Saline Aquifers  

NLE Websites -- All DOE Office Websites (Extended Search)

Customer Service: 1-800-553-7681 Customer Service: 1-800-553-7681 Projec t Fac ts Carbon Sequestration ContaCtS Sean Plasynski Sequestration Technology Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-4867 sean.plasynski@netl.doe.gov William W. Aljoe Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-6569 william.aljoe@netl.doe.gov Subhashis Mallick

73

REACTIVE MULTIPHASE BEHAVIOR OF CO{sub 2} IN SALINE AQUIFERS BENEATH THE COLORADO PLATEAU  

DOE Green Energy (OSTI)

Soil gas surveys have been carried out on the Colorado Plateau over areas with natural occurrences of CO{sub 2}. At Farnham Dome, Utah, and Springerville-St. Johns, Arizona, proven CO{sub 2} reservoirs occur at 600-800 m depth, but no anomalous soil gas CO{sub 2} flux was detected. Background CO{sub 2} fluxes of up to about 5 g m{sup -2} day{sup -1} were common in arid, poorly vegetated areas, and fluxes up to about 20 g m{sup -2} day{sup -1} were found at Springerville-St. Johns in heavily vegetated, wet ground adjacent to springs. These elevated fluxes are attributed to shallow root zone activity rather than to a deep upflow of CO{sub 2}. Localized areas of anomalously high CO{sub 2} gas flux ({approx} 100 g m{sup -2} day{sup -1}) were documented along the Little Grand Wash Fault Zone near Crystal Geyser, Utah and nearby in Ten Mile Graben, but those in Ten Mile Graben are not directly associated with the major faults. In both areas, features with a visible gas flux are present. Isotopic measurements on the CO{sub 2} gas confirm that it originated at depth. Evidence of widespread vein calcite at the surface at Farnham Dome and travertine deposits in the other areas suggests that there has been an outflow of CO{sub 2}-rich fluids in the past. 14C ages of pollen trapped in the travertine at Springerville-St. Johns record a period of CO{sub 2} leakage to the atmosphere between 887 {+-} 35 and 3219 {+-} 30 years BP. No travertine deposits appear to be currently forming. At Springerville-St. Johns, Crystal Geyser and Ten Mile Graben, there are significant outflows of high-bicarbonate water. Movement of CO{sub 2}-rich groundwaters may be the dominant mechanism controlling the mobility of CO{sub 2} today. The very localized nature of the soil gas anomalies, evidence of large scale discharge of CO{sub 2} over a very short period of time and the outflow of ground water containing dissolved CO{sub 2} will present challenges for effective, long term monitoring of CO{sub 2} leakage.

R.G. Allis; J. Moore; S. White

2005-02-08T23:59:59.000Z

74

Experimental investigation of carbon dioxide trapping due to capillary retention in deep saline aquifers.  

E-Print Network (OSTI)

??Carbon dioxide (CO2) is by far the most significant greenhouse gas released by human activities through fossil fuel combustion. In order to minimize CO2 emissions (more)

Li, Xinqian

2013-01-01T23:59:59.000Z

75

Matched boundary extrapolation solutions for CO2 well injection into a saline aquifer  

E-Print Network (OSTI)

interfacesolutionforcarbondioxideinjection intoInterface Solutionfor Carbon Dioxide Injection intoIPCC Special Report on Carbon Dioxide Capture and

Houseworth, J.

2012-01-01T23:59:59.000Z

76

REACTIVE MULTIPHASE BEHAVIOR OF CO2 IN SALINE AQUIFERS BENEATH THE COLORADO PLATEAU  

Science Conference Proceedings (OSTI)

The six coal-fired power plants located in the Colorado Plateau and southern Rocky Mountain region of the U.S. produce 100 million tons of CO{sub 2} per year. Thick sequences of collocated sedimentary rocks represent potential sites for sequestration of the CO{sub 2}. Field and laboratory investigations of naturally occurring CO{sub 2}-reservoirs are being conducted to determine the characteristics of potential seal and reservoir units and the extent of the interactions that occur between the host rocks and the CO{sub 2} charged fluids. The results are being incorporated into a series of two-dimensional numerical models that represent the major chemical and physical processes induced by injection. During reporting period covered here (March 30 to June 30, 2003), the main achievements were: Presentation of three papers at the Second Annual Conference on Carbon Sequestration (May 5-8, Alexandria, Virginia); Presentation of a poster at the American Association of Petroleum Geologists meeting; Co-PI organized and chaired a special session on Geologic Carbon Dioxide Sequestration at the American Association of Petroleum Geologists annual convention in Salt Lake City (May 12-15).

R.G. Allis; J. Moore; S. White

2003-06-30T23:59:59.000Z

77

REACTIVE MULTIPHASE BEHAVIOR OF CO2 IN SALINE AQUIFERS BENEATH THE COLORADO PLATEAU  

Science Conference Proceedings (OSTI)

Soil CO{sub 2} flux surveys have been conducted over known CO{sub 2} reservoirs at Farnham Dome, Utah, Crystal Geyser-Ten Mile Graben in Utah and Springerville-St. Johns, Arizona. No anomalous CO{sub 2} flux was detected at the Farnham Dome and Springerville-St. Johns. At Crystal Geyser-Ten Mile Graben, localized areas of anomalously high CO{sub 2} flux ({approx}100 g m{sup -2} day{sup -1}) occur along a fault zone near visibly degassing features. Isotopic measurements on CO{sub 2} collected from nearby springs indicate that it originated at depth. Evidence of widespread vein calcite at the surface (Farnham Dome) and travertine deposits at the other two areas suggests that discharge of CO{sub 2}-rich fluids has occurred in the past. Despite the lack of evidence for significant present day leakage of CO{sub 2} to the atmosphere at Springerville-St. Johns and Crystal Geyser-Ten Mile Graben, there are significant outflows of high-bicarbonate water in both areas suggesting continuous migration of CO{sub 2} in the aqueous phase from depth. The very localized nature of the CO{sub 2} flux anomalies, and the outflow of ground water containing dissolved CO{sub 2} present challenges for effective, long term monitoring of CO{sub 2} leakage.

R.G. Allis; J. Moore; S. White

2005-05-16T23:59:59.000Z

78

Up-Scaling Geochemical Reaction Rates for Carbon Dioxide (CO2) in Deep Saline Aquifers  

Science Conference Proceedings (OSTI)

The overall goal of the project was to bridge the gap between our knowledge of small-scale geochemical reaction rates and reaction rates meaningful for modeling transport at core scales. The working hypothesis was that reaction rates, determined from laboratory measurements based upon reactions typically conducted in well mixed batch reactors using pulverized reactive media may be significantly changed in in situ porous media flow due to rock microstructure heterogeneity. Specifically we hypothesized that, generally, reactive mineral surfaces are not uniformly accessible to reactive fluids due to the random deposition of mineral grains and to the variation in flow rates within a pore network. Expected bulk reaction rates would therefore have to be correctly up-scaled to reflect such heterogeneity. The specific objective was to develop a computational tool that integrates existing measurement capabilities with pore-scale network models of fluid flow and reactive transport. The existing measurement capabilities to be integrated consisted of (a) pore space morphology, (b) rock mineralogy, and (c) geochemical reaction rates. The objective was accomplished by: (1) characterizing sedimentary sandstone rock morphology using X-ray computed microtomography, (2) mapping rock mineralogy using back-scattered electron microscopy (BSE), X-ray dispersive spectroscopy (EDX) and CMT, (3) characterizing pore-accessible reactive mineral surface area, and (4) creating network models to model acidic CO{sub 2} saturated brine injection into the sandstone rock samples.

Lindquist, W Brent

2009-03-03T23:59:59.000Z

79

Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir  

E-Print Network (OSTI)

successful waterfloods ­ Wellington field · CO2 sequestration potential of CO2-EOR ­ minor compared to deep active wells, 20.5 MM BO ­ Unitized and owned by BEREXCO ­ Excellent waterflood ­ ideal for CO2-EOR

Peterson, Blake R.

80

ENERGY STORAGE IN AQUIFERS - - A SURVEY OF RECENT THEORETICAL STUDIES  

E-Print Network (OSTI)

underground thermal energy storage. In Proc. Th~rmal1980), 'I'hermal energy storage? in a confined aquifer--al modeling of thermal energy storage in aquifers. In ~~-

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

ENERGY STORAGE IN AQUIFERS - - A SURVEY OF RECENT THEORETICAL STUDIES  

E-Print Network (OSTI)

temperature underground thermal energy storage. In Proc. Th~1980), Aquifer Thermal Energy Sto:t'age--a survey, Invit.edal modeling of thermal energy storage in aquifers. In ~~-

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

82

Aquifer thermal energy storage. International symposium: Proceedings  

DOE Green Energy (OSTI)

Aquifers have been used to store large quantities of thermal energy to supply process cooling, space cooling, space heating, and ventilation air preheating, and can be used with or without heat pumps. Aquifers are used as energy sinks and sources when supply and demand for energy do not coincide. Aquifer thermal energy storage may be used on a short-term or long-term basis; as the sole source of energy or as a partial storage; at a temperature useful for direct application or needing upgrade. The sources of energy used for aquifer storage are ambient air, usually cold winter air; waste or by-product energy; and renewable energy such as solar. The present technical, financial and environmental status of ATES is promising. Numerous projects are operating and under development in several countries. These projects are listed and results from Canada and elsewhere are used to illustrate the present status of ATES. Technical obstacles have been addressed and have largely been overcome. Cold storage in aquifers can be seen as a standard design option in the near future as it presently is in some countries. The cost-effectiveness of aquifer thermal energy storage is based on the capital cost avoidance of conventional chilling equipment and energy savings. ATES is one of many developments in energy efficient building technology and its success depends on relating it to important building market and environmental trends. This paper attempts to provide guidance for the future implementation of ATES. Individual projects have been processed separately for entry onto the Department of Energy databases.

NONE

1995-05-01T23:59:59.000Z

83

Aquifer thermal energy storage: a survey  

DOE Green Energy (OSTI)

The disparity between energy production and demand in many power plants has led to increased research on the long-term, large-scale storage of thermal energy in aquifers. Field experiments have been conducted in Switzerland, France, the United States, Japan, and the People's Republic of China to study various technical aspects of aquifer storage of both hot and cold water. Furthermore, feasibility studies now in progress include technical, economic, and environmental analyses, regional exploration to locate favorable storage sites, and evaluation and design of pilot plants. Several theoretical and modeling studies are also under way. Among the topics being studied using numerical models are fluid and heat flow, dispersion, land subsidence or uplift, the efficiency of different injection/withdrawal schemes, buoyancy tilting, numerical dispersion, the use of compensation wells to counter regional flow, steam injection, and storage in narrow glacial deposits of high permeability. Experiments to date illustrate the need for further research and development to ensure successful implementation of an aquifer storage system. Some of the areas identified for further research include shape and location of the hydrodynamic and thermal fronts, choice of appropriate aquifers, thermal dispersion, possibility of land subsidence or uplift, thermal pollution, water chemistry, wellbore plugging and heat exchange efficiency, and control of corrosion.

Tsang, C.F.; Hopkins, D.; Hellstroem, G.

1980-01-01T23:59:59.000Z

84

Property:SalinityAverage | Open Energy Information  

Open Energy Info (EERE)

SalinityAverage SalinityAverage Jump to: navigation, search Property Name SalinityAverage Property Type Number Description Mean average of the low and high end measurements of the salinity [ppm] of the fluid. This is a property of type Page. Subproperties This property has the following 1 subproperty: C Coso Geothermal Area Pages using the property "SalinityAverage" Showing 19 pages using this property. A Amedee Geothermal Area + 975 + B Beowawe Hot Springs Geothermal Area + 700 + Blue Mountain Geothermal Area + 4300 + Brady Hot Springs Geothermal Area + 3500 + C Chena Geothermal Area + 325 + D Desert Peak Geothermal Area + 6700 + Dixie Valley Geothermal Area + 2295 + E East Mesa Geothermal Area + 3750 + G Geysers Geothermal Area + 217 + K Kilauea East Rift Geothermal Area + 18750 +

85

Unconfined Aquifer Flow Theory - from Dupuit to present  

E-Print Network (OSTI)

Analytic and semi-analytic solution are often used by researchers and practicioners to estimate aquifer parameters from unconfined aquifer pumping tests. The non-linearities associated with unconfined (i.e., water table) aquifer tests makes their analysis more complex than confined tests. Although analytical solutions for unconfined flow began in the mid-1800s with Dupuit, Thiem was possibly the first to use them to estimate aquifer parameters from pumping tests in the early 1900s. In the 1950s, Boulton developed the first transient well test solution specialized to unconfined flow. By the 1970s Neuman had developed solutions considering both primary transient storage mechanisms (confined storage and delayed yield) without non-physical fitting parameters. In the last decade, research into developing unconfined aquifer test solutions has mostly focused on explicitly coupling the aquifer with the linearized vadose zone. Despite the many advanced solution methods available, there still exists a need for realism ...

Mishra, Phoolendra K

2013-01-01T23:59:59.000Z

86

Fresh Water Generation from Aquifer-Pressured Carbon Storage: Interim Progress Report  

Science Conference Proceedings (OSTI)

This project is establishing the potential for using brine pressurized by Carbon Capture and Storage (CCS) operations in saline formations as the feedstock for desalination and water treatment technologies including nanofiltration (NF) and reverse osmosis (RO). The aquifer pressure resulting from the energy required to inject the carbon dioxide provides all or part of the inlet pressure for the desalination system. Residual brine would be reinjected into the formation at net volume reduction. This process provides additional storage space (capacity) in the aquifer, reduces operational risks by relieving overpressure in the aquifer, and provides a source of low-cost fresh water to offset costs or operational water needs. Computer modeling and laboratory-scale experimentation are being used to examine mineral scaling and osmotic pressure limitations for brines typical of CCS sites. Computer modeling is being used to evaluate processes in the aquifer, including the evolution of the pressure field. This progress report deals mainly with our geochemical modeling of high-salinity brines and covers the first six months of project execution (September, 2008 to March, 2009). Costs and implementation results will be presented in the annual report. The brines typical of sequestration sites can be several times more concentrated than seawater, requiring specialized modeling codes typical of those developed for nuclear waste disposal calculations. The osmotic pressure developed as the brines are concentrated is of particular concern, as are precipitates that can cause fouling of reverse osmosis membranes and other types of membranes (e.g., NF). We have now completed the development associated with tasks (1) and (2) of the work plan. We now have a contract with Perlorica, Inc., to provide support to the cost analysis and nanofiltration evaluation. We have also conducted several preliminary analyses of the pressure effect in the reservoir in order to confirm that reservoir pressure can indeed be used to drive the reverse osmosis process. Our initial conclusions from the work to date are encouraging: (1) The concept of aquifer-pressured RO to provide fresh water associated with carbon dioxide storage appears feasible. (2) Concentrated brines such as those found in Wyoming are amenable to RO treatment. We have looked at sodium chloride brines from the Nugget Formation in Sublette County. 20-25% removal with conventional methods is realistic; higher removal appears achievable with NF. The less concentrated sulfate-rich brines from the Tensleep Formation in Sublette County would support >80% removal with conventional RO. (3) Brines from other proposed sequestration sites can now be analyzed readily. An osmotic pressure curve appropriate to these brines can be used to evaluate cost and equipment specifications. (4) We have examined a range of subsurface brine compositions that is potentially pertinent to carbon sequestration and noted the principal compositional trends pertinent to evaluating the feasibility of freshwater extraction. We have proposed a general categorization for the feasibility of the process based on total dissolved solids (TDS). (5) Withdrawing pressurized brine can have a very beneficial effect on reservoir pressure and total available storage capacity. Brine must be extracted from a deeper location in the aquifer than the point of CO{sub 2} injection to prevent CO{sub 2} from migrating to the brine extraction well.

Aines, R D; Wolery, T J; Hao, Y; Bourcier, W L

2009-07-22T23:59:59.000Z

87

EXPERIMENTAL AND THEORETICAL STUDIES OF THERMAL ENERGY STORAGE IN AQUIFERS  

E-Print Network (OSTI)

Department of Energy, Energy Storage Division through thegeneration and energy storage, Presented at Frontiers ofIn Proceed- ings of Thermal Energy Storage in Aquifers Work-

Tsang, Chin Fu

2011-01-01T23:59:59.000Z

88

Simulation analysis of the unconfined aquifer, Raft River Geothermal...  

Open Energy Info (EERE)

Simulation analysis of the unconfined aquifer, Raft River Geothermal Area, Idaho-Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Simulation analysis of...

89

Why sequence archaea in a terrestrial subsurface aquifer?  

NLE Websites -- All DOE Office Websites (Extended Search)

genome sequencing. Principal Investigators: Wen-Tso Liu, University of Illinois Program: CSP 2011 Home > Sequencing > Why sequence archaea in a terrestrial subsurface aquifer...

90

AQUIFER THERMAL ENERGY STORAGE. A NUMERICAL SIMULATION OF AUBURN UNIVERSITY FIELD EXPERIMENTS  

E-Print Network (OSTI)

University Thermal Energy Storage , LBL No. 10194. Edwards,modeling of thermal energy storage in aquifers, ProceedingsAquifer Thermal Energy Storage Programs (in preparation).

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

91

SEASONAL THERMAL ENERGY STORAGE IN AQUIFERS-MATHEMATICAL MODELING STUDIES IN 1979  

E-Print Network (OSTI)

of Aquifer Thermal Energy Storage." Lawrence BerkeleyP, Andersen, "'rhermal Energy Storage in a Confined Aquifer~University Thermal Energy Storage Experiment." Lawrence

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

92

SEASONAL THERMAL ENERGY STORAGE IN AQUIFERS-MATHEMATICAL MODELING STUDIES IN 1979  

E-Print Network (OSTI)

Aspects of Aquifer Thermal Energy Storage." Lawrencethe Auburn University Thermal Energy Storage Experiment."LBL~l0208 SEASONAL THERMAL ENERGY STORAGE IN AQUIFERS~

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

93

THEORETICAL STUDIES IN LONG-TERM THERMAL ENERGY STORAGE IN AQUIFERS  

E-Print Network (OSTI)

Mathematical Modeling of Thermal Energy Storage in Aquifers.Proceedings of Aquifer Thermal Energy Storage Workshop,within the Seasonal Thermal Energy Storage program managed

Tsang, C.F.

2013-01-01T23:59:59.000Z

94

Salinity Variations in the Southern California Current  

Science Conference Proceedings (OSTI)

Hydrographic observations southwestward of the Southern California Bight in the period 193799 show that temperature and salinity variations have very different interannual variability. Temperature varies within and above the thermocline and is ...

Niklas Schneider; Emanuele Di Lorenzo; Pearn P. Niiler

2005-08-01T23:59:59.000Z

95

Salinity Transport in the Florida Straits  

Science Conference Proceedings (OSTI)

A submarine cable across the Florida Straits yields a time series of volume and temperature transports using previously determined calibrations, and here a calibration is defined for salinity transport using data not yet compared to the cable. ...

Zoltan B. Szuts; Chris Meinen

2013-05-01T23:59:59.000Z

96

Treating nahcolite containing formations and saline zones  

Science Conference Proceedings (OSTI)

A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity cogeneration facility. The heated water is provided to the nahcolite containing formation. A fluid is produced from the nahcolite containing formation. The fluid includes at least some dissolved nahcolite. At least some of the fluid is provided to the saline zone.

Vinegar, Harold J

2013-06-11T23:59:59.000Z

97

Geopressured-geothermal aquifers. Final contract report  

SciTech Connect

Task 1 is to provide petrophysical and reservoir analysis of wells drilled into geopressured-geothermal aquifers containing dissolved methane. The list of Design Wells and Wells of Opportunity analyzed: Fairfax Foster Sutter No. 2 (WOO), Pleasant Bayou No. 2 (Design), Amoco Fee No. 1 (Design), G.M. Koelemay No. 1 (WOO), Gladys McCall No. 1 (Design), P.R. Girouard No. 1 (WOO), and Crown Zellerbach No. 2 (WOO). Petrophysical and reservoir analysis of the above wells were performed based on availability of data. The analysis performed on each well, the assumptions made during simulation, and conclusions reached.

Not Available

1983-08-01T23:59:59.000Z

98

Aquifer thermal energy (heat and chill) storage  

DOE Green Energy (OSTI)

As part of the 1992 Intersociety Conversion Engineering Conference, held in San Diego, California, August 3--7, 1992, the Seasonal Thermal Energy Storage Program coordinated five sessions dealing specifically with aquifer thermal energy storage technologies (ATES). Researchers from Sweden, The Netherlands, Germany, Switzerland, Denmark, Canada, and the United States presented papers on a variety of ATES related topics. With special permission from the Society of Automotive Engineers, host society for the 1992 IECEC, these papers are being republished here as a standalone summary of ATES technology status. Individual papers are indexed separately.

Jenne, E.A. (ed.)

1992-11-01T23:59:59.000Z

99

Interpretation of earth tide response of three deep, confined aquifers |  

Open Energy Info (EERE)

Interpretation of earth tide response of three deep, confined aquifers Interpretation of earth tide response of three deep, confined aquifers Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Interpretation of earth tide response of three deep, confined aquifers Details Activities (3) Areas (3) Regions (0) Abstract: The response of a confined, areally infinite aquifer to external loads imposed by earth tides is examined. Because the gravitational influence of celestial objects occurs over large areas of the earth, the confined aquifer is assumed to respond in an undrained fashion. Since undrained response is controlled by water compressibility, earth tide response can be directly used only to evaluate porous medium compressibility if porosity is known. Moreover, since specific storage S/sub s/ quantifies a drained behavior of the porous medium, one cannot

100

Sole Source Aquifer Demonstration Program | Open Energy Information  

Open Energy Info (EERE)

Sole Source Aquifer Demonstration Program Sole Source Aquifer Demonstration Program Jump to: navigation, search Statute Name Sole Source Aquifer Demonstration Program Year 1986 Url [[File:|160px|link=http://www.gpo.gov/fdsys/search/pagedetails.action?browsePath=Title+42%2FChapter+6a%2FSubchapter+Xii%2FPart+C%2FSec.+300h-6&granuleId=USCODE-2010-title42-chap6A-subchapXII-partC-sec300h-6&packageId=USCODE-2010-title42&collapse=true&fromBrowse=true&bread=true]] Description References US GPO - 42 USC 300H-6[1] Key Dates in Water History[2] The Sole Source Aquifer Demonstration Program provides funding to identify and provide the special protections needed for sole source aquifers. This statute required States with primacy to adopt regulations and begin enforcing them within 18 months of the EPA's promulgation.

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Method for isolating two aquifers in a single borehole  

DOE Patents (OSTI)

A method for isolating and individually instrumenting separate aquifers within a single borehole is disclosed. A borehole is first drilled from the ground surface, through an upper aquifer, and into a separating confining bed. A casing, having upper and lower sections separated by a coupling collar, is lowered into the borehole. The borehole is grouted in the vicinity of the lower section of the casing. A borehole is then drilled through the grout plug and into a lower aquifer. After the lower aquifer is instrumented, the borehole is grouted back into the lower portion of the casing. Then the upper section of the casing is unscrewed via the coupling collar and removed from the borehole. Finally, instrumentation is added to the upper aquifer and the borehole is appropriately grouted. The coupling collar is designed to have upper right-hand screw threads and lower left-hand screw thread, whereby the sections of the casing can be readily separated.

Burklund, P.W.

1984-01-20T23:59:59.000Z

102

Feasibility studies of aquifer thermal energy storage  

DOE Green Energy (OSTI)

Determining the feasibility of using aquifer thermal energy storage (ATES) for a particular heating or cooling application is an interdisciplinary effort, requiring (at a minimum) expertise in engineering and hydrology. The feasibility study should proceed in two distinct stages. The first stage, which is limited in scope and detail, is intended to show if an ATES system is technically and economically suited to the application. Focus of this preliminary investigation is on revealing the existence of factors that might weigh heavily against the use of ATES methods, and, in the absence of such factors, on choosing a suitable scale for the ATES plant and well field. The results of the preliminary investigation are used to determine if more detailed investigation--including field studies--are justified, and to facilitate comparing the advantages of ATES to those of other means of providing heating or cooling. The second stage of the feasibility study focuses on detailed aquifer characterization, refinement of engineering design and cost estimates, and economic and environmental risk analysis. The results of this investigation, if favorable, will be used to justify the expense of constructing the ATES system.

Hall, S H

1993-01-01T23:59:59.000Z

103

Natural gas content of geopressured aquifers  

DOE Green Energy (OSTI)

It is hypothesized that free, but immobile, natural gas is trapped in pores in geopressured aquifers and that this gas becomes mobile as aquifer pressure is reduced by water production. Computer simulation reveals this hypothesis is a plausible explanation for the high gas/water ratio observed from the No. 1 sand in the Edna Delcambre No. 1 well. In this Delcambre well test, the gas/water ratio increased from the solution gas value of less than 20 SCF/bbl to more than 50 SCF/bbl during production of 32,000 barrels of water in 10 days. Bottom hole pressure was reduced from 10,846 to 9,905 psia. The computer simulation reveals that such increased gas production requires relative permeability to gas(k{sub rg}) increase from less than 10{sup -4} to about 10{sup -3} due to a decrease in fractional water saturation of pores (S{sub w}) of only about 0.001. Further, assuming drainage relative permeabilities are as calculated by the method of A.T. Corey{sup 1}, initial gas saturation of pores must be greater than 0.065. Means for achieving these initial conditions during geological time will be qualitatively discussed, and the effect of trapped gas upon long-term production will be described.

Randolph, Philip L.

1977-01-01T23:59:59.000Z

104

Formation dry-out from CO2 injection into saline acquifers: Part 2, Analytical model for salt precipitation  

E-Print Network (OSTI)

Formation in Natural Gas Storage Aquifers, Proceedings,in aquifer storage projects for natural gas (Lorenz and

Pruess, Karsten

2009-01-01T23:59:59.000Z

105

Initial study of thermal energy storage in unconfined aquifers. [UCATES  

DOE Green Energy (OSTI)

Convective heat transport in unconfined aquifers is modeled in a semi-analytic way. The transient groundwater flow is modeled by superposition of analytic functions, whereby changes in the aquifer storage are represented by a network of triangles, each with a linearly varying sink distribution. This analytic formulation incorporates the nonlinearity of the differential equation for unconfined flow and eliminates numerical dispersion in modeling heat convection. The thermal losses through the aquifer base and vadose zone are modeled rather crudely. Only vertical heat conduction is considered in these boundaries, whereby a linearly varying temperature is assumed at all times. The latter assumption appears reasonable for thin aquifer boundaries. However, assuming such thin aquifer boundaries may lead to an overestimation of the thermal losses when the aquifer base is regarded as infinitely thick in reality. The approach is implemented in the computer program UCATES, which serves as a first step toward the development of a comprehensive screening tool for ATES systems in unconfined aquifers. In its present form, the program is capable of predicting the relative effects of regional flow on the efficiency of ATES systems. However, only after a more realistic heatloss mechanism is incorporated in UCATES will reliable predictions of absolute ATES efficiencies be possible.

Haitjema, H.M.; Strack, O.D.L.

1986-04-01T23:59:59.000Z

106

Property:SalinityLow | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:SalinityLow Jump to: navigation, search Property Name SalinityLow Property Type Number Description Describes lower end measurements of salinity [ppm] of the geothermal fluid. This is a property of type Page. Subproperties This property has the following 17 subproperties: B Beowawe Hot Springs Geothermal Area Blue Mountain Geothermal Area Brady Hot Springs Geothermal Area C Chena Geothermal Area Coso Geothermal Area D Desert Peak Geothermal Area D cont. Dixie Valley Geothermal Area E East Mesa Geothermal Area G Geysers Geothermal Area K Kilauea East Rift Geothermal Area L Lightning Dock Geothermal Area R Raft River Geothermal Area Roosevelt Hot Springs Geothermal Area S Salt Wells Geothermal Area Salton Sea Geothermal Area

107

Aquitard control of stream-aquifer interaction and flow to a horizontal well in coastal aquifers  

E-Print Network (OSTI)

This dissertation is composed of three parts of major contributions: In Chapter II, we developed a new conceptual model and derived a new semi-analytical model for flow to a horizontal well beneath a water reservoir. Instead of treating the leakage from aquitard as a source term inside the aquifer which is called Hantushâ??s assumption (1964), we linked flows in aquitard and aquifer by the idea of continuity of flux and drawdown. The result in this chapter is compared with that of Zhan and Park in 2003 which Hantushâ??s assumption is adopted at various hydraulic and well configurations. It shows that Hantushâ??s assumption becomes inaccurate in regions where vertical velocity components are significant. In Chapter III, we deal with the interaction of an aquifer with two parallel surface water bodies such as two streams or canals. In this chapter, new closed-form analytical and semi-analytical solutions are acquired for the pumping induced dynamic interaction between two streams and ground water for two different cases. In the first case, the sediment layers separating the streams from the aquifer ground water do not exist. In the second case, the two low permeable layers are considered. The effect of aquitard and water right competition is addressed in this chapter. This model can be used for interpreting and deriving hydrologic parameters of aquitard and aquifer when pumping occurs between two channels. It can also be used to predict stream depletion which is essential for water management and ecology conservation. In Chapter IV, we investigated the three dimensional upconing due to a finite-length of horizontal well and its critical conditions. The results are compared with those of vertical wells. The critical condition which includes the critical rise and the critical time at a certain pumping rate depends on the well length, the initial interface location, the well location, and the pumping rate. Our results show that horizontal well might be a better tool for coastal groundwater resources development. In real field applications, installing long wells as shallow as possible is always desirable for sustaining long periods of pumping with significant rates.

Sun, Dongmin

2005-12-01T23:59:59.000Z

108

Large Lenses of Highly Saline Mediterranean Water  

Science Conference Proceedings (OSTI)

Isolated compact anticyclonic eddies or salt lenses were found in the Canary Basin. Hydrographic surveys of three such lenses show large anomalies of salinity and temperature (0.8, 2.5C). They are centered at 1100 m, have a vertical extent of ...

Laurence Armi; Walter Zenk

1984-10-01T23:59:59.000Z

109

Simulation analysis of the unconfined aquifer, Raft River Geothermal Area,  

Open Energy Info (EERE)

Simulation analysis of the unconfined aquifer, Raft River Geothermal Area, Simulation analysis of the unconfined aquifer, Raft River Geothermal Area, Idaho-Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Simulation analysis of the unconfined aquifer, Raft River Geothermal Area, Idaho-Utah Details Activities (1) Areas (1) Regions (0) Abstract: This study covers about 1000 mi2 (2600 km2) of the southern Raft River drainage basin in south-central Idaho and northwest Utah. The main area of interest, approximately 200 mi2 (520 km2) of semiarid agricultural and rangeland in the southern Raft River Valley that includes the known Geothermal Resource Area near Bridge, Idaho, was modelled numerically to evaluate the hydrodynamics of the unconfined aquifer. Computed and estimated transmissivity values range from 1200 feet squared per day (110

110

Uncertainty analysis of capacity estimates and leakage potential for geologic storage of carbon dioxide in saline aquifers  

E-Print Network (OSTI)

The need to address climate change has gained political momentum, and Carbon Capture and Storage (CCS) is a technology that is seen as being feasible for the mitigation of carbon dioxide emissions. However, there is ...

Raza, Yamama

2009-01-01T23:59:59.000Z

111

FEWA: a Finite Element model of Water flow through Aquifers  

Science Conference Proceedings (OSTI)

This report documents the implementation and demonstration of a Finite Element model of Water flow through Aquifers (FEWA). The particular features of FEWA are its versatility and flexibility to deal with as many real-world problems as possible. Point as well as distributed sources/sinks are included to represent recharges/pumpings and rainfall infiltrations. All sources/sinks can be transient or steady state. Prescribed hydraulic head on the Dirichlet boundaries and fluxes on Neumann or Cauchy boundaries can be time-dependent or constant. Source/sink strength over each element and node, hydraulic head at each Dirichlet boundary node, and flux at each boundary segment can vary independently of each other. Either completely confined or completely unconfined aquifers, or partially confined and partially unconfined aquifers can be dealt with effectively. Discretization of a compound region with very irregular curved boundaries is made easy by including both quadrilateral and triangular elements in the formulation. Large-field problems can be solved efficiently by including a pointwise iterative solution strategy as an optional alternative to the direct elimination solution method for the matrix equation approximating the partial differential equation of groundwater flow. FEWA also includes transient flow through confining leaky aquifers lying above and/or below the aquifer of interest. The model is verified against three simple cases to which analytical solutions are available. It is then demonstrated by two examples of how the model can be applied to heterogeneous and anisotropic aquifers with transient boundary conditions, time-dependent sources/sinks, and confining aquitards for a confined aquifer of variable thickness and for a free surface problem in an unconfined aquifer, respectively. 20 references, 25 figures, 8 tables.

Yeh, G.T.; Huff, D.D.

1983-11-01T23:59:59.000Z

112

Theoretical analysis of heat transfer in semi-infinite aquifer  

SciTech Connect

A simple model for temperature within an unconfined semi-infinite aquifer is proposed with ground water flowing perpendicular to heat flow. The authors results show that it is possible to correct the observed geothermal gradient in order to obtain the undisturbed gradient, to identify the portion of the aquifer where the perturbation produced by water motion is unimportant, and to recognize the depth and distance from the recharge zone where water temperature is higher and can be exploited for low enthalpy utilization.

Mongelli, F. (Univ. di Bari (Italy). Dipt. di Geologia e Geofisica)

1994-04-01T23:59:59.000Z

113

Commercialization of aquifer thermal energy storage technology  

DOE Green Energy (OSTI)

Pacific Northwest Laboratory (PNL) conducted this study for the US Department of Energy's (DOE) Office of Energy Storage and Distribution. The purpose of the study was to develop and screen a list of potential entry market applications for aquifer thermal energy storage (ATES). Several initial screening criteria were used to identify promising ATES applications. These include the existence of an energy availability/usage mismatch, the existence of many similar applications or commercial sites, the ability to utilize proven technology, the type of location, market characteristics, the size of and access to capital investment, and the number of decision makers involved. The in-depth analysis identified several additional screening criteria to consider in the selection of an entry market application. This analysis revealed that the best initial applications for ATES are those where reliability is acceptable, and relatively high temperatures are allowable. Although chill storage was the primary focus of this study, applications that are good candidates for heat ATES were also of special interest. 11 refs., 3 tabs.

Hattrup, M.P.; Weijo, R.O.

1989-09-01T23:59:59.000Z

114

Saline, Michigan: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Saline, Michigan: Energy Resources Saline, Michigan: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 42.1667072°, -83.7816075° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.1667072,"lon":-83.7816075,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

115

FEMA: a Finite Element Model of Material Transport through Aquifers  

Science Conference Proceedings (OSTI)

This report documents the construction, verification, and demonstration of a Finite Element Model of Material Transport through Aquifers (FEMA). The particular features of FEMA are its versatility and flexibility to deal with as many real-world problems as possible. Mechanisms included in FEMA are: carrier fluid advection, hydrodynamic dispersion and molecular diffusion, radioactive decay, sorption, source/sinks, and degradation due to biological, chemical as well as physical processes. Three optional sorption models are embodied in FEMA. These are linear isotherm and Freundlich and Langmuir nonlinear isotherms. Point as well as distributed source/sinks are included to represent artificial injection/withdrawals and natural infiltration of precipitation. All source/sinks can be transient or steady state. Prescribed concentration on the Dirichlet boundary, given gradient on the Neumann boundary segment, and flux at each Cauchy boundary segment can vary independently of each other. The aquifer may consist of as many formations as desired. Either completely confined or completely unconfined or partially confined and partially unconfined aquifers can be dealt with effectively. FEMA also includes transient leakage to or from the aquifer of interest through confining beds from or to aquifers lying below and/or above.

Yeh, G.T.; Huff, D.D.

1985-01-01T23:59:59.000Z

116

Aquifer test at Comore Loma No. 4, Idaho Falls, Idaho  

DOE Green Energy (OSTI)

An aquifer test was conducted at Comore Loma Well {number_sign}4 to determine the aquifer hydraulic characteristics at this location on July 11 and 12, 1991. Water was withdrawn from Comore Loma Well {number_sign}4 at approximately 850 gallons per minute for 8 hours while monitoring the water level in the plumping well and an observation well 930 ft away. The pumped well showed over 12 ft of drawdown with no discernable drawdown in the observation well. The drawdown in the pumped well was nearly instantaneous, showing little additional drawdown after 1 minute. The transmissivity was calculated to be approximately 140,000 ft{sup 2}/day using the Jacob solution. This gives a hydraulic conductivity of 1300 ft/day for the 110 ft interval tested. The high transmissivity and geologic setting suggest the aquifer may in part produce water from the Snake River Plain aquifer. However, the warm water temperature (71{degrees}F) indicates the presence of a geothermal source typical of the foothills aquifer. The storage coefficient could not be calculated since no water level decline was detected in the observation well.

Hubbell, J.M.

1991-12-01T23:59:59.000Z

117

AQUIFER THERMAL ENERGY STORAGE. A NUMERICAL SIMULATION OF AUBURN UNIVERSITY FIELD EXPERIMENTS  

E-Print Network (OSTI)

C.F. , 1980, "Aquifer Thermal Energy - Parameter Study" (infrom the Auburn University Thermal Energy Storage , LBL No.studies in aquifer thermal energy , Presented at the ~~~~~~~

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

118

Geochemical modeling of an aquifer storage and recovery project in Union County, Arkansas  

E-Print Network (OSTI)

The Sparta aquifer in Union County, Arkansas has served as an important potable water supply to the public and industrial sectors in the area. However, increasing water demand and sustained heavy pumping from the aquifer ...

Zhu, Ni, M. Eng. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

119

Regional Analysis And Characterization Of Fractured Aquifers In The  

Open Energy Info (EERE)

Analysis And Characterization Of Fractured Aquifers In The Analysis And Characterization Of Fractured Aquifers In The Virginia Blue Ridge And Piedmont Provinces Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Regional Analysis And Characterization Of Fractured Aquifers In The Virginia Blue Ridge And Piedmont Provinces Details Activities (1) Areas (1) Regions (0) Abstract: Areas related to low-temperature geothermal applications include the recognition of and exploration for deep fracture permeability in crystalline rocks. It is well known that the best currently available downhole techniques to identify the locations of fracture zones in crystalline rocks depend upon the measurement of some thermal parameter such as temperature or heat flow. The temperature-depth profiles and their derivatives provide a direct indication of those fracture zones that

120

Why sequence Sulfur cycling in the Frasassi aquifer?  

NLE Websites -- All DOE Office Websites (Extended Search)

sulfur cycling in the Frasassi aquifer? sulfur cycling in the Frasassi aquifer? The terrestrial subsurface remains one of the least explored microbial habitats on earth, and is critical for understanding pollutant migration and attenuation, subsurface processes such as limestone dissolution (affecting porosity), and the search for life elsewhere in the solar system and beyond. The deep and sulfidic Frasassi aquifer (of Ancona, Italy) has emerged as a model system for studying sulfur cycling in the terrestrial subsurface, and this sequencing project has relevance for developing applications for wastewater treatment and capabilities relevant for radionuclide, metal and organic pollutant remediation that can be applied at environments at DOE subsurface sites. Principal Investigators: Jennifer Macalady, Penn State University

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Accidental Gas Emission From Shallow Pressurized Aquifers At Alban Hills  

Open Energy Info (EERE)

Accidental Gas Emission From Shallow Pressurized Aquifers At Alban Hills Accidental Gas Emission From Shallow Pressurized Aquifers At Alban Hills Volcano (Rome, Italy)- Geochemical Evidence Of Magmatic Degassing? Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Accidental Gas Emission From Shallow Pressurized Aquifers At Alban Hills Volcano (Rome, Italy)- Geochemical Evidence Of Magmatic Degassing? Details Activities (0) Areas (0) Regions (0) Abstract: Recent studies suggested that Alban Hills (Rome) is a quiescent and not an extinct volcano, as it produced Holocene eruptions and several lahars until Roman times by water overflow from the Albano crater lake. Alban Hills are presently characterized by high PCO2 in groundwaters and by several cold gas emissions usually in sites where excavations removed the

122

Legal and regulatory issues affecting aquifer thermal energy storage  

DOE Green Energy (OSTI)

This document updates and expands the report with a similar title issued in October 1980. This document examines a number of legal and regulatory issues that potentially can affect implementation of the aquifer thermal energy storage (ATES) concept. This concept involves the storage of thermal energy in an underground aquifer until a later date when it can be effectively utilized. Either heat energy or chill can be stored. Potential end uses of the energy include district space heating and cooling, industrial process applications, and use in agriculture or aquaculture. Issues are examined in four categories: regulatory requirements, property rights, potential liability, and issues related to heat or chill delivery.

Hendrickson, P.L.

1981-10-01T23:59:59.000Z

123

Modelling well leakage in multilayer aquifer systems using the extended finite element method  

Science Conference Proceedings (OSTI)

The extended finite element method (XFEM) is applied to the problem of predicting the steady-state leakage from layered sedimentary aquifer systems perforated by abandoned wells. Multi-aquifer systems are modelled using a quasi-three-dimensional model ... Keywords: Extended finite element method, GFEM, Generalised finite element method, Leakage, Multi-aquifer systems, XFEM

Robert Gracie; James R. Craig

2010-06-01T23:59:59.000Z

124

Simulation of coastal groundwater remediation: the case of Nard fractured aquifer in Southern Italy  

Science Conference Proceedings (OSTI)

A new theoretical approach for evaluating the sharp interface position in a fractured aquifer was applied to the Nardo aquifer (Southern Italy). The results, based on Dupuit and Ghyben-Herzberg approximations, clearly show both the extent of seawater ... Keywords: Coastal springs, Fractured aquifers, Mathematical models, Seawater intrusion

Costantino Masciopinto

2006-01-01T23:59:59.000Z

125

Coal Energy Conversion with Aquifer-Based Carbon Sequestration: An Approach to Electric Power Generation with  

E-Print Network (OSTI)

Coal Energy Conversion with Aquifer-Based Carbon Sequestration: An Approach to Electric Power an impermeable seal to prevent it from escaping the aquifer. The proposed alternative technology processes coal carbon and non-mineral coal combustion products in the process. This stream is denser than the aquifer

Nur, Amos

126

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Injection of 40,000 tons of CO2 into the Arbuckle Saline Reservoir. Observe responses using a wide array of MVA techniques and determine CO2 storage capacity. Includes temporary...

127

Environmental risk assessment for aquifer thermal energy storage  

DOE Green Energy (OSTI)

This report has been prepared by Pacific Northwest Laboratory at the request of the International Energy Agency (IEA). The US Department of Energy represents the United States in the IEA for Annex IV, the IEA task for research and development in aquifer thermal energy storage (ATES). Installation and operation of an ATES system is necessarily intrusive to ground-water resources. Therefore, governmental authorities usually require an environmental risk assessment to be performed before permission to construct an ATES system is granted. Writing an accurate statement of risk presupposes a knowledge of aquifer and ground-water characteristics and that an engineering feasibility study has taken place. Effective and logical presentation of the results of the risk assessment can expedite the grant of approval. Introductory remarks should address questions regarding why the ATES project has been proposed, what it is expected to accomplish, and what the expected benefits are. Next, the system configuration, including the aquifer, ATES plant, and well field, should be described in terms of size and location, design components, and thermal and hydraulic capacity. The final element of system design, the predicted annual operating cycle, needs to be described in sufficient detail to allow the reviewer to appreciate the net hydraulic, thermal, and hydrochemical effects imposed on the aquifer. Risks may be environmental or legal. Only after a reviewer has been introduced to the proposed system`s design, operation, and scale can risk issues can be identified and weighed against the benefits of the proposed ATES system.

Hall, S.H.

1993-01-01T23:59:59.000Z

128

Environmental risk assessment for aquifer thermal energy storage  

DOE Green Energy (OSTI)

This report has been prepared by Pacific Northwest Laboratory at the request of the International Energy Agency (IEA). The US Department of Energy represents the United States in the IEA for Annex IV, the IEA task for research and development in aquifer thermal energy storage (ATES). Installation and operation of an ATES system is necessarily intrusive to ground-water resources. Therefore, governmental authorities usually require an environmental risk assessment to be performed before permission to construct an ATES system is granted. Writing an accurate statement of risk presupposes a knowledge of aquifer and ground-water characteristics and that an engineering feasibility study has taken place. Effective and logical presentation of the results of the risk assessment can expedite the grant of approval. Introductory remarks should address questions regarding why the ATES project has been proposed, what it is expected to accomplish, and what the expected benefits are. Next, the system configuration, including the aquifer, ATES plant, and well field, should be described in terms of size and location, design components, and thermal and hydraulic capacity. The final element of system design, the predicted annual operating cycle, needs to be described in sufficient detail to allow the reviewer to appreciate the net hydraulic, thermal, and hydrochemical effects imposed on the aquifer. Risks may be environmental or legal. Only after a reviewer has been introduced to the proposed system's design, operation, and scale can risk issues can be identified and weighed against the benefits of the proposed ATES system.

Hall, S.H.

1993-01-01T23:59:59.000Z

129

Estimation of formation strength index of aquifer from neural networks  

Science Conference Proceedings (OSTI)

The purpose of this study is to construct a model that predicts an aquifer's formation strength index (the ratio of shear modulus and bulk compressibility, G/C"b) from geophysical well logs by using a back-propagation neural network (BPNN). The BPNN ... Keywords: Back-propagation neural networks, Geophysical well logs, Groundwater, Soft computing

Bieng-Zih Hsieh; Chih-Wen Wang; Zsay-Shing Lin

2009-09-01T23:59:59.000Z

130

Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers  

E-Print Network (OSTI)

Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers by Tom Myers Abstract Hydraulic fracturing of deep shale beds to develop natural gas has caused concern regarding the potential and preferential flow through fractures--could allow the transport of contaminants from the fractured shale

131

Study of the Use of Saline Formations for Combined Thermoelectric...  

NLE Websites -- All DOE Office Websites (Extended Search)

Study of the Use of Saline Formations for Combined Thermoelectric Power Plant Water Needs and Carbon Sequestration at a Regional-Scale Background Thermoelectric power plants are...

132

Soil Salinity Abatement Following Hurricane Ike  

E-Print Network (OSTI)

In September 2008 Hurricane Ike hit the Texas Gulf Coast with a force stronger than the category 2 storm at which it was rated. With a 3.8 m (12.5 ft) storm surge, the agricultural industry in the area was devastated. The goal of this research was to determine the length of time required to reduce the salt levels brought by the storm surge to near pre-hurricane levels. To do this, four sets of samples were taken across two years and analyzed for salinity using the saturated paste extract method. The initial salt levels in November 2008 had an electrical conductivity (ECe) of the inundated soils as high as 26.7 dS/m. Fifty-four percent of the soils sampled in the 0-15 cm horizons and 9% in the 15-30 cm horizons of the edge area had an ECe >= 4 dS/m. In the surge area 79% of the soils sampled in the 0-15 cm horizons and 30% in the 15-30 cm horizons had an ECe >= 4 dS/m. In April 2009, 38% of the soils sampled in the 0-15 cm horizons and 13% in the 15-30 cm horizons of the edge area had an ECe >= 4 dS/m. In the surge area 71% of the soils sampled in the 0-15 cm horizons and 39% in the 15-30 cm horizons had an ECe >= 4 dS/m. By December 2009, none of the soils sampled in the edge area had an ECe >= 4 dS/m. In the surge area 21% of the soils sampled in the 0-15 cm horizons and 33% in the 15-30 cm horizons had an ECe >= 4 dS/m. By October 2010, all soils sampled had leached sufficient salts to be classified as non-saline to very slightly saline soils. Utilizing the November 2008 data set, 28 random samples were selected for exchangeable Na percent (ESP) in order to develop the ESP-SAR (Na adsorption ratio) predictive equation, ESP= 1.19(SAR)^0.82. The SAR-ESP relationship is statistically significant (95% confidence level), with a correlation coefficient of 0.964 (df=26).

Mueller, Ryan

2012-08-01T23:59:59.000Z

133

AUTOMATED WATER LEVEL MEASUREMENTS IN SMALL-DIAMETER AQUIFER TUBES  

Science Conference Proceedings (OSTI)

Groundwater contaminated with hexavalent chromium, strontium-90, and uranium discharges into the Columbia River along approximately 16 km (10 mi) of the shoreline. Various treatment systems have and will continue to be implemented to eliminate the impact of Hanford Site contamination to the river. To optimize the various remediation strategies, it is important to understand interactions between groundwater and the surface water of the Columbia River. An automated system to record water levels in aquifer sampling tubes installed in the hyporheic zone was designed and tested to (1) gain a more complete understanding of groundwater/river water interactions based on gaining and losing conditions ofthe Columbia River, (2) record and interpret data for consistent and defensible groundwater/surface water conceptual models that may be used to better predict subsurface contaminant fate and transport, and (3) evaluate the hydrodynamic influence of extraction wells in an expanded pump-and-treat system to optimize the treatment system. A system to measure water levels in small-diameter aquifer tubes was designed and tested in the laboratory and field. The system was configured to allow manual measurements to periodically calibrate the instrument and to permit aquifer tube sampling without removing the transducer tube. Manual measurements were collected with an e-tape designed and fabricated especially for this test. Results indicate that the transducer system accurately records groundwater levels in aquifer tubes. These data are being used to refine the conceptual and numeric models to better understand interactions in the hyporheic zone of the Columbia River and the adjacent river water and groundwater, and changes in hydrochemistry relative to groundwater flux as river water recharges the aquifer and then drains back out in response to changes in the river level.

PETERSEN SW; EDRINGTON RS; MAHOOD RO; VANMIDDLESWORTH PE

2011-01-14T23:59:59.000Z

134

Descriptive analysis of aquifer thermal energy storage systems  

DOE Green Energy (OSTI)

The technical and economic feasibility of large-scale aquifer thermal energy storage (ATES) was examined. A key to ATESs attractiveness is its simplicity of design and construction. The storage device consists of two ordinary water wells drilled into an aquifer, connected at the surface by piping and a heat exchanger. During the storage cycle water is pumped out of the aquifer, through the heat exchanger to absorb thermal energy, and then back down into the aquifer through the second well. The thermal storage remains in the aquifer storage bubble until required for use, when it is recovered by reversing the storage operation. For many applications the installation can probably be designed and constructed using existing site-specific information and modern well-drilling techniques. The potential for cost-effective implementation of ATES was investigated in the Twin Cities District Heating-Cogeneration Study in Minnesota. In the study, ATES demonstrated a net energy saving of 32% over the nonstorage scenario, with an annual energy cost saving of $31 million. Discounting these savings over the life of the project, the authors found that the break-even capital cost for ATES construction was $76/kW thermal, far above the estimated ATES development cost of $23 to 50/kW thermal. It appears tht ATES can be highly cost effective as well as achieve substantial fuel savings. ATES would be environmentally beneficial and could be used in many parts of the USA. The existing body of information on ATES indicates that it is a cost-effective, fuel-conserving technique for providing thermal energy for residential, commercial, and industrial users. The negative aspects are minor and highly site-specific, and do not seem to pose a threat to widespread commercialization. With a suitable institutional framework, ATES promises to supply a substantial portion of the nation's future energy needs. (LCL)

Reilly, R.W.

1980-06-01T23:59:59.000Z

135

Aquifer characterization at the Veterans Administration Hospital, Tuscaloosa, Alabama  

DOE Green Energy (OSTI)

The Veterans Administration (VA) is studying the feasibility of aquifer thermal storage (ATES) at their Tuscaloosa, Alabama, facility. To determine the characteristics of the aquifer underlying the facility, the Pacific Northwest Laboratory gathered information about the environment of the aquifer and conducted tests to estimate the aquifer's transmissivity, ground-water flow direction, and velocity. Seven wells were drilled at the VA site. It was found that ground-water flow direction at the site is generally toward the southwest. The magnitude of the gradient is approximately 2.5 {times} 10{sup -3} to 3 {times} 10{sup -3} ft/ft. For six of the seven wells, clay lenses or thick clay layers appear to be acting locally as confining or semi-confining layers. Three types of test were conducted at the site: a step drawdown test, a constant discharge and recover test, and a single-well tracer test. The data yielded responses suggesting leaky confined or delayed yield models for the aquifer. Drawdown and recovery versus time were matched type curves for delayed yield to obtain estimates of transmissivity and storage. This recovery method gave the best fit to the drawdown-versus-time curves. Using this method it was found that transmissivity ranged from 500 to 9000 ft{sup 2}/day and storage ranged from 1.5 {times} 10{sup -4} to 4.5 {times} 10{sup -2} for the wells tested. Using the results of the pump and tracer tests simultaneously, ground-water velocity was estimated to be approximately 0.8 ft/day, with an effective porosity of approximately 12%. 4 refs., 7 figs., 3 tabs.

Cronin, W.E.; Luttrell, S.P.; Hall, S.H.

1989-10-01T23:59:59.000Z

136

Appendix B Surface Infiltration and Aquifer Test Data  

Office of Legacy Management (LM)

B B Surface Infiltration and Aquifer Test Data This page intentionally left blank Infiltration Tests This page intentionally left blank 0 50 100 150 200 250 300 350 400 450 TIME (MIN) 200 250 TIME (MIN) 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 TIME (MIN) zoo 800 1000 TIME (MIN) 0 150 300 450 600 750 , 900 1050 1200 1350 1500 1650 1800 TIME (MIN) TIME (MIN) 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 TIME (MIN) INF-8 TEST I 300 400 TIME (MIN) INF-8 TEST 2 200 250 300 TIME (MIN) 200 250 TIME (MIN) zoo 800 1000 TIME (MIN) 0 50 100 150 200 250 300 350 400 450 500 550 600 TIME (MIN) 0 50 100 150 200 250 300 350 400 450 500 550 600 TIME (MIN) September 1997 Alluvial Aquifer Tests This page intentionally left blank - - - - - - - - - - - - - - -

137

Sizing a water softener for aquifer thermal energy storage  

DOE Green Energy (OSTI)

In aquifer thermal energy storage (ATES) installations, ground water is circulated between an aquifer and heat exchangers via a well field. It is often necessary to soften the water to prevent carbonate scaling in pipes, heat exchangers, and well screens. Most ATES projects requiring water softening will be best served by using synthetic ion-exchange resins. The size of the resin beds, the resin regeneration cycle, and the amount of NaCl brine used in each regeneration depend on several factors. These are (1) the chemistry of the native ground water, (2) allowable residual hardness after softening, (3) the maximum flow rate of water through the ATES plant, and (4) exchange characteristics of the resin. Example calculations are given for a three-bed water softening system.

Hall, S.H.; Jenne, E.A.

1993-03-01T23:59:59.000Z

138

Geothermal development of the Madison group aquifer: a case study  

SciTech Connect

A geothermal well has been drilled at the St. Mary's Hospital in Pierre, South Dakota. The well is 2176 feet deep and artesian flows 375 gpm at 106/sup 0/F. The well is producing fluids from the Mississippian Madison Group, a sequence of carbonate rocks deposited over several western states. The project was funded to demonstrate the goethermal potential of this widespread aquifer. This case study describes the development of the project through geology, drilling, stimulation, and testing.

Martinez, J.A.

1981-01-01T23:59:59.000Z

139

Project Title  

NLE Websites -- All DOE Office Websites (Extended Search)

SUMNER COUNTY, KANSAS DE-FE0006821 W. Lynn Watney, Jason Rush, Joint PIs Kansas Geological Survey The University of Kansas Lawrence, KS U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Developing the Technologies and Infrastructure for CCS August 20-22, 2013 Brighton 1&2 Wednesday 8-21-13 1:10-1:35 2 Presentation Outline * Benefit to the Program * Project Overview * Technical Status * Accomplishments to Date * Summary 2 Small Scale Field Test Wellington Field Regional Assessment of deep saline Arbuckle aquifer Project Team DOE-NETL Contract #FE0006821 KANSAS STATE UNIVERSITY 3 L. Watney (Joint PI), J. Rush (Joint PI), J. Doveton, E. Holubnyak, M. Fazelalavi, R. Miller, D. Newell, J. Raney

140

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE0006821 FE0006821 Univ. of Kansas Center for Research FE DE-FE0006821 Sequestration Division 2012 Brian Dressel October 1, 2011 - Sept. 30, 2015 Lawrence, KS Small-Scale Field Test Demonstrating CO2 Sequestration in Arbuckle Saline Aquifer & by EOR Activities covered by this action includes paper studies, literature searches, theoretical studies, modeling, conceptual design, feasibility studies, and permitting. 09 16 2011 Brian W. Dressel Digitally signed by Brian W. Dressel DN: cn=Brian W. Dressel, o=DOE-NETL, ou=Sequestration, email=Brian.Dressel@NETL.DOE.GOV, c=US Date: 2011.09.16 08:50:21 -04'00' 09 20 2011 Cliff Whyte Digitally signed by Cliff Whyte DN: cn=Cliff Whyte, o=US Dept of Energy, ou=NETL- OPFC, email=Cliff.Whyte@netl.doe.gov, c=US Date: 2011.09.20 10:25:04 -04'00'

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DE-FE0006821 DE-FE0006821 Univ. of Kansas Center for Research FE Abengoa Bioenergy Corporation SCC/Sequestration Division 2012-2015 Brian Dressel Colwich, Kansas Small Scale Field Test Demonstrating CO2 Sequestration in the Arbuckle Saline Aquifer & by CO2-EOR... Install and operate a skid mounted capture system at an ethanol plant and transport liquid CO2 to injection site at Wellington Field (Sumner County, Kansas). Brian W. Dressel Digitally signed by Brian W. Dressel DN: cn=Brian W. Dressel, o=DOE-NETL, ou=Sequestration, email=Brian.Dressel@NETL.DOE.GOV, c=US Date: 2012.04.20 10:41:32 -04'00' 04 20 2012 Cliff Whyte Digitally signed by Cliff Whyte DN: cn=Cliff Whyte, o=US Dept of Energy, ou=NETL- OPFC, email=Cliff.Whyte@netl.doe.gov, c=US Date: 2012.06.04 08:50:26 -04'00'

142

FE Categorical Exclusions | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

September 21, 2011 September 21, 2011 CX-007019: Categorical Exclusion Determination Diagnosis of Multiple Fracture Stimulation in Horizontal Wells by Downhole Temperature Measurement - Phase 1 CX(s) Applied: A9 Date: 09/21/2011 Location(s): College Station, Texas Office(s): Fossil Energy, National Energy Technology Laboratory September 20, 2011 CX-007045: Categorical Exclusion Determination Small-Scale Field Test Demonstrating Carbon Dioxide Sequestration in Arbuckle Saline Aquifer CX(s) Applied: A1, A9 Date: 09/20/2011 Location(s): Lawrence, Kansas Office(s): Fossil Energy, National Energy Technology Laboratory September 20, 2011 CX-007031: Categorical Exclusion Determination Chemistry of Cathode Surfaces: Fundamental Investigation and Tailoring of Electronic Behavior CX(s) Applied: B3.6

143

Project Title  

NLE Websites -- All DOE Office Websites (Extended Search)

SUMNER SUMNER COUNTY, KANSAS Project Number DE-FE0006821 W. Lynn Watney Kansas Geological Survey Lawrence, KS U.S. Department of Energy National Energy Technology Laboratory Carbon Storage R&D Project Review Meeting Developing the Technologies and Building the Infrastructure for CO 2 Storage August 21-23, 2012 Fountainview Wednesday 8-21-12 1:10-1:35 2 Presentation Outline * Benefits to the Program * Project Overview * Technical Status * Accomplishments to Date * Summary Small Scale Field Test Wellington Field Regional Assessment of deep saline Arbuckle aquifer Acknowledgements & Disclaimer Acknowledgements * The work supported by the U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) under Grant DE-FE0002056 and DE- FE0006821, W.L. Watney and Jason Rush, Joint PIs. Project is managed and

144

Relationship of regional water quality to aquifer thermal energy storage  

DOE Green Energy (OSTI)

Ground-water quality and associated geologic characteristics may affect the feasibility of aquifer thermal energy storage (ATES) system development in any hydrologic region. This study sought to determine the relationship between ground-water quality parameters and the regional potential for ATES system development. Information was collected from available literature to identify chemical and physical mechanisms that could adversely affect an ATES system. Appropriate beneficiation techniques to counter these potential geochemical and lithologic problems were also identified through the literature search. Regional hydrology summaries and other sources were used in reviewing aquifers of 19 drainage regions in the US to determine generic geochemical characteristics for analysis. Numerical modeling techniques were used to perform geochemical analyses of water quality from 67 selected aquifers. Candidate water resources regions were then identified for exploration and development of ATES. This study identified six principal mechanisms by which ATES reservoir permeability may be impaired: (1) particulate plugging, (2) chemical precipitation, (3) liquid-solid reactions, (4) formation disaggregation, (5) oxidation reactions, and (6) biological activity. Specific proven countermeasures to reduce or eliminate these effects were found. Of the hydrologic regions reviewed, 10 were identified as having the characteristics necessary for ATES development: (1) Mid-Atlantic, (2) South-Atlantic Gulf, (3) Ohio, (4) Upper Mississippi, (5) Lower Mississippi, (6) Souris-Red-Rainy, (7) Missouri Basin, (8) Arkansas-White-Red, (9) Texas-Gulf, and (10) California.

Allen, R.D.

1983-11-01T23:59:59.000Z

145

Optimizing the design and operation of aquifer thermal energy systems  

DOE Green Energy (OSTI)

The design of Aquifer Thermal Energy Storage (ATES) systems is complicated by significant uncertainties in ones ability to reliably predict the response of the aquifer to fluid and thermal fluxes. Overdesigning the system, to compensate for these uncertainties, reduces the potential economic and energy benefits of an ATES system. Underdesigning the system results in systems that fail to meet design targets. Unfortunately, standard aquifer characterization methods and hydrologic models do not provide adequate information to overcome these uncertainties. Thus, expensive full-scale tests are generally recommended to develop an adequate-understanding of the systems response. However, the standard engineering {open_quotes}design-build-operate{close_quotes} process is not. appropriate for ATES systems because an optimal design cannot be completed without some operational experience, i.e., field tests. A more adaptive engineering process is required. This engineering process should be flexible enough to allow the design to be adjusted during the operation, as monitoring data become available and as an understanding of the system response increases. Engineering approaches being developed for environmental restoration of contaminated soil and groundwater can be adapted to optimally design and operate ATES systems.

Vail, L.W.; Jenne, E.A.

1994-11-01T23:59:59.000Z

146

A Conceptual Model of the Surface Salinity Distribution in the Oceanic Hadley Cell  

Science Conference Proceedings (OSTI)

A conceptual model of the salinity distribution in the oceanic Hadley cell is presented. The model pertains to the region of tropical easterly surface winds, where the surface salinity increases poleward from a local salinity minimum near the ...

Johan Nilsson; Heiner Krnich

2008-12-01T23:59:59.000Z

147

40 Years Of Dogger Aquifer Management In Ile-De-France, Paris...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Journal Article: 40 Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France edit Details Activities (0) Areas (0)...

148

THEORETICAL STUDIES IN LONG-TERM THERMAL ENERGY STORAGE IN AQUIFERS  

E-Print Network (OSTI)

Aquifer Storage of Hot Water from Solar Energy Collectors.of International Solar Energy Congress, New Delhi, India.Thermal Storage of Solar Energy 11 , Amsterdam, The

Tsang, C.F.

2013-01-01T23:59:59.000Z

149

Carbon Dioxide Enhanced Oil Recovery and Sequestration Projects --Wellington Field,  

E-Print Network (OSTI)

and seismic contractors TBN Dawson-Markwell Exploration Co. #12;20 MM bbls oil produced ~40 MM bbls oil and deeply buried Arbuckle Aquifer ­ Overlying Mississippian carbonates contain large oil and gas reservoirs freshwater aquifers, and very limited oil and gas production. ­ Published estimates of CO2 sequestration

Peterson, Blake R.

150

USD 307 Ell-Saline Wind Project | Open Energy Information  

Open Energy Info (EERE)

Ell-Saline Wind Project Ell-Saline Wind Project Jump to: navigation, search Name USD 307 Ell-Saline Wind Project Facility USD 307 Ell-Saline Sector Wind energy Facility Type Community Wind Location KS Coordinates 38.77187°, -97.861519° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.77187,"lon":-97.861519,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

151

Optimal Surface Salinity Perturbations Influencing the Thermohaline Circulation  

Science Conference Proceedings (OSTI)

Optimal surface salinity perturbations influencing the meridional overturning circulation maximum are exhibited and interpreted on a stable steady state of a 2D latitudedepth ocean thermohaline circulation model. Despite the stability of the ...

Florian Svellec; Mahdi Ben Jelloul; Thierry Huck

2007-12-01T23:59:59.000Z

152

Thermal Mass Correction for the Evaluation of Salinity  

Science Conference Proceedings (OSTI)

This paper revisits the thermal mass inertia correction of Sea-Bird Electronics, Inc., (SBE4) conductivity probes for the calculation of salinity. In particular, it is shown that the standard parameters recommended for the correction method are ...

Vigan Mensah; Marc Le Menn; Yves Morel

2009-03-01T23:59:59.000Z

153

Temperature and Salinity Variability in Heterogeneous Oceanic Convection  

Science Conference Proceedings (OSTI)

In regions of active oceanic convection, such as the Labrador Sea, small- and mesoscale spatial variability is observed in the temperature and salinity fields (T and S). Often T and S structures are density-compensated, with the density ...

Sonya Legg; James C. McWilliams

2000-06-01T23:59:59.000Z

154

Estimating Salinity Variance Dissipation Rate from Conductivity Microstructure Measurements  

Science Conference Proceedings (OSTI)

At the smallest length scales, conductivity measurements include a contribution from salinity fluctuations in the inertialconvective and viscousdiffusive ranges of the turbulent scalar variance spectrum. Interpreting these measurements is ...

Jonathan D. Nash; James N. Moum

1999-02-01T23:59:59.000Z

155

Aquifer thermal energy storage costs with a seasonal heat source.  

SciTech Connect

The cost of energy supplied by an aquifer thermal energy storage (ATES) system from a seasonal heat source was investigated. This investigation considers only the storage of energy from a seasonal heat source. Cost estimates are based upon the assumption that all of the energy is stored in the aquifer before delivery to the end user. Costs were estimated for point demand, residential development, and multidistrict city ATES systems using the computer code AQUASTOR which was developed specifically for the economic analysis of ATES systems. In this analysis the cost effect of varying a wide range of technical and economic parameters was examined. Those parameters exhibiting a substantial influence on ATES costs were: cost of purchased thermal energy; cost of capital; source temperature; system size; transmission distance; and aquifer efficiency. ATES-delivered energy costs are compared with the costs of hot water heated by using electric power or fuel-oils. ATES costs are shown as a function of purchased thermal energy. Both the potentially low delivered energy costs available from an ATES system and its strong cost dependence on the cost of purchased thermal energy are shown. Cost components for point demand and multi-district city ATES systems are shown. Capital and thermal energy costs dominate. Capital costs, as a percentage of total costs, increase for the multi-district city due to the addition of a large distribution system. The proportion of total cost attributable to thermal energy would change dramatically if the cost of purchased thermal energy were varied. It is concluded that ATES-delivered energy can be cost competitive with conventional energy sources under a number of economic and technical conditions. This investigation reports the cost of ATES under a wide range of assumptions concerning parameters important to ATES economics. (LCL)

Reilly, R.W.; Brown, D.R.; Huber, H.D.

1981-12-01T23:59:59.000Z

156

Fundamental quantitative analysis of microbial activity in aquifer bioreclamation  

SciTech Connect

In situ bioremediation of hazardous organic chemicals that contaminate aquifer solids and ground water is a highly promising technique for many sites at DOE facilities. Its potential stems from having agents for destruction of the contaminants (bacteria) close to the separate-phase liquid or sorbed contaminants. This project was designed to advance knowledge in several of the microbiological fundamentals most important to in situ bioremediation: biodegradation of poorly soluable organic contaminants; dual limitation kinetics of electron donors and acceptors; kinetics of sequential degradation involving oxygenase reaction; biologically induced clogging in porous media, and two dimensional modeling of biofilm reactions in non homogeneous porous media.

Rittman, B.E.; Valocchi, A.J. [Univ. of Illinois, Urbana, IL (United States). Dept. of Civil Engineering; Baveye, P. [Cornell Univ., Ithaca, NY (United States). Dept. of Agronomy

1993-08-01T23:59:59.000Z

157

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material  

E-Print Network (OSTI)

on CT transformations in Hanford soil. This work assessed the potential for in situ CT biotransColumn Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material a column reactor system containing Hanford Aquifer material in order to assess the potential of in situ

Semprini, Lewis

158

Aquifer Vulnerability Assessment to Petroleum Contaminants Based on Fuzzy Variable Set Theory and Geographic Information System  

Science Conference Proceedings (OSTI)

It is a common environmental and hydro-geological problem that groundwater system is contaminated by petroleum hydrocarbons. An important step of pollution control and treatment is aquifer vulnerability assessment. In this paper, a karst fissure groundwater ... Keywords: fuzzy variable set, GIS, aquifer, petroleum contamination, vulnerability, assessment

Li Qingguo; Ma Zhenmin; Fang Yunzhi; Chen Shouyu

2009-07-01T23:59:59.000Z

159

Vulnerability assessment of groundwater resources: A modelling-based approach to the Mancha Occidental aquifer, Spain  

Science Conference Proceedings (OSTI)

The semiarid Mancha Occidental aquifer represents a paradigmatic case of intensive groundwater use for agriculture. Irrigation has proven a catalyst for welfare in the area over the last three decades, if at a significant environmental cost and while ... Keywords: Aquifer, Groundwater, Mancha Occidental, Participatory modelling, Vulnerability, Water Framework Directive

Pedro Martnez-Santos; M. Ramn Llamas; Pedro E. Martnez-Alfaro

2008-09-01T23:59:59.000Z

160

Regional assessment of aquifers for thermal-energy storage. Volume 2. Regions 7 through 12  

DOE Green Energy (OSTI)

This volume contains information on the geologic and hydrologic framework, major aquifers, aquifers which are suitable and unsuitable for annual thermal energy storage (ATES) and the ATES potential of the following regions of the US: Unglaciated Central Region; Glaciated Appalachians, Unglaciated Appalachians; Coastal Plain; Hawaii; and Alaska. (LCL)

Not Available

1981-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Regional assessment of aquifers for thermal energy storage. Volume 1. Regions 1 through 6  

DOE Green Energy (OSTI)

This volume contains information on the geologic and hydrologic framework, major aquifers, aquifers which are suitable and unsuitable for annual thermal energy storage (ATES) and the ATES potential of the following regions of the US: the Western Mountains; Alluvial Basins; Columbia LAVA Plateau; Colorado Plateau; High Plains; and Glaciated Central Region. (LCL)

Not Available

1981-06-01T23:59:59.000Z

162

Regional assessment of aquifers for thermal-energy storage. Volume 3. Appendices  

DOE Green Energy (OSTI)

This volume contains two appendices to the main report. The first lists the aquifers in the 12 geographic regions of the USA and characterizes each as containing sands and gravels or limestones or volcanic rock. The second appendix tabulates the hydrologic characteristics of each aquifer. (LCL)

Not Available

1981-06-01T23:59:59.000Z

163

Precision Dual-Aquifer Dewatering at a Low Level Radiological Cleanup in New Jersey  

SciTech Connect

Cleanup of low-level radioactive wastes at the Wayne Interim Storage Site (WISS), Wayne, New Jersey during the period October, 2000 through November, 2001 required the design, installation and operation of a dual-aquifer dewatering system to support excavation of contaminated soils. Waste disposal pits from a former rare-earth processing facility at the WISS had been in contact with the water table aquifer, resulting in moderate levels of radionuclides being present in the upper aquifer groundwater. An uncontaminated artesian aquifer underlies the water table aquifer, and is a localized drinking water supply source. The lower aquifer, confined by a silty clay unit, is flowing artesian and exhibits potentiometric heads of up to 4.5 meters above grade. This high potentiometric head presented a strong possibility that unloading due to excavation would result in a ''blowout'', particularly in areas where the confining unit was < 1 meter thick. Excavation of contaminated materials w as required down to the surface of the confining unit, potentially resulting in an artesian aquifer head of greater than 8 meters above the excavation surface. Consequently, it was determined that a dual-aquifer dewatering system would be required to permit excavation of contaminated material, with the water table aquifer dewatered to facilitate excavation, and the deep aquifer depressurized to prevent a ''blowout''. An additional concern was the potential for vertical migration of contamination present in the water table aquifer that could result from a vertical gradient reversal caused by excessive pumping in the confined system. With these considerations in mind, a conceptual dewatering plan was developed with three major goals: (1) dewater the water table aquifer to control radionuclide migration and allow excavation to proceed; (2) depressurize the lower, artesian aquifer to reduce the potential for a ''blowout''; and (3) develop a precise dewatering level control mechanism to insure a vertical gradient reversal did not result in cross-contamination. The plan was executed through a hydrogeologic investigation culminating with the design and implementation of a complex, multi-phased dual-aquifer dewatering system equipped with a state of the art monitoring network.

Gosnell, A. S.; Langman, J. W. Jr.; Zahl, H. A.; Miller, D. M.

2002-02-27T23:59:59.000Z

164

Ground-Water Table and Chemical Changes in an Alluvial Aquifer During  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ground-Water Table and Chemical Changes in an Alluvial Aquifer Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells More Documents & Publications Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

165

Ground-Water Table and Chemical Changes in an Alluvial Aquifer During  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ground-Water Table and Chemical Changes in an Alluvial Aquifer Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells Ground-Water Table and Chemical Changes in an Alluvial Aquifer During Sustained Pumping at the Monticello, Utah, Zero-Valent Iron Treatment Cells More Documents & Publications Performance Assessment and Recommendations for Rejuvenation of a Permeable Reactive Barrier: Cotter Corporation's Cañon City, Colorado, Uranium

166

Analysis of Cameron Parish geopressured aquifer. Final report  

DOE Green Energy (OSTI)

The Sweet Lake geopressured-geothermal prospect is located in northern Cameron Parish, Louisiana in T.12 S., R. 7 W. and T. 12 S., R. 8 W. approximately 10 to 15 miles south of Lake Charles. The region is characterized by Cenozoic sand and clay deposits of geosynclinal thickness and differentially uplifted salt structures. The primary geopressured-geothermal aquifer is the Miogyp sand of the Camerina zone (Upper Frio formation of Oligocene-Miocene age). The main prospect is located in a basin on the north flank of the Hackberry-Big Lake-Sweet Lake salt ridge. Interpretation of 27 miles of seismic lines and 17 deep well logs localizes the prospect in a basin with northwesterly dip in a graben between east--west faults converging eastward. Aquifer depth ranges from 14,000 to 18,000 feet. Net sand thickness exceeds 400 feet with 22% porosity. Temperatures range from 280/sup 0/F. (corrected) at 14,000 feet to 350/sup 0/F. at 18,000 feet. Geopressures occur below 9,000 feet with mud weight equivalents in the sand from 12 to 13 pounds per gallon. Net sand volume of one cubic mile is estimated in the area mapped.

Durham, C.O. Jr.

1978-09-01T23:59:59.000Z

167

The Role of Averaging for Improving Sea Surface Salinity Retrieval from the Soil Moisture and Ocean Salinity (SMOS) Satellite and Impact of Auxiliary Data  

Science Conference Proceedings (OSTI)

Soil Moisture and Ocean Salinity (SMOS) was chosen as the European Space Agencys second Earth Explorer Opportunity mission. One of the objectives is to retrieve sea surface salinity (SSS) from measured brightness temperatures (TBs) at L band ...

Sabine Philipps; Christine Boone; Estelle Obligis

2007-02-01T23:59:59.000Z

168

Optimal Geological Enviornments for Carbon Dioxide Storage in Saline Formations  

NLE Websites -- All DOE Office Websites (Extended Search)

susan D. Hovorka susan D. Hovorka Principal Investigator University of Texas at Austin Bureau of Economic Geology 10100 Burnet Road, Bldg. 130 P.O. Box X Austin, TX 78713 512-471-4863 susan.hovorka@beg.utexas.edu Optimal GeOlOGical envirOnments fOr carbOn DiOxiDe stOraGe in saline fOrmatiOns Background For carbon dioxide (CO 2 ) sequestration to be a successful component of the United States emissions reduction strategy, there will have to be a favorable intersection of a number of factors, such as the electricity market, fuel source, power plant design and operation, capture technology, a suitable geologic sequestration site, and a pipeline right-of-way from the plant to the injection site. The concept of CO 2 sequestration in saline water-bearing formations (saline reservoirs), isolated at

169

one mile underground into a deep saline formation. The injection  

NLE Websites -- All DOE Office Websites (Extended Search)

mile underground into a deep saline formation. The injection, mile underground into a deep saline formation. The injection, which will occur over a three-year period and is slated to start in early 2010, will compress up to 1 million metric tonnes of CO 2 from the ADM ethanol facility into a liquid-like, dense phase. The targeted rock formation, the Mt. Simon Sandstone, is the thickest and most widespread saline reservoir in the Illinois Basin, with an estimated CO 2 storage capacity of 27 to 109 billion metric tonnes. A comprehensive monitoring program, which will be evaluated yearly, will be implemented after the injection to ensure the injected CO 2 is stored safely and permanently. The RCSP Program was launched by the Office of Fossil Energy (FE)

170

into deeper and larger-volume saline formations. Researchers at  

NLE Websites -- All DOE Office Websites (Extended Search)

into deeper and larger-volume saline formations. Researchers at into deeper and larger-volume saline formations. Researchers at Cranfield have been monitoring the injected CO 2 with instrumentation installed nearly two miles beneath the surface to ensure the safe and permanent storage in the Lower Tuscaloosa Formations. The Cranfield project also has been successful in the deployment of pressure-response monitoring techniques in the injection zone ("in-zone") and above the injection zone ("above zone"). Real-time data collected since July 2008

171

The University of Minnesota aquifer thermal energy storage (ATES) field test facility -- system description, aquifer characterization, and results of short-term test cycles  

DOE Green Energy (OSTI)

Phase 1 of the Aquifer Thermal Energy Storage (ATES) Project at the University of Minnesota was to test the feasibility, and model, the ATES concept at temperatures above 100{degrees}C using a confined aquifer for the storage and recovery of hot water. Phase 1 included design, construction, and operation of a 5-MW thermal input/output field test facility (FTF) for four short-term ATES cycles (8 days each of heat injection, storage, and heat recover). Phase 1 was conducted from May 1980 to December 1983. This report describes the FTF, the Franconia-Ironton-Galesville (FIG) aquifer used for the test, and the four short-term ATES cycles. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic effects are all included. The FTF consists of monitoring wells and the source and storage well doublet completed in the FIG aquifer with heat exchangers and a fixed-bed precipitator between the wells of the doublet. The FIG aquifer is highly layered and a really anisotropic. The upper Franconia and Ironton-Galesville parts of the aquifer, those parts screened, have hydraulic conductivities of {approximately}0.6 and {approximately}1.0 m/d, respectively. Primary ions in the ambient ground water are calcium and magnesium bicarbonate. Ambient temperature FIG ground water is saturated with respect to calcium/magnesium bicarbonate. Heating the ground water caused most of the dissolved calcium to precipitate out as calcium carbonate in the heat exchanger and precipitator. Silica, calcium, and magnesium were significantly higher in recovered water than in injected water, suggesting dissolution of some constituents of the aquifer during the cycles. Further work on the ground water chemistry is required to understand water-rock interactions.

Walton, M.; Hoyer, M.C.; Eisenreich, S.J.; Holm, N.L.; Holm, T.R.; Kanivetsky, R.; Jirsa, M.A.; Lee, H.C.; Lauer, J.L.; Miller, R.T.; Norton, J.L.; Runke, H. (Minnesota Geological Survey, St. Paul, MN (United States))

1991-06-01T23:59:59.000Z

172

Assessing the impacts of future demand for saline groundwater on commercial deployment of CCS in the United States  

SciTech Connect

This paper provides a preliminary assessment of the potential impact that future demand for groundwater might have on the commercial deployment of carbon dioxide capture and storage (CCS) technologies within the United States. A number of regions within the U.S. have populations, agriculture and industries that are particularly dependent upon groundwater. Moreover, some key freshwater aquifers are already over-utilized or depleted, and others are likely to be moving toward depletion as demand grows. The need to meet future water demands may lead some parts of the nation to consider supplementing existing supplies with lower quality groundwater resources, including brackish waters that are currently not considered sources of drinking water but which could provide supplemental water via desalination. In some areas, these same deep saline-filled geologic formations also represent possible candidate carbon dioxide (CO2) storage reservoirs. The analysis presented here suggests that future constraints on CCS deployment due to potential needs to supplement conventional water supplies by desalinating deeper and more brackish waters are likely to be necessary only in limited regions across the country, particularly in areas that are already experiencing water stress.

Davidson, Casie L.; Dooley, James J.; Dahowski, Robert T.

2009-04-20T23:59:59.000Z

173

Investigation of groundwater recirculation for the removal of RDX from the Pantex Plant perched aquifer  

SciTech Connect

The Pantex Plant near Amarillo, Texas, is a US Department of Energy (DOE) facility that has been in operation since 1942. Past and present operations at Pantex include the creation of chemical high explosives components for nuclear weapons and assembly and disassembly of nuclear weapons. The Pantex Plant is underlain by the Ogallala aquifer, which in this area, consists of the main water-bearing unit and a perched water zone. These are separated by a fine-grained zone of low permeability. Multiple contaminant plumes containing high explosive (HE) compounds have been detected in the perched aquifer beneath the plant. The occurrence of these contaminants is the result of past waste disposal practices at the facility. RDX is an HE compound, which has been detected in the groundwater of the perched aquifer at significant concentrations. A pilot-scale, dual-phase extraction treatment system has been installed at one location at the plant, east of Zone 12, to test the effectiveness of such a system on the removal of these contaminants from the subsurface. A tracer test using a conservative tracer, bromide (Br), was conducted at the treatment site in 1996. In addition to the bromide, RDX and water elevations in the aquifer were monitored. Using data from the tracer test and other relevant data from the investigations at Pantex, flow and contaminant transport in the perched aquifer were simulated with groundwater models. The flow was modeled using MODFLOW and the transport of contaminants in the aqueous phase was modeled using MT3D. Modeling the perched aquifer had been conducted to characterize the flow in the perched aquifer; estimate RDX retardation in the perched aquifer; and evaluate the use of groundwater re-circulation to enhance the extraction of RDX from the perched aquifer.

Woods, A.L. [ed.; Barnes, D.L. [Amarillo National Resource Center for Plutonium, TX (United States); Boles, K.M.; Charbeneau, R.J. [Univ. of Texas, Austin, TX (United States); Black, S.; Rainwater, K. [Texas Tech Univ., Lubbock, TX (United States). Water Resources Center

1998-07-01T23:59:59.000Z

174

Cost analysis of power plant cooling using aquifer thermal energy storage  

DOE Green Energy (OSTI)

Most utilities in the US experience their peak demand for electric power during periods with high ambient temperature. Unfortunately, the performance of many power plants decreases with high ambient temperature. The use of aquifer thermal energy storage (ATES) for seasonal storage of chill can be an alternative method for heat rejection. Cold water produced during the previous winter is stored in the aquifer and can be used to provide augmented cooling during peak demand periods increasing the output of many Rankine cycle power plants. This report documents an investigation of the technical and economic feasibility of using aquifer thermal energy storage for peak cooling of power plants. 9 refs., 15 figs., 5 tabs.

Zimmerman, P.W.; Drost, M.K.

1989-05-01T23:59:59.000Z

175

In Situ Biological Uranium Remediation within a Highly Contaminated Aquifer  

NLE Websites -- All DOE Office Websites (Extended Search)

In Situ Biological Uranium Remediation In Situ Biological Uranium Remediation within a Highly Contaminated Aquifer Matthew Ginder-Vogel1, Wei-Min Wu1, Jack Carley2, Phillip Jardine2, Scott Fendorf1 and Craig Criddle1 1Stanford University, Stanford, CA 2Oak Ridge National Laboratory, Oak Ridge, TN Microbial Respiration Figure 1. Uranium(VI) reduction is driven by microbial respiration resulting in the precipitation of uraninite. Uranium contamination of ground and surface waters has been detected at numerous sites throughout the world, including agricultural evaporation ponds (1), U.S. Department of Energy nuclear weapons manufacturing areas, and mine tailings sites (2). In oxygen-containing groundwater, uranium is generally found in the hexavalent oxidation state (3,4), which is a relatively soluble chemical form. As U(VI) is transported through

176

Review of simulation techniques for aquifer thermal energy storage (ATES)  

DOE Green Energy (OSTI)

The storage of thermal energy in aquifers has recently received considerable attention as a means to conserve and more efficiently use energy supplies. The analysis of aquifer thermal energy storage (ATES) systems will rely on the results from mathematical and geochemical models. Therefore, the state-of-the-art models relevant to ATES was reviewed and evaluated. These models describe important processes active in ATES including ground-water flow, heat transport (heat flow), solute transport (movement of contaminants), and geochemical reactions. In general, available models of the saturated ground-water environment are adequate to address most concerns associated with ATES; that is, design, operation, and environmental assessment. In those cases where models are not adequate, development should be preceded by efforts to identify significant physical phenomena and relate model parameters to measurable quantities. Model development can then proceed with the expectation of an adequate data base existing for the model's eventual use. Review of model applications to ATES shows that the major emphasis has been on generic sensitivity analysis and site characterization. Assuming that models are applied appropriately, the primary limitation on model calculations is the data base used to construct the model. Numerical transport models are limited by the uncertainty of subsurface data and the lack of long-term historical data for calibration. Geochemical models are limited by the lack of thermodynamic data for the temperature ranges applicable to ATES. Model applications undertaken with data collection activities on ATES sites should provide the most important contributions to the understanding and utilization of ATES. Therefore, the primary conclusion of this review is that model application to field sites in conjunction with data collection activities is essential to the development of this technology.

Mercer, J.W.; Faust, C.R.; Miller, W.J.; Pearson, F.J. Jr.

1981-03-01T23:59:59.000Z

177

Moored Salinity Time Series Measurements at 0, 140W  

Science Conference Proceedings (OSTI)

This study describes moored salinity time series measurements in a biologically productive equatorial upwelling regime in the Pacific Ocean (0, 140W). Data were collected at 26 m and at 100 m for 13 months during 19871988 using four SEACAT ...

Michael J. McPhaden; H. Paul Freitag; Andrew J. Shepherd

1990-08-01T23:59:59.000Z

178

The Next-Generation Massively Parallel Reactive Flow and Transport Code PFLOTRAN: Application to CO2 Storage in Saline Aquifers P. Lichtner  

E-Print Network (OSTI)

-oriented style in Fortran 90 and uses modern constructs such as derived types, pointers, and linked lists. Recently, PFLOTRAN has been run on a one billion node real-world problem (Hanford 300 Area) as proof

Mills, Richard

179

Research into the Characterization of Brackish Water and Disposal of Desalination Reject Water in Saline Aquifers and Depleted Oil and Gas Reservoirs  

E-Print Network (OSTI)

Brackish groundwater is a valuable drought-proof resource that is plentiful in much of Texas. If treated by available desalination technologies, brackish groundwater resources could help many regions of Texas cope with pressing water shortages. If put to non-potable uses such as waterflooding, streamflow augmentation, and landscape irrigation, brackish groundwater could free up substantial amounts of drinking water supplies now dedicated to these uses. In 2007, the Texas Legislature passed landmark legislation that should provide greatly expanded opportunities to beneficially use concentrates from the desalination of brackish groundwater or to streamline the disposal as a waste product. House Bill 2654 (passed in the 80th Legislative session) has the promise of making it substantially easier to manage concentrates that result from the desalination of brackish groundwater. The bill authorizes the Texas Commission on Environmental Quality to issue a general statewide permit that allows disposal of nonhazardous brine from desalination operations into Class I injection wells. The bill also streamlines the process of using the concentrates in Class II injection wells for enhanced oil and gas recovery operations. However, more still needs to be done in two key areas: * Learning more about the chemical traits of brackish groundwater in specific circumstances to ensure that concentrates from desalting these resources are not a hazardous waste, * Continuing to develop and implement technologies and management strategies that make these programs most cost-efficient.

Jensen, R.

2008-01-01T23:59:59.000Z

180

Important Parameters to CO2 Flow Predictions in A Deep Saline Aquifer: A Sensitivity Analysis Based on the Design of Experiment  

E-Print Network (OSTI)

(i.e., variance of natural log permeability, VAR), (4) gas phase relative permeability hysteresis (i the outcome is the mobile gas predicted at the end of the injection. Three statistically important factors , , q, krock become additionally important during monitoring; to predict the dissolved gas, SAL and VAR

Zhang, Ye

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

40 Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France  

Open Energy Info (EERE)

Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 40 Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France Details Activities (0) Areas (0) Regions (0) Abstract: Geothermal energy has been supplying heat to district networks in the Paris Basin for more than 40 years. The most serious difficulties have been corrosion and scaling related problems that occurred in many geothermal loops in the mid-1980s. The main target of all exploration and exploitation projects has been the Dogger aquifer. Most of the operating facilities use the "doublet" technology which consists of a closed loop with one production well and one injection well. Injection of the cooled

182

The hydrogeochemistry of pond and rice field recharge : implications for the arsenic contaminated aquifers in Bangladesh  

E-Print Network (OSTI)

The shallow aquifers in Bangladesh, which provide drinking water for millions and irrigation water for innumerable rice fields, are severely contaminated with geogenic arsenic. Water mass balance calculations show that ...

Neumann, Rebecca B

2010-01-01T23:59:59.000Z

183

Molecular analysis of phosphate limitation in Geobacteraceae during the bioremediation of a uranium-contaminated aquifer  

E-Print Network (OSTI)

the Bioremediation of a Uranium-Contaminated Aquifer A.et al. , 1999) as well as uranium (Anderson et al. , 2003;Geobacter species to remove uranium from the groundwater of

N'Guessan, L.A.

2010-01-01T23:59:59.000Z

184

Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer  

E-Print Network (OSTI)

An analytical solution is developed for three-dimensional flow towards a partially penetrating large-diameter well in an unconfined aquifer bounded below by an aquitard of finite or semi-infinite extent. The analytical solution is derived using Laplace and Hankel transforms, then inverted numerically. Existing solutions for flow in leaky unconfined aquifers neglect the unsaturated zone following an assumption of instantaneous drainage assumption due to Neuman [1972]. We extend the theory of leakage in unconfined aquifers by (1) including water flow and storage in the unsaturated zone above the water table, and (2) allowing the finite-diameter pumping well to partially penetrate the aquifer. The investigation of model-predicted results shows that leakage from an underlying aquitard leads to significant departure from the unconfined solution without leakage. The investigation of dimensionless time-drawdown relationships shows that the aquitard drawdown also depends on unsaturated zone properties and the pumping-well wellbore storage effects.

Phoolendra K. Mishra; Velimir V. Vessilinov; Kristopher L. Kuhlman

2011-11-04T23:59:59.000Z

185

Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer  

E-Print Network (OSTI)

An analytical solution is developed for three-dimensional flow towards a partially penetrating large-diameter well in an unconfined aquifer bounded below by an aquitard of finite or semi-infinite extent. The analytical solution is derived using Laplace and Hankel transforms, then inverted numerically. Existing solutions for flow in leaky unconfined aquifers neglect the unsaturated zone following an assumption of instantaneous drainage assumption due to Neuman [1972]. We extend the theory of leakage in unconfined aquifers by (1) including water flow and storage in the unsaturated zone above the water table, and (2) allowing the finite-diameter pumping well to partially penetrate the aquifer. The investigation of model-predicted results shows that leakage from an underlying aquitard leads to significant departure from the unconfined solution without leakage. The investigation of dimensionless time-drawdown relationships shows that the aquitard drawdown also depends on unsaturated zone properties and the pumping...

Mishra, Phoolendra K; Kuhlman, Kristopher L

2011-01-01T23:59:59.000Z

186

Isotopes of helium, hydrogen, and carbon as groundwater tracers in aquifers along the Colorado River  

E-Print Network (OSTI)

2.1. Battle for Colorado River Water. Importance ofthat will be replaced by Colorado River water in Arizona,in Aquifers along the Colorado River A Thesis submitted in

Haber, Samuel Ainsworth

2009-01-01T23:59:59.000Z

187

Environmental assessment of the potential effects of aquifer thermal energy storage systems on microorganisms in groundwater  

DOE Green Energy (OSTI)

The primary objective of this study was to evaluate the potential environmental effects (both adverse and beneficials) of aquifer thermal energy storage (ATES) technology pertaining to microbial communities indigenous to subsurface environments (i.e., aquifers) and the propagation, movement, and potential release of pathogenic microorganisms (specifically, Legionella) within ATES systems. Seasonal storage of thermal energy in aquifers shows great promise to reduce peak demand; reduce electric utility load problems; contribute to establishing favorable economics for district heating and cooling systems; and reduce pollution from extraction, refining, and combustion of fossil fuels. However, concerns that the widespread implementation of this technology may have adverse effects on biological systems indigeneous to aquifers, as well as help to propagate and release pathogenic organisms that enter thee environments need to be resolved. 101 refs., 2 tabs.

Hicks, R.J.; Stewart, D.L.

1988-03-01T23:59:59.000Z

188

On Sea Surface Salinity Skin Effect Induced by Evaporation and Implications for Remote Sensing of Ocean Salinity  

Science Conference Proceedings (OSTI)

The existence of a cool and salty sea surface skin under evaporation was first proposed by Saunders in 1967, but few efforts have since been made to perceive the salt component of the skin layer. With two salinity missions scheduled to launch in ...

Lisan Yu

2010-01-01T23:59:59.000Z

189

Effects of Barometric Fluctuations on Well Water-Level Measurements and Aquifer Test Data  

Science Conference Proceedings (OSTI)

The Pacific Northwest National Laboratory, as part of the Hanford Groundwater Monitoring Project, examines the potential for offsite migration of contamination within underlying aquifer systems. Well water-level elevation measurements from selected wells within these aquifer systems commonly form the basis for delineating groundwater-flow patterns (i.e., flow direction and hydraulic gradient). In addition, the analysis of water-level responses obtained in wells during hydrologic tests provides estimates of hydraulic properties that are important for evaluating groundwater-flow velocity and transport characteristics. Barometric pressure fluctuations, however, can have a discernible impact on well water-level measurements. These barometric effects may lead to erroneous indications of hydraulic head within the aquifer. Total hydraulic head (i.e., sum of the water-table elevation and the atmospheric pressure at the water-table surface) within the aquifer, not well water-level elevation, is the hydrologic parameter for determining groundwater-flow direction and hydraulic gradient conditions. Temporal variations in barometric pressure may also adversely affect well water-level responses obtained during hydrologic tests. If significant, adjustments or removal of these barometric effects from the test-response record may be required for quantitative hydraulic property determination. This report examines the effects of barometric fluctuations on well water-level measurements and evaluates adjustment and removal methods for determining areal aquifer head conditions and aquifer test analysis. Two examples of Hanford Site unconfined aquifer tests are examined that demonstrate barometric response analysis and illustrate the predictive/removal capabilities of various methods for well water-level and aquifer total head values. Good predictive/removal characteristics were demonstrated with best corrective results provided by multiple-regression deconvolution methods.

FA Spane, Jr.

1999-12-16T23:59:59.000Z

190

Time scales of DNAPL migration in sandy aquifers examined via numerical simulation  

Science Conference Proceedings (OSTI)

The time required for dense nonaqueous phase liquid (DNAPL) to cease migrating following release to the subsurface is a valuable component of a site conceptual model. This study uses numerical simulation to investigate the migration of six different DNAPLs in sandy aquifers. The most influential parameters governing migration cessation time are the density and viscosity of the DNAPL and the mean hydraulic conductivity of the aquifer. Releases of between 1 and 40 drums of chlorinated solvent DNAPLs, characterized by relatively high density and low viscosity, require on the order of months to a few years to cease migrating in a heterogeneous medium sand aquifer having an average hydraulic conductivity of 7.4 x 10{sup -3} cm/s. In contrast to this, the release of 20 drums of coal tar {rho}{sub D} = 1061 kg/m{sup 3}, {mu}{sub D} = 0.161 Pa(.)s) requires more than 100 years to cease migrating in the same aquifer. Altering the mean hydraulic conductivity of the aquifer results in a proportional change in cessation times. Parameters that exhibit relatively little influence on migration time scales are the DNAPL-water interfacial tension, release volume, source capillary pressure, mean aquifer porosity, and ambient ground water hydraulic gradient. This study also demonstrates that low-density DNAPLs (e.g., coal tar) give rise to greater amounts of lateral spreading and greater amounts of pooling on capillary barriers than high-density DNAPLs such as trichloroethylene or tetrachloroethylene.

Gerhard, J.I.; Pang, T.; Kueper, B.H. [University of Edinburgh, Edinburgh (United Kingdom). Inst. of Infrastructure & Environmental

2007-03-15T23:59:59.000Z

191

Error Covariance Matrices Characterization in the Ocean Salinity Retrieval Cost Function within the SMOS Mission  

Science Conference Proceedings (OSTI)

The interests of the scientific community working on the Soil Moisture and Ocean Salinity (SMOS) ocean salinity level 2 processor definition are currently focused on improving the performance of the retrieval algorithm, which is based on an ...

M. Talone; C. Gabarr; A. Camps; R. Sabia; J. Gourrion; M. Vall-llossera; J. Font

2011-09-01T23:59:59.000Z

192

Addressing agricultural salinity in the American West : harnessing behavioral diversity to institutional design  

E-Print Network (OSTI)

Salinity accumulation in the Lower Arkansas Basin (LAB) of Colorado threatens environmental quality, the agricultural economy and the potential for efficient reuse of water. Salinity is a threat to "hydraulic sustainability", ...

Kock, Beaudry E. (Beaudry Evan)

2010-01-01T23:59:59.000Z

193

Waterflood and Enhanced Oil Recovery Studies using Saline Water and Dilute Surfactants in Carbonate Reservoirs  

E-Print Network (OSTI)

Water injection has been practiced to displace the hydrocarbons towards adjacent wells and to support the reservoir pressure at or above the bubble point. Recently, waterflooding in sandstone reservoirs, as secondary and tertiary modes, proved to decrease the residual oil saturation. In calcareous rocks, water from various resources (deep formation, seawater, shallow beds, lakes and rivers) is generally injected in different oil fields. The ions interactions between water molecules, salts ions, oil components, and carbonate minerals are still ambiguous. Various substances are usually added before or during water injection to enhance oil recovery such as dilute surfactant. Various methods were used including surface charge (zeta potential), static and dynamic contact angle, core flooding, inductively coupled plasma spectrometry, CAT scan, and geochemical simulation. Limestone and dolomite particles were prepared at different wettability conditions to mimic the actual carbonate reservoirs. In addition to seawater and dilute seawater (50, 20, 10, and 1 vol%), formation brine, shallow aquifer water, deionized water and different crude oil samples were used throughout this study. The crude oil/water/carbonates interactions were also investigated using short and long (50 cm) limestone and dolomite rocks at different wettability and temperature conditions. The aqueous ion interactions were extensively monitored via measuring their concentrations using advanced analytical techniques. The activity of the free ions, complexes, and ion pairs in aqueous solutions were simulated at high temperatures and pressures using OLI electrolyte simulation software. Dilute seawater decreased the residual oil saturation in some of the coreflood tests. Hydration and dehydration processes through decreasing and increasing salinity showed no impact on calcite wettability. Effect of individual ions (Ca, Mg, and Na) and dilute seawater injection on oil recovery was insignificant in compare to the dilute surfactant solutions (0.1 wt%). The reaction mechanisms were confirmed to be adsorption of hydroxide ions, complexes and ion pairs at the interface which subsequently altered the surface potential from positive to negative. Results in this study indicate multistage waterflooding can enhance oil recovery in the field under certain conditions. Mixed streams simulation results suggest unexpected ions interactions (NaCO3-1, HSO4-1, NaSO4-1 and SO4-2) with various activities trends especially at high temperatures.

Alotaibi, Mohammed

2011-12-01T23:59:59.000Z

194

Adaptive Fluid Electrical Conductivity Logging to Determine the Salinity Profiles in Groundwater  

E-Print Network (OSTI)

Adaptive Fluid Electrical Conductivity Logging to Determine the Salinity Profiles in Groundwater(t) Analysis Method · Integrate C(z,t), or FEC profile, over z of logged interval to get salinity mass per unit salinity TMDL requires wetland management of salt loads to the San Joaquin River · Dearth of groundwater

Quinn, Nigel

195

NETL: EPAct Projects: Characterization of Potential Sites for Near Miscible  

NLE Websites -- All DOE Office Websites (Extended Search)

Characterization of Potential Sites for Near Miscible CO2 Applications to Improve Oil Recovery in Arbuckle Reservoirs Characterization of Potential Sites for Near Miscible CO2 Applications to Improve Oil Recovery in Arbuckle Reservoirs 09123-18 Primary Performer University of Kansas Center for Research, Inc. Additional Participants Tertiary Oil Recovery Project, University of Kansas Kansas Geological Survey Carmen Schmitt, Inc. Abstract Arbuckle reservoirs have significant potential in Kansas for Improved Oil Recovery (IOR). The Arbuckle has produced an estimated 2.2 billion barrels of oil representing 35% of the 6.1 billion barrels of oil of total Kansas oil production. Because of the characteristic production history, Arbuckle reservoirs have been viewed as fracture-controlled karstic reservoirs with strong pressure support from either a bottom water or edge water aquifer. A common practice of operation in Arbuckle reservoirs is to drill the well into the top of the zone with relative shallow penetration (under 10 feet) and complete open hole. No waterflooding application has been reported in these reservoirs in the published resources.

196

Hydraulic fracturing with a refractory proppant combined with salinity control  

SciTech Connect

This patent describes a method for controlling fines or sand in an unconsolidated or loosely consolidated formation, or reservoir which method additionally improves heat transfer. It comprises: placing at least one wellbore in the formation; hydraulically fracturing the formation via the wellbore via a fracturing fluid which creates at least one fracture; placing a fused refractory proppant consisting essentially of silicon carbide or silicon nitride into the fracture which proppant gravel packs the fracture while providing for increased heat transfer into the formation; determining the critical salinity rate and the critical fluid flow velocity of the formation or reservoir surrounding the wellbore; injecting a saline solution into the formation or reservoir at a velocity exceeding the critical fluid flow velocity and at a saline concentration sufficient to cause the fines or clay particles to be transferred and fixed deep within the formation or reservoir without plugging the formation, fracture or wellbore; and producing via a thermal oil recovery method a hydrocarbonaceous fluid from the formation or reservoir at a velocity such that the critical flow velocity is not exceeded deep within the formation, fracture or wellbore.

Jennings, A.R. Jr.; Stowe, L.R.

1989-08-01T23:59:59.000Z

197

Potential energy savings from aquifer thermal energy storage  

DOE Green Energy (OSTI)

Pacific Northwest Laboratory researchers developed an aggregate-level model to estimate the short- and long-term potential energy savings from using aquifer thermal storage (ATES) in the United States. The objectives of this effort were to (1) develop a basis from which to recommend whether heat or chill ATES should receive future research focus and (2) determine which market sector (residential, commercial, or industrial) offers the largest potential energy savings from ATES. Information was collected on the proportion of US land area suitable for ATES applications. The economic feasibility of ATES applications was then evaluated. The potential energy savings from ATES applications was calculated. Characteristic energy use in the residential, commercial, and industrial sectors was examined, as was the relationship between waste heat production and consumption by industrial end-users. These analyses provided the basis for two main conclusions: heat ATES applications offer higher potential for energy savings than do chill ATES applications; and the industrial sector can achieve the highest potential energy savings for the large consumption markets. Based on these findings, it is recommended that future ATES research and development efforts be directed toward heat ATES applications in the industrial sector. 11 refs., 6 figs., 9 tabs.

Anderson, M.R.; Weijo, R.O.

1988-07-01T23:59:59.000Z

198

Groundwater Manual for the Electric Utility Industry, Second Edition, Volume 1: Groundwater Laws, Geologic Formations, and Groundwat er Aquifers: Volume 1: Groundwater Laws, Geologic Formations, and Groundwater Aquifers  

Science Conference Proceedings (OSTI)

This comprehensive manual brings together hydrogeologic information on subsurface water resources, the fundamentals of aqueous geochemistry, and details on state and federal groundwater laws and regulations. Designed for utility personnel responsible for power plant construction, management, and operation, this manual discusses groundwater management and aquifer protection.

1991-10-14T23:59:59.000Z

199

Hydrologic characterization of the unconfined aquifer at the General Motors Harrison Division Plant, Tuscaloosa, Alabama  

Science Conference Proceedings (OSTI)

General Motors (GM) is studying the feasibility of aquifer thermal energy storage (ATES) for air conditioning at their Harrison Division plant located in Tuscaloosa, Alabama. Pacific Northwest Laboratory (PNL) has assisted in this effort by conducting field tests to measure the hydraulic properties of the proposed ATES well field, which will be within the unconfined aquifer and adjacent to the GM plant. Results showed that in the vicinity of the test well, transmissivity was 2000 ft{sup 2}/d, effective aquifer thickness was 50 ft, effective porosity was 6.2%, hydraulic gradient was 0.005, and seepage velocity was 3.2 ft/d. A second test series at a newly constructed well was expanded to include measuring specific capacity and investigating the vertical distribution of flow within the aquifer. Specific objectives were to determine the injection capacity of the aquifer and to examine efficiency of the well design. Transmissivity was 2300 to 2600 ft{sup 2}/d, effective aquifer thickness was 58 ft, effective porosity was 6.0 to 8.0%, hydraulic gradient was 0.0047, and seepage velocity was 3.1 to 2.7 ft/d. Injection capacity, based on a step-injection test, was approximately 17 gpm/ft and was independent of flow rate within the experimental range 90 to 338 gpm. Maximum hydraulic conductivity occurred within the uppermost 20 ft of saturated sediments, which consisted of well-sorted sand. Below the sand, sorting was progressively poorer with depth, and hydraulic conductivity decreased smoothly. At the base of the aquifer, hydraulic conductivity was less than 10% of that of the uppermost 20 ft. 7 refs., 10 figs.

Hall, S.H.; Newcomer, D.R.; Luttrell, S.P.

1991-03-01T23:59:59.000Z

200

Water Influx, and Its Effect on Oil Recovery: Part 1. Aquifer Flow, SUPRI TR-103  

SciTech Connect

Natural water encroachment is commonly seen in many oil and gas reservoirs. In fact, overall, there is more water than oil produced from oil reservoirs worldwide. Thus it is clear that an understanding of reservoir/aquifer interaction can be an important aspect of reservoir management to optimize recovery of hydrocarbons. Although the mathematics of these processes are difficult, they are often amenable to analytical solution and diagnosis. Thus this will be the ultimate goal of a series of reports on this subject. This first report deals only with aquifer behavior, so it does not address these important reservoir/aquifer issues. However, it is an important prelude to them, for the insight gained gives important clues on how to address reservoir/aquifer problems. In general when looking at aquifer flow, there are two convenient inner boundary conditions that can be considered; constant pressure or constant flow rate. There are three outer boundary conditions that are convenient to consider; infinite, closed and constant pressure. And there are three geometries that can be solved reasonably easily; linear, radial and spherical. Thus there are a total of eighteen different solutions that can be analyzed.

Brigham, William E.

1999-08-09T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

A method for quick assessment of CO2 storage capacity in closedand semi-closed saline formations  

SciTech Connect

Saline aquifers of high permeability bounded by overlying/underlying seals may be surrounded laterally by low-permeability zones, possibly caused by natural heterogeneity and/or faulting. Carbon dioxide (CO{sub 2}) injection into and storage in such 'closed' systems with impervious seals, or 'semi-closed' systems with nonideal (low-permeability) seals, is different from that in 'open' systems, from which the displaced brine can easily escape laterally. In closed or semi-closed systems, the pressure buildup caused by continuous industrial-scale CO{sub 2} injection may have a limiting effect on CO{sub 2} storage capacity, because geomechanical damage caused by overpressure needs to be avoided. In this research, a simple analytical method was developed for the quick assessment of the CO{sub 2} storage capacity in such closed and semi-closed systems. This quick-assessment method is based on the fact that native brine (of an equivalent volume) displaced by the cumulative injected CO{sub 2} occupies additional pore volume within the storage formation and the seals, provided by pore and brine compressibility in response to pressure buildup. With nonideal seals, brine may also leak through the seals into overlying/underlying formations. The quick-assessment method calculates these brine displacement contributions in response to an estimated average pressure buildup in the storage reservoir. The CO{sub 2} storage capacity and the transient domain-averaged pressure buildup estimated through the quick-assessment method were compared with the 'true' values obtained using detailed numerical simulations of CO{sub 2} and brine transport in a two-dimensional radial system. The good agreement indicates that the proposed method can produce reasonable approximations for storage-formation-seal systems of various geometric and hydrogeological properties.

Zhou, Q.; Birkholzer, J.; Tsang, C.F.; Rutqvist, J.

2008-02-10T23:59:59.000Z

202

Sleuthing the Fate of Water in Ancient Aquifers and Ice Cores | U.S. DOE  

Office of Science (SC) Website

Sleuthing the Fate of Water in Ancient Aquifers and Ice Cores Sleuthing the Fate of Water in Ancient Aquifers and Ice Cores Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » October 2012 Sleuthing the Fate of Water in Ancient Aquifers and Ice Cores Precision analytical techniques developed for fundamental experiments in nuclear physics now enable routine measurements of ultra-low concentrations of Krypton radioisotopes in samples of water, ice, and gas. Print Text Size: A A A Subscribe FeedbackShare Page

203

Comparative reflections on the use of modelling tools in conflictive water management settings: The Mancha Occidental aquifer, Spain  

Science Conference Proceedings (OSTI)

Participatory methods provide an increasingly accepted path to integrated assessment. This paper reflects on the role of two participatory modelling initiatives implemented in a highly conflictive setting: the Mancha Occidental aquifer, Spain. The methodologies ... Keywords: Aquifer, Bayesian belief networks, Groundwater modelling, Integrated assessment, Mancha Occidental, Participatory modelling

P. Martnez-Santos; H. J. Henriksen; P. Zorrilla; P. E. Martnez-Alfaro

2010-11-01T23:59:59.000Z

204

Lithology identification of aquifers from geophysical well logs and fuzzy logic analysis: Shui-Lin Area, Taiwan  

Science Conference Proceedings (OSTI)

The purpose of this study is to construct a fuzzy lithology system from well logs to identify formation lithology of a groundwater aquifer system in order to better apply conventional well logging interpretation in hydro-geologic studies because well ... Keywords: Aquifer characterization, Artificial intelligence, Groundwater, Hydrogeology, Soft computing

Bieng-Zih Hsieh; Charles Lewis; Zsay-Shing Lin

2005-04-01T23:59:59.000Z

205

Three-and-six-month-before forecast of water resources in a karst aquifer in the Terminio massif (Southern Italy)  

Science Conference Proceedings (OSTI)

The ability of artificial neural networks (ANN) to model the rainfall-discharge relationships of karstic aquifers has been studied in the Terminio massif (Southern Italy), which supplies the Naples area with a yearly mean discharge of approximately 1-3.5m^3/s. ... Keywords: Artificial neural network, Feature extraction, Forecast, Karstic aquifer, Serino, Spring discharge

Salvatore Rampone

2013-10-01T23:59:59.000Z

206

Interpretation of Water Chemistry and Stable Isotope Data from a Karst Aquifer According to Flow Regimes Identified through Hydrograph  

E-Print Network (OSTI)

82 Interpretation of Water Chemistry and Stable Isotope Data from a Karst Aquifer According to Flow.S. Geological Survey, 345 Middlefield Rd., MS 434, Menlo Park, CA, 94025 2 Univ. of Minnesota, Dept. of Geology for the identification of four separate flow regimes of the aquifer outflow. Major ion chemistry and stable isotopic

207

Evaluation of Carbon Sequestration in Kansas --  

E-Print Network (OSTI)

Electric Injection well (new) Core, injectivity, aquifer modeling of Arbuckle from OXY-Chem brine injection abandoned wells #12;In SituIn Situ Fate & Entrapment of Injected COFate & Entrapment of Injected CO22 During systems, Supercritical COStorage systems, Supercritical CO22 injection, Fate of injected COinjection, Fate

Peterson, Blake R.

208

Two well storage systems for combined heating and airconditioning by groundwater heatpumps in shallow aquifers  

SciTech Connect

The use of soil and ground water as an energy source and heat storage systems for heat pumps in order to conserve energy in heating and air conditioning buildings is discussed. Information is included on heat pump operation and performance, aquifer characteristics, soil and ground water temperatures, and cooling and heating demands. Mathematical models are used to calculate flow and temperature fields in the aquifer. It is concluded that two well storage systems with ground water heat pumps are desirable, particularly in northern climates. (LCL)

Pelka, W.

1980-07-01T23:59:59.000Z

209

Apparatus and method for extraction of chemicals from aquifer remediation effluent water  

DOE Patents (OSTI)

An apparatus and method for extraction of chemicals from an aquifer remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating aquifers contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.

McMurtrey, Ryan D. (Idaho Falls, ID); Ginosar, Daniel M. (Idaho Falls, ID); Moor, Kenneth S. (Idaho Falls, ID); Shook, G. Michael (Idaho Falls, ID); Moses, John M. (Dedham, MA); Barker, Donna L. (Idaho Falls, ID)

2002-01-01T23:59:59.000Z

210

Legal and regulatory issues affecting the aquifer thermal energy storage concept  

DOE Green Energy (OSTI)

A number of legal and regulatory issus that potentially can affect implementation of the Aquifer Thermal Energy Storage (ATES) concept are examined. This concept involves the storage of thermal energy in an underground aquifer until a later date when it can be effectively utilized. Either heat energy or chill can be stored. Potential end uses of the energy include district space heating and cooling, industrial process applications, and use in agriculture or aquaculture. Issues are examined in four categories: regulatory requirements, property rights, potential liability, and issues related to heat or chill delivery.

Hendrickson, P.L.

1980-10-01T23:59:59.000Z

211

Impact-driven pressure management via targeted brine extraction Conceptual studies of CO2 storage in saline formations  

E-Print Network (OSTI)

Water Associated with Carbon Dioxide Capture and Storage,and Detection of Carbon Dioxide in Dilute Aquifers, 9 thGeological Storage of Carbon Dioxide and Amending Council

Birkholzer, J.T.

2013-01-01T23:59:59.000Z

212

Salinity trends, variability, and control in the northern reach of the San Francisco Estuary  

E-Print Network (OSTI)

I. 1990. STL: a seasonal-trend decomposition procedure basedinfluence on salinity trends. Presentation at 2004 CALFEDFox JP, Miller BJ. 1990. Trends in freshwater inflow to San

Enright, Christopher; Culberson, Steven D

2010-01-01T23:59:59.000Z

213

Water use potential and salt tolerance of riparian species in saline-sodic environments.  

E-Print Network (OSTI)

??Salinization of soil and water resources exists on a global scale, largely due to irrigated agriculture in semi-arid climates. Coal bed methane (CBM) development, resulting (more)

Sessoms, Holly Nicol.

2004-01-01T23:59:59.000Z

214

Assessing constructed wetlands for beneficial use of saline-sodic water.  

E-Print Network (OSTI)

??Changes in agricultural practices, and irrigation strategies combined with natural processes, have led to increased salinization of soil and water resources worldwide. Coal bed methane (more)

Kirkpatrick, Amber Denise.

2005-01-01T23:59:59.000Z

215

Methodology for modeling the migration of EOR chemicals in fresh water aquifers  

SciTech Connect

The objective of this study is to develop a method for modeling the transport of EOR chemicals accidentally released to fresh water aquifers. Six examples involving hypothetical releases of EOR chemicals at surrogate aquifer sites are used to illustrate the application of this method. Typical injection rates and concentrations of EOR chemicals used at current or proposed projects were obtained from the literature and used as the basis for the hypothetical accidents. Four surrogate aquifer sites were selected from States where chemical flooding methods are employed. Each site is based on real hydrological data but presented in such a way to avoid identification with existing EOR fields. A significant amount of data is required to model ground water systems. The hypothetical examples help to indicate the type of data needed. The computer results illustrate that high levels of contamination are possible for many years. In addition, due to these high levels of contamination, it is possible for contaminants to migrate offsite of the EOR field. There are a variety of pathways through which EOR chemicals could be accidentally released to fresh water aquifers during normal EOR operations. There is insufficient EOR experience to date, however, to forecast risks accurately. 119 references, 10 figures, 9 tables.

Royce, B.; Garrell, M.; Kahn, A.; Kaplan, E.

1983-11-01T23:59:59.000Z

216

Assessment of Potential Benzene Contamination of the Ogallala Aquifer at the Pantex Plant, Texas  

E-Print Network (OSTI)

Assessment of Potential Benzene Contamination of the Ogallala Aquifer at the Pantex Plant, Texas National Laboratory Brian Looney, Savannah River Site Background and Objectives: In 1999 the Pantex Plant by these sampling results, Pantex Plant personnel initiated an internal investigative program to determine

Hazen, Terry

217

On parameterization of the inverse problem for estimating aquifer properties using tracer data  

E-Print Network (OSTI)

for estimating aquifer properties using tracer data, Water Resour. Res., 48, W06535, doi:10.1029/2011WR011203. 1. However, the calibration of distributed ground- water models based on limited measurements is generally or smoothing in the property of interest, to make underdetermined inverse problems well posed [Yeh, 1986

Hubbard, Susan

218

Economics of producing methane (exclusively) from geopressured aquifers along the Gulf Coast  

SciTech Connect

The purpose of this report was to estimate the cost of producing methane (natural gas) from geopressured aquifers inland from and along the coast of the Gulf of New Mexico. No other economic values of the geopressured brines were considered for exploitation. There were several component tasks of such an overall analysis which had to be completed in order to arrive at the final conclusion. (1) An estimate of the reservoir parameters of the geopressured aquifers; their areal extent, net thickness of productive sand, porosity, permeability, effective compressibility. It is these parameters which determine the production rates and the total recovery of the resource that may be expected within an economic time frame. (2) An estimate of the production rates and cumulative production of geopressured aquifers having reservoir properties falling into the range of values that may be anticipated from the results of the first task. (3) An estimate of the operating and capital costs of drilling wells and producing such geopressured aquifers, integral and significant part of the operating costs is the cost of disposing of the large quantities of produced brines following the desorption of the methane. (4) An estimate of the sales price of the recovered methane using appropriate discount rates.

Doscher, Todd M.; Osborne, R.N.; Wilson, T.; Rhee, S.W.

1978-03-01T23:59:59.000Z

219

Salinity gradient solar pond technology applied to potash solution mining  

DOE Green Energy (OSTI)

A solution mining facility at the Eddy Potash Mine, Eddy County, New Mexico has been proposed that will utilize salinity gradient solar pond (SGSP) technology to supply industrial process thermal energy. The process will include underground dissolution of potassium chloride (KCl) from pillars and other reserves remaining after completion of primary room and pillar mining using recirculating solutions heated in the SGSP. Production of KCl will involve cold crystallization followed by a cooling pond stage, with the spent brine being recirculated in a closed loop back to the SGSP for reheating. This research uses SGSP as a renewable, clean energy source to optimize the entire mining process, minimize environmental wastes, provide a safe, more economical extraction process and reduce the need for conventional processing by crushing, grinding and flotation. The applications of SGSP technology will not only save energy in the extraction and beneficiation processes, but also will produce excess energy available for power generation, desalination, and auxiliary structure heating.

Martell, J.A.; Aimone-Martin, C.T.

2000-06-12T23:59:59.000Z

220

Interannual Variability of the Subsurface High Salinity Tongue South of the Equator at 165E  

Science Conference Proceedings (OSTI)

A 14-yr time series of salinity at thermocline level was constructed from repeated meridional CTD sections (averaging about 110 days apart) spanning the equator along 165E during 198497. A tongue of high salinity water extends along the ...

William S. Kessler

1999-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

MINERALOGY AND GENESIS OF SMECTITES IN AN ALKALINE-SALINE ENVIRONMENT OF PANTANAL WETLAND, BRAZIL  

E-Print Network (OSTI)

MINERALOGY AND GENESIS OF SMECTITES IN AN ALKALINE-SALINE ENVIRONMENT OF PANTANAL WETLAND, BRAZIL, Universidade de Sa~o Paulo (USP), Av. Prof. Dr. Lineu Prestes, 338, 05508-900, Sa~o Paulo, Brazil 2 Soil-saline lake of Nhecola^ndia, a sub-region of the Pantanal wetland, Brazil, and then to identify the mechanisms

Ahmad, Sajjad

222

AQUIFER TESTING AND REBOUND STUDY IN SUPPORT OF THE 100-H DEEP CHROMIUM INVESTIGATION  

Science Conference Proceedings (OSTI)

The 100-HR-3 Groundwater Operable Unit (OU) second Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) 5-year review (DOEIRL-2006-20, The Second CERCLA Five-Year Review Report for the Hanford Site) set a milestone to conduct an investigation of deep hexavalent chromium contamination in the sediments of the Ringold upper mud (RUM) unit, which underlies the unconfined aquifer in the 100-H Area. The 5-year review noted that groundwater samples from one deep well extending below the aquitard (i.e., RUM) exceeded both the groundwater standard of 48 parts per billion (ppb) (Ecology Publication 94-06, Model Toxics Control Act Cleanup Statute and Regulation) and the federal drinking water standard of 100 {mu}g/L for hexavalent chromium. The extent of hexavalent chromium contamination in this zone is not well understood. Action 12-1 from the 5-year review is to perform additional characterization of the aquifer below the initial aquitard. Field characterization and aquifer testing were performed in the Hanford Site's 100-H Area to address this milestone. The aquifer tests were conducted to gather data to answer several fundamental questions regarding the presence of the hexavalent chromium in the deep sediments of the RUM and to determine the extent and magnitude of deeper contamination. The pumping tests were performed in accordance with the Description of Work for Aquifer Testing in Support of the 100-H Deep Chromium Investigation (SGW-41302). The specific objectives for the series of tests were as follows: (1) Evaluate the sustainable production of the subject wells using step-drawdown and constant-rate pumping tests. (2) Collect water-level data to evaluate the degree of hydraulic connection between the RUM and the unconfined (upper) aquifer (natural or induced along the well casing). (3) Evaluate the hydraulic properties of a confined permeable layer within the RUM.; (4) Collect time-series groundwater samples during testing to evaluate the extent and persistence of hexavalent chromium in the deeper zones. Use data collected to refine the current conceptual model for the 100-H Area unconfined aquifer and the RUM in this area. (5) Evaluate the concentration 'rebound' in the unconfined aquifer of hexavalent chromium and the contaminants of concern during shutdown of the extraction wells. Measure co-contaminants at the beginning, middle, and end of each pumping test. The RUM is generally considered an aquitard in the 100-HR-3 OU; however, several water-bearing sand layers are present that are confined within the RUM. The current hydrogeologic model for the 100-H Area aquifer system portrays the RUM as an aquitard layer that underlies the unconfined aquifer, which may contain permeable zones, stringers, or layers. These permeable zones may provide pathways for chromium to migrate deeper into the RUM under certain hydrogeologic conditions. One condition may be the discharge of large volumes of cooling water that occurred near the former H Reactor, which caused a mound of groundwater to form 4.9 to 10.1 m (16 to 33 ft) above the natural water table. The cooling water reportedly contained 1 to 2 mglL of hexavalent chromium for corrosion prevention. Three alternate hypotheses for the introduction of hexavalent chromium into the RUM are as follows: (1) Local groundwater with higher concentrations of hexavalent chromium originating from reactor operations at H Reactor was driven by high heads from groundwater mounding in the unconfined aquifer into the RUM via permeable pathways in the upper surface of the RUM. (2) Local groundwater with hexavalent chromium was introduced from the unconfined aquifer via well boreholes, either during drilling or as a result of poor well construction, allowing hydraulic communication between the unconfined aquifer and the RUM. (3) Hexavalent chromium migrated across the Hom area within the more permeable zones of the RUM. The three wells used for the aquifer pumping tests (199-H3-2C, 199-H4-12C, and 199-H4-15CS) exhibit hexavalent chromium contamination in confined aqu

SMOOT JL

2010-11-05T23:59:59.000Z

223

Interactions and Implications of a Collector Well with a River in an Unconfined Aquifer with Regional Background Flow  

E-Print Network (OSTI)

Ranney radial collector wells consist of an array of horizontal lateral wells arranged radially around and connected to the base of a vertical well. They offer numerous advantages over traditional vertical wells with application in both the petroleum industry and hydrologic sciences. This study improved the understanding of the interaction of collector wells and the aquifers/reservoirs they tap by numerically modeling flux exchanges between a collector well and a river in an unconfined aquifer with regional background flow. Modeling demonstrated that flux along each horizontal lateral increased with distance from the vertical well stem following a third order polynomial function. Ultimately these models demonstrated that in the collector well/aquifer/river system, the pumping rate of the collector well was the dominant factor in controlling flux between the river and aquifer under various conditions. This study can be used to project the maximum allowable pumping rate without causing an initially gaining river to become a losing river.

Dugat, William D., IV

2009-08-01T23:59:59.000Z

224

Summary and evaluation of hydraulic property data available for the Hanford Site upper basalt confined aquifer system  

SciTech Connect

Pacific Northwest Laboratory, as part of the Hanford Site Ground-Water Surveillance Project, examines the potential for offsite migration of contamination within the upper basalt confined aquifer system. For the past 40 years, hydrologic testing of the upper basalt confined aquifer has been conducted by a number of Hanford Site programs. Hydraulic property estimates are important for evaluating aquifer flow characteristics (i.e., ground-water flow patterns, flow velocity, transport travel time). Presented are the first comprehensive Hanford Site-wide summary of hydraulic properties for the upper basalt confined aquifer system (i.e., the upper Saddle Mountains Basalt). Available hydrologic test data were reevaluated using recently developed diagnostic test analysis methods. A comparison of calculated transmissivity estimates indicates that, for most test results, a general correspondence within a factor of two between reanalysis and previously reported test values was obtained. For a majority of the tests, previously reported values are greater than reanalysis estimates. This overestimation is attributed to a number of factors, including, in many cases, a misapplication of nonleaky confined aquifer analysis methods in previous analysis reports to tests that exhibit leaky confined aquifer response behavior. Results of the test analyses indicate a similar range for transmissivity values for the various hydro-geologic units making up the upper basalt confined aquifer. Approximately 90% of the calculated transmissivity values for upper basalt confined aquifer hydrogeologic units occur within the range of 10{sup 0} to 10{sup 2} m{sup 2}/d, with 65% of the calculated estimate values occurring between 10{sup 1} to 10{sup 2} m{sup 2}d. These summary findings are consistent with the general range of values previously reported for basalt interflow contact zones and sedimentary interbeds within the Saddle Mountains Basalt.

Spane, F.A. Jr.; Vermeul, V.R.

1994-09-01T23:59:59.000Z

225

Wetland Flow and Salinity Budgets and Elements of a Decision Support System toward Implementation of Real-Time Seasonal Wetland Salinity Management  

SciTech Connect

The project has provided science-based tools for the long-term management of salinity in drainage discharges from wetlands to the San Joaquin River. The results of the project are being used to develop best management practices (BMP) and a decision support system to assist wetland managers adjust the timing of salt loads delivered to the San Joaquin River during spring drawdown. Adaptive drainage management scheduling has the potential to improve environmental compliance with salinity objectives in the Lower San Joaquin River by reducing the frequency of violation of Vernalis salinity standards, especially in dry and critically dry years. The paired approach to project implementation whereby adaptively managed and traditional practices were monitored in a side-by-side fashion has provided a quantitative measure of the impacts of the project on the timing of salt loading to the San Joaquin River. The most significant accomplishments of the project has been the technology transfer to wetland biologists, ditch tenders and water managers within the Grasslands Ecological Area. This learning by doing has build local community capacity within the Grassland Water District and California Department of Fish and Game providing these institutions with new capability to assess and effectively manage salinity within their wetlands while simultaneously providing benefits to salinity management of the San Joaquin River.

Quinn, N.W.T.; Ortega, R.; Rahilly, P.; Johnson, C.B.

2011-12-17T23:59:59.000Z

226

Results from a workshop on research needs for modeling aquifer thermal energy storage systems  

DOE Green Energy (OSTI)

A workshop an aquifer thermal energy storage (ATES) system modeling was conducted in Seattle, Washington, on November 30 and December 1, 1989 by Pacific Northwest Laboratory (PNL). The goal of the workshop was to develop a list of high-priority research activities that would facilitate the commercial success of ATES. During the workshop, participants reviewed currently available modeling tools for ATES systems and produced a list of significant issues related to modeling ATES systems. Participants assigned a priority to each issue on the list by voting and developed a list of research needs for each of four high-priority research areas; the need for a feasibility study model, the need for engineering design models, the need for aquifer characterization, and the need for an economic model. The workshop participants concluded that ATES commercialization can be accelerated by aggressive development of ATES modeling tools and made specific recommendations for that development. 2 tabs.

Drost, M K

1990-08-01T23:59:59.000Z

227

Injection of Zero Valent Iron into an Unconfined Aquifer Using Shear-Thinning Fluids  

Science Conference Proceedings (OSTI)

Approximately 190 kg of two micron-diameter zero-valent iron (ZVI) particles were injected into a test zone in the top two meters of an unconfined aquifer within a trichloroethene (TCE) source area. A shear-thinning fluid was used to enhance ZVI delivery in the subsurface to a radial distance of up to four meters from a single injection well. The ZVI particles were mixed in-line with the injection water, shear-thinning fluid, and a low concentration of surfactant. ZVI was observed at each of the seven monitoring wells within the targeted radius of influence during injection. Additionally, all wells within the targeted zone showed low TCE concentrations and primarily dechlorination products present 44 days after injection. These results suggest that ZVI can be directly injected into an aquifer with shear-thinning fluids and extends the applicability of ZVI to situations where other emplacement methods may not be viable.

Truex, Michael J.; Vermeul, Vincent R.; Mendoza, Donaldo P.; Fritz, Brad G.; Mackley, Rob D.; Oostrom, Martinus; Wietsma, Thomas W.; Macbeth, Tamzen

2011-02-18T23:59:59.000Z

228

Hydrologic characterization of the unconfined aquifer at the University of Alabama Student Recreation Center, Tuscaloosa, Alabama  

DOE Green Energy (OSTI)

Seasonal thermal energy storage (STES) involves storing thermal energy such as winter chill, summer heat, and industrial waste heat for future use in heat and/or cooling buildings or for industrial processes. Widespread development and implementation of STES would significantly reduce the need to generate primary energy in the United States. Recent data indicate that STES is technically suitable for providing 5% to 10% of the nation's energy, with major contributions in the commercial and industrial sectors and in district heating and cooling applications. This report describes aquifer characterization at the University of Alabama Student Recreation Center in Tuscaloosa, Alabama. The purpose of the testing is to provide design data for the University's use in modifying and expanding an existing ATES well field. The aquifer characterization work was conducted by the Pacific Northwest Laboratory (Seasonal Thermal Energy Storage Program) in cooperation with the University of Alabama as part of efforts to assess the use of chill ATES for space cooling.

Hall, S.H.; Newcomer, D.R.

1992-02-01T23:59:59.000Z

229

Simulation Study of Heat Transportation in an Aquifer about Well-water-source Heat Pump  

E-Print Network (OSTI)

The study of groundwater reinjection, pumping and heat transportation in an aquifer plays an important theoretical role in ensuring the stability of deep-well water reinjection and pumping as well as smooth reinjection. Based on the related conception of underground hydrogeology and the rationale of seepage flow mechanics, a geologic conceptual model of doublet reinjection and a seepage flow model of heat transportation are proposed in this paper. The temperature distribution in the temperature field was obtained by a coupled method of the heat transportation equation and groundwater seepage flow equation fitting for the seepage-affected section. The temperature changes in aquifer and heat storage efficiency are analyzed under different working conditions. All the work referenced above provided references for the popularization and evaluation of well-water source heat pump.

Cong, X.; Liu, Y.; Yang, W.

2006-01-01T23:59:59.000Z

230

Aquifer Testing Recommendations for Supporting Phase II of the T Area Technetium-99 Data Objectives Process  

Science Conference Proceedings (OSTI)

Aquifer characterization needs are currently being assessed to optimize pump-and-treat remedial strategies within the 200-ZP-1 operable unit, specifically for the immediate area of the 241-T Tank Farm. This report provides a general discussion of the six identified hydrologic test methods for possible subsequent characterization within the 241-T Tank Farm area and details for implementing the large-scale recovery test after terminating pumping at the 241-Tank Farm extraction well locations.

Spane, Frank A.

2008-04-02T23:59:59.000Z

231

Exposure of a food crop to trichloroethylene from a contaminated aquifer. Master's thesis  

Science Conference Proceedings (OSTI)

This research developed a methodology for assessment of the exposure of a mature corn crop to trichloroethylene from a contaminated aquifer. The methodology was then applied to the case of Hill AFB to determine the ability of the methodology to provide information about a specific exposure. Current procedures sample for food contamination but do not attempt to predict exposure problems. A review of the potential exposure pathways from the aquifer to the crop was conducted. Based on this review, the exposures due to soil gas and irrigation were modeled. Empirical estimated were used to approximate the expected flux of soil gas vaporizing directly from the aquifer. On the basis of this approximation, the exposure the air of the crop canopy was mathematically estimated. Analytical models were developed to simulate the amount of the contaminant reaching the crop from two different means of irrigation. The subsequent exposure once the contaminated irrigation water had reached the crop was modeled both in the air of the crop canopy and the soil phase near the root system. The methodology provided insights into which exposure pathways are more important than others and which environmental parameters most influence the amount of exposure.

Baringer, R.G.

1994-09-01T23:59:59.000Z

232

Evaluation of available saline water resources in New Mexico for the production of microalgae  

DOE Green Energy (OSTI)

Researchers evaluated saline water resources in New Mexico for their suitability as sites for large-scale microalgae production facilities. Production of microalgae could provide a renewable source of fuel, chemicals, and food. In addition, making use of the unused saline water resources would increase the economic activity in the state. After analyzing the 15 billion acre-ft of unused saline water resources in the state, scientists narrowed the locations down to six sites with the most potential. With further analysis, they chose the Tularosa Basin in southern New Mexico as the best-suited area for 100-hectare microalgae production facility. 34 refs., 38 figs., 14 tabs.

Lansford, R.; Hernandez, J.; Enis, P.; Truby, D.; Mapel, C.

1990-08-01T23:59:59.000Z

233

A Standard Analytic Curve of Potential Temperature versus Salinity for the Western North Atlantic  

Science Conference Proceedings (OSTI)

An algorithm is described for computing salinity as a continuous function of potential temperature for the western North Atlantic. The algorithm uses historical data compiled by Worthington and Melcalf (1961) for the deep western North Atlantic, ...

L. Armi; N. A. Bray

1982-04-01T23:59:59.000Z

234

Nonnormal Multidecadal Response of the Thermohaline Circulation Induced by Optimal Surface Salinity Perturbations  

Science Conference Proceedings (OSTI)

Optimal perturbations of sea surface salinity are obtained for an idealized North Atlantic basin using a 3D planetary geostrophic modeloptimality is defined with respect to the intensity of the meridional overturning circulation. Both optimal ...

Florian Svellec; Thierry Huck; Mahdi Ben Jelloul; Jrme Vialard

2009-04-01T23:59:59.000Z

235

The influence of geothermal sources on deep ocean temperature, salinity, and flow fields  

E-Print Network (OSTI)

This thesis is a study of the effect of geothermal sources on the deep circulation, temperature and salinity fields. In Chapter 1 background material is given on the strength and distribution of geothermal heating. In ...

Speer, Kevin G. (Kevin George)

1988-01-01T23:59:59.000Z

236

Tropical Subsurface Salinity and Tritium Distributions in the Pacific: Their Differences and Formation Mechanisms  

Science Conference Proceedings (OSTI)

While high salinity water extends to the equator in the upper thermocline of the Pacific in the Southern Hemisphere (SH), it hits the western boundary (WB) farther north of the equator in the Northern Hemisphere (NH), suggesting that no interior ...

Masami Nonaka; Kensuke Takeuchi

2001-05-01T23:59:59.000Z

237

Optimizing Performance of a Microwave Salinity Mapper: STARRS L-Band Radiometer Enhancements  

Science Conference Proceedings (OSTI)

Airborne microwave radiometers for salinity remote sensing have advanced to a point where operational surveys can be conducted over the inner continental shelf to observe the evolution of freshwater plumes emanating from rivers and estuaries. To ...

Derek M. Burrage; Joel C. Wesson; Mark A. Goodberlet; Jerry L. Miller

2008-05-01T23:59:59.000Z

238

Vicarious Calibration of an Ocean Salinity Radiometer from Low Earth Orbit  

Science Conference Proceedings (OSTI)

Statistical properties of the brightness temperature (TB) measured by a low-earth-orbiting radiometer operating at 1.4 GHz are considered as a means of calibrating and validating the sensor. Mapping of ocean salinity by such an instrument ...

Christopher S. Ruf

2003-11-01T23:59:59.000Z

239

Droplet Spectra Broadening by Ripening Process. Part I: Roles of Curvature and Salinity of Cloud Droplets  

Science Conference Proceedings (OSTI)

The ripening process occurs due to thermodynamic instability of droplet size spectra in clouds. This instability results from the existence of droplets with different salinity and size in the droplet spectra. The ripening process is independent ...

Fikrettin elik; John D. Marwitz

1999-09-01T23:59:59.000Z

240

Thermohaline Oscillations Induced by Strong Steady Salinity Forcing of Ocean General Circulation Models  

Science Conference Proceedings (OSTI)

A series of numerical experiments is conducted with a three-dimensional ocean general circulation model and a two-dimensional counterpart both designed for efficient integration over diffusive (millennial) time scales. With strong steady salinity ...

Michael Winton; E. S. Sarachik

1993-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Double-Diffusive Intrusions in a Stable Salinity Gradient Heated from Below  

Science Conference Proceedings (OSTI)

Two-dimensional direct numerical simulations (DNS) are used to investigate the growth and nonlinear equilibration of spatially periodic double-diffusive intrusion for negative vertical temperature Tz < 0 and salinity Sz < 0 gradients, which are ...

Julian Simeonov; Melvin E. Stern

2008-10-01T23:59:59.000Z

242

Fifty-Year Trends in Global Ocean Salinities and Their Relationship to Broad-Scale Warming  

Science Conference Proceedings (OSTI)

Using over 1.6 million profiles of salinity, potential temperature, and neutral density from historical archives and the international Argo Program, this study develops the three-dimensional field of multidecadal linear change for ocean-state ...

Paul J. Durack; Susan E. Wijffels

2010-08-01T23:59:59.000Z

243

The Effect of Groundwater Inflow on Evaporation from a Saline Lake  

Science Conference Proceedings (OSTI)

A decade study of the hydrometeorology of Big Quill Lake in Saskatchewan, a saline prairie lake, has effectively used remote sensing to delineate groundwater inflow. The lake covers an area of 250 square kilometers with the groundwater seeping ...

Jeffrey M. Whiting

1984-02-01T23:59:59.000Z

244

Subtidal Salinity and Velocity in the Hudson River Estuary: Observations and Modeling  

Science Conference Proceedings (OSTI)

A tidally and cross-sectionally averaged model based on the temporal evolution of the quasi-steady Hansen and Rattray equations is applied to simulate the salinity distribution and vertical exchange flow along the Hudson River estuary. The model ...

David K. Ralston; W. Rockwell Geyer; James A. Lerczak

2008-04-01T23:59:59.000Z

245

A study of low salinity water flooding in 1D and 2D.  

E-Print Network (OSTI)

??The goal of this research was to study the effect of salinity on the waterflood of initially oil-wet clay-rich sand packs. Two one-foot long sand (more)

Fu, Joseph Yuchun

2012-01-01T23:59:59.000Z

246

Simulation Errors Associated with the Neglect of Oceanic Salinity in an Atmospheric GCM  

Science Conference Proceedings (OSTI)

In all the atmospheric general circulation models (GCMs) at the Goddard Laboratory for Atmospheres (GLA), the influence of oceanic salinity on the saturation vapor pressure of seawater is ignored. Since the relative humidity in the oceanic ...

Y. C. Sud; G. K. Walker

1997-01-01T23:59:59.000Z

247

University of Minnesota aquifer thermal energy storage (ATES) project report on the third long-term cycle  

DOE Green Energy (OSTI)

The University of Minnesota aquifer thermal energy storage (ATES) system has been operated as a field test facility (FTF) since 1982. The objectives were to design, construct, and operate the facility to study the feasibility of high-temperature ATES in a confined aquifer. Four short-term and two long-term cycles were previously conducted, which provided a greatly increased understanding of the efficiency and geochemical effects of high-temperature aquifer thermal energy storage. The third long-term cycle (LT3) was conducted to operate the ATES system in conjunction with a real heating load and to further study the geochemical impact that heated water storage had on the aquifer. For LT3, the source and storage wells were modified so that only the most permeable portion, the Ironton-Galesville part, of the Franconia-Ironton-Galesville aquifer was used for storage. This was expected to improve storage efficiency by reducing the surface area of the heated volume and simplify analysis of water chemistry results by reducing the number of aquifer-related variables which need to be considered. During LT3, a total volume of 63.2 {times} 10{sup 3} m {sup 3} of water was injected at a rate of 54.95 m{sup 3}/hr into the storage well at a mean temperature of 104.7{degrees}C. Tie-in to the reheat system of the nearby Animal Sciences Veterinary Medicine (ASVM) building was completed after injection was completed. Approximately 66 percent (4.13 GWh) of the energy added to the aquifer was recovered. Approximately 15 percent (0.64 GWh) of the usable (10 building. Operations during heat recovery with the ASVM building`s reheat system were trouble-free. Integration into more of the ASVM (or other) building`s mechanical systems would have resulted in significantly increasing the proportion of energy used during heat recovery.

Hoyer, M.C.; Hallgren, J.P.; Uebel, M.H.; Delin, G.N.; Eisenreich, S.J.; Sterling, R.L.

1994-12-01T23:59:59.000Z

248

Salinization of Irrigated Urban Soils: A Case Study of El Paso, TX  

E-Print Network (OSTI)

This study was conducted to assess soil salinity levels in large landscape areas, such as golf courses, parks, and school grounds which were developed on various soil types in El Paso, Texas. The survey encompassed the East, the Central, the Northwest, and the Upper and Lower Valleys, covering 16 fairways at seven golf courses, 37 city parks, 30 school grounds, and 13 apartment landscapes on the Westside. The highest soil salinity (6 to 11 dS m-1) was found in the clayey soils of the Upper and Lower valleys, even when water of low salinity (650 to 750 ppm) had been used for irrigation. Spadoratic soil salinization was also observed in loamy soils of the South Central irrigated with city potable water, and topdressed soils of the Northwest after conversion to reclaimed water. Soil salinization was not observed in deep sand along I-10, and seldom in sandy calcic soils in the East and North Central, even though these soils contain a layer of caliche. Soil types play a role on soil salinization as much as does water quality.

Miyamoto, S.

2012-10-25T23:59:59.000Z

249

A Mechanism of Improved Oil Recovery by Low-Salinity Waterflooding in Sandstone Rock  

E-Print Network (OSTI)

Injection of low-salinity water showed high potentials in improving oil recovery when compared to high-salinity water. However, the optimum water salinity and conditions are uncertain, due to the lack of understanding the mechanisms of fluid-rock interactions. The main objective of this study is to examine the potential and efficiency of low-salinity water in secondary and tertiary oil recovery for sandstone reservoirs. Similarly, this study aims to help in understanding the dominant mechanisms that aid in improving oil recovery by low-salinity waterflooding. Furthermore, the impact of cation type in injected brines on oil recovery was investigated. Coreflood experiments were conducted to determine the effect of water salinity and chemistry on oil recovery in the secondary and tertiary modes. The contact angle technique was used to study the impact of water salinity and composition on rock wettability. Moreover, the zeta potential at oil/brine and brine/rock interfaces was measured to explain the mechanism causing rock wettability alteration and improving oil recovery. Deionized water and different brines (from 500 to 174,000 mg/l), as well as single cation solutions were tested. Two types of crude oil with different properties and composition were used. Berea sandstone cores were utilized in the coreflood experiments. Coreflood tests indicated that injection of deionized water in the secondary mode resulted in significant oil recovery, up to 22% improvement, compared to seawater flooding. However, no more oil was recovered in the tertiary mode. In addition, injection of NaCl solution increased the oil recovery compared to injection of CaCl2 or MgCl2 at the same concentration. Contact angle results demonstrated that low-salinity water has an impact on the rock wettability; the more reduction in water salinity, the more a water-wet rock surface is produced. In addition, NaCl solutions made the rock more water-wet compared to CaCl2 or MgCl2 at the same concentration. Low-salinity water and NaCl solutions showed a highly negative charge at rock/brine and oil/brine interfaces by zeta potential measurements, which results in greater repulsive forces between the oil and rock surface. This leads to double-layer expansion and water-wet systems. These results demonstrate that the double-layer expansion is a primary mechanism of improving oil recovery when water chemical composition is manipulated.

Nasralla, Ramez

2013-05-01T23:59:59.000Z

250

Predevelopment Water-Level Contours for Aquifers in the Rainier Mesa and Shoshone Mountain area of the Nevada Test Site, Nye County, Nevada  

Science Conference Proceedings (OSTI)

Contaminants introduced into the subsurface of the Nevada Test Site at Rainier Mesa and Shoshone Mountain by underground nuclear testing are of concern to the U.S. Department of Energy and regulators responsible for protecting human health and safety. Although contaminants were introduced into low-permeability rocks above the regional flow system, the potential for contaminant movement away from the underground test areas and into the accessible environment is greatest by ground-water transport. The primary hydrologic control on this transport is evaluated and examined through a series of contour maps developed to represent the water-level distribution within each of the major aquifers underlying the area. Aquifers were identified and their extents delineated by merging and analyzing multiple hydrostratigraphic framework models developed by other investigators from existing geologic information. The contoured water-level distribution in each major aquifer was developed from a detailed evaluation and assessment of available water-level measurements. Multiple spreadsheets that accompany this report provide pertinent water-level and geologic data by well or drill hole. Aquifers are mapped, presented, and discussed in general terms as being one of three aquifer typesvolcanic aquifer, upper carbonate aquifer, or lower carbonate aquifer. Each of these aquifer types was subdivided and mapped as independent continuous and isolated aquifers, based on the continuity of its component rock. Ground-water flow directions, as related to the transport of test-generated contaminants, were developed from water-level contours and are presented and discussed for each of the continuous aquifers. Contoured water-level altitudes vary across the study area and range from more than 5,000 feet in the volcanic aquifer beneath a recharge area in the northern part of the study area to less than 2,450 feet in the lower carbonate aquifer in the southern part of the study area. Variations in water-level altitudes within any single continuous aquifer range from a few hundred feet in a lower carbonate aquifer to just more than 1,100 feet in a volcanic aquifer. Flow directions throughout the study area are dominantly southward with minor eastward or westward deviations. Primary exceptions are westward flow in the northern part of the volcanic aquifer and eastward flow in the eastern part of the lower carbonate aquifer. Northward flow in the upper and lower carbonate aquifers in the northern part of the study area is possible but cannot be substantiated because data are lacking. Interflow between continuous aquifers is evaluated and mapped to define major flow paths. These flow paths delineate tributary flow systems, which converge to form the regional ground-water flow system. The implications of these tributary flow paths in controlling transport away from the underground test areas at Rainier Mesa and Shoshone Mountain are discussed. The obvious data gaps contributing to uncertainties in the delineation of aquifers and development of water-level contours are identified and evaluated.

Joseph M. Fenelon; Randell J. Laczniak; and Keith J. Halford

2008-06-24T23:59:59.000Z

251

Single-well tracer methods for hydrogeologic evaluation of target aquifers  

DOE Green Energy (OSTI)

Designing an efficient well field for an aquifer thermal energy storage (ATES) project requires measuring local groundwater flow parameters as well as estimating horizontal and vertical inhomogeneity. Effective porosity determines the volume of aquifer needed to store a given volume of heated or chilled water. Ground-water flow velocity governs the migration of the thermal plume, and dispersion and heat exchange along the flow path reduces the thermal intensity of the recovered plume. Stratigraphic variations in the aquifer will affect plume dispersion, may bias the apparent rate of migration of the plume, and can prevent efficient hydraulic communication between wells. Single-well tracer methods using a conservative flow tracer such as bromide, along with pumping tests and water-level measurements, provide a rapid and cost-effective means for estimating flow parameters. A drift-and-pumpback tracer test yields effective porosity and flow velocity. Point-dilution tracer testing, using new instrumentation for downhole tracer measurement and a new method for calibrating the point-dilution test itself, yields depth-discrete hydraulic conductivity as it is affected by stratigraphy, and can be used to estimate well transmissivity. Experience in conducting both drift-and-pumpback and point-dilution tests at three different test sites has yielded important information that highlights both the power and the limitations of the single-well tracer methods. These sites are the University of Alabama Student Recreation Center (UASRC) ATES well field and the VA Medical Center (VA) ATES well field, both located in Tuscaloosa, Alabama, and the Hanford bioremediation test site north of Richland, Washington.

Hall, S.H.

1994-11-01T23:59:59.000Z

252

Prickett and Lonnquist aquifer simulation program for the Apple II minicomputer  

DOE Green Energy (OSTI)

The Prickett and Lonnquist two-dimensional groundwater model has been programmed for the Apple II minicomputer. Both leaky and nonleaky confined aquifers can be simulated. The model was adapted from the FORTRAN version of Prickett and Lonnquist. In the configuration presented here, the program requires 64 K bits of memory. Because of the large number of arrays used in the program, and memory limitations of the Apple II, the maximum grid size that can be used is 20 rows by 20 columns. Input to the program is interactive, with prompting by the computer. Output consists of predicted lead values at the row-column intersections (nodes).

Hull, L.C.

1983-02-01T23:59:59.000Z

253

Thermophysical behavior of St. Peter sandstone: application to compressed air energy storage in an aquifer  

DOE Green Energy (OSTI)

The long-term stability of a sandstone reservoir is of primary importance to the success of compressed air energy storage (CAES) in aquifers. The purpose of this study was to: develop experimental techniques for the operation of the CAES Porous Media Flow Loop (PMFL), an apparatus designed to study the stability of porous media in subsurface geologic environments, conduct experiments in the PMFL designed to determine the effects of temperature, stress, and humidity on the stability of candidate CAES reservoir materials, provide support for the CAES field demonstration project in Pittsfield, Illinois, by characterizing the thermophysical stability of Pittsfield reservoir sandstone under simulated field conditions.

Erikson, R.L.

1983-12-01T23:59:59.000Z

254

Analysis of the semianalytical method for matching aquifer influence functions using an analytical model  

E-Print Network (OSTI)

For a heterogeneous aquifer of unknown size and shape, ics. Aquifer Influence Functions (AIF) can be used to model the aquifer pressure behavior from field production and pressure data. Two methods have been used in the past to accomplish this, namely Linear Programming (LP) and the Semianalytical technique. The latter is based on the analytical solution form of a heterogeneous aquifer of any size and shape. The approximating AIF is a continuous function, which is a truncated series of the exact analytical solution. This Semianalytical function is fitted to field data by the use of nonlinear least squares fitting. It has the advantages over the LP method that it is much faster, uses less computer space, and does not require evenly spaced production periods. For the cases in which the OGIP is unknown, a technique was proposed in the past in which the term Relative Error is defined. Several values of OGIP are assumed, and the one that yields the minimum Relative Error is the actual or optimum value of OGIP. Because of the nonlinear nature of the optimization procedure, when the Semianalytical technique is used along with the Relative Error technique, it tends to be caught in the so-called local minima, which lead to the determination of spurious values of the AIF and the optimum OGIP. Both the LP and the Semianalytical techniques have been validated using field data. However, when the latter is used, weird variations of the Relative Error function, and unrealistically low values of the optimum OGIP are observed. A simple analytical model is used in this project. It allows the generation of synthetic data. The objective is to use those as input data to the Semianalytical and Relative Error techniques and determine their effectiveness to determine the AIF and the optimum OGIP which are known in advance. A modification is proposed in the current research to prevent the nonlinear regression from getting caught in the local minima. After this goal is attained, typical features in the normalized Relative Error and allows the determination of the drive mechanism and the OGIP even in gas reservoirs whose histories are so brief that the use of the p/Z technique becomes prohibitive.

Vega, Leonardo

1998-01-01T23:59:59.000Z

255

Low-Salinity Waterflooding to Improve Oil Recovery - Historical Field Evidence  

Science Conference Proceedings (OSTI)

Waterflooding is by far the most widely applied method of improved oil recovery. Crude oil/brine/rock interactions can lead to large variations in the displacement efficiency of wa-terfloods. Laboratory water-flood tests and single-well tracer tests have shown that injection of dilute brine can increase oil recovery, but work designed to test the method on a field scale has not yet been undertaken. Historical waterflood records could unintentionally provide some evidence of improved recovery from waterflooding with lower salinity brine. Nu-merous fields in the Powder River basin of Wyoming have been waterflooded using low salinity brine (about 500 ppm) obtained from the Madison limestone or Fox Hills sandstone. Three Minnelusa formation fields in the basin were identified as potential candidates for waterflood comparisons based on the salinity of the connate and injection water. Historical pro-duction and injection data for these fields were obtained from the public record. Field waterflood data were manipulated to be displayed in the same format as laboratory coreflood re-sults. Recovery from fields using lower salinity injection wa-ter was greater than that using higher salinity injection wa-termatching recovery trends for laboratory and single-well tests.

Eric P. Robertson

2007-11-01T23:59:59.000Z

256

Desorption Behavior of Trichloroethene and Tetrachloroethene in U.S. Department of Energy Savannah River Site Unconfined Aquifer Sediments  

SciTech Connect

The DOE Savannah River Site (SRS) is evaluating the potential applicability of the monitored natural attenuation (MNA) process as a contributor to the understanding of the restoration of its unconfined groundwater aquifer known to be contaminated with the chlorinated hydrocarbon compounds trichloroethylene (TCE) and tetrachloroethylene (PCE). This report discusses the results from aqueous desorption experiments on SRS aquifer sediments from two different locations at the SRS (A/M Area; P-Area) with the objective of providing technically defensible TCE/PCE distribution coefficient (Kd) data and data on TCE/PCE reversible and irreversible sorption behavior needed for further MNA evaluation.

Riley, Robert G.; Szecsody, Jim E.; Mitroshkov, Alexandre V.; Brown, Christopher F.

2006-06-21T23:59:59.000Z

257

3-D Transient Hydraulic Tomography in Unconfined Aquifers with Fast Drainage Response  

SciTech Connect

We investigate, through numerical experiments, the viability of three-dimensional transient hydraulic tomography (3DTHT) for identifying the spatial distribution of groundwater flow parameters (primarily, hydraulic conductivity K) in permeable, unconfined aquifers. To invert the large amount of transient data collected from 3DTHT surveys, we utilize an iterative geostatistical inversion strategy in which outer iterations progressively increase the number of data points fitted and inner iterations solve the quasilinear geostatistical formulas of Kitanidis. In order to base our numerical experiments around realistic scenarios, we utilize pumping rates, geometries, and test lengths similar to those attainable during 3DTHT field campaigns performed at the Boise Hydrogeophysical Research Site (BHRS). We also utilize hydrologic parameters that are similar to those observed at the BHRS and in other unconsolidated, unconfined fluvial aquifers. In addition to estimating K, we test the ability of 3DTHT to estimate both average storage values (specific storage Ss and specific yield Sy) as well as spatial variability in storage coefficients. The effects of model conceptualization errors during unconfined 3DTHT are investigated including: (1) assuming constant storage coefficients during inversion and (2) assuming stationary geostatistical parameter variability. Overall, our findings indicate that estimation of K is slightly degraded if storage parameters must be jointly estimated, but that this effect is quite small compared with the degradation of estimates due to violation of structural geostatistical assumptions. Practically, we find for our scenarios that assuming constant storage values during inversion does not appear to have a significant effect on K estimates or uncertainty bounds.

Cardiff, Michael A.; Barrash, Warren

2011-12-16T23:59:59.000Z

258

Hydrologic characterization of the unconfined aquifer at the University of Alabama Student Recreation Center, Tuscaloosa, Alabama  

DOE Green Energy (OSTI)

Seasonal thermal energy storage (STES) involves storing thermal energy such as winter chill, summer heat, and industrial waste heat for future use in heat and/or cooling buildings or for industrial processes. Widespread development and implementation of STES would significantly reduce the need to generate primary energy in the United States. Recent data indicate that STES is technically suitable for providing 5% to 10% of the nation`s energy, with major contributions in the commercial and industrial sectors and in district heating and cooling applications. This report describes aquifer characterization at the University of Alabama Student Recreation Center in Tuscaloosa, Alabama. The purpose of the testing is to provide design data for the University`s use in modifying and expanding an existing ATES well field. The aquifer characterization work was conducted by the Pacific Northwest Laboratory (Seasonal Thermal Energy Storage Program) in cooperation with the University of Alabama as part of efforts to assess the use of chill ATES for space cooling.

Hall, S.H.; Newcomer, D.R.

1992-02-01T23:59:59.000Z

259

Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Saline Valley Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility Saline Valley Hot Springs Sector Geothermal energy Type Pool and Spa Location Inyo County, California Coordinates 36.3091865°, -117.5495846° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

260

Salinity-induced hydrate dissociation: A mechanism for recent CH4 release on Mars  

SciTech Connect

Recent observations of CH4 in the Martian atmosphere suggest that CH4 has been added relatively recently. Several mechanisms for recent CH4 release have been proposed including subsurface biological methanogenesis, abiogenic hydrothermal and/or volcanic activity, dissociation of CH4 hydrates, atmospheric photolysis, or addition of organics via bolide impact. This study examines the effects of increasing salinity on gas hydrate stability and compares estimates of the Martian geothermal gradient to CH4 and CO2 hydrate stability fields in the presence of high salinity brines. The results demonstrate that salinity increases alone result in a significant decrease in the predicted hydrate stability zone within the Martian subsurface and may be a driving force in CH4 hydrate destabilization. Active thermal and/or pressure fluctuations are not required in order for CH4 hydrates to be the source of atmospheric CH4.

Madden, Megan Elwood [ORNL; Ulrich, Shannon M [ORNL; Onstott, Tullis [Princeton University; Phelps, Tommy Joe [ORNL

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Collection of High Energy Yielding Strains of Saline Microalgae from the Hawaiian Islands: Final Technical Report, Year 1  

DOE Green Energy (OSTI)

Microalgae were collected from 48 locations in the Hawaiian Islands in 1985. The sites were an aquaculture tank; a coral reef; bays; a geothermal steam vent; Hawaiian fish ponds; a Hawaiian salt punawai (well); the ocean; river mouths; saline lakes; saline pools; saline ponds; a saline swamp; and the ponds, drainage ditches and sumps of commercial shrimp farms. From 4,800 isolations, 100 of the most productive clones were selected to be maintained by periodic transfer to sterile medium. Five clones were tested for growth rate and production in a full-spectrum-transmitting solarium.

York, R. H.

1986-01-01T23:59:59.000Z

262

Impact of Climate Change on Irrigation Water Availability, Crop Water Requirements and Soil Salinity in the SJV, CA  

E-Print Network (OSTI)

groundwater levels, land subsidence, soil salinity, and cropeffects such as land subsidence. Under the section yields, and on land subsidence. A second group of measures

Hopmans, Jan W; Maurer, Edwin P

2008-01-01T23:59:59.000Z

263

Improving land-surface model hydrology: Is an explicit aquifer model better than a deeper soil profile?  

E-Print Network (OSTI)

-Yue Niu,1 Pat J.-F. Yeh,4 and James Famiglietti4 Received 24 February 2007; revised 3 April 2007; accepted Community Land Model (CLM) we evaluate three parameterizations of vertical water flow: (1) a shallow soil variation in terrestrial water storage; and (3) a lumped, unconfined aquifer model coupled to the shallow

Yang, Zong-Liang

264

Estimation of hydraulic properties and development of a layered conceptual model for the Snake River plain aquifer at the Idaho National Engineering Laboratory, Idaho  

SciTech Connect

The Idaho INEL Oversight Program, in association with the University of Idaho, Idaho Geological Survey, Boise State University, and Idaho State University, developed a research program to determine the hydraulic properties of the Snake River Plain aquifer and characterize the vertical distribution of contaminants. A straddle-packer was deployed in four observation wells near the Idaho Chemical Processing Plant at the Idaho National Engineering Laboratory. Pressure transducers mounted in the straddle-packer assembly were used to monitor the response of the Snake River Plain aquifer to pumping at the ICPP production wells, located 2600 to 4200 feet from the observation wells. The time-drawdown data from these tests were used to evaluate various conceptual models of the aquifer. Aquifer properties were estimated by matching time-drawdown data to type curves for partially penetrating wells in an unconfined aquifer. This approach assumes a homogeneous and isotropic aquifer. The hydraulic properties of the aquifer obtained from the type curve analyses were: (1) Storativity = 3 x 10{sup -5}, (2) Specific Yield = 0.01, (3) Transmissivity = 740 ft{sup 2}/min, (4) Anisotropy (Kv:Kh)= 1:360.

Frederick, D.B.; Johnson, G.S.

1996-02-01T23:59:59.000Z

265

On the Mechanisms of Episodic Salinity Outflow Events in the Strait of Hormuz  

Science Conference Proceedings (OSTI)

Observations in the Strait of Hormuz (26.26N, 56.08E) during 199798 showed substantial velocity fluctuations, accompanied by episodic changes in the salinity outflow events with amplitude varying between 1 and 2 psu on time scales of several ...

Prasad G. Thoppil; Patrick J. Hogan

2009-06-01T23:59:59.000Z

266

On Steady Salinity Distribution and Circulation in Partially Mixed and Well Mixed Estuaries  

Science Conference Proceedings (OSTI)

Perturbation analysis based on small ? = Ra0.23Fm0.9, where Ra is the Rayleigh number and Fm is the Froude number, is used to study steady-state circulation and salinity distribution in estuaries. The classical Hansen and Rattray's similarity ...

Li-Yauw Oey

1984-03-01T23:59:59.000Z

267

Saline tracer visualized with three-dimensional electrical resistivity tomography: Field-scale spatial moment analysis  

E-Print Network (OSTI)

) was used to monitor the migration of a saline tracer in a two-well pumping-injection experiment conducted of the bulk media changes as the tracer migrates from the pumping to the injection well. The local Figure 2 as in (c) a photograph of the site (not aligned to schematics). ERT wells are labeled A-D. Injection

Singha, Kamini

268

Effect of Sea Ice on the Salinity of Antarctic Bottom Waters  

Science Conference Proceedings (OSTI)

Brine rejection during the formation of Antarctic sea ice is known to enhance the salinity of dense shelf waters in the Weddell and Ross Seas. As these shelf waters flow off the shelves and descend to the bottom, they entrain ambient deep water ...

J. R. Toggweiler; B. Samuels

1995-09-01T23:59:59.000Z

269

Use of the TemperatureSalinity Relation in a Data Assimilation Context  

Science Conference Proceedings (OSTI)

A data analysis using conductivitytemperaturedepth (CTD) measurements in the western tropical Pacific is carried out to get an estimate of the timescale over which temperaturesalinity (TS) relationships are preserved. Results show that the T...

Alberto Troccoli; Keith Haines

1999-12-01T23:59:59.000Z

270

Salinity Variability and Its Role in the Barrier-Layer Formation during TOGA-COARE  

Science Conference Proceedings (OSTI)

During the intensive observation period of TOGA-COARE between November 1992 and February 1993, two R/V Franklin cruises, FR09/92 and FR01/93, were carried out to study the response of oceanic surface layer temperature and salinity to atmospheric ...

Yuzhu You

1995-11-01T23:59:59.000Z

271

Soil morphological control on saline and freshwater lake hydrogeochemistry in the Pantanal of Nhecolndia, Brazil  

E-Print Network (OSTI)

morphological control on saline and freshwater lake hydrogeochemistry in the Pantanal of Nhecolândia, Brazil L-MS, Brazil 4 ­ Laboratório de Pedologia, Departamento de Geografia, Universidade de São Paulo C.P. 8105, 05508-900, São Paulo, Brazil 5 - UFMS, Departamento de Geografia, Campus de Três Lagoas, Av. Ranulfo

Paris-Sud XI, Université de

272

Soil mineral genesis and distribution in a saline lake landscape of the Pantanal Wetland, Brazil  

E-Print Network (OSTI)

Soil mineral genesis and distribution in a saline lake landscape of the Pantanal Wetland, Brazil S Geografia, Universidade de São Paulo, São Paulo, Brazil b Soil & Water Sciences Program, Department São Paulo, Piracicaba, Brazil a b s t r a c ta r t i c l e i n f o Article history: Received 20 August

Ahmad, Sajjad

273

THE EFFECTS OF NON-CONDENSIBLE GAS AND SALINITY ON STEAM ADSORPTION  

E-Print Network (OSTI)

THE EFFECTS OF NON-CONDENSIBLE GAS AND SALINITY ON STEAM ADSORPTION A REPORT SUBMITTED reservoir materials was investigated by a transient flow technique using steam and C02 gas. Theoretical pressure exerted by steam pressure inside the sample was measured against time during a desorption process

Stanford University

274

Interaction of cold-water aquifers with exploited reservoirs of the Cerro Prieto geothermal system  

DOE Green Energy (OSTI)

Cerro Prieto geothermal reservoirs tend to exhibit good hydraulic communication with adjacent cool groundwater aquifers. Under natural state conditions the hot fluids mix with the surrounding colder waters along the margins of the geothermal system, or discharge to shallow levels by flowing up fault L. In response to exploitation reservoir pressures decrease, leading to changes in the fluid flow pattern in the system and to groundwater influx. The various Cerro Prieto reservoirs have responded differently to production, showing localized near-well or generalized boiling, depending on their access to cool-water recharge. Significant cooling by dilution with groundwater has only been observed in wells located near the edges of the field. In general, entry of cool water at Cerro Prieto is beneficial because it tends to maintain reservoir pressures, restrict boiling, and lengthen the life and productivity of wells. 15 refs., 10 figs., 1 tab.

Truesdell, A.H. (Geological Survey, Menlo Park, CA (USA)); Lippmann, M.J. (Lawrence Berkeley Lab., CA (USA))

1990-04-01T23:59:59.000Z

275

Aquifer thermal energy storage reference manual: seasonal thermal energy storage program  

DOE Green Energy (OSTI)

This is the reference manual of the Seasonal Thermal Energy Storage (STES) Program, and is the primary document for the transfer of technical information of the STES Program. It has been issued in preliminary form and will be updated periodically to include more technical data and results of research. As the program progresses and new technical data become available, sections of the manual will be revised to incorporate these data. This primary document contains summaries of: the TRW, incorporated demonstration project at Behtel, Alaska, Dames and Moore demonstration project at Stony Brook, New York, and the University of Minnesota demonstration project at Minneapolis-St. Paul, Minnesota; the technical support programs including legal/institutional assessment; economic assessment; environmental assessment; field test facilities; a compendia of existing information; numerical simulation; and non-aquifer STES concepts. (LCL)

Prater, L.S.

1980-01-01T23:59:59.000Z

276

Abiotic/Biotic Degradation and Mineralization of N-Nitrosodimethylamine in Aquifer Sediments  

Science Conference Proceedings (OSTI)

The N-nitrosodimethylamine (NDMA) degradation rate and mineralization rate were measured in two aquifer sediments that received treatments to create oxic, reducing, and sequential reducing/oxic environments. Chemically reduced sediments rapidly abiotically degraded NDMA to nontoxic dimethylamine (DMA) to parts per trillion levels, then degraded to further products. NDMA was partially mineralized in reduced sediments (6 to 28 percent) at a slow rate (half-life 3,460 h) by an unknown abiotic/biotic pathway. In contrast, NDMA was mineralized more rapidly (half-life 342 h) and to a greater extent (30 to 81 percent) in oxic sediments with propane addition, likely by a propane monooxygenase pathway. NDMA mineralization in sequential reduced sediment followed by oxic sediment treatment did result in slightly more rapid mineralization and a greater mineralization extent relative to reduced systems. These increases were minor, so aerobic NDMA mineralization with oxygen and propane addition was the most viable in situ NDMA mineralization strategy.

Szecsody, James E.; McKinley, James P.; Breshears, Andrew T.; Crocker, Fiona H.

2008-10-14T23:59:59.000Z

277

Unified Analytical Solution for Radial Flow to a Well in a Confined Aquifer  

E-Print Network (OSTI)

Drawdowns generated by extracting water from a large diameter (e.g. water supply) well are affected by wellbore storage. We present an analytical solution in Laplace transformed space for drawdown in a uniform anisotropic aquifer caused by withdrawing water at a constant rate from a partially penetrating well with storage. The solution is back transformed into the time domain numerically. When the pumping well is fully penetrating our solution reduces to that of Papadopulos and Cooper [1967]; Hantush [1964] when the pumping well has no wellbore storage; Theis [1935] when both conditions are fulfilled and Yang et.al. [2006] when the pumping well is partially penetrating, has finite radius but lacks storage. We use our solution to explore graphically the effects of partial penetration, wellbore storage and anisotropy on time evolutions of drawdown in the pumping well and in observation wells.

Phoolendra Kumar Mishra; Velimir V. Vesselinov

2011-10-26T23:59:59.000Z

278

Unified Analytical Solution for Radial Flow to a Well in a Confined Aquifer  

E-Print Network (OSTI)

Drawdowns generated by extracting water from a large diameter (e.g. water supply) well are affected by wellbore storage. We present an analytical solution in Laplace transformed space for drawdown in a uniform anisotropic aquifer caused by withdrawing water at a constant rate from a partially penetrating well with storage. The solution is back transformed into the time domain numerically. When the pumping well is fully penetrating our solution reduces to that of Papadopulos and Cooper [1967]; Hantush [1964] when the pumping well has no wellbore storage; Theis [1935] when both conditions are fulfilled and Yang et.al. [2006] when the pumping well is partially penetrating, has finite radius but lacks storage. We use our solution to explore graphically the effects of partial penetration, wellbore storage and anisotropy on time evolutions of drawdown in the pumping well and in observation wells.

Mishra, Phoolendra Kumar

2011-01-01T23:59:59.000Z

279

Problems of trace-element ratios and geothermometry in a gravel geothermal-aquifer system  

DOE Green Energy (OSTI)

The system studied is a Tertiary-age, block-faulted basin in which a Pleistocene gravel bed acts as a confined aquifer and permits the lateral dispersion of the geothermal fluids. Vertical movement of the hot water is currently believed to be controlled by faults on the east side of the valley. An aerial magnetic anomaly and a Bouguer gravity anomaly appear to correspond with thoese eastern faults. Basic data on the geology and trace element halos has been presented previously. Evaluation of the mixing phenomena in this system was attempted using a dissolved silica-enthalpy graph. A chalcedony curve is also plotted. An enthalpy versus chloride plot, suggests that either conductive cooling occurs before mixing or that higher chloride content background waters are available for mixing. (MHR)

Sonderegger, J.L.; Donovan, J.J.

1982-01-01T23:59:59.000Z

280

Data-collection instrumentation and interpretation for geopressured aquifer well tests  

DOE Green Energy (OSTI)

The Wells of Opportunity program funded by the Department of Energy, sought to determine the amount of natural gas and thermal energy entrained in geopressured, geothermal aquifers of the Texas and Louisiana Gulf Coast fairways. This determination was made by bringing representative wells onto production for periods long enough to ascertain such characteristics as temperature, gas/brine ratio, reservoir boundaries and permeabilities. During testing, amounts of produced gas and brine were carefully monitored through a computer controlled instrumentation station, which provided reliable and precise indications of the amounts of recoverable gas being produced from the reservoir. A data collection system was designed to be integrated into the surface test equipment to provide real-time control and data compilation during the well tests. Strip chart records provided real-time control information during the test. All pressures, both differential pressures, brine and gas temperatures, and sand detector signals were displayed, and the physical records were maintained for interpretation of well performance. The data collection system coupled with the interpretation software permitted gas/brine ratio to be determined with accuracy of five percent for values as low as 0.02 MCF/STB. In addition, graphical representation of well performance, brine flow rates, gas production, pressure histories, etc., could be made as the test progressed. Data system reliability was very high. Downtime was minimal even under relatively harsh environmental conditions for electronic equipment. This data collection system, while designed initially for geopressured aquifers, is adaptable to the automated collection of scientific and engineering information for the interpretation of well tests of other petroleum resources.

Rose, R.E.; Doherty, M.G.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Effect of immiscible liquid contaminants on P-wave transmission through natural aquifer samples  

SciTech Connect

We performed core-scale laboratory experiments to examine the effect of non-aqueous phase liquid (NAPL) contaminants on P-wave velocity and attenuation in heterogeneous media. This work is part of a larger project to develop crosswell seismic methods for minimally invasive NAPL detection. The test site is the former DOE Pinellas Plant in Florida, which has known NAPL contamination in the surficial aquifer. Field measurements revealed a zone of anomalously high seismic attenuation, which may be due to lithology and/or contaminants (NAPL or gas phase). Intact core was obtained from the field site, and P-wave transmission was measured by the pulse-transmission technique with a 500 kHz transducer. Two types of samples were tested: a clean fine sand from the upper portion of the surficial aquifer, and clayey-silty sand with shell fragments and phosphate nodules from the lower portion. Either NAPL trichloroethene or toluene was injected into the initially water-saturated sample. Maximum NAPL saturations ranged from 30 to 50% of the pore space. P-wave velocity varied by approximately 4% among the water-saturated samples, while velocities decreased by 5 to 9% in samples at maximum NAPL saturation compared to water-saturated conditions. The clay and silt fraction as well as the larger scatterers in the clayey-silty sands apparently caused greater P-wave attenuation compared to the clean sand. The presence of NAPLs caused a 34 to 54% decrease in amplitudes of the first arrival. The central frequency of the transmitted energy ranged from 85 to 200 kHz, and was sensitive to both grain texture and presence of NAPL. The results are consistent with previous trends observed in homogeneous sand packs. More data will be acquired to interpret P-wave tomograms from crosswell field measurements, determine the cause of high attenuation observed in the field data and evaluate the sensitivity of seismic methods for NAPL detection.

Geller, Jil T.; Ajo-Franklin, Jonathan B.; Majer, Ernest L.

2003-01-31T23:59:59.000Z

282

Stability Behavior and Thermodynamic States of Iron and Manganese in Sandy Soil Aquifer, Manukan Island, Malaysia  

Science Conference Proceedings (OSTI)

A total of 20 soil samples were collected from 10 boreholes constructed in the low lying area, which included ancillary samples taken from the high elevation area. Redox processes were investigated in the soil as well as groundwater in the shallow groundwater aquifer of Manukan Island, Sabah, Malaysia. Groundwater samples (n = 10) from each boreholes were also collected in the low lying area to understand the concentrations and behaviors of Fe and Mn in the dissolved state. This study strives to obtain a general understanding of the stability behaviors on Fe and Mn at the upper unsaturated and the lower-saturated soil horizons in the low lying area of Manukan Island as these elements usually play a major role in the redox chemistry of the shallow groundwater. Thermodynamic calculations using PHREEQC showed that the groundwater samples in the study area are oversaturated with respect to goethite, hematite, Fe(OH){sub 3} and undersaturated with respect to manganite and pyrochroite. Low concentrations of Fe and Mn in the groundwater might be probably due to the lack of minerals of iron and manganese oxides, which exist in the sandy aquifer. In fact, high organic matters that present in the unsaturated horizon are believed to be responsible for the high Mn content in the soil. It was observed that the soil samples collected from high elevation area (BK) comprises considerable amount of Fe in both unsaturated (6675.87 mg/kg) and saturated horizons (31440.49 mg/kg) compared to the low Fe content in the low lying area. Based on the stability diagram, the groundwater composition lies within the stability field for Mn{sup 2+} and Fe{sup 2+} under suboxic condition and very close to the FeS/Fe{sup 2+} stability boundary. This study also shows that both pH and Eh values comprise a strong negative value thus suggesting that the redox potential is inversely dependent on the changes of pH.

Lin, Chin Yik, E-mail: cy_lin_ars@hotmail.com [Universiti Malaysia Sabah, School of Science and Technology (Malaysia); Abdullah, Mohd. Harun [Universiti Malaysia Sabah, Water Research Unit, School of Science and Technology (Malaysia); Musta, Baba; Praveena, Sarva Mangala [Universiti Malaysia Sabah, School of Science and Technology (Malaysia); Aris, Ahmad Zaharin [Universiti Putra Malaysia, Faculty of Environmental Studies (Malaysia)

2011-03-15T23:59:59.000Z

283

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sumner Co, KS Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate Regional CO2 Sequestration Potential of Ozark Plateau Aquifer System,...

284

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wichita, KS Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate Regional CO2 Sequestration Potential of Ozark Plateau Aquifer System, South-Central...

285

Upper-Ocean Salinity Variability in the Tropical Pacific: Case Study for Quasi-Decadal Shift during the 2000s Using TRITON Buoys and Argo Floats  

Science Conference Proceedings (OSTI)

Upper-ocean salinity variation in the tropical Pacific is investigated during the 2000s, when TRITON buoys and Argo floats were deployed and more salinity data were observed than in previous periods. We focus on upper-ocean salinity variability ...

Takuya Hasegawa; Kentaro Ando; Iwao Ueki; Keisuke Mizuno; Shigeki Hosoda

286

SALINITY AND SODICITY INTERACTIONS OF WEATHERED MINESOILS IN NORTHWESTERN NEW MEXICO AND NORTH EASTERN ARIZONA  

SciTech Connect

Weathering characteristics of minesoils and rooting patterns of key shrub and grass species were evaluated at sites reclaimed for 6 to 14 years from three surface coal mine operations in northwestern New Mexico and northeastern Arizona. Non-weathered minesoils were grouped into 11 classifications based on electrical conductivity (EC) and sodium adsorption ratio (SAR). Comparisons of saturated paste extracts, from non-weathered and weathered minesoils show significant (p < 0.05) reductions in SAR levels and increased EC. Weathering increased the apparent stability of saline and sodic minesoils thereby reducing concerns of aggregate slaking and clay particle dispersion. Root density of four-wing saltbush (Atriplex canascens), alkali sacaton (Sporobolus airoides), and Russian wildrye (Psathyrostachys junceus) were nominally affected by increasing EC and SAR levels in minesoil. Results suggest that saline and sodic minesoils can be successfully reclaimed when covered with topsoil and seeded with salt tolerant plant species.

Brent Musslewhite; Song Jin

2006-05-01T23:59:59.000Z

287

Process for producing modified microorganisms for oil treatment at high temperatures, pressures and salinity  

DOE Patents (OSTI)

This invention relates to the preparation of new, modified organisms, through challenge growth processes, that are viable in the extreme temperature, pressure and pH conditions and salt concentrations of an oil reservoir and that are suitable for use in microbial enhanced oil recovery. The modified microorganisms of the present invention are used to enhance oil recovery and remove sulfur compounds and metals from the crude oil. The processes are comprised of steps which successively limit the carbon sources and increase the temperature, pressure and salinity of the media. This is done until microbial strains are obtained that are capable of growing in essentially crude oil as a carbon source and at a temperature range from about 70.degree. C. to 90.degree. C., at a pressure range from about 2,000 to 2,500 psi and at a salinity range from about 1.3 to 35%.

Premuzic, Eugene T. (East Moriches, NY); Lin, Mow (Rocky Point, NY)

1996-02-20T23:59:59.000Z

288

Process for producing modified microorganisms for oil treatment at high temperatures, pressures and salinity  

DOE Patents (OSTI)

This invention relates to the preparation of new, modified organisms, through challenge growth processes, that are viable in the extreme temperature, pressure and pH conditions and salt concentrations of an oil reservoir and that are suitable for use in microbial enhanced oil recovery. The modified microorganisms of the present invention are used to enhance oil recovery and remove sulfur compounds and metals from the crude oil. The processes are comprised of steps which successively limit the carbon sources and increase the temperature, pressure and salinity of the media. This is done until microbial strains are obtained that are capable of growing in essentially crude oil as a carbon source and at a temperature range from about 70 C to 90 C, at a pressure range from about 2,000 to 2,500 psi and at a salinity range from about 1.3 to 35%. 68 figs.

Premuzic, E.T.; Lin, M.

1996-02-20T23:59:59.000Z

289

Oil Recovery Increases by Low-Salinity Flooding: Minnelusa and Green River Formations  

Science Conference Proceedings (OSTI)

Waterflooding is by far the most widely used method in the world to increase oil recovery. Historically, little consideration has been given in reservoir engineering practice to the effect of injection brine composition on waterflood displacement efficiency or to the possibility of increased oil recovery through manipulation of the composition of the injected water. However, recent work has shown that oil recovery can be significantly increased by modifying the injection brine chemistry or by injecting diluted or low salinity brine. This paper reports on laboratory work done to increase the understanding of improved oil recovery by waterflooding with low salinity injection water. Porous media used in the studies included outcrop Berea sandstone (Ohio, U.S.A.) and reservoir cores from the Green River formation of the Uinta basin (Utah, U.S.A.). Crude oils used in the experimental protocols were taken from the Minnelusa formation of the Powder River basin (Wyoming, U.S.A.) and from the Green River formation, Monument Butte field in the Uinta basin. Laboratory corefloods using Berea sandstone, Minnelusa crude oil, and simulated Minnelusa formation water found a significant relationship between the temperature at which the oil- and water-saturated cores were aged and the oil recovery resulting from low salinity waterflooding. Lower aging temperatures resulted in very little to no additional oil recovery, while cores aged at higher temperatures resulted in significantly higher recoveries from dilute-water floods. Waterflood studies using reservoir cores and fluids from the Green River formation of the Monument Butte field also showed significantly higher oil recoveries from low salinity waterfloods with cores flooded with fresher water recovering 12.4% more oil on average than those flooded with undiluted formation brine.

Eric P. Robertson

2010-09-01T23:59:59.000Z

290

Water geochemistry and hydrogeology of the shallow aquifer at Roosevelt Hot Springs, southern Utah: A hot dry rock prospect  

DOE Green Energy (OSTI)

On the western edge of the geothermal field, three deep holes have been drilled that are very hot but mostly dry. Two of them (Phillips 9-1 and Acord 1-26 wells) have been studied by Los Alamos National Laboratory for the Hot Dry Rock (HDR) resources evaluation program. A review of data and recommendations have been formulated to evaluate the HDR geothermal potential at Roosevelt. The present report is directed toward the study of the shallow aquifer of the Milford Valley to determine if the local groundwater would be suitable for use as make-up water in an HDR system. This investigation is the result of a cooperative agreement between Los Alamos and Phillips Petroleum Co., formerly the main operator of the Roosevelt Hot Springs Unit. The presence of these hot dry wells and the similar setting of the Roosevelt area to the prototype HDR site at Fenton Hill, New Mexico, make Roosevelt a very good candidate site for creation of another HDR geothermal system. This investigation has two main objectives: to assess the water geochemistry of the valley aquifer, to determine possible problems in future make-up water use, such as scaling or corrosion in the wells and surface piping, and to assess the hydrogeology of the shallow groundwaters above the HDR zone, to characterize the physical properties of the aquifer. These two objectives are linked by the fact that the valley aquifer is naturally contaminated by geothermal fluids leaking out of the hydrothermal reservoir. In an arid region where good-quality fresh water is needed for public water supply and irrigation, nonpotable waters would be ideal for an industrial use such as injection into an HDR energy extraction system. 50 refs., 10 figs., 10 tabs.

Vuataz, F.D.; Goff, F.

1987-12-01T23:59:59.000Z

291

Salinity variations and chemical compositions of waters in the Frio Formation, Texas Gulf Coast. Annual report  

DOE Green Energy (OSTI)

Waters produced from sandstone reservoirs of the deep Frio Formation exhibit spatial variations in chemical composition that roughly coincide with the major tectonic elements (Houston and Rio Grande Embayments, San Marcos Arch) and corresponding depositional systems (Houston and Norias deltas, Greta-Carancahua barrier/strandplain system) that were respectively active along the upper, lower, and middle Texas Coast during Frio deposition. Within an area, salinities are usually depth dependent, and primary trends closely correspond to pore pressure gradients and thermal gradients. Where data are available (mainly in Brazoria County) the increases in TDS and calcium with depth coincide with the zone of albitization, smectite-illite transition, and calcite decrease in shales. Waters have fairly uniform salinities when produced from the same sandstone reservoir within a fault block or adjacent fault blocks with minor displacement. In contrast, stratigraphically equivalent sandstones separated by faults with large displacement usually yield waters with substantially different salinities owing to the markedly different thermal and pressure gradients across the faults that act as barriers to fluid movement.

Morton, R.A.; Garrett, C.M. Jr.; Posey, J.S.; Han, J.H.; Jirik, L.A.

1981-11-01T23:59:59.000Z

292

University of Minnesota aquifer thermal energy storage (ATES) project report on the second long-term cycle  

DOE Green Energy (OSTI)

The technical feasibility of high-temperature [>100{degrees}C (>212{degrees}F)] aquifer thermal energy storage (ATES) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota`s St. Paul field test facility (FTF). This report describes the second long-term cycle (LT2), which was conducted from October 1986 through April 1987. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic effects are reported. Approximately 61% of the 9.21 GWh of energy added to the 9.38 {times} 10{sup 4} m{sup 3} of ground water stored during LT2 was recovered. Temperatures of the water stored and recovered averaged 118{degrees}C (244{degrees}F) and 85{degrees}C (185{degrees}F), respectively. Results agreed with previous cycles conducted at the FTF. System operation during LT2 was nearly as planned. Operational experience from previous cycles at the FTF was extremely helpful. Ion-exchange softening of the heated and stored aquifer water prevented scaling in the system heat exchangers and the storage well, and changed the major-ion chemistry of the stored water. Sodium bicarbonate replaced magnesium and calcium bicarbonate as primary ions in the softened water. Water recovered form storage was approximately at equilibrium with respect to dissolved ions. Silica, calcium, and magnesium were significantly higher in recovered water than in injected water. Sodium was significantly lower in water recovered than in water stored.

Hoyer, M.C.; Hallgren, J.P.; Lauer, J.L.; Walton, M.; Eisenreich, S.J.; Howe, J.T.; Splettstoesser, J.F. [Minnesota Geological Survey, St. Paul, MN (United States)

1991-12-01T23:59:59.000Z

293

University of Minnesota aquifer thermal energy storage (ATES) project report on the second long-term cycle  

DOE Green Energy (OSTI)

The technical feasibility of high-temperature (>100{degrees}C (>212{degrees}F)) aquifer thermal energy storage (ATES) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota's St. Paul field test facility (FTF). This report describes the second long-term cycle (LT2), which was conducted from October 1986 through April 1987. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic effects are reported. Approximately 61% of the 9.21 GWh of energy added to the 9.38 {times} 10{sup 4} m{sup 3} of ground water stored during LT2 was recovered. Temperatures of the water stored and recovered averaged 118{degrees}C (244{degrees}F) and 85{degrees}C (185{degrees}F), respectively. Results agreed with previous cycles conducted at the FTF. System operation during LT2 was nearly as planned. Operational experience from previous cycles at the FTF was extremely helpful. Ion-exchange softening of the heated and stored aquifer water prevented scaling in the system heat exchangers and the storage well, and changed the major-ion chemistry of the stored water. Sodium bicarbonate replaced magnesium and calcium bicarbonate as primary ions in the softened water. Water recovered form storage was approximately at equilibrium with respect to dissolved ions. Silica, calcium, and magnesium were significantly higher in recovered water than in injected water. Sodium was significantly lower in water recovered than in water stored.

Hoyer, M.C.; Hallgren, J.P.; Lauer, J.L.; Walton, M.; Eisenreich, S.J.; Howe, J.T.; Splettstoesser, J.F. (Minnesota Geological Survey, St. Paul, MN (United States))

1991-12-01T23:59:59.000Z

294

Design, performance, and analysis of an aquifer thermal-energy-storage experiment using the doublet-well configuration  

DOE Green Energy (OSTI)

In March 1980 Auburn University began series of aquifer thermal energy storage (ATES) experiments using the doublet well configuration. The test site was in Mobile, Alabama. The objectives of the three experimental cycles were to demonstrate the technical feasibility of the ATES concept, to identify and resolve operational problems, and to acquire a data base for developing and testing mathematical models. Pre-injection tests were performed and analyses of hydraulic, geochemical, and thermodynamic data were completed. Three injection-storage-recovery cycles had injection volumes of 25,402 m/sup 3/, 58,010 m/sup 3/, and 58,680 m/sup 3/ and average injection temperatures of 58.5/sup 0/C, 81.0/sup 0/C, and 79.0/sup 0/C, respectively. The first cycle injection began in February 1981 and the third cycle recovery was completed in November 1982. Attributable to the doublet well configuration no clogging of injection wells occurred. Energy recovery percentages based on recovery volumes equal to the injection volumes were 56, 45, and 42%. Thermal convection effects were observed. Aquifer nonhomogeneity, not detectable using standard aquifer testing procedures, was shown to reduce recovery efficiency.

Molz, F.J.; Melville, J.G.; Gueven, O.; Parr, A.D.

1983-09-01T23:59:59.000Z

295

Applications of Ensemble-based Data Assimilation Techniques for Aquifer Characterization using Tracer Data at Hanford 300 Area  

SciTech Connect

Subsurface aquifer characterization often involves high parameter dimensionality and requires tremendous computational resources if employing a full Bayesian approach. Ensemble-based data assimilation techniques, including filtering and smoothing, are computationally efficient alternatives. Despite the increasing number of applications of ensemble-based methods in assimilating flow and transport related data for subsurface aquifer charaterization, most are limited to either synthetic studies or two-dimensional problems. In this study, we applied ensemble-based techniques for assimilating field tracer experimental data obtained from the Integrated Field Research Challenge (IFRC) site at the Hanford 300 Area. The forward problem was simulated using the massively-parallel three-dimensional flow and transport code PFLOTRAN to effectively deal with the highly transient flow boundary conditions at the site and to meet the computational demands of ensemble-based methods. This study demonstrates the effectiveness of ensemble-based methods for characterizing a heterogeneous aquifer by sequentially assimilating multiple types of data. The necessity of employing high performance computing is shown to enable increasingly mechanistic non-linear forward simulations to be performed within the data assimilation framework for a complex system with reasonable turnaround time.

Chen, Xingyuan; Hammond, Glenn E.; Murray, Christopher J.; Rockhold, Mark L.; Vermeul, Vincent R.; Zachara, John M.

2013-10-31T23:59:59.000Z

296

Optimal Surface Salinity Perturbations of the Meridional Overturning and Heat Transport in a Global Ocean General Circulation Model  

Science Conference Proceedings (OSTI)

Recent observations and modeling studies have stressed the influence of surface salinity perturbations on the North Atlantic circulation over the past few decades. As a step toward the estimation of the sensitivity of the thermohaline circulation ...

Florian Svellec; Thierry Huck; Mahdi Ben Jelloul; Nicolas Grima; Jrme Vialard; Anthony Weaver

2008-12-01T23:59:59.000Z

297

Development and Analysis of the Systematically Merged Atlantic Regional Temperature and Salinity Climatology For Oceanic Heat Content Estimates  

Science Conference Proceedings (OSTI)

An oceanic climatology to calculate upper ocean thermal structure was developed for application year-round in the North Atlantic Ocean basin. The Systematically Merged Atlantic Regional Temperature and Salinity (SMARTS) Climatology is used in a ...

P. C. Meyers; L. K. Shay; J. K. Brewster

298

Incorporating State-Dependent TemperatureSalinity Constraints in the Background Error Covariance of Variational Ocean Data Assimilation  

Science Conference Proceedings (OSTI)

Several studies have illustrated how the univariate assimilation of temperature data can have a detrimental effect on the ocean-state variables (salinity, currents, etc.) not directly constrained by the data. In this paper, the authors describe ...

S. Ricci; A. T. Weaver; J. Vialard; P. Rogel

2005-01-01T23:59:59.000Z

299

Real Freshwater Flux as a Natural Boundary Condition for the Salinity Balance and Thermohaline Circulation Forced by Evaporation and Precipitation  

Science Conference Proceedings (OSTI)

Freshwater flux used as a natural boundary condition for the salinity balance is applied to a primitive equation model of the oceanic general circulation. Instead of the relaxation condition or the virtual salt flux boundary conditions used in ...

Rui Xin Huang

1993-11-01T23:59:59.000Z

300

Large-Scale Atlantic Salinity Changes over the Last Half-Century: A ModelObservation Comparison  

Science Conference Proceedings (OSTI)

Large-scale freshening of the northern Atlantic, and concurrent salinity increases in the low-latitude Atlantic upper layers, have been widely reported for the second half of the twentieth century. The role of anthropogenic and/or unforced ...

Anne Pardaens; Michael Vellinga; Peili Wu; Bruce Ingleby

2008-04-01T23:59:59.000Z

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301

Vertical Variability of Near-Surface Salinity in the Tropics: Consequences for L-Band Radiometer Calibration and Validation  

Science Conference Proceedings (OSTI)

Two satellite missions are planned to be launched in the next two years; the European Space Agency (ESA) Soil Moisture and Ocean Salinity (SMOS) and the National Aeronautics and Space Administration (NASA) Aquarius missions aim at detecting sea ...

Claire Henocq; Jacqueline Boutin; Gilles Reverdin; Franois Petitcolin; Sabine Arnault; Philippe Lattes

2010-01-01T23:59:59.000Z

302

Storing carbon dioxide in saline formations : analyzing extracted water treatment and use for power plant cooling.  

SciTech Connect

In an effort to address the potential to scale up of carbon dioxide (CO{sub 2}) capture and sequestration in the United States saline formations, an assessment model is being developed using a national database and modeling tool. This tool builds upon the existing NatCarb database as well as supplemental geological information to address scale up potential for carbon dioxide storage within these formations. The focus of the assessment model is to specifically address the question, 'Where are opportunities to couple CO{sub 2} storage and extracted water use for existing and expanding power plants, and what are the economic impacts of these systems relative to traditional power systems?' Initial findings indicate that approximately less than 20% of all the existing complete saline formation well data points meet the working criteria for combined CO{sub 2} storage and extracted water treatment systems. The initial results of the analysis indicate that less than 20% of all the existing complete saline formation well data may meet the working depth, salinity and formation intersecting criteria. These results were taken from examining updated NatCarb data. This finding, while just an initial result, suggests that the combined use of saline formations for CO{sub 2} storage and extracted water use may be limited by the selection criteria chosen. A second preliminary finding of the analysis suggests that some of the necessary data required for this analysis is not present in all of the NatCarb records. This type of analysis represents the beginning of the larger, in depth study for all existing coal and natural gas power plants and saline formations in the U.S. for the purpose of potential CO{sub 2} storage and water reuse for supplemental cooling. Additionally, this allows for potential policy insight when understanding the difficult nature of combined potential institutional (regulatory) and physical (engineered geological sequestration and extracted water system) constraints across the United States. Finally, a representative scenario for a 1,800 MW subcritical coal fired power plant (amongst other types including supercritical coal, integrated gasification combined cycle, natural gas turbine and natural gas combined cycle) can look to existing and new carbon capture, transportation, compression and sequestration technologies along with a suite of extracting and treating technologies for water to assess the system's overall physical and economic viability. Thus, this particular plant, with 90% capture, will reduce the net emissions of CO{sub 2} (original less the amount of energy and hence CO{sub 2} emissions required to power the carbon capture water treatment systems) less than 90%, and its water demands will increase by approximately 50%. These systems may increase the plant's LCOE by approximately 50% or more. This representative example suggests that scaling up these CO{sub 2} capture and sequestration technologies to many plants throughout the country could increase the water demands substantially at the regional, and possibly national level. These scenarios for all power plants and saline formations throughout U.S. can incorporate new information as it becomes available for potential new plant build out planning.

Dwyer, Brian P.; Heath, Jason E.; Borns, David James; Dewers, Thomas A.; Kobos, Peter Holmes; Roach, Jesse D.; McNemar, Andrea; Krumhansl, James Lee; Klise, Geoffrey T.

2010-10-01T23:59:59.000Z

303

Analysis of three geopressured geothermal aquifer-natural gas fields; Duson Hollywood and Church Point, Louisiana  

DOE Green Energy (OSTI)

The available well logs, production records and geological structure maps were analyzed for the Hollywood, Duson, and Church Point, Louisiana oil and gas field to determine the areal extent of the sealed geopressured blocks and to identify which aquifer sands within the blocks are connected to commercial production of hydrocarbons. The analysis showed that over the depth intervals of the geopressured zones shown on the logs essentially all of the sands of any substantial thickness had gas production from them somewhere or other in the fault block. It is therefore expected that the sands which are fully brine saturated in many of the wells are the water drive portion of the producing gas/oil somewhere else within the fault block. In this study only one deep sand was identified, in the Hollywood field, which was not connected to a producing horizon somewhere else in the field. Estimates of the reservoir parameters were made and a hypothetical production calculation showed the probable production to be less than 10,000 b/d. The required gas price to profitably produce this gas is well above the current market price.

Rogers, L.A.; Boardman, C.R.

1981-05-01T23:59:59.000Z

304

Challenges Associated with Apatite Remediation of Uranium in the 300 Area Aquifer  

SciTech Connect

Sequestration of uranium as insoluble phosphate phases appears to be a promising alternative for treating the uranium-contaminated groundwater at the Hanford 300 Area. The proposed approach involves both the direct formation of autunite by the application of a polyphosphate mixture, as well as the formation of apatite in the aquifer as a continuing source of phosphate for long-term treatment of uranium. After a series of bench-scale tests, a field treatability test was conducted in a well at the 300 Area. The objective of the treatability test was to evaluate the efficacy of using polyphosphate injections to treat uranium-contaminated groundwater in situ. A test site consisting of an injection well and 15 monitoring wells was installed in the 300 Area near the process trenches that had previously received uranium-bearing effluents. The results indicated that while the direct formation of autunite appears to have been successful, the outcome of the apatite formation of the test was more limited. Two separate overarching issues impact the efficacy of apatite remediation for uranium sequestration within the 300 Area: 1) the efficacy of apatite for sequestering uranium under the present geochemical and hydrodynamic conditions, and 2) the formation and emplacement of apatite via polyphosphate technology. This paper summarizes these issues.

Wellman, Dawn M.; Fruchter, Jonathan S.; Vermeul, Vincent R.; Williams, Mark D.

2008-05-01T23:59:59.000Z

305

Mobilization of trace elements in aquifers by biodegradation of hydrocarbon contaminants. Master Thesis  

Science Conference Proceedings (OSTI)

This study had two objectives: (1) to determine the extent of metal mobility within petroleum-contaminated aquifers, (2) to determine if biodegradation of petroleum hydrocarbons can explain metal mobility. The approach reviewed analytical results from 2305 groundwater sampling events, taken from 958 wells, located at 136 sites found at 53 Air Force installations. The study showed that high levels of metals are present at petroleum hydrocarbon sites where metals would not generally be expected. Of the metals with drinking water maximum contaminant levels (MCLs), mercury and silver were detected the least frequently. Barium and copper were detected at the sites, but fewer than 2.5 percent of the samples exceeded their MCLs. All other metals exceeded their MCLs in at least 2.5 percent of the samples, with antimony and lead exceeding their MCLs in 19 percent and 10 percent of samples, respectively. Higher concentrations of barium and manganese were most strongly correlated with petroleum hydrocarbon contamination, and relatively strong correlations also existed for aluminum, arsenic, iron, and lead. Major cations such as calcium, magnesium, sodium and potassium were least affected by petroleum hydrocarbons concentrations.

Kearney, S.L.

1997-12-01T23:59:59.000Z

306

Utility of Bromide and Heat Tracers for Aquifer Characterization Affected by Highly Transient Flow Conditions  

SciTech Connect

A tracer test using both bromide and heat tracers conducted at the Integrated Field Research Challenge site in Hanford 300 Area (300A), Washington, provided an instrument for evaluating the utility of bromide and heat tracers for aquifer characterization. The bromide tracer data were critical to improving the calibration of the flow model complicated by the highly dynamic nature of the flow field. However, most bromide concentrations were obtained from fully screened observation wells, lacking depth-specific resolution for vertical characterization. On the other hand, depth-specific temperature data were relatively simple and inexpensive to acquire. However, temperature-driven fluid density effects influenced heat plume movement. Moreover, the temperature data contained noise caused by heating during fluid injection and sampling events. Using the hydraulic conductivity distribution obtained from the calibration of the bromide transport model, the temperature depth profiles and arrival times of temperature peaks simulated by the heat transport model were in reasonable agreement with observations. This suggested that heat can be used as a cost-effective proxy for solute tracers for calibration of the hydraulic conductivity distribution, especially in the vertical direction. However, a heat tracer test must be carefully designed and executed to minimize fluid density effects and sources of noise in temperature data. A sensitivity analysis also revealed that heat transport was most sensitive to hydraulic conductivity and porosity, less sensitive to thermal distribution factor, and least sensitive to thermal dispersion and heat conduction. This indicated that the hydraulic conductivity remains the primary calibration parameter for heat transport.

Ma, Rui; Zheng, Chunmiao; Zachara, John M.; Tonkin, Matthew J.

2012-08-29T23:59:59.000Z

307

Underground hydrogen storage. Final report. [Salt caverns, excavated caverns, aquifers and depleted fields  

DOE Green Energy (OSTI)

The technical and economic feasibility of storing hydrogen in underground storage reservoirs is evaluated. The past and present technology of storing gases, primarily natural gas is reviewed. Four types of reservoirs are examined: salt caverns, excavated caverns, aquifers, and depleted fields. A technical investigation of hydrogen properties reveals that only hydrogen embrittlement places a limit on the underground storage by hydrogen. This constraint will limit reservoir pressures to 1200 psi or less. A model was developed to determine economic feasibility. After making reasonable assumptions that a utility might make in determining whether to proceed with a new storage operation, the model was tested and verified on natural gas storage. A parameteric analysis was made on some of the input parameters of the model to determine the sensitivity of the cost of service to them. Once the model was verified it was used to compute the cost of service of storing hydrogen in the four reservoir types. The costs of service for hydrogen storage ranged from 26 to 150% of the cost of the gas stored. The study concludes that it is now both safe and economic to store hydrogen in underground reservoirs.

Foh, S.; Novil, M.; Rockar, E.; Randolph, P.

1979-12-01T23:59:59.000Z

308

Site-specific investigations of aquifer thermal energy storage for space and process cooling  

Science Conference Proceedings (OSTI)

The Pacific Northwest Laboratory (PNL) has completed three preliminary site-specific feasibility studies that investigated using aquifer thermal energy storage (ATES) to reduce space and process cooling costs. Chilled water stored in an ATES system could be used to meet all or part of the process and/or space cooling loads at the three facilities investigated. The work was sponsored by the US Department of Energy's (DOE) Office of Energy Management. The ultimate goal of DOE's Thermal Energy Storage Program is to successfully transfer ATES technology to industrial and commercial sectors. The primary objective of this study was to identify prospective sites and determine the technical and economic feasibility of implementing chill ATES technology. A secondary objective was to identify site-specific factors promoting or inhibiting the application of chill ATES technology so that other potentially attractive sites could be more easily identified and evaluated. A preliminary investigation of the feasibility of commercializing chill ATES in automotive assembly facilities was completed. The results suggested that automotive assembly facilities was completed. The results suggested that automotive assembly facilities represent a good entry market for chill ATES, if the system is cost-effective. As a result, this study was undertaken to identify and evaluate prospective chill ATES applications in the automotive industry. The balance of the report contains two main sections. Section 2.0 describes the site identification process. Site feasibility is addressed in Section 3.0. Overall study conclusions and recommendations are than presented in Section 4.0.

Brown, D R; Hattrup, M P; Watts, R L

1991-08-01T23:59:59.000Z

309

Analysis of Fault Permeability Using Mapping and Flow Modeling, Hickory Sandstone Aquifer, Central Texas  

Science Conference Proceedings (OSTI)

Reservoir compartments, typical targets for infill well locations, are commonly created by faults that may reduce permeability. A narrow fault may consist of a complex assemblage of deformation elements that result in spatially variable and anisotropic permeabilities. We report on the permeability structure of a km-scale fault sampled through drilling a faulted siliciclastic aquifer in central Texas. Probe and whole-core permeabilities, serial CAT scans, and textural and structural data from the selected core samples are used to understand permeability structure of fault zones and develop predictive models of fault zone permeability. Using numerical flow simulation, it is possible to predict permeability anisotropy associated with faults and evaluate the effect of individual deformation elements in the overall permeability tensor. We found relationships between the permeability of the host rock and those of the highly deformed (HD) fault-elements according to the fault throw. The lateral continuity and predictable permeability of the HD fault elements enhance capability for estimating the effects of subseismic faulting on fluid flow in low-shale reservoirs.

Nieto Camargo, Jorge E., E-mail: jorge.nietocamargo@aramco.com; Jensen, Jerry L., E-mail: jjensen@ucalgary.ca [University of Calgary, Department of Chemical and Petroleum Engineering (Canada)

2012-09-15T23:59:59.000Z

310

Remediating explosive-contaminated groundwater by in situ redox manipulation (ISRM) of aquifer sediments  

Science Conference Proceedings (OSTI)

In situ chemical reduction of clays and iron oxides in subsurface environments is an emerging technology for treatment of contaminated groundwater. Our objective was to determine the efficacy of dithionite-reduced sediments from the perched Pantex Aquifer (Amarillo, TX) to abiotically degrade the explosives RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine), HMX (octahydro-1,3,5,7-tetranitro- 1,3,5,7-tetrazocine), and TNT (2,4,6-trinitrotoluene). The effects of dithionite/buffer concentrations, sediments-solution ratios, and the contribution of Fe(II) were evaluated in batch experiments. Results showed that reduced Pantex sediments were highly effective in degrading all three high explosives. Degradation rates increased with increasing dithionite/buffer concentrations and soil to solution ratios (1:801:10 w/v). When Fe(II) was partially removed from the reduced sediments by washing (citrate-bicarbonate buffer), RDX degradation slowed, but degradation efficiency could be restored by adding Fe(II) back to the treated sediments and maintaining an alkaline pH. These data support in situ redox manipulation as a remedial option for treating explosive-contaminated groundwater at the Pantex site.

Boparai, Hardiljeet K.; Comfort, Steve; Shea, Phyllis J.; Szecsody, James E.

2008-03-01T23:59:59.000Z

311

Guidelines for conceptual design and evaluation of aquifer thermal energy storage  

DOE Green Energy (OSTI)

Guidelines are presented for use as a tool by those considering application of a new technology, aquifer thermal energy storage (ATES). The guidelines will assist utilities, municipalities, industries, and other entities in the conceptual design and evaluation of systems employing ATES. The potential benefits of ATES are described, an overview is presented of the technology and its applications, and rules of thumb are provided for quickly judging whether a proposed project has sufficient promise to warrant detailed conceptual design and evaluation. The characteristics of sources and end uses of heat and chill which are seasonally mismatched and may benefit from ATES (industrial waste heat, cogeneration, solar heat, and winter chill, for space heating and air conditioning) are discussed. Storage and transport subsystems and their expected performance and cost are described. A 10-step methodology is presented for conceptual design of an ATES system and evaluation of its technical and economic feasibility in terms of energy conservation, cost savings, fuel substitution, improved dependability of supply, and abatement of pollution, with examples, and the methodology is applied to a hypothetical proposed ATES system, to illustrate its use.

Meyer, C.F.; Hauz, W.

1980-10-01T23:59:59.000Z

312

Time-lapse crosswell seismic and VSP monitoring of injected CO2 ina brine aquifer  

SciTech Connect

Seismic surveys successfully imaged a small scale C02injection (1,600 tons) conducted in a brine aquifer of the Frio Formationnear Houston, Texas. These time-lapse bore-hole seismic surveys,crosswell and vertical seismic profile (VSP), were acquired to monitorthe C02 distribution using two boreholes (the new injection well and apre-existing well used for monitoring) which are 30 m apart at a depth of1500 m. The crosswell survey provided a high-resolution image of the C02distribution between the wells via tomographic imaging of the P-wavevelocity decrease (up to 500 mls). The simultaneously acquired S-wavetomography showed little change in S-wave velocity, as expected for fluidsubstitution. A rock physics model was used to estimate C02 saturationsof 10-20 percent from the P-wave velocity change. The VSP survey resolveda large (-70 percent) change in reflection amplitude for the Friohorizon. This C02 induced reflection amplitude change allowed estimationof the C02 extent beyond the monitor well and on 3 azimuths. The VSPresult is compared with numerical modeling of C02 saturations and isseismically modeled using the velocity change estimated in the crosswellsurvey.

Daley, Thomas M.; Myer, Larry R.; Peterson, J.E.; Majer, E.L.; Hoversten,G.M.

2006-05-30T23:59:59.000Z

313

Guidelines for sampling and analyzing solutions from aquifer thermal-energy-storage systems  

DOE Green Energy (OSTI)

The successful aquifer storage and retrieval of energy in the form of heated or chilled water require that the engineered system be compatible with the natural ground-water system. The composition of the ground water must be well known to predict and avoid potential problems that heating or cooling the water may create for operation of the plant. This paper presents a set of guidelines for sampling and analyzing solutions from simulated or real groundwater energy storage systems. Sampling guidelines include methods for flushing wells of stagnant water and monitoring selective solution parameters (pH, Eh, temperature or conductivity) as indicators of the efficiency of flushing. Certain unstable groundwater parameters (temperature, pH, Eh, dissolved oxygen, and conductivity) should be measured onsite. It is recommended that alkalinity, sulfide, and ammonia determinations be done within 24 hr of sampling. In addition to these field measurements, samples of the ground water should be filtered, preserved, and stored for laboratory analysis of major cations, anions, trace metals, organic and inorganic carbon and certain redox couples (Fe/sup 2 +//Fe/sup 3 +/ and As/sup 3 +//As/sup 5 +/). The final results of the analysis should be verified by computing the cation-anion balance and comparing measured conductivity with the solution analysis.

Deutsch, W.J.

1982-09-01T23:59:59.000Z

314

Hydrogeochemical Modelling for Groundwater in Neyveli Aquifer, Tamil Nadu, India, Using PHREEQC: A Case Study  

SciTech Connect

Sophisticated geochemical models have been used to describe and predict the chemical behaviour of complex natural waters and also to protect the groundwater resources from future contamination. One such model is used to study the hydrogeochemical complexity in a mine area. Extraction of groundwater from the coastal aquifer has been in progress for decades to mine lignite in Neyveli. This extraction has developed a cone of depression around the mine site. This cone of depression is well established by the geochemical nature of groundwater in the region. 42 groundwater samples were collected in a definite pattern and they were analysed for major cations, anions and trace elements. The saturation index (SI) of the groundwater for carbonate, sulphate and silica minerals was studied and it has been correlated with the recharge and the discharge regions. The SI of alumino silicates has been used to decipher the stage of weathering. The SI{sub Gibbsite} - SI{sub K-feldspar} has been spatially distributed and the regions of discharge and recharge were identified. Then two flow paths A1 and A2 were identified and inverse modelling using PHREEQC were carried out to delineate the geochemical process that has taken place from recharge to discharge. The initial and final solutions in both the flow paths were correlated with the thermodynamic silicate stability diagrams of groundwater and it was found that the state of thermodynamic stability of the end solutions along the flow path were approaching similar states of equilibrium at the discharge.

Chidambaram, S.; Anandhan, P. [Annamalai University, Department of Earth Sciences (India); Prasanna, M. V., E-mail: geoprasanna@gmail.com [Curtin University, Department of Applied Geology, School of Engineering and Science (Malaysia); Ramanathan, AL. [Jawaharlal Nehru University, School of Environmental Sciences (India); Srinivasamoorthy, K. [Pondicherry University, Department of Earth Sciences, School of Physical, Chemical and Applied Sciences (India); Senthil Kumar, G. [HNB Garwhal University, Department of Geology (India)

2012-09-15T23:59:59.000Z

315

Continuous active-source seismic monitoring of CO2 injection in abrine aquifer  

SciTech Connect

Continuous crosswell seismic monitoring of a small-scale CO2injection was accomplished with the development of a noveltubing-deployed piezoelectric borehole source. This piezotube source wasdeployed on the CO2 injection tubing, near the top of the saline aquiferreservoir at 1657-m depth, and allowed acquisition of crosswellrecordings at 15-minute intervals during the multiday injection. Thechange in traveltime recorded at various depths in a nearby observationwell allowed hour-by-hour monitoring of the growing CO2 plume via theinduced seismic velocity change. Traveltime changes of 0.2 to 1.0 ms ( upto 8 percent ) were observed, with no change seen at control sensorsplaced above the reservoir. The traveltime measurements indicate that theCO2 plume reached the top of the reservoir sand before reaching theobservation well, where regular fluid sampling was occuring during theinjection, thus providing information about the in situ buoyancy ofCO2.

Daley, Thomas M.; Solbau, Ray D.; Ajo-Franklin, Jonathan B.; Benson, Sally M.

2006-12-10T23:59:59.000Z

316

Water Infiltration and Permeability of Selected Urban Soils as Affected by Salinity and Sodicity  

E-Print Network (OSTI)

Soil sodicity is known to affect soil structural stability and permeability. However, the impact differs depending on salinity of irrigation water, soil types as well as irrigation management practices. This study examined water infiltration into two alluvial soils (Torrifluvents), and two upland soils (Paleorthid and Calciorthid, Aridisols) placed in greenhouse pots. For the first experiment, irrigation solutions simulating the Rio Grande water, city potable water, and two sources of reclaimed water (EC of 1.4 and 2.2 dS m-1 and SAR of 6 and 11) were applied twice a week at 1.7 cm per application for a total of 27 irrigation events using 46 cm of water. No significant effect of water quality was detected in Delnorte gravelly loam (Paleorthid) and a small effect on infiltration into Harkey silt loam (Torrifluvent). However, the use of distilled water curtailed infiltration mainly in Harkey soil. In the second greenhouse experiment using a carefully crafted soil packing and water application protocols, the impact of water quality on infiltration into two Torrifluvents, Harkey silt loam and Glendale silty clay loam appeared after water application of 40 to 50 cm (16" - 20"). When saline solutions were applied as deep as 10 cm per application, the infiltration time nearly doubled when SAR of the solution increased from 1 to 6 or 12 in alluvial soils, but not in Turney silty clay loam (Calciorthid, Aridisol). When the irrigation depth per application was reduced to 7.5, 5.0, and 2.5 cm per application, the difference in infiltration rate was markedly reduced. The impact of elevated sodicity (SAR of 6 to 12) on infiltration can be an issue in alluvial soils, but unlikely in upland soils at irrigation water salinity of 1 to 2 dS m-1.

Miyamoto, S.

2012-10-05T23:59:59.000Z

317

Three-Dimensional Bayesian Geostatistical Aquifer Characterization at the Hanford 300 Area using Tracer Test Data  

SciTech Connect

Tracer testing under natural or forced gradient flow holds the potential to provide useful information for characterizing subsurface properties, through monitoring, modeling and interpretation of the tracer plume migration in an aquifer. Non-reactive tracer experiments were conducted at the Hanford 300 Area, along with constant-rate injection tests and electromagnetic borehole flowmeter (EBF) profiling. A Bayesian data assimilation technique, the method of anchored distributions (MAD) [Rubin et al., 2010], was applied to assimilate the experimental tracer test data with the other types of data and to infer the three-dimensional heterogeneous structure of the hydraulic conductivity in the saturated zone of the Hanford formation. In this study, the Bayesian prior information on the underlying random hydraulic conductivity field was obtained from previous field characterization efforts using the constant-rate injection tests and the EBF data. The posterior distribution of the conductivity field was obtained by further conditioning the field on the temporal moments of tracer breakthrough curves at various observation wells. MAD was implemented with the massively-parallel three-dimensional flow and transport code PFLOTRAN to cope with the highly transient flow boundary conditions at the site and to meet the computational demands of MAD. A synthetic study proved that the proposed method could effectively invert tracer test data to capture the essential spatial heterogeneity of the three-dimensional hydraulic conductivity field. Application of MAD to actual field data shows that the hydrogeological model, when conditioned on the tracer test data, can reproduce the tracer transport behavior better than the field characterized without the tracer test data. This study successfully demonstrates that MAD can sequentially assimilate multi-scale multi-type field data through a consistent Bayesian framework.

Chen, Xingyuan; Murakami, Haruko; Hahn, Melanie S.; Hammond, Glenn E.; Rockhold, Mark L.; Zachara, John M.; Rubin, Yoram

2012-06-01T23:59:59.000Z

318

Aquifer thermal energy storage at Mid-Island postal facility: Phase 1 final report  

DOE Green Energy (OSTI)

The successful widespread commercialization of aquifer thermal energy storage (ATES) in the United States will depend on how experiences gained from early full-scale projects are used as guides in the design, installation, and operation of future projects. One early system, built in the mid-1980s, is the US Postal Service (USPS) Mid-Island Mail Processing Facility (MPF), in Melville, New York. The heating, ventilation, and air conditioning (HVAC) of the MPF's workroom is provided by an ATES system, which is operated year-round to provide a source for both heating and cooling, in combination with a triethylene glycol (TEG) liquid-desiccant system for humidity control. Because the facility affords a unique opportunity to study this innovative system, the US Department of Energy's (DOE) Pacific Northwest Laboratory (PNL) entered into agreements with the USPS, the US Geological Survey (USGS), and the New York State Energy Research and Development Authority (the Energy Authority) to assess the operation and performance of the system. Two essentially independent questions were to be addressed by the project. The first question was: How does the MPF ATES/TEG technology compare to conventional technologies '' The second was: What can be done to make operation of the USPS MPF more economical '' Modelling of the MPF ATES/TEG HVAC system and its loads helped to address both of these questions by showing how much energy is used by the different system components. This report is divided into six sections. Section 1 is an introduction. Section 2 provides system background. Section 3 describes PNL's technical performance assessment of the system. Section 4 discusses the life-cycle cost assessment. An operational assessment of the liquid-desiccant system is discussed in Section 5. Section 6 contains conclusions of this study.

Marseille, T.J.; Armstrong, P.R.; Brown, D.R.; Vail, L.W.; Kannberg, L.D.

1993-05-01T23:59:59.000Z

319

Aquifer thermal energy storage at Mid-Island postal facility: Phase 1 final report  

DOE Green Energy (OSTI)

The successful widespread commercialization of aquifer thermal energy storage (ATES) in the United States will depend on how experiences gained from early full-scale projects are used as guides in the design, installation, and operation of future projects. One early system, built in the mid-1980s, is the US Postal Service (USPS) Mid-Island Mail Processing Facility (MPF), in Melville, New York. The heating, ventilation, and air conditioning (HVAC) of the MPF`s workroom is provided by an ATES system, which is operated year-round to provide a source for both heating and cooling, in combination with a triethylene glycol (TEG) liquid-desiccant system for humidity control. Because the facility affords a unique opportunity to study this innovative system, the US Department of Energy`s (DOE) Pacific Northwest Laboratory (PNL) entered into agreements with the USPS, the US Geological Survey (USGS), and the New York State Energy Research and Development Authority (the Energy Authority) to assess the operation and performance of the system. Two essentially independent questions were to be addressed by the project. The first question was: ``How does the MPF ATES/TEG technology compare to conventional technologies?`` The second was: ``What can be done to make operation of the USPS MPF more economical?`` Modelling of the MPF ATES/TEG HVAC system and its loads helped to address both of these questions by showing how much energy is used by the different system components. This report is divided into six sections. Section 1 is an introduction. Section 2 provides system background. Section 3 describes PNL`s technical performance assessment of the system. Section 4 discusses the life-cycle cost assessment. An operational assessment of the liquid-desiccant system is discussed in Section 5. Section 6 contains conclusions of this study.

Marseille, T.J.; Armstrong, P.R.; Brown, D.R.; Vail, L.W.; Kannberg, L.D.

1993-05-01T23:59:59.000Z

320

Using complex resistivity imaging to infer biogeochemical processes associated with bioremediation of a uranium-contaminated aquifer  

SciTech Connect

Experiments at the Department of Energy's Rifle Integrated Field Research Challenge (IFRC) site near Rifle, Colorado (USA) have demonstrated the ability to remove uranium from groundwater by stimulating the growth and activity of Geobacter species through acetate amendment. Prolonging the activity of these strains in order to optimize uranium bioremediation has prompted the development of minimally-invasive and spatially-extensive monitoring methods diagnostic of their in situ activity and the end products of their metabolism. Here we demonstrate the use of complex resistivity imaging for monitoring biogeochemical changes accompanying stimulation of indigenous aquifer microorganisms during and after a prolonged period (100+ days) of acetate injection. A thorough raw-data statistical analysis of discrepancies between normal and reciprocal measurements and incorporation of a new power-law phase-error model in the inversion were used to significantly improve the quality of the resistivity phase images over those obtained during previous monitoring experiments at the Rifle IRFC site. The imaging results reveal spatiotemporal changes in the phase response of aquifer sediments, which correlate with increases in Fe(II) and precipitation of metal sulfides (e.g., FeS) following the iterative stimulation of iron and sulfate reducing microorganism. Only modest changes in resistivity magnitude were observed over the monitoring period. The largest phase anomalies (>40 mrad) were observed hundreds of days after halting acetate injection, in conjunction with accumulation of Fe(II) in the presence of residual FeS minerals, reflecting preservation of geochemically reduced conditions in the aquifer - a prerequisite for ensuring the long-term stability of immobilized, redox-sensitive contaminants, such as uranium.

Orozco, A. Flores; Williams, K.H.; Long, P.E.; Hubbard, S.S.; Kemna, A.

2011-04-01T23:59:59.000Z

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321

Geochemical, mineralogical and microbiological characteristics of sediment from a naturally reduced zone in a uranium-contaminated aquife  

SciTech Connect

Localized zones or lenses of naturally reduced sediments have the potential to play a significant role in the fate and transport of redox-sensitive metals and metalloids in aquifers. To assess the mineralogy, microbiology and redox processes that occur in these zones, several cores from a region of naturally occurring reducing conditions in a U-contaminated aquifer (Rifle, CO) were examined. Sediment samples from a transect of cores ranging from oxic/suboxic Rifle aquifer sediment to naturally reduced sediment were analyzed for U and Fe content, oxidation state, and mineralogy; reduced S phases; and solid-phase organic C content using a suite of analytical and spectroscopic techniques on bulk sediment and size fractions. Solid-phase U concentrations were higher in the naturally reduced zone, with a high proportion of the U present as U(IV). The sediments were also elevated in reduced S phases and Fe(II), indicating it is very likely that U(VI), Fe(III), and SO4 reduction has occurred or is occurring in the sediment. The microbial community was assessed using lipid- and DNA-based techniques, and statistical redundancy analysis was performed to determine correlations between the microbial community and the geochemistry. Increased concentrations of solid-phase organic C and biomass in the naturally reduced sediment suggests that natural bioreduction is stimulated by a zone of increased organic C concentration associated with fine-grained material and lower permeability to groundwater flow. Characterization of the naturally bioreduced sediment provides an understanding of the natural processes that occur in the sediment under reducing conditions and how they may impact natural attenuation of radionuclides and other redox sensitive materials. Results also suggest the importance of recalcitrant organic C for maintaining reducing conditions and U immobilization.

Campbell, K M; K Kukkadapu, R K; Qafoku, N P; Peacock, A D; Lesher, E; Williams, K H; Bargar, J R; Wilkins, M J; Figueroa, L; Ranville, J; Davis, J A; Long, P E

2012-05-23T23:59:59.000Z

322

Geochemical, mineralogical and microbiological characteristics of sediment from a naturally reduced zone in a uranium-contaminated aquifer  

SciTech Connect

Localized zones or lenses of naturally reduced sediments have the potential to play a significant role in the fate and transport of redox-sensitive metals and metalloids in aquifers. To assess the mineralogy, microbiology, and redox processes that occur in these zones, we examined several cores from a region of naturally occurring reducing conditions in a uranium-contaminated aquifer (Rifle, CO). Sediment samples from a transect of cores ranging from oxic/suboxic Rifle aquifer sediment to naturally reduced sediment were analyzed for uranium and iron content, oxidation state, and mineralogy, reduced sulfur phases, and solid phase organic carbon content using a suite of analytical and spectroscopic techniques on bulk sediment and size fractions. Solid-phase uranium concentrations were higher in the naturally reduced zone, with a high proportion of the uranium present as reduced U(IV). The sediments were also elevated in reduced sulfur phases and Fe(II), indicating it is very likely that U(VI), Fe(III), and sulfate reduction occurred or is occurring in the sediment. The microbial community was assessed using lipid- and DNA-based techniques, and statistical redundancy analysis was performed to determine correlations between the microbial community and the geochemistry. Increased concentration of solid phase organic carbon and biomass in the naturally reduced sediment suggests that natural bioreduction is stimulated by a zone of increased organic carbon concentration associated with fine-grained material and lower permeability to groundwater flow. Characterization of the naturally bioreduced sediment provides an understanding of the natural processes that occur in the sediment under reducing conditions and how they may impact natural attenuation of radionuclides and other redox sensitive materials. Results also suggest the importance of recalcitrant organic carbon for maintaining reducing conditions and uranium immobilization.

Campbell, Kate M.; Kukkadapu, Ravi K.; Qafoku, Nikolla; Peacock, Aaron D.; Lesher, E.; Williams, Kenneth H.; Bargar, John R.; Wilkins, Michael J.; Figueroa, Linda A.; Ranville, James; Davis, James; Long, Philip E.

2012-05-23T23:59:59.000Z

323

Barriers to water marketing: opinions of major pumpers on water marketing issues in the Edwards Aquifer region  

E-Print Network (OSTI)

Groundwater use is a contentious issue in the Edwards Aquifer region of Texas. Many environmentalists are advocating groundwater law reform, much to the chagrin of property rights advocates. Establishment of tighter controls in the Edwards Aquifer region, which is imminent at this time, will have significant impacts on agriculture as well as municipalities and downstream users in the region.,.,This study provides us with a rare opportunity to study a changing resource management regime at an early phase. The spectrum of stakeholders in this issue is quite broad. Stakeholders may fit into any of the following categories: agricultural, municipal, recreational, and environmental interests. Despite the benefits of quantifying water rights and promoting water transfers to reallocate water more efficiently, there are certain externalities caused by this. Water transfers may cause "third-party impacts," or impacts on other individuals or interests not directly involved in the transaction. The purpose of the study was to identify the value placed on water in the Edwards Aquifer region, assess the extent of concern for third-party impacts in the region, and investigate whether or not these concerns might be a barrier to water marketing. These research questions were answered through the use of a telephone survey of major irrigators, municipal pumpers and industrial pumpers in Bexar, Comal and Hays counties. Results showed that there were not significantly different opinions on water marketing in general. Irrigators are more willing to sell water rights than municipalities or industries, and they are willing to supply relatively large amounts of water. Irrigators indicated a preference for transfers to other agricultural users. However, more than one-quarter of irrigators are against water marketing in general, and would not sell to anyone. Respondents indicated that markets should be free with regard to pricing, but some oversight should be instituted to protect third-party interests. Top water use priorities were sin-similar to those in the Texas Water Code.

Phillips, Laura Maureen

1996-01-01T23:59:59.000Z

324

University of Minnesota Aquifer Thermal Energy Storage (ATES) project report on the first long-term cycle  

DOE Green Energy (OSTI)

The technical feasibility of high-temperature (>100{degrees}C) aquifer thermal energy storage (IOTAS) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota`s St. Paul field test facility (FTF). This report describes the additions to the FTF for the long-term cycles and the details of the first long-term cycle (LT1) that was conducted from November 1984 through May 1985. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic aspects of LT1 are reported. The permits for long-term cycles required the addition of a monitoring well 30.5 m from the storage well for monitoring near the edge of the thermally affected area and allowed the addition of a cation-exchange water softener to enable continuous operation during the injection phase. Approximately 62% of the 9.47 GWh of energy added to the 9.21 {times} 10{sup 4} m{sup 3} of ground water stored in the aquifer LT1 was recovered. Ion-exchange water softening of the heated and stored ground water prevented scaling in the system heat exchangers and the storage well and changed the major-ion chemistry of the stored water. Temperatures at the storage horizons in site monitoring wells reached as high as 108{degrees}C during the injection phase of LT1. Following heat recovery, temperatures were <30{degrees}C at the same locations. Less permeable horizons underwent slow temperature changes. No thermal or chemical effects were observed at the remote monitoring site. 25 refs.

Walton, M. [Minnesota Geological Survey, St. Paul, MN (United States)

1991-10-01T23:59:59.000Z

325

University of Minnesota Aquifer Thermal Energy Storage (ATES) project report on the first long-term cycle  

DOE Green Energy (OSTI)

The technical feasibility of high-temperature (>100{degrees}C) aquifer thermal energy storage (IOTAS) in a deep, confined aquifer was tested in a series of experimental cycles at the University of Minnesota's St. Paul field test facility (FTF). This report describes the additions to the FTF for the long-term cycles and the details of the first long-term cycle (LT1) that was conducted from November 1984 through May 1985. Heat recovery; operational experience; and thermal, chemical, hydrologic, and geologic aspects of LT1 are reported. The permits for long-term cycles required the addition of a monitoring well 30.5 m from the storage well for monitoring near the edge of the thermally affected area and allowed the addition of a cation-exchange water softener to enable continuous operation during the injection phase. Approximately 62% of the 9.47 GWh of energy added to the 9.21 {times} 10{sup 4} m{sup 3} of ground water stored in the aquifer LT1 was recovered. Ion-exchange water softening of the heated and stored ground water prevented scaling in the system heat exchangers and the storage well and changed the major-ion chemistry of the stored water. Temperatures at the storage horizons in site monitoring wells reached as high as 108{degrees}C during the injection phase of LT1. Following heat recovery, temperatures were <30{degrees}C at the same locations. Less permeable horizons underwent slow temperature changes. No thermal or chemical effects were observed at the remote monitoring site. 25 refs.

Walton, M. (Minnesota Geological Survey, St. Paul, MN (United States))

1991-10-01T23:59:59.000Z

326

Enhanced Oil Recovery in High Salinity High Temperature Reservoir by Chemical Flooding  

E-Print Network (OSTI)

Studying chemical enhanced oil recovery (EOR) in a high-temperature/high-salinity (HT/HS) reservoir will help expand the application of chemical EOR to more challenging environments. Until recently, chemical EOR was not recommended at reservoirs that contain high concentrations of divalent cations without the need to recondition the reservoir by flooding it with less saline/ less hardness brines. This strategy was found ineffective in preparing the reservoir for chemical flooding. Surfactants used for chemical flooding operating in high temperatures tend to precipitate when exposed to high concentrations of divalent cations and will partition to the oil phase at high salinities. In this study amphoteric surfactant was used to replace the traditionally used anionic surfactants. Amphoteric surfactants show higher multivalent cations tolerance with better thermal stability. A modified amphoteric surfactant with lower adsorption properties was evaluated for oil recovery. Organic alkali was used to eliminate the water softening process when preparing the chemical solution and reduce potential scale problems caused by precipitation due to incompatibility between chemical slug containing alkali and formation brine. Using organic alkali helped in minimizing softening required when preparing an alkali-surfactant-polymer (ASP) solution using seawater. Solution prepared with organic alkali showed the least injectivity decline when compared to traditional alkalis (NaOH and Na2CO3) and sodium metaborate. Adding organic alkali helped further reduce IFT values when added to surfactant solution. Amphoteric surfactant was found to produce low IFT values at low concentrations and can operate at high salinity / high hardness conditions. When mixed with polymer it improved the viscosity of the surfactant-polymer (SP) solution when prepared in high salinity mixing water (6% NaCl). When prepared in seawater and tested in reservoir temperature (95C) no reduction in viscosity was found. Unlike the anionic surfactant that causes reduction in viscosity of the SP solution at reservoir temperature. This will not require increasing the polymer concentration in the chemical slug. Unlike the case when anionic surfactant was used and more polymer need to be added to compensate the reduction in viscosity. Berea sandstone cores show lower recovery compared to dolomite cores. It was also found that Berea cores were more sensitive to polymer concentration and type and injectivity decline can be a serious issue during chemical and polymer injection. Dolomite did not show injectivity decline during chemical and polymer flooding and was not sensitive to the polymer concentration when a polymer with low molecular weight was used. CT scan was employed to study the displacement of oil during ASP, SP, polymer and surfactant flooding. The formation and propagation oil bank was observed during these core flood experiments. ASP and SP flooding showed the highest recovery, and formation and propagation of oil bank was clearer in these experiments compared to surfactant flooding. It was found that in Berea sandstone with a permeability range of 50 to 80 md that the recovery and fluid flow was through some dominating and some smaller channels. This explained the deviation from piston-like displacement, where a sharp change in saturation in part of the flood related to the dominated channels and tapered front with late arrival when oil is recovered from the smaller channels. It was concluded that the recovery in the case of sandstone was dominated by the fluid flow and chemical propagation in the porous media not by the effectiveness of the chemical slug to lower the IFT between the displacing fluid and oil.

Bataweel, Mohammed Abdullah

2011-12-01T23:59:59.000Z

327

TOUGH +: Modeling Fluid and Heat Flow in Porous and Fractured ...  

geologic carbon sequestration sites; saline and freshwater aquifers (including the vadose zone) sites contaminated by radionuclides or volatile organic compounds;

328

CX-008439: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-008439: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir (Task 17 -...

329

CX-002613: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-002613: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

330

CX-002609: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-002609: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

331

CX-008441: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-008441: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir (Task 17 -...

332

CX-002612: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-002612: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

333

CX-008440: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-008440: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir (Task 17 -...

334

The aquifer chill storage project at the University of Alabama, Tuscaloosa: Progress report for 1985 and 1986  

DOE Green Energy (OSTI)

Aquifer thermal energy storage (ATES) is predicted to be the most cost-effective technology for seasonal storage of low-grade thermal energy. Approximately 60% of the US is underlain with aquifers potentially suitable for underground energy storage. Under sponsorship of the US Department of Energy (DOE), Pacific Northwest Laboratory (PNL), which is operated by Battelle Memorial Institute, has managed numerical modeling, laboratory studies, evaluation of environmental and institutional issues, and field testing of ATES at several sites. This report describes the monitoring and evaluation (under the auspices of PNL) of an ATES chill system constructed and operated by the University of Alabama at Tuscaloosa, Alabama. The system is the first such system to be monitored in a comprehensive manner. Results support both the promise and problems likely to be encountered in such systems. Chill ATES has the potential to substantially reduce energy consumption and, especially, summer peak cooling electrical demand. However, the geohydrologic environment that the system will use must be a major element in system design and operation. 9 refs., 25 figs., 10 tabs.

Schaetzle, W.J.; Brett, C.E.

1989-05-01T23:59:59.000Z

335

Engineering and Economic Assessment of Carbon Dioxide Sequestration in Saline Formations  

NLE Websites -- All DOE Office Websites (Extended Search)

and Economic Assessment of and Economic Assessment of Carbon Dioxide Sequestration in Saline Formations Lawrence A. Smith (smithla@battelle.org; 614-424-3169) Neeraj Gupta (gupta@battelle.org; 614-424-3820)* Bruce M. Sass and Thomas A. Bubenik Battelle Memorial Institute, 505 King Avenue, Columbus, OH 43201 *Corresponding Author Charles Byrer (a) and Perry Bergman (b) National Energy Technology Laboratory (a) P.O. Box 880, Morgantown, WV, 26507-0880 (b) P.O. Box 10940, Pittsburgh, PA, 15236-0940 ABSTRACT Concern over the potential effects of greenhouse gases such as carbon dioxide (CO 2 ) on global climate has triggered research about ways to mitigate the release of these gases to the atmosphere. A project to study the engineering feasibility and costs of sequestering CO

336

Evaluation of materials for systems using cooled, treated geothermal or high-saline brines  

DOE Green Energy (OSTI)

Lack of adequate quantities of clean surface water for use in wet (evaporative) cooling systems indicates the use of high-salinity waste waters, or cooled geothermal brines, for makeup purposes. High-chloride, aerated water represents an extremely corrosive environment. In order to determine metals suitable for use in such an environment, metal coupons were exposed to aerated, treated geothermal brine salted to a chloride concentration of 10,000 and 50,000 ppM (mg/L) for periods of up to 30 days. The exposed coupons were evaluated to determine the general, pitting, and crevice corrosion characteristics of the metals. The metals exhibiting corrosion resistance at 50,000 ppM chloride were then evaluated at 100,000 and 200,000 ppM chloride. Since these were screening tests to select materials for components to be used in a cooling system, with primary emphasis on condenser tubing, several materials were exposed for 4 to 10 months in pilot cooling tower test units with heat transfer for further corrosion evaluation. The results of the screening tests indicate that ferritic stainless steels (29-4-2 and SEA-CURE) exhibit excellent corrosion resistance at all levels of chloride concentration. Copper-nickel alloys (70/30 and Monel 400) exhibited excellent corrosion resistance in the high-saline water. The 70/30 copper-nickel alloy, which showed excellent resistance to general corrosion, exhibited mild pitting in the 30-day tests. This pitting was not apparent, however, after 6 months of exposure in the pilot cooling tower tests. The nickel-base alloys exhibited excellent corrosion resistance, but their high cost prevents their use unless no other material is found feasible. Other materials tested, although unsuitable for condenser tubing material, would be suitable as tube sheet material.

Suciu, D.F.; Wikoff, P.M.

1982-09-01T23:59:59.000Z

337

Genome of a low-salinity ammoniaoxidizing archaeon determined by single-cell and metagenomic analysis  

E-Print Network (OSTI)

Ammonia-oxidizing archaea (AOA) are thought to be among the most abundant microorganisms on Earth and may significantly impact the global nitrogen and carbon cycles. We sequenced the genome of AOA in an enrichment culture from low-salinity sediments in San Francisco Bay using single-cell and metagenomic genome sequence data. Five single cells were isolated inside an integrated microfluidic device using laser tweezers, the cells genomic DNA was amplified by multiple displacement amplification (MDA) in 50 nL volumes and then sequenced by high-throughput DNA pyrosequencing. This microscopy-based approach to single-cell genomics minimizes contamination and allows correlation of high-resolution cell images with genomic sequences. Statistical properties of coverage across the five single cells, in combination with the contrasting properties of the metagenomic dataset allowed the assembly of a high-quality draft genome. The genome of this AOA, which we designate Candidatus Nitrosoarchaeum limnia SFB1, is,1.77 Mb with.2100 genes and a G+C content of 32%. Across the entire genome, the average nucleotide identity to Nitrosopumilus maritimus, the only AOA in pure culture, is,70%, suggesting this AOA represents a new genus of Crenarchaeota. Phylogenetically, the 16S rRNA and ammonia monooxygenase subunit A (amoA) genes of this AOA are most closely related to sequences reported from a wide variety of freshwater ecosystems. Like N. maritimus, the low-salinity AOA genome appears to have an ammonia oxidation pathway distinct from ammonia oxidizing bacteria (AOB). In contrast to other described AOA, these lowsalinity

Paul C. Blainey; Annika C. Mosier; Anastasia Potanina; Christopher A. Francis; Stephen R. Quake

2011-01-01T23:59:59.000Z

338

Evolution of the Arctic Ocean Salinity, 200708: Contrast between the Canadian and the Eurasian Basins  

Science Conference Proceedings (OSTI)

The authors investigate the variability of salinity in the Arctic Ocean and in the Nordic and Labrador Seas over recent years to see how the freshwater balance in the Arctic and the exchanges with the North Atlantic have been affected by the ...

Camille Lique; Gilles Garric; Anne-Marie Treguier; Bernard Barnier; Nicolas Ferry; Charles-Emmanuel Testut; Fanny Girard-Ardhuin

2011-03-01T23:59:59.000Z

339

Offshore Detachment Process of the Low-Salinity Water around Changjiang Bank in the East China Sea  

Science Conference Proceedings (OSTI)

A patchlike structure of low-salinity water detached from the Chanjiang Diluted Water (CDW) is frequently observed in the East China Sea (ECS). In this study, the offshore detachment process of CDW into the ECS is examined using a three-...

Jae-Hong Moon; Naoki Hirose; Jong-Hwan Yoon; Ig-Chan Pang

2010-05-01T23:59:59.000Z

340

Position paper on the applicability of supplemental standards to the uppermost aquifer at the Uranium Mill Tailings Vitro Processing Site, Salt Lake City, Utah  

SciTech Connect

This report documents the results of the evaluation of the potential applicability of supplemental standards to the uppermost aquifer underlying the Uranium Mill Tailings Remedial Action (UMTRA) Project, Vitro Processing Site, Salt Lake City, Utah. There are two goals for this evaluation: provide the landowner with information to make an early qualitative decision on the possible use of the Vitro property, and evaluate the proposed application of supplemental standards as the ground water compliance strategy at the site. Justification of supplemental standards is based on the contention that the uppermost aquifer is of limited use due to wide-spread ambient contamination not related to the previous site processing activities. In support of the above, this report discusses the site conceptual model for the uppermost aquifer and related hydrogeological systems and establishes regional and local background water quality. This information is used to determine the extent of site-related and ambient contamination. A risk-based evaluation of the contaminants` effects on current and projected land uses is also provided. Reports of regional and local studies and U.S. Department of Energy (DOE) site investigations provided the basis for the conceptual model and established background ground water quality. In addition, a limited field effort (4 through 28 March 1996) was conducted to supplement existing data, particularly addressing the extent of contamination in the northwestern portion of the Vitro site and site background ground water quality. Results of the field investigation were particularly useful in refining the conceptual site model. This was important in light of the varied ground water quality within the uppermost aquifer. Finally, this report provides a critical evaluation, along with the related uncertainties, of the applicability of supplemental standards to the uppermost aquifer at the Salt Lake City Vitro processing site.

NONE

1996-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

HYDROGEL TRACER BEADS: THE DEVELOPMENT, MODIFICATION, AND TESTING OF AN INNOVATIVE TRACER FOR BETTER UNDERSTANDING LNAPL TRANSPORT IN KARST AQUIFERS  

Science Conference Proceedings (OSTI)

The goal of this specific research task is to develop proxy tracers that mimic contaminant movement to better understand and predict contaminant fate and transport in karst aquifers. Hydrogel tracer beads are transported as a separate phase than water and can used as a proxy tracer to mimic the transport of non-aqueous phase liquids (NAPL). They can be constructed with different densities, sizes & chemical attributes. This poster describes the creation and optimization of the beads and the field testing of buoyant beads, including sampling, tracer analysis, and quantitative analysis. The buoyant beads are transported ahead of the dissolved solutes, suggesting that light NAPL (LNAPL) transport in karst may occur faster than predicted from traditional tracing techniques. The hydrogel beads were successful in illustrating this enhanced transport.

Amanda Laskoskie, Harry M. Edenborn, and Dorothy J. Vesper

2012-01-01T23:59:59.000Z

342

H[sub 2]OTREAT: An acid for evaluating water treatment requirements for Aquifer Thermal Energy Storage  

DOE Green Energy (OSTI)

A public-domain software package is available to aid engineers in the design of water treatment systems for Aquifer Thermal Energy Storage (ATES). Geochemical phenomena that cause problems in ATES systems include formation of scale in heat exchangers, clogging of wells, corrosion in piping and heat exchangers, and degradation of aquifer materials. Preventing such problems frequently requires employing water treatment systems. Individual water treatment methods vary in cost. effectiveness, environmental impact, corrosion potential, and acceptability to regulatory bodies. Evaluating these water treatment options is generally required to determine the feasibility of ATFS systems. The H20TREAT software was developed by Pacific Northwest Laboratory for use by engineers with limited or no experience in geochemistry. At the feasibility analysis and design stages, the software utilizes a recently revised geochemical model,MINTEQ, to calculate the saturation indices of selected carbonate, oxide, and hydroxide minerals based on water chemistry and temperature data provided by the user. The saturation indices of key calcium, iron. silica, and manganese carbonates, oxides, and hydroxides (calcite, rhodochrosite, siderite, Fe(OH)[sub 3][a], birnessite, chalcedony, and SiO[sub 2]) are calculated. Currently, H20TREAT does not perform cost calculations; however, treatment capacity requirements are provided. Treatments considered include (1) Na and H ion exchangers and pellet reactors to avoid calcite precipitation, and (2) in situ nitrate addition and cascade precipitation. The H20TREAT software also provides the user with guidance on other geochemical problems that must be considered, such as SiO[sub 2] precipitation, corrosion, and environmental considerations. The sodium adsorption ratio and sodium hazard are calculated to evaluate the likelihood of clay swelling and dispersion caused by high Na concentrations. H20TREAT is available for DOS and UNIX computers.

Vail, L.W.; Jenne, E.A.; Eary, L.E.

1992-08-01T23:59:59.000Z

343

H{sub 2}OTREAT: An acid for evaluating water treatment requirements for Aquifer Thermal Energy Storage  

DOE Green Energy (OSTI)

A public-domain software package is available to aid engineers in the design of water treatment systems for Aquifer Thermal Energy Storage (ATES). Geochemical phenomena that cause problems in ATES systems include formation of scale in heat exchangers, clogging of wells, corrosion in piping and heat exchangers, and degradation of aquifer materials. Preventing such problems frequently requires employing water treatment systems. Individual water treatment methods vary in cost. effectiveness, environmental impact, corrosion potential, and acceptability to regulatory bodies. Evaluating these water treatment options is generally required to determine the feasibility of ATFS systems. The H20TREAT software was developed by Pacific Northwest Laboratory for use by engineers with limited or no experience in geochemistry. At the feasibility analysis and design stages, the software utilizes a recently revised geochemical model,MINTEQ, to calculate the saturation indices of selected carbonate, oxide, and hydroxide minerals based on water chemistry and temperature data provided by the user. The saturation indices of key calcium, iron. silica, and manganese carbonates, oxides, and hydroxides (calcite, rhodochrosite, siderite, Fe(OH){sub 3}[a], birnessite, chalcedony, and SiO{sub 2}) are calculated. Currently, H20TREAT does not perform cost calculations; however, treatment capacity requirements are provided. Treatments considered include (1) Na and H ion exchangers and pellet reactors to avoid calcite precipitation, and (2) in situ nitrate addition and cascade precipitation. The H20TREAT software also provides the user with guidance on other geochemical problems that must be considered, such as SiO{sub 2} precipitation, corrosion, and environmental considerations. The sodium adsorption ratio and sodium hazard are calculated to evaluate the likelihood of clay swelling and dispersion caused by high Na concentrations. H20TREAT is available for DOS and UNIX computers.

Vail, L.W.; Jenne, E.A.; Eary, L.E.

1992-08-01T23:59:59.000Z

344

Investigations on the use of anodic stripping voltammetry for the analyses of lead in saline environments  

SciTech Connect

Research is reported directed to modification of the anodic stripping voltammetry (ASV) analytic method in order to acquire data for lead from ambient sea water conditions, and development of a chemical model which uses these data to identify inorganic lead species for saline environments. Laboratory and field samples were analyzed for lead partitioning in: (a) KCl electrolyte solutions; (b) I.A.P.S.O. Standard Sea Water; (c) seawater samples from Quatsino Sound, British Columbia; (d) a series of seawater samples from San Francisco Bay; and (e) seawater samples from the Gulf of Mexico. The electrochemical traits of the lead species and the ASV oxidation potential expression are the fundamental constituents of the chemical model. The model uses the data from the analyses to provide the mass balance relationships for lead partitioned among the major anions in seawater. The laboratory analyses of KCl electrolyte and Standard Seawater give the following results. The modified ASV method and chemical model provide information on ambient labile and non-labile inorganic lead complexes in these saline solutions down to the parts-per-billion level. No purge and the simple electrodes cause some erratic behavior and spurious potentials, but the data are reproducible. In addition to Pb/sup 2 +/, the most dominant measured lead species in order include PbCO/sub 3//sup 0/, PbSO/sub 4//sup 0/, PbCl/sup +/, and Pb(NO/sub 3/)/sub 2//sup 0/ from the lead additions solution. The analyses of the field samples give the following results. Samples were taken from the partially anoxic basin in Quatsino Sound, British Columbia with one successful analysis which is for somewhat normal dissolved oxygen conditions. Data show that lead is partitioned among Pb/sup 2 +/, Pb(OH)/sub 2//sup 0/, PbCO/sub 3//sup 0/, and PbSO/sub 4//sup 0/. The analyses with purge for the San Francisco Bay water partitions lead among Pb/sup 2 +/, PbCO/sub 3//sup 0/, PbSO/sub 4//sup 0/, PbCl/sup +/, and PbOH/sup +/. With successive lead additions Pb(NO/sub 3/)/sub 2//sup 0/ is decidedly the dominant species.

Case, C.W.

1978-08-01T23:59:59.000Z

345

Project Overview  

NLE Websites -- All DOE Office Websites (Extended Search)

- Rock heterogeneity including fault mapping - Assess abandoned wells * Technology transfer Top Arbuckle Group and Producing Wells in Arbuckle Regional Study Area Ozark...

346

Development of a point-electrode conductivity salinometer with high-spatial-resolution for use in very-saline solutions  

DOE Green Energy (OSTI)

A conductivity probe and circuit were developed to measure salinities in sodium chloride salt-gradient solar ponds. A point-electrode salinometer design was chosen to give a spatial resolution of approximately 1 mm (0.039 in.). Such high spatial resolution was necessary to study the behavior of thermohaline columns in the vicinity of convective/conductive zone boundaries. The point-electrode conductivity instrument was designed for use in up to 25 wt % salinities with immersion times of about 0.1 year or longer. Drift in the instrument, however, caused principally by changes in the surface condition of the platinum probe tip and reflected by changes in the probe cell constant, required periodic in situ calibration against the measured specific gravity of withdrawn fluid samples.

Jones, G.F.; Grimmer, D.P.; Tafoya, J.; Fitzgerald, T.J.

1983-01-01T23:59:59.000Z

347

Expanding the potential for saline formations : modeling carbon dioxide storage, water extraction and treatment for power plant cooling.  

Science Conference Proceedings (OSTI)

The National Water, Energy and Carbon Sequestration simulation model (WECSsim) is being developed to address the question, 'Where in the current and future U.S. fossil fuel based electricity generation fleet are there opportunities to couple CO{sub 2} storage and extracted water use, and what are the economic and water demand-related impacts of these systems compared to traditional power systems?' The WECSsim collaborative team initially applied this framework to a test case region in the San Juan Basin, New Mexico. Recently, the model has been expanded to incorporate the lower 48 states of the U.S. Significant effort has been spent characterizing locations throughout the U.S. where CO{sub 2} might be stored in saline formations including substantial data collection and analysis efforts to supplement the incomplete brine data offered in the NatCarb database. WECSsim calculates costs associated with CO{sub 2} capture and storage (CCS) for the power plant to saline formation combinations including parasitic energy costs of CO{sub 2} capture, CO{sub 2} pipelines, water treatment options, and the net benefit of water treatment for power plant cooling. Currently, the model can identify the least-cost deep saline formation CO{sub 2} storage option for any current or proposed coal or natural gas-fired power plant in the lower 48 states. Initial results suggest that additional, cumulative water withdrawals resulting from national scale CCS may range from 676 million gallons per day (MGD) to 30,155 MGD depending on the makeup power and cooling technologies being utilized. These demands represent 0.20% to 8.7% of the U.S. total fresh water withdrawals in the year 2000, respectively. These regional and ultimately nation-wide, bottom-up scenarios coupling power plants and saline formations throughout the U.S. can be used to support state or national energy development plans and strategies.

Not Available

2011-04-01T23:59:59.000Z

348

Deltaic sedimentation in saline, alkaline Lake Bogoria, Kenya: Response to environmental change  

Science Conference Proceedings (OSTI)

Lake Bogoria is a meromictic, saline (90 g/l TDS), alkaline (pH: 10.3) lake with Na-CO[sub 3]-Cl waters, located in a narrow half-graben in the central Kenya Rift. It is fed by hot springs, direct precipitation, and a series of ephemeral streams that discharge into the lake via small deltas and fan-deltas. Examination of the exposed deltas and >50 short cores from the lake floor, have revealed a wide range of deltaic and prodeltaic sediments, including turbidites and subaqueous debris-flow deposits. Studies of 3 long cores and the exposed delta stratigraphy have shown how the style of deltaic sedimentation has responded to environmental changes during the last 30,000 years. During humid periods when lake level is high the lake waters are fresher and less dense. Theoretically, high sediment yield and more constant discharge may promote underflow (hyperpycnal flow), generating low-density turbidity currents. In contrast, during low stages with dense brine, the less dense, inflowing waters carry fine sediment plumes toward the center of the lake where they settle from suspension (hypopycnal flow). Although applicable as a general model, the sediment record shows that reality is more complex. Variations in meromixis and level of the chemocline, together with local and temporal differences in sediment yield and discharge, may permit density flows even when the lake is under a predominant hypopycnal regime. During periods of aridity when sodium carbonate evaporites were forming, exposed delta plains were subject to desiccation with local development of calcrete and zeolitic paleosols.

Renaut, R.W. (Univ. of Saskatchewan, Saskatoon (Canada). Dept. of Geological Sciences); Tiercelin, J.J. (Univ. Bretagne Occidentale, Brest (France). Domaines Oceaniques)

1993-03-01T23:59:59.000Z

349

A Field Proof-of-Concept of Aquifer Imaging Using 3-D Transient Hydraulic Tomography with Modular, Temporarily-Emplaced Equipment  

SciTech Connect

Hydraulic tomography is a field scale aquifer characterization method capable of estimating 3-D heterogeneous parameter distributions, and is directly sensitive to hydraulic conductivity (K), thus providing a useful data source for improving flow and transport models. We present results from a proof-of-concept field and modeling study in which we apply 3-D transient hydraulic tomography (3DTHT) to the relatively high-K and moderately heterogeneous unconfined aquifer at the Boise Hydrogeophysical Research Site. Short-duration (20 min) partially penetrating pumping tests, for which observed responses do not reach steady state, are used as the aquifer stimulation. To collect field data, we utilize a system of temporarily emplaced packer equipment to isolate multiple discrete intervals in boreholes. To analyze the data, we utilize MODFLOW combined with geostatistical inversion code based on the quasilinear approach of Kitanidis (1995). This combination of practical software allows inversion of large datasets (>250 drawdown curves, and almost 1000 individual data points) and estimation of K at >100,000 locations; reasonable runtimes are obtained using a single multicore computer with 12 GB of RAM. The K heterogeneity results from 3DTHT are cross-validated against K characterization from a large set of partially penetrating slug tests, and found to be quite consistent. The use of portable, modular equipment for field implementation means that 3DTHT data collection can be performed (including mobilization/demobilization) within a matter of days. Likewise, use of a practical, efficient and scalable numerical modeling and inversion strategy means that computational effort is drastically reduced, such that 3-D aquifer property distributions can be estimated quickly.

Cardiff, Michael A.; Barrash, Warren; Kitanidis, P. K.

2012-05-19T23:59:59.000Z

350

Baseline mapping study of the Steed Pond aquifer and vadose zone beneath A/M Area, Savannah River Site, Aiken, South Carolina  

SciTech Connect

This report presents the second phase of a baseline mapping project conducted for the Environmental Restoration Department (ERD) at Savannah River Site. The purpose of this second phase is to map the structure and distribution of mud (clay and silt-sized sediment) within the vadose zone beneath A/M Area. The results presented in this report will assist future characterization and remediation activities in the vadose zone and upper aquifer zones in A/M Area.

Jackson, D.G. Jr.

2000-01-27T23:59:59.000Z

351

Revised Geostatistical Analysis of the Inventory of Carbon Tetrachloride in the Unconfined Aquifer in the 200 West Area of the Hanford Site  

Science Conference Proceedings (OSTI)

This report provides an updated estimate of the inventory of carbon tetrachloride (CTET) in the unconfined aquifer in the 200 West Area of the Hanford Site. The contaminant plumes of interest extend within the 200-ZP-1 and 200-UP-1 operable units. CH2M HILL Plateau Remediation Company (CHPRC) currently is preparing a plan identifying locations for groundwater extraction wells, injection wells, transfer stations, and one or more treatment facilities to address contaminants of concern identified in the 200-ZP-1 CERCLA Record of Decision. To accomplish this, a current understanding of the inventory of CTET is needed throughout the unconfined aquifer in the 200 West Area. Pacific Northwest National Laboratory (PNNL) previously developed an estimate of the CTET inventory in the area using a Monte Carlo approach based on geostatistical simulation of the three-dimensional (3D) distribution of CTET and chloroform in the aquifer. Fluor Hanford, Inc. (FH) (the previous site contractor) requested PNNL to update that inventory estimate using as input a set of geostatistical realizations of CTET and chloroform recently created for a related but separate project, referred to as the mapping project. The scope of work for the inventory revision complemented the scope of work for the mapping project, performed for FH by PNNL. This report briefly describes the spatial and univariate distribution of the CTET and chloroform data, along with the results of the geostatistical analysis and simulation performed for the mapping project.

Murray, Christopher J.; Bott, Yi-Ju

2008-12-30T23:59:59.000Z

352

Studies of marine macroalgae: saline desert water cultivation and effects of environmental stress on proximate composition. Final subcontract report. [Gracilaria tikvahiae; Ulva lactuca  

DOE Green Energy (OSTI)

The results presented in this report address the growth potential of marine macroalgae cultivated in desert saline waters, and the effects of certain environmental stresses (e.g., nitrogen, salinity, and temperature) on the proximate composition of several marine macroalgae. Two major desert saline water types were assayed for their ability to support the growth of Gracilaria, Ulva, and Caulerpa. Both water types supported short term growth, but long term growth was not supported. Carbohydrate levels in Gracilaria were increased by cultivation under conditions of high salinity, low temperature, and low nitrogen and phosphorous availability. Data suggests that it may be possible to maximize production of useful proximate constituents by cultivating the algae under optimum conditions for growth, and then holding the resulting biomass under the environmental conditions which favor tissue accumulation of the desired storage products. 16 refs., 21 figs., 19 tabs.

Ryther, J.H.; DeBusk, T.A.; Peterson, J.E.

1985-11-01T23:59:59.000Z

353

Effects of Subgrid-Scale Mixing Parameterizations on Simulated Distributions of Natural 14C, Temperature, and Salinity in a Three-Dimensional Ocean General Circulation Model  

Science Conference Proceedings (OSTI)

The effects of parameterizations of subgrid-scale mixing on simulated distributions of natural 14C, temperature, and salinity in a three-dimensional ocean general circulation model are examined. The parameterizations studied are 1) the Gent...

Philip B. Duffy; Ken Caldeira; Jerry Selvaggi; Martin I. Hoffert

1997-04-01T23:59:59.000Z

354

Climate Model Simulations of Effects of Increased Atmospheric CO2 and Loss of Sea Ice on Ocean Salinity and Tracer Uptake  

Science Conference Proceedings (OSTI)

Recent observations show a decrease in the extent of Northern Hemisphere sea ice; this decrease has been attributed to human activities. Climate model simulations are presented that examine how loss of sea ice affects the ocean salinity and ...

P. B. Duffy; M. Eby; A. J. Weaver

2001-02-01T23:59:59.000Z

355

Interpretation of Flow Logs from Nevada Test Site Boreholes to Estimate Hydraulic conductivity Using Numerical Simulations Constrained by Single-Well Aquifer Tests  

SciTech Connect

Hydraulic conductivities of volcanic and carbonate lithologic units at the Nevada Test Site were estimated from flow logs and aquifer-test data. Borehole flow and drawdown were integrated and interpreted using a radial, axisymmetric flow model, AnalyzeHOLE. This integrated approach is used because complex well completions and heterogeneous aquifers and confining units produce vertical flow in the annular space and aquifers adjacent to the wellbore. AnalyzeHOLE simulates vertical flow, in addition to horizontal flow, which accounts for converging flow toward screen ends and diverging flow toward transmissive intervals. Simulated aquifers and confining units uniformly are subdivided by depth into intervals in which the hydraulic conductivity is estimated with the Parameter ESTimation (PEST) software. Between 50 and 150 hydraulic-conductivity parameters were estimated by minimizing weighted differences between simulated and measured flow and drawdown. Transmissivity estimates from single-well or multiple-well aquifer tests were used to constrain estimates of hydraulic conductivity. The distribution of hydraulic conductivity within each lithology had a minimum variance because estimates were constrained with Tikhonov regularization. AnalyzeHOLE simulated hydraulic-conductivity estimates for lithologic units across screened and cased intervals are as much as 100 times less than those estimated using proportional flow-log analyses applied across screened intervals only. Smaller estimates of hydraulic conductivity for individual lithologic units are simulated because sections of the unit behind cased intervals of the wellbore are not assumed to be impermeable, and therefore, can contribute flow to the wellbore. Simulated hydraulic-conductivity estimates vary by more than three orders of magnitude across a lithologic unit, indicating a high degree of heterogeneity in volcanic and carbonate-rock units. The higher water transmitting potential of carbonate-rock units relative to volcanic-rock units is exemplified by the large difference in their estimated maximum hydraulic conductivity; 4,000 and 400 feet per day, respectively. Simulated minimum estimates of hydraulic conductivity are inexact and represent the lower detection limit of the method. Minimum thicknesses of lithologic intervals also were defined for comparing AnalyzeHOLE results to hydraulic properties in regional ground-water flow models.

Garcia, C. Amanda; Halford, Keith J.; Laczniak, Randell J.

2010-02-12T23:59:59.000Z

356

Stimulating the in situ activity of Geobacter species to remove uranium from the groundwater of a uranium-contaminated aquifer  

E-Print Network (OSTI)

The potential for removing uranium from contaminated groundwater by stimulating the in situ activity of dissimilatory metal-reducing microorganisms was evaluated in a uranium-contaminated aquifer located in Rifle, Colo. Acetate (1 to 3 mM) was injected into the subsurface over a 3-month period via an injection gallery composed of 20 injection wells, which was installed upgradient from a series of 15 monitoring wells. U(VI) concentrations decreased in as little as 9 days after acetate injection was initiated, and within 50 days uranium had declined below the prescribed treatment level of 0.18 ?M in some of the monitoring wells. Analysis of 16S ribosomal DNA (rDNA) sequences and phospholipid fatty acid profiles demonstrated that the initial loss of uranium from the groundwater was associated with an enrichment of Geobacter species in the treatment zone. Fe(II) in the groundwater also increased during this period, suggesting that U(VI) reduction was coincident with Fe(III) reduction. As the acetate injection continued over 50 days there was a loss of sulfate from the groundwater and an accumulation of sulfide and the composition of the microbial community changed. Organisms with 16S rDNA sequences most closely related to those of sulfate reducers became predominant,

Robert T. Anderson; Helen A. Vrionis; Irene Ortiz-bernad; Charles T. Resch; Philip E. Long; Richard Dayvault; Ken Karp; Sam Marutzky; Donald R. Metzler; Aaron Peacock; David C. White; Mary Lowe; Derek R. Lovley

2003-01-01T23:59:59.000Z

357

A comparative evaluation of conceptual models for the Snake River Plain aquifer at the Idaho Chemical Processing Plant, INEL  

SciTech Connect

Geologic and hydrologic data collected by the United States Geological Survey (USGS) are used to evaluate the existing ground water monitoring well network completed in the upper portion of the Snake River Plain aquifer (SRPA) beneath the Idaho Chemical Processing Plant (ICPP). The USGS data analyzed and compared in this study include: (a) lithologic, geophysical, and stratigraphic information, including the conceptual geologic models intrawell, ground water flow measurement (Tracejector tests) and (c) dedicated, submersible, sampling group elevations. Qualitative evaluation of these data indicate that the upper portion of the SRPA is both heterogeneous and anisotropic at the scale of the ICPP monitoring well network. Tracejector test results indicate that the hydraulic interconnection and spatial configuration of water-producing zones is extremely complex within the upper portion of the SRPA. The majority of ICPP monitoring wells currently are equipped to sample ground water only the upper lithostratigraphic intervals of the SRPA, primarily basalt flow groups E, EF, and F. Depth-specific hydrogeochemical sampling and analysis are necessary to determine if ground water quality varies significantly between the various lithostratigraphic units adjacent to individual sampling pumps.

Prahl, C.J.

1992-01-01T23:59:59.000Z

358

Changes in Hepatic Blood Flow During Transcatheter Arterial Infusion with Heated Saline in Hepatic VX2 Tumor  

SciTech Connect

Purpose. This study evaluates the influence of transcatheter arterial infusion with heated saline on hepatic arterial and portal venous blood flows to tumor and normal hepatic tissues in a rabbit VX2 tumor model. Methods. All animal experiments were approved by the institutional animal care and use committee. Twenty rabbits with VX2 liver tumors were divided into the following two groups: (a) the treated group (n = 10), which received a 60 mL transarterial injection of 60 Degree-Sign C saline via the hepatic artery; (b) the control group (n = 10), which received a 60 mL injection of 37 Degree-Sign C saline via the hepatic artery. Using ultrasonography, the blood flows in both the portal vein and hepatic artery were measured, and the changes in the hemodynamic indices were recorded before and immediately after the injection. The changes in the tumor and normal liver tissues of the two groups were histopathologically examined by hematoxylin and eosin staining after the injection. Results. After the transcatheter arterial heated infusion, there was a decrease in the hepatic arterial blood flow to the tumor tissue, a significant decrease in the hepatic artery mean velocity (P < 0.05), and a significant increase in the resistance index (P < 0.05). On hematoxylin and eosin staining, there were no obvious signs of tissue destruction in the normal liver tissue or the tumor tissue after heated perfusion, and coagulated blood plasma was observed in the cavities of intratumoral blood vessels in the treated group. Conclusions. The changes in tumor blood flow in the rabbit VX2 tumor model were presumably caused by microthrombi in the tumor vessels, and the portal vein likely mediated the heat loss in normal liver tissue during the transarterial heated infusion.

Cao Wei, E-mail: cawe-001@163.com [Tangdu Hospital, The Fourth Military Medical University, Department of Interventional Radiology (China); Li Jing, E-mail: lijing02@fmmu.edu.cn [Tangdu Hospital, The Fourth Military Medical University, Department of Burn and Plastic Surgery (China); Wu Zhiqun, E-mail: zhiqunwu@fmmu.edu.cn [Tangdu Hospital, The Fourth Military Medical University, Department of Interventional Radiology (China); Zhou Changxi, E-mail: changxizhou@163.com [Chinese PLA General Hospital, Department of Respiratory Disease (China); Liu Xi, E-mail: xiliu@fmmu.edu.cn [Tangdu Hospital, The Fourth Military Medical University, Department of Ultrasound Diagnostics (China); Wan Yi, E-mail: yiwan@163.com [The Fourth Military Medical University, Department of Health Statistics, Institute for Health Informatics (China); Duan Yunyou, E-mail: yunyouduan@fmmu.edu.cn [Tangdu Hospital, The Fourth Military Medical University, Department of Ultrasound Diagnostics (China)

2013-06-15T23:59:59.000Z

359

Initial Report for the Aquifer Background Study: Summary of Uranium and Plutonium Data from INEEL Groundwater Samples  

SciTech Connect

As part of the Aquifer Background Study, Los Alamos National Laboratory (LANL) under contract with the Idaho National Engineering and Environmental Laboratory (INEEL) has undertaken a study to determine uranium and plutonium abundances and isotopic composition in groundwater samples collected at the INEEL. To date, four samples have been analyzed for uranium and plutonium and an additional nine samples have been analyzed for uranium. It is expected that several more samples will be analyzed for this study. This report summarizes the results from this initial set of samples. Of the 13 samples analyzed for uranium, four samples have 238U/235U ratios that differ from the natural value of 137.88. These four samples and two additional samples also contain 236U at 3-sigma level above detection limits. The presence of 236U and the non-natural 238U/235U ratios unequivocally indicate the presence of anthropic uranium in four of the samples. A small component of anthropic uranium is also present in two additional samples with positive 236U detection but natural 238U/235U isotope ratios. Two of the samples with anthropic uranium, as well as two samples with no detectable anthropic uranium were analyzed for plutonium. No plutonium was detected in these four samples at detection limits of approximately 5E7 239Pu atoms for three of the samples and approximately 1E8 239Pu atoms for the forth sample. These detection limits correspond to (239+240)Pu activity ratios (assuming a 240Pu/239Pu atom ratio of 0.18) of 0.002 and 0.004 pCi/L respectively.

Robert C. Roback; Don L. Koeppen

2003-06-01T23:59:59.000Z

360

Dynamics of microbial community composition and function during in-situ bioremediation of a uranium-contaminated aquifer  

Science Conference Proceedings (OSTI)

A pilot-scale system was established to examine the feasibility of in situ U(VI) immobilization at a highly contaminated aquifer (U.S. DOE Integrated Field Research Challenge site, Oak Ridge, TN). Ethanol was injected intermittently as an electron donor to stimulate microbial U(VI) reduction, and U(VI) concentrations fell to below the Environmental Protection Agency drinking water standard (0.03 mg liter{sup -1}). Microbial communities from three monitoring wells were examined during active U(VI) reduction and maintenance phases with GeoChip, a high-density, comprehensive functional gene array. The overall microbial community structure exhibited a considerable shift over the remediation phases examined. GeoChip-based analysis revealed that Fe(III)-reducing bacterial (FeRB), nitrate-reducing bacterial (NRB), and sulfate-reducing bacterial (SRB) functional populations reached their highest levels during the active U(VI) reduction phase (days 137 to 370), in which denitrification and Fe(III) and sulfate reduction occurred sequentially. A gradual decrease in these functional populations occurred when reduction reactions stabilized, suggesting that these functional populations could play an important role in both active U(VI) reduction and maintenance of the stability of reduced U(IV). These results suggest that addition of electron donors stimulated the microbial community to create biogeochemical conditions favorable to U(VI) reduction and prevent the reduced U(IV) from reoxidation and that functional FeRB, SRB, and NRB populations within this system played key roles in this process.

Nostrand, J.D. Van; Wu, L.; Wu, W.M.; Huang, A.; Gentry, T.J.; Deng, Y.; Carley, J.; Carrol, S.; He, Z.; Gu, B.; Luo, J.; Criddle, C.S.; Watson, D.B.; Jardine, P.M.; Marsh, T.L.; Tiedje, J.M.; Hazen, T.C.; Zhou, J.

2010-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

High-density PhyloChip profiling of stimulated aquifer microbial communities reveals a complex response to acetate amendment  

Science Conference Proceedings (OSTI)

There is increasing interest in harnessing the functional diversity of indigenous microbial communities to transform and remediate a wide range of environmental contaminants. Understanding the response of communities to stimulation, including flanking taxa, presents important opportunities for optimizing remediation approaches. We used high-density PhyloChip microarray analysis to comprehensively determine community membership and abundance patterns amongst a suite of samples from U(VI) bioremediation experiments. Samples were unstimulated or collected during Fe(III) and sulfate reduction from an acetate-augmented aquifer in Rifle, Colorado, and from laboratory experiments using field-collected materials. Results showed the greatest diversity in abundant SRB lineages was present in naturally-reduced sediment. Desulfuromonadales and Desulfobacterales were consistently identified as the dominant Fe(III)- and sulfate-reducing bacteria (IRB and SRB) throughout acetate amendment experiments. Stimulated communities also exhibited a high degree of functional redundancy amongst enriched flanking members. Not surprisingly, competition for both sulfate and iron was evident amongst abundant taxa, but the distribution and abundance of these ancillary SRB (Peptococcaceae, Desulfovibrionales and Syntrophobacterales), and lineages containing IRB (excluding Desulfobacteraceae) was heterogeneous amongst sample types. Interesting, amongst the most abundant taxa, particularly during sulfate reduction, were Epsilonproteobacteria that perform microaerobic or nitrate-dependant sulfur oxidation, and a number of bacteria other than Geobacteraceae that may enzymatically reduce U(VI). Finally, in depth community probing with PhyloChip determined the efficacy of experimental approaches, notably revealing striking similarity amongst stimulated sediment (from drill cores and in-situ columns) and groundwater communities, and demonstrating that sediment-packed in-situ (down-well) columns served as an ideal method for subsurface biostimulation.

Handley, Kim M.; Wrighton, Kelly E.; Piceno, Y. M.; Anderson, Gary L.; DeSantis, Todd; Williams, Kenneth H.; Wilkins, Michael J.; N'Guessan, A. L.; Peacock, Aaron; Bargar, John R.; Long, Philip E.; Banfield, Jillian F.

2012-06-13T23:59:59.000Z

362

Potential Impacts of Desalination Concentrate on Salinity of Irrigation Water: A Case Study in the El Paso Valley  

E-Print Network (OSTI)

Winter returnflow has not been fully utilized for crop irrigation in the El Paso Valley. There are, however, emerging interests in utilizing it for urban water supply through desalting. This study examined the potential impact of concentrate discharge on salinity, sodicity, and ionic composition of irrigation water supply, using historical or published records. The analyses performed consisted of the estimate of riverflow rates on river water quality, a review of concentrate and permeate quality from nanofiltration (NF) and reverse osmosis (RO), and the impacts of dilution or blending on water quality. Riverflow and quality data from the U.S. Section, International Boundary and Water Commission (US-IBWC) were examined first. This analysis has shown that salinity and ionic composition of riverflow can be described by a simple power function as related to the momentary riverflow rate when water samples were taken for chemical analyses. This method provides more accurate estimates of monthly salinity than the use of monthly average flow which has a high degree of variation. In addition, this approximation technique allows for the estimation of river salinity and ionic compositions at any riverflow rates of interest. A review of published articles on NF processes indicates that there are essentially two types of membranes: one has a low rejection rate for Na and Cl, and the other has a high rejection rate. If the objective is to minimize Na and Cl ions while maximizing Ca and Mg concentrations in the concentrate, the first type is preferred. However, the sodium adsorption ratio (SAR) of concentrate from the first type of NF membrane is also influenced by feed water quality. Typically, the SAR of the concentrate does not change appreciably in water that is rich in SO4, as the rejection rate of SO4 is high, and SO4 ions remain in the concentrate along with accompanying cations. The SAR of the concentrate is not necessarily lower than that of feed water, due to the salt concentration effect on SAR. The SAR value which directly impacts the cation exchange reaction in soils decreases with dilution, but increases due to the increased formation of sulfate-divalent cation ion-pairs. Sodicity of the concentrate from the second type is higher than the sodicity of feed water or that of the concentrate from the first type, and approaches the concentrate composition from a RO process. The most significant changes that take place in the concentrate composition from the first type are an increase in TDS and divalent cations and anions, whereas sodicity and chloride concentrations remain more or less the same as those of feed water. Permeate from the first type of NF membrane is likely to be higher in Na, Cl, and TDS than from the second type. These elevated salt levels limit the opportunity for blending with the river water, which has elevated salinity and SO4 concentrations, especially at a low riverflow of 5 Mm3/mo or less. Sodicity and the concentrations of Na and Cl in the permeate could also exceed the unofficial water quality guidelines for irrigating urban landscape. If the RO process or the second type of NF membrane is used, the permeate can be blended with river water at nearly a 1:1 ratio. This means that a lesser quantity of water needs to be treated when a RO process is used. If river water high in Na and Cl concentrations is used for blending, the salt load of the concentrate from the NF process can actually be greater than that from the RO process, because of the limited blending possibility. If the NF option is to be retained, a NF membrane with some rejection of Cl ions may be warranted, unless blending water low in Cl is available at or near the site. Assuming that flow and salinity monitoring data at the Courchesne Bridge are realistic, the disposal of NF concentrate from 5 and 10 MGD membrane processes at a riverflow rate of 5 Mm3/mo may increase salinity of riverwater by around 7 and 16%, respectively, over the existing salinity. This estimate is for a NF membrane with a low

Miyamoto, S.

2008-05-01T23:59:59.000Z

363

Plant response to Na/sup +/, K/sup +/ and K/sup +//Na/sup +/ ratios under saline conditions  

Science Conference Proceedings (OSTI)

This research was undertaken to more clearly determine plant response to saline-sodic waters. In the first experiment, the response of wheat and sorghum to different K/sup +//Na/sup +/ ratios at different osmotic potentials was investigated. The plants were grown in outdoor solution culture tanks containing polyethylene glycol and/or NaCl as osmoticum with 1/2 strength Hoagland as the base nutrient solution. The mass of the root system for both wheat and sorghum was determined primarily by the osmotic potential. However, root elongation was controlled primarily by the Na/sup +/ concentration. Sorghum root elongation rates decreased with increasing Na/sup +/ while those for wheat increased. Sodium was not translocated out of the sorghum root system until a critical Na/sup +/ root saturation level of .6 moles/kg was obtained. The second experiment was designed to investigate the water, nutrient and growth responses of the second crop of wheat in a wheat-sorghum-wheat rotation to zonal saline-sodic conditions.

Devitt, D.A.

1983-01-01T23:59:59.000Z

364

A GIS COST MODEL TO ASSESS THE AVAILABILITY OF FRESHWATER, SEAWATER, AND SALINE GROUNDWATER FOR ALGAL BIOFUEL PRODUCTION IN THE UNITED STATES  

SciTech Connect

A key advantage of using microalgae for biofuel production is the ability of some algal strains to thrive in waters unsuitable for conventional crop irrigation such as saline groundwater or seawater. Nonetheless, the availability of sustainable water supplies will provide significant challenges for scale-up and development of algal biofuels. We conduct a limited techno-economic assessment based on the availability of freshwater, saline groundwater, and seawater for use in open pond algae cultivation systems. We explore water issues through GIS-based models of algae biofuel production, freshwater supply, and cost models for supplying seawater and saline groundwater. We estimate that combined, within the coterminous US these resources can support production on the order of 9.46E+7 m3 yr-1 (25 billion gallons yr-1) of renewable biodiesel. Achievement of larger targets requires the utilization of less water efficient sites and relatively expensive saline waters. Geographically, water availability is most favorable for the coast of the Gulf of Mexico and Florida peninsula, where evaporation relative to precipitation is moderate and various saline waters are economically available. As a whole, barren and scrub lands of the southwestern US have limited freshwater supplies so accurate assessment of alternative waters is critical.

Venteris, Erik R.; Skaggs, Richard; Coleman, Andre M.; Wigmosta, Mark S.

2013-03-15T23:59:59.000Z

365

Elucidating geochemical response of shallow heterogeneous aquifers to CO2 leakage using high-performance computing: Implications for monitoring of CO2 sequestration  

SciTech Connect

Predicting and quantifying impacts of potential carbon dioxide (CO2) leakage into shallow aquifers that overlie geologic CO2 storage formations is an important part of developing reliable carbon storage techniques. Leakage of CO2 through fractures, faults or faulty wellbores can reduce groundwater pH, inducing geochemical reactions that release solutes into the groundwater and pose a risk of degrading groundwater quality. In order to help quantify this risk, predictions of metal concentrations are needed during geologic storage of CO2. Here, we present regional-scale reactive transport simulations, at relatively fine-scale, of CO2 leakage into shallow aquifers run on the PFLOTRAN platform using high-performance computing. Multiple realizations of heterogeneous permeability distributions were generated using standard geostatistical methods. Increased statistical anisotropy of the permeability field resulted in more lateral and vertical spreading of the plume of impacted water, leading to increased Pb2+ (lead) concentrations and lower pH at a well down gradient of the CO2 leak. Pb2+ concentrations were higher in simulations where calcite was the source of Pb2+ compared to galena. The low solubility of galena effectively buffered the Pb2+ concentrations as galena reached saturation under reducing conditions along the flow path. In all cases, Pb2+ concentrations remained below the maximum contaminant level set by the EPA. Results from this study, compared to natural variability observed in aquifers, suggest that bicarbonate (HCO3) concentrations may be a better geochemical indicator of a CO2 leak under the conditions simulated here.

Navarre-Sitchler, Alexis K.; Maxwell, Reed M.; Siirila, Erica R.; Hammond, Glenn E.; Lichtner, Peter C.

2013-03-01T23:59:59.000Z

366

Response of the Toxic Dinoflagellate Karenia brevis to Current and Projected Environmental Conditions: Salinity and Global Climate Change  

E-Print Network (OSTI)

Harmful algal blooms (HABs) are increasing in frequency and duration worldwide. Karenia brevis, the major toxic dinoflagellate in the Gulf of Mexico, produces potent neurotoxins, known as brevetoxins. For K. brevis, only minor concentrations of brevetoxins are needed to induce toxicity and environmental conditions appear to have the most direct impact on the cellular content of these toxins. A better understanding of K. brevis biology is essential to understand the mechanisms underlying toxin production and the ecology of such HABs, as well as to better anticipate and respond to such blooms. Here we present findings on the effect of salinity and availability of carbon on cellular physiology and brevetoxin and brevenal production by K. brevis. When grown at salinities of 35 and 27, but otherwise identical conditions, total brevetoxin cellular concentration varied between 0 to 18.5 pg cell-1 and brevenal varied between 0 and 1 pg cell-1. In response to hypoosmotic stress brevetoxin production was triggered, as a result, brevetoxin production increased up to 53%, while growth rates remained unchanged. A significant hypoosmotic event of >11%, was needed to trigger the response in brevetoxin production. To determine if K. brevis was sensing changes in specific ions within seawater (K+, Cl- or Ca2+), we systematically removed one ion while keeping the remaining ions at equivalent molar concentration for salinity of 35. Dilution in seawater K+ concentrations triggered the production of brevetoxins, increasing production ?44%. Ecosystem changes due to climate change have increased the production of toxins in other HAB species; here we examined the impact on K. brevis. We have shown that modification of pCO2 level and temperature did not influence brevetoxin production; however, predicted climate change scenarios (increased temperature and pCO2) did significantly increase the growth rate of K. brevis, by 60% at 25C and 55% at 30C. We suggest that K. brevis blooms could benefit from predicted increase in pCO2 over the next 100 years. Overall, our findings close a critical gap in knowledge regarding the function of brevetoxin in K. brevis by identifying a connection between brevetoxin production and osmoacclimation.

Errera, Reagan Michelle

2013-05-01T23:59:59.000Z

367

High-resolution stratigraphic and structural characterization of the fault-partitioned Hickory Sandstone aquifer system, Mason County, central Texas  

E-Print Network (OSTI)

The Hickory Sandstone is an important aquifer in central Texas and is partitioned by faults that impede cross-fault fluid flow. This study provides a detailed stratigraphic and structural model in the vicinity of a normal, oblique-slip fault with 60' (18.3 m) of stratigraphic throw. The model is developed using 3500' (1050 m) of continuous core and geophysical logs from eleven closely spaced boreholes. The local stratigraphy is studied in detail and environments of deposition inferred. A model of fault evolution is inferred using the observed fault structure and throw distributions. Locally, the Hickory Sandstone consists of 450' (137 m) of Cambrian-aged, quartzose and arkosic sandstone with localized mudstone and siltstone interbeds and overlies Precambrian Town Mountain Granite. Within the study area, the Hickory Sandstone is subdivided into four facies: the cross-bedded facies, the mudstone facies, the interbedded sandstone facies and the hematite facies. These facies form a stacked sequence representing an initial braided-stream fluvial environment that grades into a high energy, open marine environment that closely matches the tide-dominated, high microtidal estuarine model of Reinson (1992). Lateral correlation of strata packages in the cross-bedded facies was very difficult and complicated development of the fault model. The study fault is a linked fault system consisting of several major segments. Two segments overlap and locally hard link along both strike and dip. The major fault segments also consist of several linked subsegments. Net stratigraphic throw decreases slightly upward from a maximum of 60' (18.3 m) near the granite basement. Where the major segments overlap, the throw exhibits systematic variations consistent with displacement transfer between the neighboring segments. The linked fault system is inferred to have formed by interaction and linkage of two, early, en echelon basement faults. Ultimately these faults propagated upward and laterally into the overlying Hickory Sandstone, interacted and partially hard-linked, producing a large linkage structure that affected subsequent, neighboring hanging wall deformation. Subsidiary small faults are common but do not exhibit simple spatial relations with the large fault segments. There is only a weak correlation between a fault's shear zone thickness and stratigraphic throw for faults with 1' to 60' (0.3 to 18.3 m) of throw.

Wilson, Jason Steven

2001-01-01T23:59:59.000Z

368

Review and problem definition of water/rock reactions associated with injection of spent geothermal fluids from a geothermal plant into aquifers  

DOE Green Energy (OSTI)

Among the technical problems faced by the burgeoning geothermal industry is the disposal of spent fluids from power plants. Except in unusual circumstances the normal practice, especially in the USA, is to pump these spent fluids into injection wells to prevent contamination of surface waters, and possibly in some cases, to reduce pressure drawdown in the producing aquifers. This report is a survey of experience in geothermal injection, emphasizing geochemical problems, and a discussion of approaches to their possible mitigation. The extraction of enthalpy from geothermal fluid in power plants may cause solutions to be strongly supersaturated in various dissolved components such as silica, carbonates, sulfates, and sulfides. Injection of such supersaturated solutions into disposal wells has the potential to cause scaling in the well bores and plugging of the aquifers, leading to loss of injectivity. Various aspects of the geochemistry of geothermal brines and their potential for mineral formation are discussed, drawing upon a literature survey. Experience of brine treatment and handling, and the economics of mineral extraction are also addressed in this report. Finally suggestions are made on future needs for possible experimental, field and theoretical studies to avoid or control mineral scaling.

Elders, W.A.

1986-07-01T23:59:59.000Z

369

Potential Impacts of Leakage from Black Rock Reservoir on the Hanford Site Unconfined Aquifer: Initial Hypothetical Simulations of Flow and Contaminant Transport  

Science Conference Proceedings (OSTI)

Initial scoping calculations of the unconfined aquifer at the Hanford Site were carried out for the U.S. Bureau of Reclamation (USBR) to investigate the potential impacts on the Hanford unconfined aquifer that would result from leakage from the proposed Black Rock Reservoir to the west. Although impacts on groundwater flow and contaminant transport were quantified based on numerical simulation results, the investigation represented a qualitative assessment of the potential lateral recharge that could result in adverse effects on the aquifer. Because the magnitude of the potential leakage is unknown, hypothetical bounding calculations were performed. When a quantitative analysis of the magnitude of the potential recharge from Black Rock Reservoir is obtained, the hydrologic impacts analysis will be revisited. The analysis presented in this report represents initial bounding calculations. A maximum lateral recharge (i.e., upland flux) was determined in the first part of this study by executing steady-state flow simulations that raised the water table no higher than the elevation attained in the Central Plateau during the Hanford operational period. This metric was selected because it assumed a maximum remobilization of contaminants that existed under previous fully saturated conditions. Three steady-state flow fields were then used to analyze impacts to transient contaminant transport: a maximum recharge (27,000 acre-ft/yr), a no additional flux (365 acre-ft/yr), and an intermediate recharge case (16,000 acre-ft/yr). The transport behavior of four radionuclides was assessed for a 300 year simulation period with the three flow fields. The four radionuclides are tritium, iodine-129, technetium-99, and uranium-238. Transient flow and transport simulations were used to establish hypothetical concentration distributions in the subsurface. Using the simulated concentration distributions in 2005 as initial conditions for steady-state flow runs, simulations were executed to investigate the relative effects on contaminant transport from the increased upland fluxes. Contaminant plumes were analyzed for 1) peak concentrations and arrival times at downstream points of compliance, 2) the area of the aquifer contaminated at or above the drinking water standard (DWS), and 3) the total activity remaining in the domain at the end of the simulation. In addition to this analysis, unit source release simulations from a hypothetical tracer were executed to determine relative travel times from the Central Plateau. The results of this study showed that increases in the lateral recharge had limited impact on regional flow directions but accelerated contaminant transport. Although contaminant concentrations may have initially increased for the more mobile contaminants (tritium, technetium-99, and iodine-129), the accelerated transport caused dilution and a more rapid decline in concentrations relative to the Base Case (no additional flux). For the low-mobility uranium-238, higher lateral recharge caused increases in concentration, but these concentrations never approached the DWS. In this preliminary investigation, contaminant concentrations did not exceed the DWS study metric. With the increases in upland fluxes, more mass was transported out of the aquifer, and concentrations were diluted with respect to the base case where no additional flux was considered.

Freedman, Vicky L.

2008-01-30T23:59:59.000Z

370

NETL: Oil & Natural Gas Technologies Reference Shelf - Presentation...  

NLE Websites -- All DOE Office Websites (Extended Search)

is the fresh to slightly saline Birds-Nest aquifer. This aquifer is located in the oil shale zone of the Green River formations Parachute Creek member and is 200 to 300 ft...

371

An Event in Water Exchange between Continental Shelf and the Kuroshio off Southern Japan: Lagrangian Tracking of a Low-Salinity Water Mass on the Kuroshio  

Science Conference Proceedings (OSTI)

Low-salinity water masses were occasionally observed in spring and summer on the surface of the Kuroshio, south of Japan. Many of the masses were accompanied by excessive discharge of fresh water from major rivers in southern Japan and were ...

Norihisa Imasato; Bo Qiu

1987-07-01T23:59:59.000Z

372

A Model for the Thickness and Salinity of the Upper Layer in the Arctic Ocean and the Relationship between the Ice Thickness and Some External Parameters  

Science Conference Proceedings (OSTI)

This paper presents a dynamical model for the salinity and thickness of the upper layer in the Arctic. The parameters are the river runoff to the Arctic, the buoyancy supply through the Bering Strait, the export of ice from the Arctic and a ...

Anders Stigebrandt

1981-10-01T23:59:59.000Z

373

Implementation of a 3-D groundwater flow model in a semi-arid region using MODFLOW and GIS tools: The Zramdine-Bni Hassen Miocene aquifer system (east-central Tunisia)  

Science Conference Proceedings (OSTI)

In this work, an integrated methodology was developed to investigate hydrological processes in Zeramdine-Beni Hassen Miocene aquifer and to validate the groundwater proprieties deduced from the geological, geophysical, hydrodynamic and hydrochemical ... Keywords: Geographic information system, Groundwater modeling, Hydrogeology, MODFLOW

Fethi Lachaal; Ammar Mlayah; Mourad BDir; Jamila Tarhouni; Christian Leduc

2012-11-01T23:59:59.000Z

374

Depth and temporal variations in water quality of the Snake River Plain aquifer in well USGS-59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory  

SciTech Connect

In-situ measurements of the specific conductance and temperature of ground water in the Snake River Plain aquifer were collected in observation well USGS-59 near the Idaho Chemical Processing Plant at the Idaho National Engineering and Environmental Laboratory. These parameters were monitored at various depths in the aquifer from October 1994 to August 1995. The specific conductance of ground water in well USGS-59, as measured in the borehole, ranged from about 450 to 900 {micro}S/cm at standard temperature (25 C). The pumping cycle of the production wells at the Idaho Chemical Processing Plant causes changes in borehole circulation patterns, and as a result the specific conductance of ground water at some depths in the well varies by up to 50% over a period of about 14 hours. However, these variations were not observed at all depths, or during each pumping cycle. The temperature of ground water in the well was typically between 12.8 and 13.8 C. The results of this study indicate that temporal variations in specific conductance of the ground water at this location are caused by an external stress on the aquifer--pumping of a production well approximately 4,000 feet away. These variations are believed to result from vertical stratification of water quality in the aquifer and a subsequent change in intrawell flow related to pumping. When sampling techniques that do not induce a stress on the aquifer (i.e., thief sampling) are used, knowledge of external stresses on the system at the time of sampling may aid in the interpretation of geochemical data.

Frederick, D.B. [Idaho INEL Oversight Program, Boise, ID (United States); Johnson, G.S. [Univ. of Idaho, Moscow, ID (United States). Dept. of Geology and Geological Engineering

1997-03-01T23:59:59.000Z

375

Mating behaviour, epibiotic growth, and the effect of salinity on grooming activity in the hermaphroditic shrimp Lysmata wurdemanni  

E-Print Network (OSTI)

Many species of caridean shrimp are protandrous hermaphrodites, maturing initially as males but developing into females as they age and grow. A unique sexual system was recently discovered in the peppermint shrimp, Lysmata wurdemanni. In this species, individuals are initially male, but become simultaneous functional hermaphrodites over time. As in most caridean shrimp, L. wurdemanni can mate as a male during the intermoult period, but can reproduce through female function for only a short period after moulting. Ecdysis does not occur en masse in this species, and thus the operational sex ratio found in populations of L. wurdemanni is extremely male-biased. Sexual selection theory suggests that these conditions will result in increased competition for access to mates. Evolutionary pressures should therefore have selected for mechanisms that permit individuals to quickly identify and locate potential mating partners. L. wurdemanni were exposed to chemical stimuli collected from recently moulted conspecifics of varying reproductive condition. Test animals were able to distinguish among the different conditions, and physically manipulated only the plastic nozzle used to pump solutions collected from shrimp with ovaries filled with vitellogenic oocytes. It was subsequently hypothesized that methyl farnesoate, a hormone associated with ovarian maturation in crustaceans, might be a key component of sex pheromones used by L. wurdemanni. However, a series of methyl farnesoate concentrations did not elicit responses, indicating this species does not use this hormone alone when determining reproductive condition. Reproductive behaviour in L. wurdemanni was observed to differ both before and after copulation, as well as with increasing population density. Intermoult individuals were more likely to approach, follow and remain in the vicinity of a near-moult shrimp before mating could occur, and under high density conditions. The near-moult shrimp approached conspecifics only under low density conditions, and performed rapid escape behaviours only after copulation had occurred. The unusual occurrence of epibiota upon L. wurdemanni was described, and the location, size and age of barnacles quantified. The effect of salinity upon grooming activities was tested. Results indicated that carapace grooming was depressed at low salinities, and could account for the considerable epibiota found in this region.

Giri, Tuhin

2003-08-01T23:59:59.000Z

376

Aquifer Testing Recommendations for Well 299-W15-225: Supporting Phase I of the 200-ZP-1 Groundwater Operable Unit Remedial Design  

Science Conference Proceedings (OSTI)

Aquifer characterization needs are currently being assessed to optimize pump-and-treat remedial strategies within the 200-ZP-1 Operable Unit (OU), specifically for the immediate area of the 241-TX-TY Tank Farm. Currently, 14 extraction wells are actively used in the Interim Record of Decision ZP-1 pump-and-treat system to remediate the existing groundwater contamination within this general area. Four of these wells (299-W15-40, 299-W15-43, 299-W15-44, and 299-W15-765) are targeted to remediate contamination within the immediate 241-TX-TY Tank Farm area. The major contaminant of concern (COC) for the 200-ZP-1 OU is carbon tetrachloride. Other COCs include total chromium (trivalent [III] and hexavalent [VI], nitrate, trichloroethlyene, iodine-129, technetium-99, and tritium.

Spane, Frank A.; Newcomer, Darrell R.

2009-03-10T23:59:59.000Z

377

EA-1482: Final Environmental Assessment | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assessment EA-1482: Final Environmental Assessment Pilot Experiment for Geological Sequestration of Carbon Dioxide in Saline Aquifer Brine Formations The U.S. Department of...

378

Kansas | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate Regional Carbon Dioxide Sequestration Potential of Ozark Plateau...

379

Project Title  

NLE Websites -- All DOE Office Websites (Extended Search)

and characterize risks and risk preventionmitigation steps, and estimate associated costs to safely store CO 2 in deep saline aquifers (DSA), enhanced oil recovery (EOR) and...

380

NETL: News Release - Energy Department Launches Thirteen New...  

NLE Websites -- All DOE Office Websites (Extended Search)

Potential CO2 sequestration targets include producing and depleted oil and gas fields, unconventional oil and gas reservoirs, uneconomic coal seams, and saline aquifers. These,...

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Reactive transport modeling of geologic CO2 sequestration in...  

NLE Websites -- All DOE Office Websites (Extended Search)

Sleipner facility, where properties of the waste stream, target saline aquifer, and shale cap rock are relatively well constrained. The principle goal has been to discover and...

382

Glossary - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Uranium fuel, nuclear reactors, generation, spent fuel. Total Energy. ... such as oil and natural gas fields, saline aquifers, or abandoned coal mines ...

383

State Geological Surveys, will test the viability of turning...  

NLE Websites -- All DOE Office Websites (Extended Search)

may be required.) "Geochemical effects of CO 2 sequestration in sandstones under simulated in-situ conditions of deep saline aquifers." The geochemical effects of brine and...

384

Microsoft PowerPoint - Proceedings Cover Sheets  

NLE Websites -- All DOE Office Websites (Extended Search)

saline aquifer and EOR with sequestration; (b) ECBM with sequestration, with produced water desalination, and terrestrial riparian restoration sequestration; (c) EOR with...

385

H2O[underscore]TREAT users' manual: An aid for evaluating water treatment requirements for aquifer thermal energy storage systems  

DOE Green Energy (OSTI)

This manual addresses the use of a public-domain software package developed to aid engineers in the desip of water treatment systems for aquifer thermal energy storage (ATES). The software, H20[underscore]TREAT, which runs in the DOS or UNIX Environment, was developed by the Pacific Northwest Laboratory and targeted to engineers possessing limited or no experience in geochemistry. To do this, the software provides guidance on geochemical phenomena that can cause problems in ATES systems (i.e., the formation of scale in heat exchangers, clogging of wells, corrosion in piping and heat exchangers, and degradation of aquifer materials causing a reduction in permeability). Preventing such problems frequently requires the use of water treatment systems. Because individual water treatment methods vary in cost, effectiveness, environmental impact, corrosion potential, and acceptability to regulators, proper evaluation of treatment options is required to determine the feasibility of ATES systems. The software is available for DOS- and UNIX-based computers. It uses a recently revised geochemical model, MINTEQ, to calculate the saturation indices of selected carbonate, oxide, and hydroxide minerals based on water chemistry and temperature data provided by the user. The saturation index of a specific mineral defines the point at which that mineral is oversaturated and hence may precipitate at the specified temperature. Cost calculations are not performed by the software; however, treatment capacity requirements are provided. Treatments include Na and H ion exchanger, fluidized-bed heat exchanger or pellet reactors, and CO[sub 2] injection. The H2O[underscore]TREAT software also provides the user with warning of geochemical problems that must be addressed, such as Fe and Mn oxide precipitation, SiO[sub 2] precipitation at high temperatures, corrosion, and clay swelling and dispersion.

Vail, L.W.; Jenne, E.A.; Zipperer, J.P.; McKinley, M.I.

1993-02-01T23:59:59.000Z

386

H2O{underscore}TREAT users` manual: An aid for evaluating water treatment requirements for aquifer thermal energy storage systems  

DOE Green Energy (OSTI)

This manual addresses the use of a public-domain software package developed to aid engineers in the desip of water treatment systems for aquifer thermal energy storage (ATES). The software, H20{underscore}TREAT, which runs in the DOS or UNIX Environment, was developed by the Pacific Northwest Laboratory and targeted to engineers possessing limited or no experience in geochemistry. To do this, the software provides guidance on geochemical phenomena that can cause problems in ATES systems (i.e., the formation of scale in heat exchangers, clogging of wells, corrosion in piping and heat exchangers, and degradation of aquifer materials causing a reduction in permeability). Preventing such problems frequently requires the use of water treatment systems. Because individual water treatment methods vary in cost, effectiveness, environmental impact, corrosion potential, and acceptability to regulators, proper evaluation of treatment options is required to determine the feasibility of ATES systems. The software is available for DOS- and UNIX-based computers. It uses a recently revised geochemical model, MINTEQ, to calculate the saturation indices of selected carbonate, oxide, and hydroxide minerals based on water chemistry and temperature data provided by the user. The saturation index of a specific mineral defines the point at which that mineral is oversaturated and hence may precipitate at the specified temperature. Cost calculations are not performed by the software; however, treatment capacity requirements are provided. Treatments include Na and H ion exchanger, fluidized-bed heat exchanger or pellet reactors, and CO{sub 2} injection. The H2O{underscore}TREAT software also provides the user with warning of geochemical problems that must be addressed, such as Fe and Mn oxide precipitation, SiO{sub 2} precipitation at high temperatures, corrosion, and clay swelling and dispersion.

Vail, L.W.; Jenne, E.A.; Zipperer, J.P.; McKinley, M.I.

1993-02-01T23:59:59.000Z

387

Implications for the creation of warm saline deep water: Late Paleocene reconstructions and global climate model simulations  

SciTech Connect

A global warming trend began during the late Paleocene that culminated in the early Eocene with the highest global temperatures of the Cenozoic. We have reconstructed late Paleocene surfacial boundary conditions and modeled atmospheric conditions using the Goddard Institute for Space Studies general circulation model version II (GISS GCM II). These experiments were conducted to test the hypothesis that warm saline deep water formed during the late paleocene and to understand atmospheric circulation near the beginning of a period of global warming. The warming is attributed primarily to increased sea surface temperatures at high latitudes. The sensitivity of the climate to ocean temperature was tested using two sea surface temperature distributions, each delimited latitudinally by oxygen isotope values, but with different east-west gradients. The simulations discussed here contain several features unique among warm climate experiments. The first experiment (P-1) used latitudinally constant (zonal) sea surface temperatures. The zonally distributed sea surface temperatures strengthen the general circulation of the atmosphere. In particular, Hadley Cell circulation is intensified, leading to extremes of precipitation in the equatorial region and extreme evaporation across subtropical oceans. The unusual results prompted a second experiment with modern east-west sea surface temperature gradients superimposed and referred to as P-Gradient (P-Grad). 84 refs., 10 figs., 4 tabs.

O`Connell, S. [Wesleyan Univ., Middletown, CT (United States); Chandler, M.A. [Columbia Univ., New York, NY (United States)]|[Goddard Inst. of Space Studies, New York, NY (United States); Ruedy, R. [Goddard Inst. of Space Studies, New York, NY (United States)

1996-03-01T23:59:59.000Z

388

Solar heating and hot water system installed at Southeast of Saline, Unified School District 306, Mentor, Kansas  

DOE Green Energy (OSTI)

A cooperative agreement was negotiated in April 1978 for the installation of a space and domestic hot water system at Southeast of Saline, Kansas Unified School District 306, Mentor, Kansas. The solar system was installed in a new building and was designed to provide 52 percent of the estimated annual space heating load and 84 percent of the estimated annual potable hot water requirement. The collectors are liquid flat plate. They are ground-mounted and cover a total area of 5125 square feet. The system will provide supplemental heat for the school's closed-loop water-to-air heat pump system and domestic hot water. The storage medium is water inside steel tanks with a capacity of 11,828 gallons for space heating and 1,600 gallons for domestic hot water. This final report, which describes in considerable detail the solar heating facility, contains detailed drawings of the completed system. The facility was declared operational in September 1978, and has functioned successfully since.

Not Available

1979-07-01T23:59:59.000Z

389

THE OHIO RIVER VALLEY CO2 STORAGE PROJECT - PRELIMINARY ASSESSMENT OF DEEP SALINE RESERVOIRS AND COAL SEAMS  

SciTech Connect

This report describes the geologic setting for the Deep Saline Reservoirs and Coal Seams in the Ohio River Valley CO{sub 2} Storage Project area. The object of the current project is to site and design a CO{sub 2} injection facility. A location near New Haven, WV, has been selected for the project. To assess geologic storage reservoirs at the site, regional and site-specific geology were reviewed. Geologic reports, deep well logs, hydraulic tests, and geologic maps were reviewed for the area. Only one well within 25 miles of the site penetrates the deeper sedimentary rocks, so there is a large amount of uncertainty regarding the deep geology at the site. New Haven is located along the Ohio River on the border of West Virginia and Ohio. Topography in the area is flat in the river valley but rugged away from the Ohio River floodplain. The Ohio River Valley incises 50-100 ft into bedrock in the area. The area of interest lies within the Appalachian Plateau, on the western edge of the Appalachian Mountain chain. Within the Appalachian Basin, sedimentary rocks are 3,000 to 20,000 ft deep and slope toward the southeast. The rock formations consist of alternating layers of shale, limestone, dolomite, and sandstone overlying dense metamorphic continental shield rocks. The Rome Trough is the major structural feature in the area, and there may be some faults associated with the trough in the Ohio-West Virginia Hinge Zone. The area has a low earthquake hazard with few historical earthquakes. Target injection reservoirs include the basal sandstone/Lower Maryville and the Rose Run Sandstone. The basal sandstone is an informal name for sandstones that overlie metamorphic shield rock. Regional geology indicates that the unit is at a depth of approximately 9,100 ft below the surface at the project site and associated with the Maryville Formation. Overall thickness appears to be 50-100 ft. The Rose Run Sandstone is another potential reservoir. The unit is located approximately 1,100 ft above the basal sandstone and is 100-200 ft thick. The storage capacity estimates for a 20-mile radius from the injection well ranged from 39-78 million tons (Mt) for each formation. Several other oil and gas plays have hydraulic properties conducive for injection, but the formations are generally only 5-50 ft thick in the study area. Overlying the injection reservoirs are thick sequences of dense, impermeable dolomite, limestone, and shale. These layers provide containment above the potential injection reservoirs. In general, it appears that the containment layers are much thicker and extensive than the injection intervals. Other physical parameters for the study area appear to be typical for the region. Anticipated pressures at maximum depths are approximately 4,100 psi based on a 0.45 psi/ft pressure gradient. Temperatures are likely to be 150 F. Groundwater flow is slow and complex in deep formations. Regional flow directions appear to be toward the west-northwest at less than 1 ft per year within the basal sandstone. Vertical gradients are downward in the study area. A review of brine geochemistry indicates that formation fluids have high salinity and dissolved solids. Total dissolved solids ranges from 200,000-325,000 mg/L in the deep reservoirs. Brine chemistry is similar throughout the different formations, suggesting extensive mixing in a mature basin. Unconsolidated sediments in the Ohio River Valley are the primary source of drinking water in the study area.

Michael J. Mudd; Howard Johnson; Charles Christopher; T.S. Ramakrishnan, Ph.D.

2003-08-01T23:59:59.000Z

390

Modeling of fate and transport of co-injection of H2S with CO2 in deep saline formations  

SciTech Connect

The geological storage of CO{sub 2} in deep saline formations is increasing seen as a viable strategy to reduce the release of greenhouse gases into the atmosphere. However, costs of capture and compression of CO{sub 2} from industrial waste streams containing small quantities of sulfur and nitrogen compounds such as SO{sub 2}, H{sub 2}S and N{sub 2} are very expensive. Therefore, studies on the co-injection of CO{sub 2} containing other acid gases from industrial emissions are very important. In this paper, numerical simulations were performed to study the co-injection of H{sub 2}S with CO{sub 2} in sandstone and carbonate formations. Results indicate that the preferential dissolution of H{sub 2}S gas (compared with CO{sub 2} gas) into formation water results in the delayed breakthrough of H{sub 2}S gas. Co-injection of H{sub 2}S results in the precipitation of pyrite through interactions between the dissolved H{sub 2}S and Fe{sup 2+} from the dissolution of Fe-bearing minerals. Additional injection of H{sub 2}S reduces the capabilities for solubility and mineral trappings of CO{sub 2} compared to the CO{sub 2} only case. In comparison to the sandstone (siliciclastic) formation, the carbonate formation is less favorable to the mineral sequestration of CO{sub 2}. Different from CO{sub 2} mineral trapping, the presence of Fe-bearing siliciclastic and/or carbonate is more favorable to the H{sub 2}S mineral trapping.

Zhang, W.; Xu, T.; Li, Y.

2010-12-15T23:59:59.000Z

391

Salinity Management Desalination Technology  

E-Print Network (OSTI)

, the latter determined by the thickness of the spacer gaskets. Since the calcium fluoride windows were found that enables the fluid to be reused for many 100 expo- sure fields will be both necessary and possible

Scott, Christopher

392

The in-situ decontamination of sand and gravel aquifers by chemically enhanced solubilization of multiple-compound DNAPLs with surfactant solutions: Phase 1 -- Laboratory and pilot field-scale testing and Phase 2 -- Solubilization test and partitioning and interwell tracer tests. Final report  

Science Conference Proceedings (OSTI)

Laboratory, numerical simulation, and field studies have been conducted to assess the potential use of micellar-surfactant solutions to solubilize chlorinated solvents contaminating sand and gravel aquifers. Ninety-nine surfactants were screened for their ability to solubilize trichloroethene (TCE), perchloroethylene (PCE), and carbon tetrachloride (CTET). The field test was conducted in the alluvial aquifer which is located 20 to 30 meters beneath a vapor degreasing operation at Paducah Gaseous Diffusion Plant. This aquifer has become contaminated with TCE due to leakage of perhaps 40,000 liters of TCE, which has generated a plume of dissolved TCE extending throughout an area of approximately 3 km{sup 2} in the aquifer. Most of the TCE is believed to be present in the overlying lacustrine deposits and in the aquifer itself as a dense, non-aqueous phase liquid, or DNAPL. The objective of the field test was to assess the efficacy of the surfactant for in situ TCE solubilization. Although the test demonstrated that sorbitan monooleate was unsuitable as a solubilizer in this aquifer, the single-well test was demonstrated to be a viable method for the in situ testing of surfactants or cosolvents prior to proceeding to full-scale remediation.

NONE

1997-10-24T23:59:59.000Z

393

Results of 2001 Groundwater Sampling in Support of Conditional No Longer Contained-In Determination for the Snake River Plain Aquifer in the Vicinity of the Idaho Nuclear Technology and Engineering Center  

SciTech Connect

This report summarizes the results of sampling five groundwater monitoring wells in the vicinity of the Idaho Nuclear Technology and Engineering Center at the Idaho National Engineering and Environmental Laboratory in 2001. Information on general sampling practices, quality assurance practices, parameter concentrations, representativeness of sampling results, and cumulative cancer risk are presented. The information is provided to support a conditional No Longer Contained-In Determination for the Snake River Plain Aquifer in the vicinity of the Idaho Nuclear Technology and Engineering Center.

Meachum, T.R.

2002-04-26T23:59:59.000Z

394

Analysis of Hydraulic Responses from the ER-6-1 Multiple-Well Aquifer Test, Yucca Flat FY 2004 Testing Program, Nevada Test Site, Nye County, Nevada, Rev. No.: 0  

Science Conference Proceedings (OSTI)

This report documents the interpretation and analysis of the hydraulic data collected for the Fiscal Year (FY) 2004 Multiple-Well Aquifer Test-Tracer Test (MWAT-TT) conducted at the ER-6-1 Well Cluster in Yucca Flat Corrective Action Unit (CAU) 97, on the Nevada Test Site (NTS). The MWAT-TT was performed to investigate CAU-scale groundwater flow and transport processes related to the transport of radionuclides from sources on the NTS through the Lower Carbonate Aquifer (LCA) Hydrostratigraphic Unit (HSU). The ER-6-1 MWAT-TT was planned and executed by contractor participants for the Underground Test Area (UGTA) Project of the Environmental Restoration (ER) program of the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO). Participants included Stoller-Navarro Joint Venture (SNJV), the Environmental Engineering Services Contractor; Bechtel Nevada (BN); the Desert Research Institute (DRI); Los Alamos National Laboratory; and the University of Nevada, Las Vegas-Harry Reid Center. The SNJV team consists of the S.M. Stoller Corporation, Navarro Research and Engineering, Battelle Memorial Institute, INTERA Inc., and Weston Solutions, Inc. The MWAT-TT was implemented according to the ''Underground Test Area Project, ER-6-1 Multi-Well Aquifer Test - Tracer Test Plan'' (SNJV, 2004a) issued in April 2004. The objective of the aquifer test was to determine flow processes and local hydraulic properties for the LCA through long-term constant-rate pumping at the well cluster. This objective was to be achieved in conjunction with detailed sampling of the composite tracer breakthrough at the pumping well, as well as with depth-specific sampling and logging at multiple wells, to provide information for the depth-discrete analysis of formation hydraulic properties, particularly with regard to fracture properties.

Greg Ruskauff

2005-06-01T23:59:59.000Z

395

User manual for AQUASTOR: a computer model for cost analysis of aquifer thermal energy storage coupled with district heating or cooling systems. Volume I. Main text  

DOE Green Energy (OSTI)

A computer model called AQUASTOR was developed for calculating the cost of district heating (cooling) using thermal energy supplied by an aquifer thermal energy storage (ATES) system. The AQUASTOR model can simulate ATES district heating systems using stored hot water or ATES district cooling systems using stored chilled water. AQUASTOR simulates the complete ATES district heating (cooling) system, which consists of two principal parts: the ATES supply system and the district heating (cooling) distribution system. The supply system submodel calculates the life-cycle cost of thermal energy supplied to the distribution system by simulating the technical design and cash flows for the exploration, development, and operation of the ATES supply system. The distribution system submodel calculates the life-cycle cost of heat (chill) delivered by the distribution system to the end-users by simulating the technical design and cash flows for the construction and operation of the distribution system. The model combines the technical characteristics of the supply system and the technical characteristics of the distribution system with financial and tax conditions for the entities operating the two systems into one techno-economic model. This provides the flexibility to individually or collectively evaluate the impact of different economic and technical parameters, assumptions, and uncertainties on the cost of providing district heating (cooling) with an ATES system. This volume contains the main text, including introduction, program description, input data instruction, a description of the output, and Appendix H, which contains the indices for supply input parameters, distribution input parameters, and AQUASTOR subroutines.

Huber, H.D.; Brown, D.R.; Reilly, R.W.

1982-04-01T23:59:59.000Z

396

Compressed air energy storage: preliminary design and site development program in an aquifer. Final draft, Task 1: establish facility design criteria and utility benefits  

SciTech Connect

Compressed air energy storage (CAES) has been identified as one of the principal new energy storage technologies worthy of further research and development. The CAES system stores mechanical energy in the form of compressed air during off-peak hours, using power supplied by a large, high-efficiency baseload power plant. At times of high electrical demand, the compressed air is drawn from storage and is heated in a combustor by the burning of fuel oil, after which the air is expanded in a turbine. In this manner, essentially all of the turbine output can be applied to the generation of electricity, unlike a conventional gas turbine which expends approximately two-thirds of the turbine shaft power in driving the air compressor. The separation of the compression and generation modes in the CAES system results in increased net generation and greater premium fuel economy. The use of CAES systems to meet the utilities' high electrical demand requirements is particularly attractive in view of the reduced availability of premium fuels such as oil and natural gas. This volume documents the Task 1 work performed in establishing facility design criteria for a CAES system with aquifer storage. Information is included on: determination of initial design bases; preliminary analysis of the CAES system; development of data for site-specific analysis of the CAES system; detailed analysis of the CAES system for three selected heat cycles; CAES power plant design; and an economic analysis of CAES.

1980-10-01T23:59:59.000Z

397

Review of the aquifer seasonal thermal energy storage building HVAC system at the Melville, New York, Mid-Island Mail Facility  

DOE Green Energy (OSTI)

The successful widespread commercialization of aquifer thermal energy storage (ATES) in the United States will depend on the effectiveness with which the experiences gained from early full-scale systems are used as guides in the design, installation and operation of future projects. One such early system from which both anecdotal and quantitative information is available is the Mid-Island Postal Facility in Melville, New York. At this facility, built in the mid-1980s, an ATES system has been integrated with the building's central heating and cooling plant. Cold'' wells are charged with water that is cooled during the winter by heat pump and closed circuit cooler operation. Water from these cold wells is then used to meet the facility's cooling load during the summer, before being pumped back into the ground at Warm'' wells. Dehumidification during summer operation is accomplished by a liquid desiccant system that uses propane boilers to provide a heat source for desiccant regeneration. This system will also add water to the air during periods of low humidity. This paper provides an overview of the project, and describes the analysis being performed to assess energy and economic merits of this innovative system.

Marseille, T.J.; Wilke, D.A.

1992-08-01T23:59:59.000Z

398

Review of the aquifer seasonal thermal energy storage building HVAC system at the Melville, New York, Mid-Island Mail Facility  

DOE Green Energy (OSTI)

The successful widespread commercialization of aquifer thermal energy storage (ATES) in the United States will depend on the effectiveness with which the experiences gained from early full-scale systems are used as guides in the design, installation and operation of future projects. One such early system from which both anecdotal and quantitative information is available is the Mid-Island Postal Facility in Melville, New York. At this facility, built in the mid-1980s, an ATES system has been integrated with the building`s central heating and cooling plant. ``Cold`` wells are charged with water that is cooled during the winter by heat pump and closed circuit cooler operation. Water from these cold wells is then used to meet the facility`s cooling load during the summer, before being pumped back into the ground at ``Warm`` wells. Dehumidification during summer operation is accomplished by a liquid desiccant system that uses propane boilers to provide a heat source for desiccant regeneration. This system will also add water to the air during periods of low humidity. This paper provides an overview of the project, and describes the analysis being performed to assess energy and economic merits of this innovative system.

Marseille, T.J.; Wilke, D.A.

1992-08-01T23:59:59.000Z

399

Field Test Report: Preliminary Aquifer Test Characterization Results for Well 299-W15-225: Supporting Phase I of the 200-ZP-1 Groundwater Operable Unit Remedial Design  

SciTech Connect

This report examines the hydrologic test results for both local vertical profile characterization and large-scale hydrologic tests associated with a new extraction well (well 299-W15-225) that was constructed during FY2009 for inclusion within the future 200-West Area Groundwater Treatment System that is scheduled to go on-line at the end of FY2011. To facilitate the analysis of the large-scale hydrologic test performed at newly constructed extraction well 299-W15-225 (C7017; also referred to as EW-1 in some planning documents), the existing 200-ZP-1 interim pump-and-treat system was completely shut-down ~1 month before the performance of the large-scale hydrologic test. Specifically, this report 1) applies recently developed methods for removing barometric pressure fluctuations from well water-level measurements to enhance the detection of hydrologic test and pump-and-treat system effects at selected monitor wells, 2) analyzes the barometric-corrected well water-level responses for a preliminary determination of large-scale hydraulic properties, and 3) provides an assessment of the vertical distribution of hydraulic conductivity in the vicinity of newly constructed extraction well 299-W15-225. The hydrologic characterization approach presented in this report is expected to have universal application for meeting the characterization needs at other remedial action sites located within unconfined and confined aquifer systems.

Spane, Frank A.; Newcomer, Darrell R.

2009-09-23T23:59:59.000Z

400

DOI 10.1007/s11103-005-7876-2 Sorghum bicolors transcriptome response to dehydration, high salinity and ABA  

E-Print Network (OSTI)

Genome wide changes in gene expression were monitored in the drought tolerant C4 cereal Sorghum bicolor, following exposure of seedlings to high salinity (150 mM NaCl), osmotic stress (20 % polyethylene glycol) or abscisic acid (125 lM ABA). A sorghum cDNA microarray providing data on 12 982 unique gene clusters was used to examine gene expression in roots and shoots at 3- and 27-h post-treatment. Expression of 2200 genes, including 174 genes with currently unknown functions, of which a subset appear unique to monocots and/or sorghum, was altered in response to dehydration, high salinity or ABA. The modulated sorghum genes had homology to proteins involved in regulation, growth, transport, membrane/protein turnover/repair, metabolism, dehydration protection, reactive oxygen scavenging, and plant defense. Real-time PCR was used to quantify changes in relative mRNA abundance for 333 genes that responded to ABA, NaCl or osmotic stress. Osmotic stress inducible sorghum genes identified for the first time included a beta-expansin expressed in shoots, actin depolymerization factor, inositol-3-phosphate synthase, a non-C4 NADP-malic enzyme, oleosin, and three genes homologous to 9-cis-epoxycarotenoid dioxygenase that may be involved in ABA biosynthesis. Analysis of response profiles demonstrated the

Christina D. Buchanan; Sanghyun Lim; Ron A. Salzman; Ioannis Kagiampakis; Daryl T. Morishige; Brock D. Weers; Robert R. Klein; Lee H. Pratt; Marie-miche Le; Patricia E. Klein; John E. Mullet

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

User manual for AQUASTOR: a computer model for cost analysis of aquifer thermal-energy storage oupled with district-heating or cooling systems. Volume II. Appendices  

DOE Green Energy (OSTI)

A computer model called AQUASTOR was developed for calculating the cost of district heating (cooling) using thermal energy supplied by an aquifer thermal energy storage (ATES) system. the AQUASTOR Model can simulate ATES district heating systems using stored hot water or ATES district cooling systems using stored chilled water. AQUASTOR simulates the complete ATES district heating (cooling) system, which consists of two prinicpal parts: the ATES supply system and the district heating (cooling) distribution system. The supply system submodel calculates the life-cycle cost of thermal energy supplied to the distribution system by simulating the technical design and cash flows for the exploration, development, and operation of the ATES supply system. The distribution system submodel calculates the life-cycle cost of heat (chill) delivered by the distribution system to the end-users by simulating the technical design and cash flows for the construction and operation of the distribution system. The model combines the technical characteristics of the supply system and the technical characteristics of the distribution system with financial and tax conditions for the entities operating the two systems into one techno-economic model. This provides the flexibility to individually or collectively evaluate the impact of different economic and technical parameters, assumptions, and uncertainties on the cost of providing district heating (cooling) with an ATES system. This volume contains all the appendices, including supply and distribution system cost equations and models, descriptions of predefined residential districts, key equations for the cooling degree-hour methodology, a listing of the sample case output, and appendix H, which contains the indices for supply input parameters, distribution input parameters, and AQUASTOR subroutines.

Huber, H.D.; Brown, D.R.; Reilly, R.W.

1982-04-01T23:59:59.000Z

402

Effect of irrigation water salinity and sodicity and water table position on water table chemistry beneath Atriplex lentiformis and Hordeum marinum  

SciTech Connect

Coal bed methane (CBM) extraction in Montana and Wyoming's Powder River Basin (PRB) produces large quantities of modestly saline-sodic water. This study assessed effects of irrigation water quality and water table position on water chemistry of closed columns, simulating a perched or a shallow water table. The experiment assessed the potential salt loading in areas where shallow or perched water tables prevent leaching or where artificial drainage is not possible. Water tables were established in sand filled PVC columns at 0.38, 0.76, and1.14 m below the surface, after which columns were planted to one of three species, two halophytic Atriplex spp. and Hordeum marinum Huds. (maritime barley), a glycophyte. As results for the two Atriplex ssp. did not differ much, only results from Atriplex lentiformis (Torn) S. Wats. (big saltbush) and H. marinum are presented. Irrigation water representing one of two irrigation sources was used: Powder River (PR) (electrolytic conductivity (EC) = 0.19 Sm{sup -1}, sodium adsorption ratio (SAR) = 3.5) or CBM water (EC = 0.35 Sm-1, SAR = 10.5). Continuous irrigation with CBM and PR water led to salt loading over time, the extent being proportional to the salinity and sodicity of applied water. Water in columns planted to A. lentiformis with water tables maintained at 0.38 m depth had greater EC and SAR values than those with 0.76 and 1.14 m water table positions. Elevated EC and SAR values most likely reflect the shallow rooted nature of A. lentiformis, which resulted in enhanced ET with the water table close to the soil surface.

Browning, L.S.; Bauder, J.W.; Phelps, S.D. [Montana State University, Bozeman, MT (United States)

2006-04-15T23:59:59.000Z

403

Long-term Variations of CO2 Trapped in Different Mechanisms in Deep Saline Formations: A Case Study of the Songliao Basin, China  

Science Conference Proceedings (OSTI)

The geological storage of CO{sub 2} in deep saline formations is increasing seen as a viable strategy to reduce the release of greenhouse gases to the atmosphere. There are numerous sedimentary basins in China, in which a number of suitable CO{sub 2} geologic reservoirs are potentially available. To identify the multi-phase processes, geochemical changes and mineral alteration, and CO{sub 2} trapping mechanisms after CO{sub 2} injection, reactive geochemical transport simulations using a simple 2D model were performed. Mineralogical composition and water chemistry from a deep saline formation of Songliao Basin were used. Results indicate that different storage forms of CO{sub 2} vary with time. In the CO{sub 2} injection period, a large amount of CO{sub 2} remains as a free supercritical phase (gas trapping), and the amount dissolved in the formation water (solubility trapping) gradually increases. Later, gas trapping decreases, solubility trapping increases significantly due to migration and diffusion of the CO{sub 2} plume, and the amount trapped by carbonate minerals increases gradually with time. The residual CO{sub 2} gas keeps dissolving into groundwater and precipitating carbonate minerals. For the Songliao Basin sandstone, variations in the reaction rate and abundance of chlorite, and plagioclase composition affect significantly the estimates of mineral alteration and CO{sub 2} storage in different trapping mechanisms. The effect of vertical permeability and residual gas saturation on the overall storage is smaller compared to the geochemical factors. However, they can affect the spatial distribution of the injected CO{sub 2} in the formations. The CO{sub 2} mineral trapping capacity could be in the order of ten kilogram per cubic meter medium for the Songliao Basin sandstone, and may be higher depending on the composition of primary aluminosilicate minerals especially the content of Ca, Mg, and Fe.

Zhang, Wei; Li, Yilian; Xu, Tianfu; Cheng, Huilin; Zheng, Yan; Xiong, Peng

2008-06-10T23:59:59.000Z

404

Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers. Ground Water. doi: 10.1111/j.1745-6584.2012.00933.x New Hampshire Department of Environmental Services (NHDES). 2010. Well Development by Hydrofracturing. http://des.nh.gov/o  

E-Print Network (OSTI)

Hydraulic fracturing of deep shale beds to develop natural gas has caused concern regarding the potential for various forms of water pollution. Two potential pathwaysadvective transport through bulk media and preferential flow through fracturescould allow the transport of contaminants from the fractured shale to aquifers. There is substantial geologic evidence that natural vertical flow drives contaminants, mostly brine, to near the surface from deep evaporite sources. Interpretative modeling shows that advective transport could require up to tens of thousands of years to move contaminants to the surface, but also that fracking the shale could reduce that transport time to tens or hundreds of years. Conductive faults or fracture zones, as found throughout the Marcellus shale region, could reduce the travel time further. Injection of up to 15,000,000 L of fluid into the shale generates high pressure at the well, which decreases with distance from the well and with time after injection as the fluid advects through the shale. The advection displaces native fluids, mostly brine, and fractures the bulk media widening existing fractures. Simulated pressure returns to pre-injection levels in about 300 d. The overall system requires from 3 to 6 years to reach a new equilibrium reflecting the significant changes caused by fracking the shale, which could allow advective transport to aquifers in less than 10 years. The rapid expansion of hydraulic fracturing requires that monitoring systems be employed to track the movement of contaminants and that gas wells have a reasonable offset from faults.

Tom Myers

2012-01-01T23:59:59.000Z

405

Working Gas Capacity of Aquifers  

Gasoline and Diesel Fuel Update (EIA)

96,950 396,092 364,228 363,521 367,108 2008-2012 96,950 396,092 364,228 363,521 367,108 2008-2012 Alabama 0 2012-2012 Arkansas 0 2012-2012 California 0 0 2009-2012 Colorado 0 2012-2012 Illinois 244,900 252,344 216,132 215,017 215,594 2008-2012 Indiana 19,978 19,367 19,437 19,479 19,215 2008-2012 Iowa 87,350 87,414 90,613 91,113 90,313 2008-2012 Kansas 0 2012-2012 Kentucky 6,629 6,629 6,629 6,629 6,629 2008-2012 Louisiana 0 2012-2012 Michigan 0 2012-2012 Minnesota 2,000 2,000 2,000 2,000 2,000 2008-2012 Mississippi 0 2012-2012 Missouri 11,276 3,040 3,656 6,000 6,000 2008-2012 Montana 0 2012-2012 New Mexico 0 2012-2012 New York 0 2012-2012 Ohio 0 2012-2012 Oklahoma 31 2012-2012 Oregon 0 2012-2012 Pennsylvania 942 2012-2012 Tennessee 0 2012-2012 Texas 0 2012-2012 Utah 948 948 939 939 948 2008-2012

406

Working Gas Capacity of Aquifers  

U.S. Energy Information Administration (EIA) Indexed Site

96,950 396,092 364,228 363,521 367,108 2008-2012 96,950 396,092 364,228 363,521 367,108 2008-2012 Alabama 0 2012-2012 Arkansas 0 2012-2012 California 0 0 2009-2012 Colorado 0 2012-2012 Illinois 244,900 252,344 216,132 215,017 215,594 2008-2012 Indiana 19,978 19,367 19,437 19,479 19,215 2008-2012 Iowa 87,350 87,414 90,613 91,113 90,313 2008-2012 Kansas 0 2012-2012 Kentucky 6,629 6,629 6,629 6,629 6,629 2008-2012 Louisiana 0 2012-2012 Michigan 0 2012-2012 Minnesota 2,000 2,000 2,000 2,000 2,000 2008-2012 Mississippi 0 2012-2012 Missouri 11,276 3,040 3,656 6,000 6,000 2008-2012 Montana 0 2012-2012 New Mexico 0 2012-2012 New York 0 2012-2012 Ohio 0 2012-2012 Oklahoma 31 2012-2012 Oregon 0 2012-2012 Pennsylvania 942 2012-2012 Tennessee 0 2012-2012 Texas 0 2012-2012 Utah 948 948 939 939 948 2008-2012

407

Natural Gas Aquifers Storage Capacity  

Gasoline and Diesel Fuel Update (EIA)

1,347,516 1,351,832 1,340,633 1,233,017 1,231,897 1,237,269 1,347,516 1,351,832 1,340,633 1,233,017 1,231,897 1,237,269 1999-2012 Alabama 0 1999-2012 Arkansas 0 1999-2012 California 0 0 1999-2012 Colorado 0 1999-2012 Illinois 876,960 874,384 885,848 772,381 777,294 779,862 1999-2012 Indiana 81,490 81,991 81,328 81,268 81,310 80,746 1999-2012 Iowa 278,238 284,747 284,811 288,010 288,210 288,210 1999-2012 Kansas 0 1999-2012 Kentucky 9,567 9,567 9,567 9,567 9,567 9,567 1999-2012 Louisiana 0 1999-2012 Michigan 0 1999-2012 Minnesota 7,000 7,000 7,000 7,000 7,000 7,000 1999-2012 Mississippi 0 1999-2012 Missouri 32,940 32,876 10,889 11,502 13,845 13,845 1999-2012 Montana 0 1999-2012 New Mexico 0 1999-2012 New York 0 1999-2012 Ohio 0 1999-2012 Oklahoma 170 1999-2012 Oregon 0 1999-2012 Pennsylvania

408

The effects of Biozyme on the germination and emergence of bean (Phaseolus vulgaris L.) and sweet corn (Zea mays L.) seeds under suboptimal temperatures, pesticide overdose, and salinity stress  

E-Print Network (OSTI)

The effect of Biozyme-, a commercial germination stimulant, on the germination and emergence of bean and sweet corn seeds, treated with four levels of Carbofuran and Chlorothalonil, and grown under suboptimal temperatures, was evaluated. Field experiments consisted of two plantings that provided suboptimal temperatures during emergence. Pesticide overdoses caused significant detrimental effects to all emerging seedlings. These effects were magnified under the low temperatures of the first planting. BiozymeTm improved the performance of sweet corn in both plantings. In beans, however, BiozymeTm had negative effects in the first planting, while proving beneficial in the second planting. Growth chamber experiments included, additionally, four levels of salinity. Increasing salinity levels caused decreases in most of the parameters evaluated. Low temperature decreased most growth parameters and in combination with salinity acted synergistically to cause a greater detrimental effect. Pesticide treatment decreased most growth parameters, with the exception of root growth. Sweet corn had a greater tolerance to low temperatures and salinity than beans; however, it proved to be more sensitive to pesticide overdoses. These factors in combination had greater detrimental effects on sweet corn percent germination than each factor alone. Suboptimal temperatures reduced percent germination and germination rate, and increased the time to 50% germination. Mgh salinity levels combined with low temperatures acted synergystically on rate and percent germination. Biozyme increased percent germination, but did not hasten germination rate or days to 50% germination. Biozyme treatment of bean seeds helped them overcome pesticide overdose stress. Aerobic respiration was measured 48 h after imbibition. Respiration rate of bean and sweet corn seeds was reduced by pesticide overdose and decreasing temperatures. Respiratory quotient decreased as temperature decreased and increased as pesticide levels increased. Biozyme-decreased bean respiratory quotient and increased sweet corn respiratory quotient. The increase in the respiratory quotient of bean and sweet corn seeds with increasing levels of pesticide suggests an increase in C02 evolution through a pathway that does not increase O2 uptake.

Campos Cruz, Armando

1994-01-01T23:59:59.000Z

409

Role of crude-oil components in surfactant interaction. [Effect of acids, bases and heavy ends hydrocarbons (alkanes) on the solubilization, optimal salinity and interfacial tension of surfactant systems  

Science Conference Proceedings (OSTI)

Three crude oils from Bell Creek, Bradford, and Delaware-Childers fields were separated into distillates, acids, bases and heavy ends hydrocarbon. The effect of these components on the solubilization, optimal salinity, and bases shifted the optimal salinity significantly; their effects on the solubilization and interfacial tension are smaller. The bases appear to interact with the sulfonates, causing desorption from the interface, phase separation, and higher interfacial tension. The hydrocarbons, as expected have the strongest influence on the properties studied, due to their high concentration. The importance of the chemical nature and molecular weights of these components was also apparent. Even though the product sigma*/sup 2/..gamma.. is not constant, it was found that there is a definite relation between the solubilization (sigma*) and the interfacial tension (..gamma..). This is true even for such complex compounds as acids and bases. 41 references, 6 figures, 14 tables.

Tham, M.K.; Lorenz, P.B.

1983-09-01T23:59:59.000Z

410

Investigation of CO2 plume behavior for a large-scale pilot test of geologic carbon storage in a saline formation  

SciTech Connect

The hydrodynamic behavior of carbon dioxide (CO{sub 2}) injected into a deep saline formation is investigated, focusing on trapping mechanisms that lead to CO{sub 2} plume stabilization. A numerical model of the subsurface at a proposed power plant with CO{sub 2} capture is developed to simulate a planned pilot test, in which 1,000,000 metric tons of CO{sub 2} is injected over a four-year period, and the subsequent evolution of the CO{sub 2} plume for hundreds of years. Key measures are plume migration distance and the time evolution of the partitioning of CO{sub 2} between dissolved, immobile free-phase, and mobile free-phase forms. Model results indicate that the injected CO{sub 2} plume is effectively immobilized at 25 years. At that time, 38% of the CO{sub 2} is in dissolved form, 59% is immobile free phase, and 3% is mobile free phase. The plume footprint is roughly elliptical, and extends much farther up-dip of the injection well than down-dip. The pressure increase extends far beyond the plume footprint, but the pressure response decreases rapidly with distance from the injection well, and decays rapidly in time once injection ceases. Sensitivity studies that were carried out to investigate the effect of poorly constrained model parameters permeability, permeability anisotropy, and residual CO{sub 2} saturation indicate that small changes in properties can have a large impact on plume evolution, causing significant trade-offs between different trapping mechanisms.

Doughty, C.

2009-04-01T23:59:59.000Z

411

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Strategic Center for Coal 2010-2012 Justin Glier 2009-2012 Manhattan, KS Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate Regional CO2...

412

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Strategic Center for Coal 2010-2012 Justin Glier 2009-2012 Lawrence, KS Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate Regional CO2...

413

Aluto-Langano Geothermal Field, Ethiopian Rift Valley- Physical...  

Open Energy Info (EERE)

water as steam and produces a cooler saline shallow aquifer. The high partial pressure of carbon dioxide (about 30 bar in the reservoir) depresses the water table and restricts...

414

Microsoft Word - Simulation and Risk Assessment - Table.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

Processes of Flow, Transport and Storage of CO 2 in Saline Aquifers Colorado School of Mines CO07 The Coal-Seq III Consortium: Advancing the Science of CO 2 Sequestration in...

415

Project Title  

NLE Websites -- All DOE Office Websites (Extended Search)

costs of CO 2 storage in a saline aquifer * Description of model used to estimate costs of CO 2 enhanced oil recovery (EOR) 3 Typical Approach to Benefits Assessment *...

416

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Weatherford FE FE0002056 Strategic Center for Coal 2010-2012 Justin Glier 2009-2012 Sumner Co, KS Modeling CO2 Sequestration in Saline Aquifer and Depleted Oil Reservoir to...

417

Statistical approaches to leak detection for geological sequestration  

E-Print Network (OSTI)

Geological sequestration has been proposed as a way to remove CO? from the atmosphere by injecting it into deep saline aquifers. Detecting leaks to the atmosphere will be important for ensuring safety and effectiveness of ...

Haidari, Arman S

2011-01-01T23:59:59.000Z

418

The lifetime of carbon capture and storage as a climate-change mitigation technology  

E-Print Network (OSTI)

In carbon capture and storage (CCS), CO[subscript 2] is captured at power plants and then injected underground into reservoirs like deep saline aquifers for long-term storage. While CCS may be critical for the continued ...

Szulczewski, Michael Lawrence

419

Arkansas Water Resources Center  

E-Print Network (OSTI)

Alluvial Aquifer, that has resulted from oil and gas operations in the area, particularly in south, discharge from poultry and hog plants, and leaky landfills, among others. Saline water intrusion and near

Soerens, Thomas

420

Basin-Scale Hydrologic Impacts of CO2 Storage: Regulatory and Capacity Implications  

E-Print Network (OSTI)

response to climate change: capacity of deep saline aquifersO.M. , 2007. CO 2 storage capacity estimation: issues andF. , 2008. CO 2 storage capacity calculations for the Dutch

Birkholzer, J.T.

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Evaluation of Confining Layer Integrity Beneath the South District Wastewater Treatment Plant, Miami-Dade Water and Sewer Department, Dade County, Florida  

DOE Green Energy (OSTI)

A review has been performed of existing information that describes geology, hydrogeology, and geochemistry at the South District Wastewater Treatment Plant, which is operated by the Miami-Dade Water and Sewer Department, in Dade County, Florida. Treated sanitary wastewater is injected into a saline aquifer beneath the plant. Detection of contaminants commonly associated with treated sanitary wastewater in the freshwater aquifer that overlies the saline aquifer has indicated a need for a reevaluation of the ability of the confining layer above the saline aquifer to prevent fluid migration into the overlying freshwater aquifer. Review of the available data shows that the geologic data set is not sufficient to demonstrate that a competent confining layer is present between the saline and freshwater aquifers. The hydrogeologic data also do not indicate that a competent confining layer is present. The geochemical data show that the freshwater aquifer is contaminated with treated wastewater, and the spatial patterns of contamination are consistent with upward migration through localized conduits through the Middle Confining Unit, such as leaking wells or natural features. Recommendations for collection and interpretation of additional site characterization data are provided.

Starr, R.C.; Green, T.S.; Hull, L.C.

2001-02-28T23:59:59.000Z

422

Evaluation of Confining Layer Integrity Beneath the South District Wastewater Treatment Plant, Miami-Dade Water and Sewer Department, Dade County, Florida  

Science Conference Proceedings (OSTI)

A review has been performed of existing information that describes geology, hydrogeology, and geochemistry at the South District Wastewater Treatment Plant, which is operated by the Miami-Dade Water and Sewer Department, in Dade County, Florida. Treated sanitary wastewater is injected into a saline aquifer beneath the plant. Detection of contaminants commonly associated with treated sanitary wastewater in the freshwater aquifer that overlies the saline aquifer has indicated a need for a reevaluation of the ability of the confining layer above the saline aquifer to prevent fluid migration into the overlying freshwater aquifer. Review of the available data shows that the geologic data set is not sufficient to demonstrate that a competent confining layer is present between the saline and freshwater aquifers. The hydrogeologic data also do not indicate that a competent confining layer is present. The geochemical data show that the freshwater aquifer is contaminated with treated wastewater, and the spatial patterns of contamination are consistent with upward migration through localized conduits through the Middle Confining Unit, such as leaking wells or natural features. Recommendations for collection and interpretation of additional site characterization data are provided.

Starr, Robert Charles; Green, Timothy Scott; Hull, Laurence Charles

2001-02-01T23:59:59.000Z

423

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ellis County, KS Characterization of Sites for Near Miscible CO2 Applications to Improve Oil Recovery in Arbuckle... Perform a single-well partitioning tracer test to measure...

424

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Proceedings Intern. Conf. Solar Heating and --------------jCPower Generation," on Solar Heating and Cooling, Ed. ,as in the case of solar heating, seasonal storage offers the

Authors, Various

2011-01-01T23:59:59.000Z

425

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

In Switzerland, district heating accounts for 50% of totalproposed hot-water district heating system in the St. Paul/an industrial in a district heating Washington Market and

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

426

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

10 to 15 percent of national energy consumption is feU to be22.5 quads) of national energy consumption there must beenergy conservation- at least 10 percent of national consumption -

Authors, Various

2011-01-01T23:59:59.000Z

427

CO2 Sequestration in Deep Aquifers  

NLE Websites -- All DOE Office Websites (Extended Search)

v. 69-70, p. 65-69, 2000. Pruess, K., TOUGH2-A general-purpose numerical simulator for multiphase fluid and heat flow, Rep. LBL - 29400, Lawrence Berkeley Lab., September 1991....

428

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

baseload power and oil-fired boilers for peak and standbyoil-fired boilers used in the conventional system as a backup, and to meet peak

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

429

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

generation or perhaps for a gas turbine. And lastly, Figurewill then be described. Gas-Turbine System Cogeneration ofusing a combus- tion gas turbine can be accomplished with

Authors, Various

2011-01-01T23:59:59.000Z

430

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

government in their regulation of natural gas prices. ThatRegulation of energy sup- ply activites, chiefly electric and natural gasregulation requ1red householders to give up burn- ing coal in favor of natural gas

Authors, Various

2011-01-01T23:59:59.000Z

431

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

solar power plants, thermal power plants(fuel, nuclear),reject heat from thermal power plants can only be re-protection is the thermal electric power plant. Electric

Authors, Various

2011-01-01T23:59:59.000Z

432

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

thermal storage can be interfaced with a variety of high temperature heat generating systems, e.g. nuclear

Authors, Various

2011-01-01T23:59:59.000Z

433

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

with which ground water source heat pumps can be counted onResearch into ground water source heat pump systems has beenwell domestic ground water source heat pump system where

Authors, Various

2011-01-01T23:59:59.000Z

434

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

a conduit for the drilling fluid to return to the mud tanks.contamination from drilling fluid, salt water, and possiblyworking fluid at high Recent advances in drilling and mining

Authors, Various

2011-01-01T23:59:59.000Z

435

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

heat. flow, dispersion, land subsidence or uplift, the ofpossibility of land subsidence or upliftu thermal pollution,flow, land uplift or subsidence 1 water chemistry and

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

436

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

directly through air-water heat exchangers. However, in casebe desirable to use a heat exchanger between the well waterat JFK. Such a double heat exchanger system is shown in

Authors, Various

2011-01-01T23:59:59.000Z

437

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

first passed through a steam turbine to produce electrtcityhigh pressure steam turbines, could have detrimentalwhich flashes into steam to feed turbines when the sun is

Authors, Various

2011-01-01T23:59:59.000Z

438

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

l000F. Heat-recovery steam generators are available whichoil to make steam to drive turbine generators sets for theof steam to drive turbines to drive electric generators.

Authors, Various

2011-01-01T23:59:59.000Z

439

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

ground water was pumped into the storage tank from the well,be withdrawn from storage, HTW is pumped from the hot well,storage well. However, both wells are capable of being pumped and

Authors, Various

2011-01-01T23:59:59.000Z

440

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

energy storage for cogeneration and solar systems, inTwin City district cogeneration system, in Proceedings,proposed system, based on cogeneration of power and heat by

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "arbuckle saline aquifer" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

Key to Large-Scale Cogeneration?" Public Power, v, 35, no.Thermal Energy Storage for Cogeneration and Solar Systems,"Energy Storage for Cogeneration and Solar Systems, tion from

Authors, Various

2011-01-01T23:59:59.000Z

442

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

not sharp because of heat conduction to the confining bedsintegration of the heat conduction equation and a coupledconformal mapping, Heat conduction is neglected, hence the

Authors, Various

2011-01-01T23:59:59.000Z

443

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network (OSTI)

expensive system of cooling towers or ponds to avoid thermalcold from winter air have cooling towers 0 dry coolers, andtechnical analyses; of cooling towers, coolers, and ponds as

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

444

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network (OSTI)

limited study utilizing a heat pipe to introduce and recoverof electricity and heat, each pipes capable of about 600 MWtwith pumps, valves, pipes, and heat exchanger is highly

Authors, Various

2011-01-01T23:59:59.000Z

445

AQUIFER STORAGE SITE EVALUATION AND MONITORING  

E-Print Network (OSTI)

Mackay,MinJin,PeterOlden,GillianPickup,JimSomerville, Mehran Sohrabi, Adrian Todd 3 #12;Marathon is the fourth largest US based integrated oil and gas company and has interests in exploration, production, integrated gas and downstream operations. European shore and onshore CO2 storage as an alternative to the use of offshore oil & gas fields. Schlumberger

446

Regional Analysis And Characterization Of Fractured Aquifers...  

Open Energy Info (EERE)

geothermal database for the southeastern US. These data include plots of temperature and geothermal gradient logs, scans of 7.5-min quadrangles where appropriate, and annotated...

447

Water-related Issues Affecting Conventional Oil and Gas Recovery and Potential Oil-Shale Development in the Uinta Basin, Utah  

SciTech Connect

Saline water disposal is one of the most pressing issues with regard to increasing petroleum and natural gas production in the Uinta Basin of northeastern Utah. Conventional oil fields in the basin provide 69 percent of Utah?s total crude oil production and 71 percent of Utah?s total natural gas, the latter of which has increased 208% in the past 10 years. Along with hydrocarbons, wells in the Uinta Basin produce significant quantities of saline water ? nearly 4 million barrels of saline water per month in Uintah County and nearly 2 million barrels per month in Duchesne County. As hydrocarbon production increases, so does saline water production, creating an increased need for economic and environmentally responsible disposal plans. Current water disposal wells are near capacity, and permitting for new wells is being delayed because of a lack of technical data regarding potential disposal aquifers and questions concerning contamination of freshwater sources. Many companies are reluctantly resorting to evaporation ponds as a short-term solution, but these ponds have limited capacity, are prone to leakage, and pose potential risks to birds and other wildlife. Many Uinta Basin operators claim that oil and natural gas production cannot reach its full potential until a suitable, long-term saline water disposal solution is determined. The enclosed project was divided into three parts: 1) re-mapping the base of the moderately saline aquifer in the Uinta Basin, 2) creating a detailed geologic characterization of the Birds Nest aquifer, a potential reservoir for large-scale saline water disposal, and 3) collecting and analyzing water samples from the eastern Uinta Basin to establish baseline water quality. Part 1: Regulators currently stipulate that produced saline water must be disposed of into aqu