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Note: This page contains sample records for the topic "llucmajor aquifer system" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

On the solute transport in an aquifer-aquitard system  

E-Print Network [OSTI]

This dissertation is composed of five chapters and three major contributions are presented in Chapter II, III and IV. Chapter I provided a review of studies on solute transport in aquifer-aquitard system. If the aquitard is considered, two...

Bian, Aiguo

2009-05-15T23:59:59.000Z

2

Hydraulics of horizontal wells in fractured shallow aquifer systems Eungyu Parka,*, Hongbin Zhanb  

E-Print Network [OSTI]

Hydraulics of horizontal wells in fractured shallow aquifer systems Eungyu Parka,*, Hongbin Zhanb Accepted 1 May 2003 Abstract An analysis of groundwater hydraulic head in the vicinity of a horizontal well in fractured or porous aquifers considering confined, leaky confined, and water-table aquifer boundary

Zhan, Hongbin

3

3D Magnetotelluric Characterization Of The Geothermal Anomaly In The  

Open Energy Info (EERE)

Magnetotelluric Characterization Of The Geothermal Anomaly In The Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 3D Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) Details Activities (0) Areas (0) Regions (0) Abstract: In the Llucmajor aquifer system (Majorca Island, Spain) some geothermal evidences have appeared. This phenomenon is not isolated to Majorca and it is present in other areas, where it can be associated with structural conditions, especially to the extensional event suffered by the island after the Alpine Orogeny. However, the origin of this anomaly in Llucmajor is not well known, and there is no surface geological evidence of

4

E-Print Network 3.0 - aquifer system brazil Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sciences and Ecology 2 An analytical solution of two-dimensional reactive solute transport in an aquifer-aquitard system Summary: An analytical solution of two-dimensional...

5

Permanent scatterer InSAR reveals seasonal and long-term aquifer-system response to groundwater pumping and artificial  

E-Print Network [OSTI]

and precisely measuring long-term and seasonal aquifer-system response to pumping and recharge. In contrast this methodology can be utilized in heavily pumped groundwater basins to analyze aquifer-system response to long characterize the storage properties of an aquifer system with a high degree of spatial resolution. Citation

Amelung, Falk

6

Upper Basalt-Confined Aquifer System in the Southern Hanford Site  

SciTech Connect (OSTI)

The 1990 DOE Tiger Team Finding GW/CF-202 found that the hydrogeologic regime at the Hanford Site was inadequately characterized. This finding also identified the need for completing a study of the confined aquifer in the central and southern portions of the Hanford Site. The southern portion of the site is of particular interest because hydraulic-head patterns in the upper basalt-confined aquifer system indicate that groundwater from the Hanford central plateau area, where contaminants have been found in the aquifer, flows southeast toward the southern site boundary. This results in a potential for offsite migration of contaminants through the upper basalt-confined aquifer system. Based on the review presented in this report, available hydrogeologic characterization information for the upper basalt-confined aquifer system in this area is considered adequate to close the action item. Recently drilled offsite wells have provided additional information on the structure of the aquifer system in and near the southern part of the Hanford Site. Information on hydraulic properties, hydrochemistry, hydraulic heads and flow directions for the upper basalt-confined aquifer system has been re-examined and compiled in recent reports including Spane and Raymond (1993), Spane and Vermeul ( 1994), and Spane and Webber (1995).

Thorne, P.

1999-01-04T23:59:59.000Z

7

Hydrochemistry and hydrogeologic conditions within the Hanford Site upper basalt confined aquifer system  

SciTech Connect (OSTI)

As part of the Hanford Site Ground-Water Surveillance Project, Flow System Characterization Task. Pacific Northwest Laboratory examines the potential for offsite migration of contamination within the upper basalt confined aquifer system for the US Department of Energy (DOE). As part of this activity, groundwater samples were collected over the past 2 years from selected wells completed in the upper Saddle Mountains Basalt. The hydrochemical and isotopic information obtained from these groundwater samples provides hydrologic information concerning the aquifer-flow system. Ideally, when combined with other hydrologic property information, hydrochemical and isotopic data can be used to evaluate the origin and source of groundwater, areal groundwater-flow patterns, residence and groundwater travel time, rock/groundwater reactions, and aquifer intercommunication for the upper basalt confined aquifer system. This report presents the first comprehensive Hanford Site-wide summary of hydrochemical properties for the upper basalt confined aquifer system. This report provides the hydrogeologic characteristics (Section 2.0) and hydrochemical properties (Section 3.0) for groundwater within this system. A detailed description of the range of the identified hydrochemical parameter subgroups for groundwater in the upper basalt confined aquifer system is also presented in Section 3.0. Evidence that is indicative of aquifer contamination/aquifer intercommunication and an assessment of the potential for offsite migration of contaminants in groundwater within the upper basalt aquifer is provided in Section 4.0. The references cited throughout the report are given in Section 5.0. Tables that summarize groundwater sample analysis results for individual test interval/well sites are included in the Appendix.

Spane, F.A. Jr.; Webber, W.D.

1995-09-01T23:59:59.000Z

8

A parametric and economic investigation of an energy system utilizing aquifer storage  

E-Print Network [OSTI]

-Chairman of Committee) (Co-Chairman of Committee) (He d. of Department (Member) e ber) December 1980 ABSTRACT A Parametric and Economic Investigation of an Energy System Utilizing Aquifer Storage. (Dec. 1980) Stephen Gilbert Tostengard B. S. , Texas Lutheran... College Co-Chairmen of Advisory Committee: Or. Richard R. Davison Dr. William B. Harris Aquifers may be used as long-term storage facilities i'or heated or chilled water. Computer models were used to simulate the thermal response of an aquafer...

Tostengard, Stephen Gilbert

1980-01-01T23:59:59.000Z

9

Analysis of steady-state flow and advective transport in the Eastern Snake River Plain Aquifer System, Idaho  

SciTech Connect (OSTI)

The regional aquifer system of the eastern Snake River Plain is an important component of the hydrologic system in eastern Idaho. The aquifer was thought to be the largest unified ground-water reservoir on the North American continent but is probably second to the Floridian aquifer in the southeastern United States. Flow in the aquifer is from major recharge areas in the northeastern part of the plain to discharge areas in the southwestern part. A comprehensive analysis of the occurrence and movement of water in the aquifer was presented by Garabedian. The analysis included a description of the recharge and discharge, the hydraulic properties, and a numerical model of the aquifer. The purposes of this report are to: (1) describe compartments in the aquifer that function as intermediate and regional flow systems, (2) describe pathlines for flow originating at or near the water table, and (3) quantify traveltimes for adjective transport originating at or near the water table. The model constructed for this study and described in this report will aid those concerned with the management and protection of the aquifer. The model will serve as a tool to further our understanding of the aquifer and will aid in assessing the needs for future flow and transport studies of the aquifer.

Ackerman, D.J.

1995-10-01T23:59:59.000Z

10

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

and Zakhidov, 1971. "Storage of Solar Energy in a Sandy-Aquifer Storage of Hot Water from Solar Energy Collectors,"with solar energy systems, aquifer energy storage provides a

Tsang, C.-F.

2011-01-01T23:59:59.000Z

11

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

Zakhidov, 1971. "Storage of Solar Energy in a Sandy-Gravelwith solar energy systems, aquifer energy storage provides aAquifer Storage of Hot Water from Solar Energy Collectors,"

Tsang, C.-F.

2011-01-01T23:59:59.000Z

12

Source and mobility of Rare Earth Elements in a sedimentary aquifer system: Aquitaine basin (Southern France)  

E-Print Network [OSTI]

Source and mobility of Rare Earth Elements in a sedimentary aquifer system: Aquitaine basin Geological Survey Service, Bordeaux, France, e.malcuit@brgm.fr The study of rare earth elements (REEs such as rivers and lakes and groundwaters. Rare earth elements) are of great interest because of their unique

Paris-Sud XI, Université de

13

E-Print Network 3.0 - aquifer system california Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

coastal aquifers', Hydrological Sciences Journal... ;Theoretical study of the impact of tide-induced airflow on hydraulic head in air-confined coastal aquifers Source: Jiao, Jiu...

14

Fluoride and Arsenic in an Alluvial Aquifer System in Chihuahua, Mexico: Contaminant Levels, Potential Sources, and Co-occurrence  

Science Journals Connector (OSTI)

The objectives of this study were to identify potential sources of As and F within an alluvial aquifer system in central Chihuahua, to evaluate their change in concentrations with...?1, and 13 wells surpassed the...

Víctor M. Reyes-Gómez; María Teresa Alarcón-Herrera…

2013-01-01T23:59:59.000Z

15

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

SciTech Connect (OSTI)

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

16

The chemical behavior of the transuranic elements and the barrier function in natural aquifer systems  

SciTech Connect (OSTI)

In a geological repository for long-lived radioactive wastes, such as actinides and certain fission products, most of the stored radionuclides remain immobile in the particular geological formation. If any of these could possibly become mobile, only trace concentrations of a few radionuclides would result. Nevertheless, with an inventory in the repository of many tonnes of transuranic elements, the amounts that could disperse cannot be neglected. A critical assessment of the chemical behavior of these nuclides, especially their migration properties in the aquifer system around the repository site, is mandatory for analysis of the long-term safety. The chemistry requited for this includes many geochemical multicomponent reactions that are so far only partially understood and [which] therefore can be quantified only incompletely. A few of these reactions have been discussed in this paper based on present knowledge. If a comprehensive discussion of the subject is impossible because of this [lack of information], then an attempt to emphasize the importance of the predominant geochemical reactions of the transuranic elements in various aquifer systems should be made.

Jewett, J.R.

1997-09-17T23:59:59.000Z

17

Designing an Optimal Urban Community Mix for an Aquifer Thermal Energy Storage System.  

E-Print Network [OSTI]

??This research examined what mix of building types result in the most efficient use of a technology known as Aquifer Thermal Energy Storage (ATES). Hourly… (more)

Zizzo, Ryan

2010-01-01T23:59:59.000Z

18

Applications of geographic information systems (GIS) in decision analysis for monitoring aquifer systems during oilfield development projects  

SciTech Connect (OSTI)

Geographic Information Systems (GIS) coupled with numerical ground water models provide a powerful Decision Support System (DSS) and visualization tool for monitoring aquifer systems during oilfield development projects. A GIS is a coupled software/hardware system that stores, processes, and displays a variety of data structures (raster, vector, TIN, CAD) that have been geographically referenced to some common map projection and coordinate system. Georeferencing allows the analyst to integrate diverse types of data layers into thematic maps for analysis of spatial trends and analyses. The integration of quasi 3-D numerical ground water models with GIS provides project managers with a Decision Support System (DSS) to assess potential impacts to aquifer systems during oilfield development projects. The rapid advancement in desktop PC computing power and data storage has allowed software developers to produce 32-bit GIS and data integration software applications. A variety of image processing, GIS, and numerical ground water modeling software will be used to demonstrate techniques for monitoring and visualizing the migration of an oilfield brine plume leaking during an oilfield development project. Emphasis will be placed on the integration of data structures and on database design to create a DSS within a desktop GIS to serve Project Managers during oilfield development.

Blundell, S.; Baldwin, D.O.; Anderson, N.J. [Integrated Geoscience, Inc., Helena, MT (United States)

1996-06-01T23:59:59.000Z

19

Llucmajor > UIB (en transport pblic)  

E-Print Network [OSTI]

Durada: 27 min. Cost mitjà del viatge1 : 5,34 Emissions addicionals (CO2): 5,98 Kg Emissions addicionals (SO2): 0,004 Kg Durada: 50 min. Cost mitjà del viatge2 : 0,64 Emissions addicionals (CO2): 0 kg 1 any Temps acumulat3 : 6,60 dies Despesa per any3 : 1.881'09 Emissions addicionals (CO2): 2

Oro, Daniel

20

Analysis of No-Flow Boundaries in Mixed Unconfined-Confined Aquifer Systems  

E-Print Network [OSTI]

As human population increases, demand for water supplies will cause an increase in pumping rates from confined aquifers which may become unconfined after long-term pumping. Such an unconfined-confined conversion problem has not been fully...

Langerlan, Kent A.

2010-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

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

Tsang, C.-F.

2011-01-01T23:59:59.000Z

22

Groundwater contaminant interaction with aquifer thermal energy storage systems on the scale of a large urban area.  

E-Print Network [OSTI]

??This research thesis attempts to answer the question if a pathline analysis can be applied to a transient flow field where aquifer thermal energy storage… (more)

Lieshout, R. van

2013-01-01T23:59:59.000Z

23

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network [OSTI]

Zakhidov, R. A. 8 1971, Storage of solar energy in a sandy-aquifers for heat storage, solar captors for heat productionthermal energy storage for cogeneration and solar systems,

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

24

The Edwards Aquifer: An Economic Perspective  

E-Print Network [OSTI]

now served by the Edwards Aquifer. A system of transferable groundwater rights is commendable for several reasons. It is flexible because it accomodates unforeseeable future shifts in demand. Transferable rights allow voluntary action on behalf...

Merrifield, John D.; McCarl, Bruce A.; Griffin, Ronald C.; Emerson, Peter M.; Collinge, Robert A.

25

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  

SciTech Connect (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

26

A simulation model for generation of aquifer characteristics and contaminant concentrations  

E-Print Network [OSTI]

Remediation of natural systems such as aquifers requires a thorough characterization of its physical and hydraulic properties. Variability in physical and hydraulic properties of aquifers makes design and operation of suitable remediation process...

Deena, Jayaram

1993-01-01T23:59:59.000Z

27

Aquifer behavior with reinjection  

E-Print Network [OSTI]

AQUIFER BEHAVIOR WITH REINJECTION A Thesis By EUCLIDES JOSE BONET Submitted to the Graduate College of the Texas ARUM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, f967 Major Subject... Petroleum Engineering AQUIFER BEHAVIOR WITH REINJECTION A Thesis By E UC LI DES JOSE BONE T Approved as to style and content by: (Chairman of Committee) (Member) (Member) May, 1967 ACKNOWLEDGMENT Thanks are due to Petroleo Brasilerio S...

Bonet, Euclides Jose

1967-01-01T23:59:59.000Z

28

Analyzing aquifers associated with gas reservoirs using aquifer influence functions  

E-Print Network [OSTI]

ANALYZING AQUIFERS ASSOCIATED WITH GAS RESERVOIRS USING AQUIFER INFLUENCE FUNCTIONS A Thesis by GARY WAYNE TARGAC Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE V z May 1988 z V z z I- Major Subject: Petroleum Engineering ANALYZING AQUIFERS ASSOCIATED WITH GAS RESERVOIRS USING AQUIFER INFLUENCE FUNCTIONS A Thesis by GARY WAYNE TARGAC Approved as to style and content by: (Chair of Committ R...

Targac, Gary Wayne

1988-01-01T23:59:59.000Z

29

Regional aquifers and petroleum in Williston Basin region of US  

SciTech Connect (OSTI)

At least five major aquifers underlie the northern Great Plains of the US, which includes parts of the Williston basin in Montana and North Dakota. These aquifers form a hydrologic system that extends more than 960 km from recharge areas in the Rocky Mountains to discharge areas in eastern North Dakota and the Canadian Provinces of Manitoba and Saskatchewan. The regional flow system in the aquifers has had a major effect on the chemical composition of ground water within the Williston basin. Hydrodynamic forces may contribute to the accumulation of petroleum within the basin.

Downey, J.S.; Busby, J.F.; Dinwiddie, G.A.

1985-05-01T23:59:59.000Z

30

Stream aquifer interactions: analytical solution to estimate stream depletions caused by stream stage fluctuations and pumping wells near streams  

E-Print Network [OSTI]

This dissertation is composed of three parts of contributions. Systems of a fully penetrating pumping well in a confined aquifer near a fully penetrating stream with and without streambeds are discussed in Chapter II. In Chapter III, stream-aquifer...

Intaraprasong, Trin

2009-05-15T23:59:59.000Z

31

System-Scale Model of Aquifer, Vadose Zone, and River Interactions for the Hanford 300 Area - Application to Uranium Reactive Transport  

SciTech Connect (OSTI)

This report represents a synthesis and integration of basic and applied research into a system-scale model of the Hanford 300 Area groundwater uranium plume, supported by the U.S. Department of Energy’s Richland Operations (DOE-RL) office. The report integrates research findings and data from DOE Office of Science (DOE-SC), Office of Environmental Management (DOE-EM), and DOE-RL projects, and from the site remediation and closure contractor, Washington Closure Hanford, LLC (WCH). The three-dimensional, system-scale model addresses water flow and reactive transport of uranium for the coupled vadose zone, unconfined aquifer, and Columbia River shoreline of the Hanford 300 Area. The system-scale model of the 300 Area was developed to be a decision-support tool to evaluate processes of the total system affecting the groundwater uranium plume. The model can also be used to address “what if” questions regarding different remediation endpoints, and to assist in design and evaluation of field remediation efforts. For example, the proposed cleanup plan for the Hanford 300 Area includes removal, treatment, and disposal of contaminated sediments from known waste sites, enhanced attenuation of uranium hot spots in the vadose and periodically rewetted zone, and continued monitoring of groundwater with institutional controls. Illustrative simulations of polyphosphate infiltration were performed to demonstrate the ability of the system-scale model to address these types of questions. The use of this model in conjunction with continued field monitoring is expected to provide a rigorous basis for developing operational strategies for field remediation and for defining defensible remediation endpoints.

Rockhold, Mark L.; Bacon, Diana H.; Freedman, Vicky L.; Parker, Kyle R.; Waichler, Scott R.; Williams, Mark D.

2013-10-01T23:59:59.000Z

32

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

Survey of Thermal Energy Storage in Aquifers Coupled withconcept of thermal energy storage in aquifers was suggestedAnnual Thermal Energy Storage Contractors' Information

Authors, Various

2011-01-01T23:59:59.000Z

33

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

34

Transboundary aquifers: Southwestern states assess  

E-Print Network [OSTI]

tx H2O | pg. 14 Southwestern states assess Researchers from three universities in Texas, New Mexico, and Arizona and from the U.S. Geological Survey (USGS) are partnering on a new project to evaluate aquifers that span the United States... and Mexico borders. The federally funded project, known as United States-Mexico Transboundary Aquifer Assessment, will provide a scientific foundation for state and local officials to address pressing water resources challenges in the United States...

Wythe, Kathy

2008-01-01T23:59:59.000Z

35

Why sequence Sulfur cycling in the Frasassi aquifer?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

36

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

and J. Schwarz, Survey of Thermal Energy Storage in AquifersLow Temperature Thermal Energy Storage Program of Oak RidgeAquifers for Seasonal Thermal Energy Storage: An Overview of

Authors, Various

2011-01-01T23:59:59.000Z

37

Environmental risk assessment for aquifer thermal energy storage  

SciTech Connect (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

38

Environmental risk assessment for aquifer thermal energy storage  

SciTech Connect (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

39

Optimizing energy storage and reproduction for Aquifer Thermal Energy Storage. A scientific approach in enhancing ATES system performance at Achmea Apeldoorn through application of smart extraction and infiltration strategies.  

E-Print Network [OSTI]

??In the subsurface beneath the campus of Apeldoorn Achmea, the groundwater flow velocity is high. This causes a problem for its Aquifer Thermal Energy Storage… (more)

Groot, J.H.

2014-01-01T23:59:59.000Z

40

Saving for dry days: Aquifer storage and recovery may help  

E-Print Network [OSTI]

tx H2O | pg. 2 Saving for dry days Story by Kathy Wythe tx H2O | pg. 3 Aquifer storage and recovery may help With reoccurring droughts and growing population, Texas will always be looking for better ways to save or use water. Some water... suppliers in Texas are turning to aquifer storage and recovery. During the dry summer of 2008, the San Antonio Water System (SAWS) had enough assets in its ?bank? (of water) to make with- drawals to meet the needs of its customers. The water bank...

Wythe, Kathy

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Property:DOI | Open Energy Information  

Open Energy Info (EERE)

DOI DOI Jump to: navigation, search Property Name DOI Property Type String Pages using the property "DOI" Showing 25 pages using this property. (previous 25) (next 25) 2 2-D Magnetotellurics At The Geothermal Site At Soultz-Sous-Forets- Resistivity Distribution To About 3000 M Depth + 10.1016/j.crte.2010.04.001 + 3 3-D Inversion Of Borehole-To-Surface Electrical Data Using A Back-Propagation Neural Network + 10.1016/j.jappgeo.2008.06.002 + 3D Magnetotelluric Characterization Of The Geothermal Anomaly In The Llucmajor Aquifer System (Majorca, Spain) + 10.1016/j.jappgeo.2008.05.006 + 4 40 Years Of Dogger Aquifer Management In Ile-De-France, Paris Basin, France + 10.1016/j.geothermics.2010.09.005 + A A Broadband Tensorial Magnetotelluric Study In The Travale Geothermal Field + 10.1016/0375-6505(85)90040-9 +

42

AUTOMATED WATER LEVEL MEASUREMENTS IN SMALL-DIAMETER AQUIFER TUBES  

SciTech Connect (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

43

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  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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,

44

An evaluation of aquifer intercommunication between the unconfined and Rattlesnake Ridge aquifers on the Hanford Site  

SciTech Connect (OSTI)

During 1986, Pacific Northwest Laboratory conducted a study of a portion of the Rattlesnake Ridge aquifer (confined aquifer) that lies beneath the B Pond - Gable Mountain Pond area of the Hanford Site. The purpose was to determine the extent of intercommunication between the unconfined aquifer and the uppermost regionally extensive confined aquifer, referred to as the Rattlesnake Ridge aquifer. Hydraulic head data and chemical data were collected from the ground water in the study area during December 1986. The hydraulic head data were used to determine the effects caused by water discharged to the ground from B Pond on both the water table of the unconfined aquifer and the potentiometric surface of the confined aquifer. The chemical data were collected to determine the extent of chemical constituents migrating from the unconfined aquifer to the confined aquifer. Analysis of chemical constituents in the Rattlesnake Ridge aquifer demonstrated that communication between the unconfined and confined aquifers had occurred. However, the levels of contaminants found in the Rattlesnake Ridge aquifer during this study were below the DOE Derived Concentration Guides.

Jensen, E.J.

1987-10-01T23:59:59.000Z

45

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

Survey of Thermal Energy Storage in Aquifers Coupled withLow Temperature Thermal Energy Storage Program of Oak Ridgefor Seasonal Thermal Energy Storage: An Overview of the DOE-

Authors, Various

2011-01-01T23:59:59.000Z

46

Aquifer Protection Area Land Use Regulations (Connecticut)  

Broader source: Energy.gov [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...

47

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

48

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

E-Print Network [OSTI]

temperature underground thermal energy storage. In Proc. Th~al modeling of thermal energy storage in aquifers. In ~~-Mathematical modeling; thermal energy storage; aquifers;

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

49

Water conservation reserve program alternatives for the southern Ogallala aquifer.  

E-Print Network [OSTI]

??The Ogallala Aquifer is a vast resource underlying parts of eight states. The southern portion of the Ogallala Aquifer is considered to be an exhaustible… (more)

Wheeler, Erin Alexis

2008-01-01T23:59:59.000Z

50

THE SNAKE RIVER PLAIN AQUIFER THE SNAKE RIVER...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the complex to be found in the aquifer are volatile organic contaminants - particularly carbon tetrachloride ("carbon tet"). The carbon tet found in the aquifer is attributed to...

51

The INL and the Snake River Plain Aquifer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the complex to be found in the aquifer are volatile organic contaminants particularly carbon tetrachloride (carbon tet). The carbon tet found in the aquifer is attributed...

52

Relationship of regional water quality to aquifer thermal energy storage  

SciTech Connect (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

53

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

54

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

55

Streamline simulation of Surfactant Enhanced Aquifer Remediation  

E-Print Network [OSTI]

Nonaqueous Phase Liquids (NAPLS) are a recognized source of groundwater contamination. Surfactant Enhanced Aquifer Remediation (SEAR) shows promise in increasing the efficiency and effectiveness over traditional "pump and treat" NAPL remediation...

Tunison, Douglas Irvin

1996-01-01T23:59:59.000Z

56

Aquifer thermal energy storage costs with a seasonal heat source.  

SciTech Connect (OSTI)

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

57

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

E-Print Network [OSTI]

from aquitard as a source term inside the aquifer which is called Hantush�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...

Sun, Dongmin

2007-04-25T23:59:59.000Z

58

E-Print Network 3.0 - acidic uranium-contaminated aquifer Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(19% of wells) and Other (14% of wells) aquifers and none in the Ogallala-N aquifer. Uranium... ... 69...

59

Sorption and Transport Kinetics of a Nonionic Surfactant through an Aquifer Sediment  

Science Journals Connector (OSTI)

Sorption and Transport Kinetics of a Nonionic Surfactant through an Aquifer Sediment ... Although nonionic surfactants have been considered in surfactant-aided soil washing systems, there is little information on the particle-size dependence of these processes, and this may have significant implications for the design of these systems. ... Adsorption of Non-ionic Surfactants onto Sand and Its Importance in Naphthalene Removal ...

Zafar. Adeel; Richard G. Luthy

1995-04-01T23:59:59.000Z

60

Capacitive conductivity logging and electrical stratigraphy in a high-resistivity aquifer, Boise Hydrogeophysical Research Site  

E-Print Network [OSTI]

Capacitive conductivity logging and electrical stratigraphy in a high-resistivity aquifer, Boise . Examining such a high-resistivity system provides a good test for the ca- pacitive-conductivity tool because the conventional induc- tion-conductivity tool known to have limited effectiveness in high-resistivity systems did

Barrash, Warren

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

A Lumped Parameter Model for the Edwards Aquifer  

E-Print Network [OSTI]

A lumped parameter model has been developed to simulate monthly water levels and spring flows in the Edwards Aquifer. It is less complex and easier to use than the existing complex finite difference models for the Edwards Aquifer. The lumped...

Anaya, Roberto; Wanakule, Nisai

62

Application of the decline curve method to aquifers  

E-Print Network [OSTI]

curves for Fetkovich aquifers. . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . 22 23 24 11a. Semi-log straight line behavior for an aquifer in pseudosteady state. . . . . . . . . . 24 1 lb, Comparison between the normalized influx rate... early for a strong water drive and later for a weak aquifer support. This fact is concluded by Bruns and Fetkovich3 where the authors studied the effect of water influx on p/z plot and showed that shape depends not only on the strength of the aquifer...

Potnis, Girish Vijay

1992-01-01T23:59:59.000Z

63

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...

Anchliya, Abhishek

2010-07-14T23:59:59.000Z

64

In situ feldspar dissolution rates in an aquifer  

Science Journals Connector (OSTI)

In situ silicate dissolution rates within the saturated Navajo sandstone, at Black Mesa, Arizona were determined from elemental fluxes in the aquifer. The mass transfer between groundwater and mineral matrix along flow paths was calculated from inverse mass balance modeling. The reaction time is bound by 14C-based travel time. BET surface areas were measured with N2 gas adsorption. Dissolution rates for K-feldspar and plagioclase are 10?19 and 10?16 mol (feldspar) m?2 s?1, respectively, which are ?105 times slower than laboratory experiment-derived rates under similar pH and temperature but at far from equilibrium conditions. The rates obtained in this study are consistent with the slower field rates found in numerous watershed and soil profile studies. However, these rates are from saturated aquifers, overcoming some concerns on estimated rates from unsaturated systems. The Navajo sandstone is a quartz-sandstone with a relatively simple and well-studied hydrogeology, groundwater geochemistry, and lithology, a large number of groundwater analyses and 14C groundwater ages, groundwater residence times up to ?37 ky, groundwater pH from ?8 to 10, and temperature from ?15 to 35°C.

Chen Zhu

2005-01-01T23:59:59.000Z

65

Aquifer Structure Identification Using Stochastic Inversion  

SciTech Connect (OSTI)

This study presents a stochastic inverse method for aquifer structure identification using sparse geophysical and hydraulic response data. The method is based on updating structure parameters from a transition probability model to iteratively modify the aquifer structure and parameter zonation. The method is extended to the adaptive parameterization of facies hydraulic parameters by including these parameters as optimization variables. The stochastic nature of the statistical structure parameters leads to nonconvex objective functions. A multi-method genetically adaptive evolutionary approach (AMALGAM-SO) was selected to perform the inversion given its search capabilities. Results are obtained as a probabilistic assessment of facies distribution based on indicator cokriging simulation of the optimized structural parameters. The method is illustrated by estimating the structure and facies hydraulic parameters of a synthetic example with a transient hydraulic response.

Harp, Dylan R [Los Alamos National Laboratory; Dai, Zhenxue [Los Alamos National Laboratory; Wolfsberg, Andrew V [Los Alamos National Laboratory; Vrugt, Jasper A [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

66

Estimation of Recharge to the Middle Trinity Aquifer of Central Texas Using Water-Level Fluctuations  

E-Print Network [OSTI]

A 23-site monitoring well network located in the Trinity Aquifer region of Central Texas, with all wells penetrating the Middle Trinity Aquifer, was used with available values of aquifer storativity and specific yield to estimate recharge...

Jennings, Marshall; Chad, Thomas; Burch, John; Creutzburg, Brian; Lambert, Lance

67

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

68

E-Print Network 3.0 - aquifer subtropical africa Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Charge 2003 12;-ii- Acknowledgements Tim Blair introduced the aquifer... aquifers in Jordan as an example to demonstrate the theoretical formulations. However, by ... Source:...

69

E-Print Network 3.0 - alto piura aquifer Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Charge 2003 12;-ii- Acknowledgements Tim Blair introduced the aquifer... aquifers in Jordan as an example to demonstrate the theoretical formulations. However, by ... Source:...

70

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

E-Print Network [OSTI]

Auburn University Thermal Energy Storage , LBL No. 10194.Mathematical modeling of thermal energy storage in aquifers,of Current Aquifer Thermal Energy Storage Programs (in

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

71

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, Lawrencewithin the Seasonal Thermal Energy Storage program managed

Tsang, C.F.

2013-01-01T23:59:59.000Z

72

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

E-Print Network [OSTI]

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

Tsang, Chin Fu

2013-01-01T23:59:59.000Z

73

E-Print Network 3.0 - aquifers case study Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in the conned aquifer will be controlled mainly by leakage. The study also... the tide-induced groundwater uctuation in a conned aquifer. This ... Source: Jiao, Jiu...

74

E-Print Network 3.0 - aerobic shallow aquifer Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the characteristics of the shallow aquifers (depth, thickness, transmisivity, chemical... energy exploitability1 of aquifers; one talks about the ... Source: Ecole Polytechnique,...

75

E-Print Network 3.0 - aquifer testing recommendations Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of... of estimated aquifer parameters is demonstrated by analysing the pumping test data at Cottam in the Nottingham... the spatial distribution of aquifer properties and...

76

E-Print Network 3.0 - aquifer column studies Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the site... of the Aquifer-Test Site The aquifer at the study site is composed of unconsolidated glacial outwash sediments... ESTIMATION OF HYDRAULIC PARAMETERS FROM AN UNCONFINED...

77

E-Print Network 3.0 - aquifer paris basin Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

on which potential site(s) in deep saline aquifers are investigated. KKeeyywwoorrddss:: CO2... geological storage; Site selection; Saline aquifer; Paris Basin; PICOREF I....

78

Radon Concern in the Hickory Aquifer  

E-Print Network [OSTI]

Radon ConcernStory by Amanda Crawford tx H2O | pg. 20 As the primary water source for Mason,Concho, McCulloch, San Saba, Menard, Kimble, and Gillespie counties in Central Texas, the threat of elevated radionuclide concentra- tions... in the Hickory Aquifer's groundwater poses health risks for residents in the area. Radon is a natural, radioactive gas that may be found indoors in air or drinking water. Radon is the decay product of radium, so radon indi- rectly reflects the presence...

Crawford, Amanda

2005-01-01T23:59:59.000Z

79

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.

80

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

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Interpretation of earth tide response of three deep, confined aquifers  

SciTech Connect (OSTI)

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 directly estimate S/sub s/from earth tide response. Except for the fact that barometric changes act both on the water surface in the well and on the aquifer as a whole while stress changes associated with earth tides act only in the aquifer, the two phenomena influence the confined aquifer in much the same way. In other words, barometric response contains only as much information on the elastic properties of the aquifer as the earth tide response does. Factors such as well bore storage, aquifer transmissivity, and storage coefficient contribute to time lag and damping of the aquifer response as observed in the well. Analysis shows that the observation of fluid pressure changes alone, without concurrent measurement of external stress changes, is sufficient to interpret uniquely earth tide response. In the present work, change in external stress is estimated from dilatation by assuming a reasonable value for bulk modulus. Earth tide response of geothermal aquifers from Marysville, Montana. East Mesa, California; and Raft River Valley, Idaho, were analyzed, and the ratio of S/sub 3/ to porosity was estimated. Comparison of these estimates with independent pumping tests show reasonable agreement.

Narasimhan, T.N.; Kanehiro, B.Y.; Witherspoon, P.A.

1984-03-10T23:59:59.000Z

82

Groundwater nitrates in the Seymour Aquifer: problem or resource?  

E-Print Network [OSTI]

24 tx H2O Fall 2012 Story by Alejandra Arreola-Triana In the Rolling Plains of Texas, the Seymour Aquifer is the major source of water for Haskell, Jones and Knox counties. #31;e water from the Seymour Aquifer, however, contains nitrate levels... are working on ways to manage the nitrate levels in this aquifer. Tracking the source Nitrates in groundwater can come from runo#27;, fertilizer use, leaks from septic tanks, sewage and erosion of natural deposits, according to the U.S. Environmental...

Arreola-Triana, Alejandra

2012-01-01T23:59:59.000Z

83

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

84

Migration and trapping of CO? in saline aquifers  

E-Print Network [OSTI]

Mitigation of climate change requires a reduction in atmospheric carbon dioxide (C0 2) emissions. One promising tool for achieving this is the large-scale injection of CO2 into deep saline aquifers. After injection, upward ...

MacMinn, Christopher William

2012-01-01T23:59:59.000Z

85

Analyzing aquifer driven reservoirs using a computer-oriented approach  

E-Print Network [OSTI]

A new computer-oriented approach for analyzing aquifer driven reservoirs incorporates both geological and historical pressure data to determine original hydrocarbons-in-place and to forecast production. This new approach does not rely entirely...

Flumerfelt, Raymond William

1996-01-01T23:59:59.000Z

86

Seawater circulation in coastal aquifers : processes and impacts  

E-Print Network [OSTI]

This thesis explores the subterranean domain of chemical cycling in coastal oceans abutting permeable aquifers, where transport through sediments is dominated by advection, rather than diffusion. We investigate the mechanisms ...

Karam, Hanan Nadim

2012-01-01T23:59:59.000Z

87

Injection of Zero Valent Iron into an Unconfined Aquifer Using...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Zero Valent Iron into an Unconfined Aquifer Using Shear-Thinning Fluids."Ground Water Monitoring and Remediation 31(1):50-58. Authors: MJ Truex VR Vermeul DP Mendoza BG...

88

Modeling of thermal energy storage in groundwater aquifers  

E-Print Network [OSTI]

MODELING OF THERMAL ENERGY STORAGE IN GROUNDWATER AQUIFERS A Thesis by DAVID BRYAN REED Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1979... ABSTRACT Modeling of Thermal Energy Storage in Groundwater Aquifers. (December 1979) David Bryan Reed, B. S. , Texas A&M University Chairman of Advisory Committee: Dr. Donald L. Reddell Solar energy is a promising alternate energy source for space heat...

Reed, David Bryan

2012-06-07T23:59:59.000Z

89

Analysis of pressure data with the aquifer influence function  

E-Print Network [OSTI]

ANALYSIS OF PRESSURE DATA WITH THE AQUIFER INFllJENCE FUNCTION A Thesis by THEODORE D. EICKS Submitted to the Office of Graduate Studies of Texas A&N University in partial fulfillment of the requirenmts for the degree of MASTER OF SCIENCE... ~r 1989 Major subject: Petroleum Engineering ANALYSIS OF PRESSURE DATA WITH THE AQUIFER INFIIJENCE FUNCTION A Thesis by Approved as to style and content by: R. A. Startzman (Member) T. G. Rozgonyi (Member) W D. Von nten (Head of troleum...

Eicks, Theodore D

1989-01-01T23:59:59.000Z

90

Reduction of trichloroethylene in a model aquifer with methanotrophic bacteria  

E-Print Network [OSTI]

REDUCTION OF TRICHLOROETHYLENE IN A MODEL AQUIFER WITH METHANOTROPHIC BACTERIA A Thesis by Duane Dee Hicks Submitted to the Office of Graduate Studies of Texas ARM University in partial fullfillment of the requirements for thc degree... of MASTER OF SCIENCE December 1990 Major Subject: Civil Engineering REDUCTION OF TRICHLOROETHYLENE IN A MODEL AQUIFER WITH METHANOTROPHIC BACTEPslA A Thesis by Duane Dec Hicks Approved as to style and content by Bill Batchclor (Chair of Committee...

Hicks, Duane Dee

1990-01-01T23:59:59.000Z

91

Methanogens in Central Texas aquifers: a microbiological and molecular study  

E-Print Network [OSTI]

METHANOGENS IN CENTRAL TEXAS AQUIFERS: A MICROBIOLOGICAL AND MOLECULAR STUDY A Thesis by MARTHA JEAN DAVIES MACRAE Submitted to the Office of Graduate Studies of Texas A8cM University in partial fulfillmen of the requirements for the degree... of MASTER OF SCIENCE December 1992 Major Subject: Oceanography METHANOGENS IN CENTRAL TEXAS AQUIFERS: A MICROBIOLOGICAL AND MOLECULAR STUDY A Thesis by MARTHA JEAN DAVIES MACRAE Approved as to style and content by: James W. Ammerman (Chair...

MacRae, Martha Jean Davies

1992-01-01T23:59:59.000Z

92

Estimating Plume Volume for Geologic Storage of CO2 in Saline Aquifers  

SciTech Connect (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

93

Efficient parallel simulation of CO2 geologic sequestration insaline aquifers  

SciTech Connect (OSTI)

An efficient parallel simulator for large-scale, long-termCO2 geologic sequestration in saline aquifers has been developed. Theparallel simulator is a three-dimensional, fully implicit model thatsolves large, sparse linear systems arising from discretization of thepartial differential equations for mass and energy balance in porous andfractured media. The simulator is based on the ECO2N module of the TOUGH2code and inherits all the process capabilities of the single-CPU TOUGH2code, including a comprehensive description of the thermodynamics andthermophysical properties of H2O-NaCl- CO2 mixtures, modeling singleand/or two-phase isothermal or non-isothermal flow processes, two-phasemixtures, fluid phases appearing or disappearing, as well as saltprecipitation or dissolution. The new parallel simulator uses MPI forparallel implementation, the METIS software package for simulation domainpartitioning, and the iterative parallel linear solver package Aztec forsolving linear equations by multiple processors. In addition, theparallel simulator has been implemented with an efficient communicationscheme. Test examples show that a linear or super-linear speedup can beobtained on Linux clusters as well as on supercomputers. Because of thesignificant improvement in both simulation time and memory requirement,the new simulator provides a powerful tool for tackling larger scale andmore complex problems than can be solved by single-CPU codes. Ahigh-resolution simulation example is presented that models buoyantconvection, induced by a small increase in brine density caused bydissolution of CO2.

Zhang, Keni; Doughty, Christine; Wu, Yu-Shu; Pruess, Karsten

2007-01-01T23:59:59.000Z

94

Geohydrology of bedrock aquifers in the Northern Great Plains in parts of Montana, North Dakota, South Dakota, and Wyoming  

SciTech Connect (OSTI)

Development of energy-related resources in the northern Great Plains of the US will require large quantities of ground water. Because Montana, North Dakota, and Wyoming are semiarid, the primary local sources of nonappropriated water are the deep bedrock aquifers of Paleozoic and Mesozoic age. The US Geological Survey undertook a 4-year interdisciplinary study that has culminated in a digital-simulation model of the regional flow system and incorporates the results of geochemical, hydrologic, and geologic studies. Rocks of Paleozoic and Mesozoic age form at least five artesian aquifers that are recharged in the mountainous areas of Montana, South Dakota, and Wyoming. The aquifers extend for more than 600 mi to discharge areas in the northeastern part of North Dakota and in Manitoba. In general, the direction of flow in each aquifer is east to northeast, but flow is deflected to the north and south around the Williston basin. Flow through the Williston basin is restricted because of brine (200,000-350,000 mg/l), halite beds, geologic structures, and decreased permeability of rocks in the deeper parts of the basin. Fracture systems and lineaments transverse the entire area and act either as conduits or as barriers to ground-water flow, depending on their hydrogeologic and geochemical history. Vertical leakage from the aquifers is restricted by shale with low permeability, by halite beds, and by stratigraphic traps or low-permeability zones associated with petroleum accumulations. However, interaquifer leakage appears to occur through and along some of the major lineaments and fractures. Interaquifer leakage may be a major consideration in determining the quality of water produced from wells.

Downey, J.S.

1986-01-01T23:59:59.000Z

95

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

SciTech Connect (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

96

Contaminant transport in aquifers with spatially variable hydraulic and sorption properties  

Science Journals Connector (OSTI)

...correlated to some degree. The anisotropic structural features that are...statistically stationary and anisotropic random space function (RSF...in granular aquifers, in shales, etc. For illustrative purposes...three-dimensional statistically anisotropic aquifer where K and P are...

1998-01-01T23:59:59.000Z

97

Using GIS Tainted Glasses to Help Subdivide the Ogallala/High Plains Aquifer in Kansas  

E-Print Network [OSTI]

Using GIS Tainted Glasses to Help Subdivide the Ogallala/High Plains Aquifer Brownie Wilson Geohydrology Section Kansas Geological Survey University of Kansas 12th Annual GIS Day @ KU November 20, 2013 The High Plains Aquifer Kansas Geological...

Wilson, Brownie

2013-11-20T23:59:59.000Z

98

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

99

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

100

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

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

E-Print Network 3.0 - anoxic aquifer slurries Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

groundwater and aquifer particles from Bangladesh, India, Vietnam, and Nepal Summary: 1 Comparison of arsenic concentrations in simultaneously-collected...

102

E-Print Network 3.0 - aquifer microbial community Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

that sustains microbial communities capable... Biogeochemical Dynamics: Controlling Uranium Mobility and Bioremediation in Contaminated Aquifers... ) at Rifle, Colorado, is a...

103

Physical and Economic Potential of Geological CO2 Storage in Saline Aquifers  

Science Journals Connector (OSTI)

Physical and Economic Potential of Geological CO2 Storage in Saline Aquifers ... To put this result in context, a minimum of approximately 0.7 km3 of reservoir volume at the optimal depth would be required to store the emissions from a typical 500 MW coal plant capturing 7389 tons of CO2 per day for 20 years with an 80% capacity factor (2). ... Since our analysis is performed on a single-well basis, though, we do not account for possible economies of scale in a multiwell system. ...

Jordan K. Eccles; Lincoln Pratson; Richard G. Newell; Robert B. Jackson

2009-02-06T23:59:59.000Z

104

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

Science Journals Connector (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

105

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

E-Print Network [OSTI]

; Steward, 1999; Zhan, 1999; Zhan and Cao, 2000]. These wells are often placed near or under rivers, where they collect water from both the surface and aquifer that is naturally filtered through low permeability riverbank sediments. Seines et al. [1994... various conditions [Schafer, 1996; Zhan, 1999; Steward, 1999; Zhan and Cao, 2000; Stewart and Jin, 2001]. Radial collector wells are complex fluid collection systems that induce intricate flow dynamics as a result of their pumping because...

Dugat, William D., IV

2010-01-14T23:59:59.000Z

106

Degradation kinetics of aromatic organic solutes introduced into a heterogeneous aquifer  

SciTech Connect (OSTI)

Degradation rates of benzene, p-xylene, naphthalene, and o-dichlorobenzene have been determined in the Columbus, MS aquifer. The objective of this research was to measure the degradation of organic compounds in an aquifer, using pulse injection. Degradation rates of these compounds were calculated, and the rates were related to aquifer structure and hydrologic properties. the injection was made into the saturated zone of the unconfined aquifer. This technique is suggested for future field experiments because it distinguishes solute degradation from solute losses by sorption and evaporation and allows mass balance to be demonstrated throughout the course of the reaction in the aquifer. 18 refs., 6 figs., 3 tabs.

MacIntyre, W.G. (College of William and Mary, Gloucester Point, VA (United States)); Boggs, M. (Tennessee Valley Lab., Norris, TN (United States)); Antworth, C.P.; Stauffer, T.B. (Tyndall Air Force Base, Panama City, FL (United States))

1993-12-01T23:59:59.000Z

107

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade  

Broader source: Energy.gov [DOE]

Project Will Take Advantage of Abundant Water in Shallow Aquifer. Demonstrate Low Temperature GSHP System Design. Provides a Baseline for Local Industrial Geothermal Project Costs and Benefits.

108

Hydrogeologic Controls on Bioactive Zone Development in Biostimulated Aquifers  

E-Print Network [OSTI]

and the Faculty of the Graduate School of The University of Kansas in partial fulfillment of the requirements for the degree of Doctor of Philosophy 2012 _____________________________ Dr. J.F. Devlin, Chair... that this is the approved version of the following dissertation: Hydrogeologic Controls on Bioactive Zone Development in Biostimulated Aquifers _____________________________ Dr. J.F. Devlin, Chair...

Schillig, Peter Curtis

2012-05-31T23:59:59.000Z

109

Groundwater: the processes and global significance of aquifer degradation  

Science Journals Connector (OSTI)

...climates in particular, this wastewater is widely used 1968 S. S...aquifers below major areas of wastewater reuse for agricultural irrigation...irrigation efficiencies with wastewater are invariably low, high...after taking account of the recycling of nitrate in irrigation water...

2003-01-01T23:59:59.000Z

110

Investigation of Possible Extra ~Recharge During Pumping in Nottinghant .Aquifer  

E-Print Network [OSTI]

Pumping test analysis based on the Theis equation using log-log or semilog curve-matching methods has been and even a large part ofthe recovery period can be fitted very well by the Theis equation. However. In a real pumping test, if the geological condition of an aquifer is not well recognized or a conventional

Jiao, Jiu Jimmy

111

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

SciTech Connect (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

112

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

SciTech Connect (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

113

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

114

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 - - - - - - - - - - - - - - -

115

Seymour Aquifer Water Quality Improvement Project Final Report  

E-Print Network [OSTI]

significant financial benefits. Another important finding was that soil storage rather than irrigation method was the dominant factor influencing leaching potential of a given area. This finding suggests that future implementation of BMPs should... be prioritized to areas with low soil storage capacity/ high leaching potential soils. Continued work is needed to improve conditions in the Seymour Aquifer. Educational programs on irrigation management and nutrient management are needed to encourage...

Sij, J.; Morgan, C.; Belew, M.; Jones, D.; Wagner, K.

116

Effect of ethanol on BTEX biodegradation in aerobic aquifer systems.  

E-Print Network [OSTI]

??Ethanol can affect the biodegradation of gasoline hydrocarbons in groundwater. High concentrations of ethanol can be toxic to subsurface microorganisms that are otherwise capable of… (more)

Williams, Erika C.

2008-01-01T23:59:59.000Z

117

Hydrogeophysical methods for analyzing aquifer storage and recovery systems  

E-Print Network [OSTI]

1995. Hydrogeology of the Dammam formation in Umm GudairGeology and hydrogeology of the Dammam formation in Kuwait.freshwater storage in the Dammam formation, Kuwait. Arabian

Minsley, B.J.

2010-01-01T23:59:59.000Z

118

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

119

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network [OSTI]

R. A. 8 1971, Storage of solar energy in a sandy-gravelthermal energy storage for cogeneration and solar systems,storage, solar captors for heat production 9 and heat pumps for energy

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

120

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

III, "Man-made Geothermal Energy," presented at MiamiA.C.Meyers III; "Manmade Geothermal Energy", Proc. of MiamiBlack is director of Geothermal Energy Systems, Fox Parry is

Authors, Various

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

of Thermal Energy Energy Sources o Solar Heat o Winter Coldusual Solar Energy System which uses only a heat source andsources and heat sinks not found anywhere else. Furthermore even where Solar energy

Authors, Various

2011-01-01T23:59:59.000Z

122

The use of a semi-analytical method for matching aquifer influence functions  

E-Print Network [OSTI]

of water-drive gas reservoirs. The method is suitable for hand calculation. Fetkovich ", in 1971, presented an approach that utilizes the "stabilized", or pseudosteady-state aquifer productivity index and an aquifer material balance to represent...THE USE OF A SEMI-ANALYTICAL METHOD FOR MATCHING AQUIFER INFLUENCE FUNCTIONS A Thesis by SHENG DING Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

Ding, Sheng

1990-01-01T23:59:59.000Z

123

E-Print Network 3.0 - arsenic contaminated aquifer Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is the actual exposure that people will experience. Summary: -lying aquifers, so shallow open-pit or underground mines may not contaminate the water because of the limited......

124

E-Print Network 3.0 - aquifer management project Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

are good aquifers if groundwater is presented. A confining layer (such as a clay of shale layer Source: Pan, Feifei - Department of Geography, University of North Texas...

125

Feasibility of Aquifer Storage Recovery for the Mustang, Oklahoma Well Field.  

E-Print Network [OSTI]

??The purpose of this study was to determine the economic and geochemical feasibility of utilizing aquifer storage recovery (ASR) technology to store water in the… (more)

Wright, Krishna E.

2007-01-01T23:59:59.000Z

126

E-Print Network 3.0 - aquifer heterogeneity final Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

-30 may-1th june 2006, Dijon, France Summary: is considered like a heterogeneous aquifer: permeability tensor and salt water interface position could... International symposium -...

127

Analytical models of contaminant transport in coastal aquifers Diogo T. Bolster a,*, Daniel M. Tartakovsky a  

E-Print Network [OSTI]

water intrudes into a coastal aquifer, which poses significant envi- ronmental and economical challenges sources, such as imported water, or to implement costly technological solutions, such as desalination

Bolster, Diogo

128

E-Print Network 3.0 - aquifers receiving livestock Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

approxi- mately 80% of its recharge through losing (influent) streams... legal, political, and economic interests. Much attention is focused on the Edwards aquifer, which is...

129

E-Print Network 3.0 - aquifer sediment reactors Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

sediment reactors Search Powered by Explorit Topic List Advanced Search Sample search results for: aquifer sediment reactors Page: << < 1 2 3 4 5 > >> 1 Theme 1. Exposure:...

130

E-Print Network 3.0 - aquifer stable isotopes Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

results for: aquifer stable isotopes Page: << < 1 2 3 4 5 > >> 1 Treated domestic wastewater traditionally has been discharged offshore in coastal areas via ocean outfalls. In...

131

E-Print Network 3.0 - anaerobic aquifer column Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Explorit Topic List Advanced Search Sample search results for: anaerobic aquifer column Page: << < 1 2 3 4 5 > >> 1 Biodegradation 11: 107116, 2000. 2001 Kluwer Academic...

132

Assessing the cumulative impacts of surface mining and coal bed methane development on shallow aquifers in the Powder River Basin, Wyoming  

SciTech Connect (OSTI)

Large scale surface coal mining taken place along the cropline of the Wyodak-Anderson coal seam since approximately 1977. Groundwater impacts due to surface mining of coal and other energy-related development is a primary regulatory concern and an identified Office of Surface Mining deficiency in the Wyoming coal program. The modeled aquifers are the upper unit (coal) of the Paleocene Fort Union Formation and the overlying Eocene Wasatch Formation. A regional groundwater model covering 790 square miles was constructed using MODFLOW, to simulate the impacts from three surface coal mines and coal bed methane development occurring downdip. Assessing anisotropy of the coal aquifer, quality checking of in situ aquifer tests and database quality control were precursors to modelling. Geologic data was kriged to develop the structural model of the aquifers. A Geographic Information System (GIS) was utilized to facilitate storage, analysis, display, development of input modelling arrays and assessment of hydrologic boundaries. Model output presents the predicted impacts of likely development scenarios, including impacts from coal bed methane development and surface coal mining through anticipated life of mining, and surface mining impacts independent of gas development.

Peacock, K. [Dept. of Interior, Casper, WY (United States)

1997-12-31T23:59:59.000Z

133

Subsurface Geology of Arsenic-Bearing Permian Sedimentary Rocks in the Garber-Wellington Interval of the Central Oklahoma Aquifer, Cleveland County, Oklahoma.  

E-Print Network [OSTI]

??The Central Oklahoma Aquifer is an important source of drinking water in central Oklahoma. The major formations making up the aquifer, the Garber Sandstone and… (more)

Abbott, Ben Nicholas

2005-01-01T23:59:59.000Z

134

Critical analysis of plume containment modeling in a thin heterogeneous unconfined aquifer: application to a bulk fuel storage terminal  

E-Print Network [OSTI]

The reported hydrocarbon contamination and subsequent consultant work at a bulk fuel storage terminal has instigated the need to critically analyze modeling techniques in thin, heterogeneous, unconfined aquifers. This study provides an aquifer...

Mejia, Karl Edward

1997-01-01T23:59:59.000Z

135

Enhanced CO2 Storage and Sequestration in Deep Saline Aquifers by Nanoparticles: Commingled Disposal of Depleted Uranium and CO2  

Science Journals Connector (OSTI)

Geological storage of anthropogenic CO2 emissions in deep saline aquifers has recently received tremendous attention in the scientific literature. Injected buoyant CO2 accumulates at the top part of the aquifer u...

Farzam Javadpour; Jean-Philippe Nicot

2011-09-01T23:59:59.000Z

136

Behaviour of a small sedimentary volcanic aquifer receiving irrigation return flows: La Aldea, Gran Canaria, Canary Islands (Spain)  

Science Journals Connector (OSTI)

In many arid and semi-arid areas, intensive cultivation is practiced despite water commonly being a limiting factor. Often, irrigation water is from local aquifers or imported from out-of-area aquifers and surfac...

T. Cruz-Fuentes; J. Heredia; M. C. Cabrera; E. Custodio

2014-06-01T23:59:59.000Z

137

Analysis of mineral trapping for CO{sub 2} disposal in deep aquifers  

SciTech Connect (OSTI)

CO{sub 2} disposal into deep aquifers has been suggested as a potential means whereby atmospheric emissions of greenhouse gases may be reduced. However, our knowledge of the geohydrology, geochemistry, geophysics, and geomechanics of CO{sub 2} disposal must be refined if this technology is to be implemented safely, efficiently, and predictably. As a prelude to a fully coupled treatment of physical and chemical effects of CO{sub 2} injection, we have analyzed the impact of CO{sub 2} immobilization through carbonate precipitation. A survey of all major classes of rock-forming minerals, whose alteration would lead to carbonate precipitation, indicated that very few minerals are present in sufficient quantities in aquifer host rocks to permit significant sequestration of CO{sub 2}. We performed batch reaction modeling of the geochemical evolution of three different aquifer mineralogies in the presence of CO{sub 2} at high pressure. Our modeling considered (1) redox processes that could be important in deep subsurface environments, (2) the presence of organic matter, (3) the kinetics of chemical interactions between the host rock minerals and the aqueous phase, and (4) CO{sub 2} solubility dependence on pressure, temperature and salinity of the system. The geochemical evolution under both natural background and CO{sub 2} injection conditions was evaluated. In addition, changes in porosity were monitored during the simulations. Results indicate that CO{sub 2} sequestration by matrix minerals varies considerably with rock type. Under favorable conditions the amount of CO{sub 2} that may be sequestered by precipitation of secondary carbonates is comparable with and can be larger than the effect of CO{sub 2} dissolution in pore waters. The precipitation of ankerite and siderite is sensitive to the rate of reduction of ferric mineral precursors such as glauconite, which in turn is dependent on the reactivity of associated organic material. The accumulation of carbonates in the rock matrix and induced rock mineral alteration due to the presence of dissolved CO{sub 2} lead to a considerable decrease in porosity. The numerical experiments described here provide useful insight into sequestration mechanisms, and their controlling geochemical conditions and parameters.

Xu, Tianfu; Apps, John A.; Pruess, Karsten

2001-07-20T23:59:59.000Z

138

The effects of juniper removal on rainfall partitioning in the Edwards Aquifer region: large-scale rainfall simulation experiments  

E-Print Network [OSTI]

fault zone, and a confined area of both fresh and saline water zones. The Edwards Aquifer is also one of the most productive carbonate aquifers in the United States, with large porosity and high permeability due to limestone dissolution... fault zone, and a confined area of both fresh and saline water zones. The Edwards Aquifer is also one of the most productive carbonate aquifers in the United States, with large porosity and high permeability due to limestone dissolution...

Taucer, Philip Isaiah

2006-08-16T23:59:59.000Z

139

On the use of the Boussinesq equation for interpreting recession hydrographs from sloping aquifers  

E-Print Network [OSTI]

On the use of the Boussinesq equation for interpreting recession hydrographs from sloping aquifers solutions to the one-dimensional Boussinesq equation for unconfined flow in a homogeneous and horizontal compare analytical solutions to the linearized one-dimensional Boussinesq equation for a sloping aquifer

Tullos, Desiree

140

Seawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen  

E-Print Network [OSTI]

Seawater intrusion and aquifer freshening near reclaimed coastal area of Shenzhen K.P. Chen and J this period indicate that the aquifer experienced seawater intrusion in the 1980s but underwent gradual freshening in the 1990s. It is speculated that seawater intrusion was induced by excessive groundwater

Jiao, Jiu Jimmy

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

A Fractal Interpretation of Controlled-Source Helicopter Electromagnetic Survey Data Seco Creek, Edwards Aquifer, TX  

E-Print Network [OSTI]

The Edwards aquifer lies in the structurally complex Balcones fault zone and supplies water to the growing city of San Antonio. To ensure that future demands for water are met, the hydrological and geophysical properties of the aquifer must be well...

Decker, Kathryn T.

2010-07-14T23:59:59.000Z

142

Limiting Pumping from the Edwards Aquifer: An Economic Investigation of Proposals, Water Markets and Springflow Guarantees  

E-Print Network [OSTI]

Limiting Pumping from the Edwards Aquifer: An Economic Investigation of Proposals, Water Markets for pumping and springflow which in turn provides water for recreation and habitat for several endangered species. A management authority is charged with aquifer management and is mandated to reduce pumping

McCarl, Bruce A.

143

Detecting sub-glacial aquifers in the north polar layered deposits with Mars Express/MARSIS  

E-Print Network [OSTI]

water ice cap and underlying dusty-ice polar layered deposits or PLD) via melting from ice insulation into the polar ice mass is modeled to determine the capability of the instrument to locate sub-glacial aquifers will investigate the effect of ice reflective and conductive losses on the radar-detection of subsurface aquifers

Gurnett, Donald A.

144

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

SciTech Connect (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

145

The 1997 Irrigation Suspension Program for the Edwards Aquifer: Evaluation and Alternatives  

E-Print Network [OSTI]

................................ ................................ ................................ .......................... 9 P ARTICIPATION ................................ ................................ ................................ .................... 10 E STIMATED E FFECTS O F T HE 1997 I RRIGATION S USPENSION P ROGRAM .............................. 11 C HANGES... ackground The Edwards Aquifer (Aquif er) is a tremendous resource for the economy of south central Texas. It supplies virtually all the municipal and industrial water supply for the greater San Antonio region (the 10th largest city in the United States...

Keplinger, Keith O.; McCarl, Bruce A.

146

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

SciTech Connect (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

147

Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers  

E-Print Network [OSTI]

Thermal anomalies indicate preferential flow along faults in unconsolidated sedimentary aquifers V in unconsolidated siliciclastic aquifers off-set by normal-faults in the Lower Rhine Embayment, Germany. High plane. Most current models of fault hydrology in unconsolidated sedimentary sequences assume faults

Bense, Victor

148

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

Broader source: Energy.gov (indexed) [DOE]

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

149

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

Broader source: Energy.gov (indexed) [DOE]

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

150

Temporal and spatial scaling of hydraulic response to recharge in fractured aquifers: Insights from a frequency domain analysis  

E-Print Network [OSTI]

Temporal and spatial scaling of hydraulic response to recharge in fractured aquifers: Insights from investigate the hydraulic response to recharge of a fractured aquifer, using a frequency domain approach scaling of hydraulic response to recharge in fractured aquifers: Insights from a frequency domain analysis

Paris-Sud XI, Université de

151

Simulation of Coupled Processes of Flow, Transport, and Storage of CO2 in Saline Aquifers  

SciTech Connect (OSTI)

This report is the final scientific one for the award DE- FE0000988 entitled “Simulation of Coupled Processes of Flow, Transport, and Storage of CO2 in Saline Aquifers.” The work has been divided into six tasks. In task, “Development of a Three-Phase Non-Isothermal CO2 Flow Module,” we developed a fluid property module for brine-CO2 mixtures designed to handle all possible phase combinations of aqueous phase, sub-critical liquid and gaseous CO2, supercritical CO2, and solid salt. The thermodynamic and thermophysical properties of brine-CO2 mixtures (density, viscosity, and specific enthalpy of fluid phases; partitioning of mass components among the different phases) use the same correlations as an earlier fluid property module that does not distinguish between gaseous and liquid CO2-rich phases. We verified the fluid property module using two leakage scenarios, one that involves CO2 migration up a blind fault and subsequent accumulation in a secondary “parasitic” reservoir at shallower depth, and another investigating leakage of CO2 from a deep storage reservoir along a vertical fault zone. In task, “Development of a Rock Mechanical Module,” we developed a massively parallel reservoir simulator for modeling THM processes in porous media brine aquifers. We derived, from the fundamental equations describing deformation of porous elastic media, a momentum conservation equation relating mean stress, pressure, and temperature, and incorporated it alongside the mass and energy conservation equations from the TOUGH2 formulation, the starting point for the simulator. In addition, rock properties, namely permeability and porosity, are functions of effective stress and other variables that are obtained from the literature. We verified the simulator formulation and numerical implementation using analytical solutions and example problems from the literature. For the former, we matched a one-dimensional consolidation problem and a two-dimensional simulation of the Mandel-Cryer effect. For the latter, we obtained a good match of temperature and gas saturation profiles, and surface uplift, after injection of hot fluid into a model of a caldera structure. In task, “Incorporation of Geochemical Reactions of Selected Important Species,” we developed a novel mathematical model of THMC processes in porous and fractured saline aquifers, simulating geo-chemical reactions associated with CO2 sequestration in saline aquifers. Two computational frameworks, sequentially coupled and fully coupled, were used to simulate the reactions and transport. We verified capabilities of the THMC model to treat complex THMC processes during CO2 sequestration by analytical solutions and we constructed reactive transport models to analyze the THMC process quantitatively. Three of these are 1D reactive transport under chemical equilibrium, a batch reaction model with equilibrium chemical reactions, and a THMC model with CO2 dissolution. In task “Study of Instability in CO2 Dissolution-Diffusion-Convection Processes,” We reviewed literature related to the study of density driven convective flows and on the instability of CO2 dissolution-diffusion-convection processes. We ran simulations that model the density-driven flow instability that would occur during CO2 sequestration. CO2 diffused through the top of the system and dissolved in the aqueous phase there, increasing its density. Density fingers formed along the top boundary, and coalesced into a few prominent ones, causing convective flow that forced the fluid to the system bottom. These simulations were in two and three dimensions. We ran additional simulations of convective mixing with density contrast caused by variable dissolved CO2 concentration in saline water, modeled after laboratory experiments in which supercritical CO2 was circulated in the headspace above a brine saturated packed sand in a pressure vessel. As CO2 dissolved into the upper part of the saturated sand, liquid phase density increases causing instability and setting off convective mixing. We obtained good agreement

Wu, Yu-Shu; Chen, Zizhong; Kazemi, Hossein; Yin, Xiaolong; Pruess, Karsten; Oldenburg, Curt; Winterfeld, Philip; Zhang, Ronglei

2014-09-30T23:59:59.000Z

152

Summary of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in December 2009-November 2010.  

SciTech Connect (OSTI)

This document summarizes the performance of the groundwater restoration systems installed by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Utica, Nebraska, during the sixth year of system operation, from December 1, 2009, until November 30, 2010. In the project at Utica, the CCC/USDA is cooperating with multiple state and federal agencies to remove carbon tetrachloride contamination from a shallow aquifer underlying the town and to provide supplemental treated groundwater for use in the restoration of a nearby wetlands area. Argonne National Laboratory has assisted the CCC/USDA by providing technical oversight for the aquifer restoration effort and facilities during this review period. This document presents overviews of the aquifer restoration facilities (Section 2) and system operations (Section 3), then describes groundwater production results (Section 4), groundwater treatment results (Section 5), and associated groundwater monitoring, system modifications, and costs during the review period (Section 6). Section 7 summarizes the present year of operation. Performance prior to December 1, 2009, has been reviewed previously (Argonne 2005, 2006, 2008, 2009a, 2010).

LaFreniere, L. M. (Environmental Science Division)

2011-03-11T23:59:59.000Z

153

Seismic reflection imaging of a geothermal aquifer in an urban setting  

SciTech Connect (OSTI)

A seismic reflection survey that was conducted in downtown Boise, Idaho, to help city planners site a new well for injection of spent geothermal water illustrates some methods to safely and successfully employ a seismic reflection survey in an urban setting. The objective of the seismic survey was to estimate the depth and continuity of a basalt and rhyolite volcanic sequence. Well siting was based on geothermal aquifer depth, location of interpreted faults, projected thermal impact of injection on existing wells, surface pipe extension costs, and public land availability. Seismic acquisition tests and careful processing were used to ensure high-quality data while minimizing the potential for damage along city streets. A video camera placed in a sewer and a blast vibration monitor were used to confirm that energy from the seismic source (a 75-in{sup 3} land air gun) did not damage nearby buildings, street surfaces, or buried utilities along the survey lines. Walkaway seismic tests were also used to compare signal quality of the air-gun source to an explosive source for imaging targets up to 800 m depth. These tests show less signal bandwidth from the air-gun source compared to the buried explosive source, but the air-gun signal quality was adequate to meet imaging objectives. Seismic reflection results show that the top of this rhyolite/basalt sequence dips ({approximately}8--1{degree}) southwest away from the Boise foothills at depths of 200 to 800 m. Seismic methods enabled interpretation of aquifer depths along the profiles and located fault zones where injected water may encounter fracture permeability and optimally benefit the existing producing system. The acquisition and processing techniques used to locate the Boise injection well may succeed for other hydrogeologic and environmental studies in urban settings.

Liberty, L. [Boise State Univ., ID (United States). Center for Geophysical Investigation of the Shallow Subsurface] [Boise State Univ., ID (United States). Center for Geophysical Investigation of the Shallow Subsurface

1998-07-01T23:59:59.000Z

154

Minimizing Energy Consumption in a Water Distribution System: A Systems Modeling Approach  

E-Print Network [OSTI]

In a water distribution system from groundwater supply, the bulk of energy consumption is expended at pump stations. These pumps pressurize the water and transport it from the aquifer to the distribution system and to elevated storage tanks. Each...

Johnston, John

2011-08-08T23:59:59.000Z

155

Sensitivity study of CO2 storage capacity in brine aquifers withclosed boundaries: Dependence on hydrogeologic properties  

SciTech Connect (OSTI)

In large-scale geologic storage projects, the injected volumes of CO{sub 2} will displace huge volumes of native brine. If the designated storage formation is a closed system, e.g., a geologic unit that is compartmentalized by (almost) impermeable sealing units and/or sealing faults, the native brine cannot (easily) escape from the target reservoir. Thus the amount of supercritical CO{sub 2} that can be stored in such a system depends ultimately on how much pore space can be made available for the added fluid owing to the compressibility of the pore structure and the fluids. To evaluate storage capacity in such closed systems, we have conducted a modeling study simulating CO{sub 2} injection into idealized deep saline aquifers that have no (or limited) interaction with overlying, underlying, and/or adjacent units. Our focus is to evaluate the storage capacity of closed systems as a function of various reservoir parameters, hydraulic properties, compressibilities, depth, boundaries, etc. Accounting for multi-phase flow effects including dissolution of CO{sub 2} in numerical simulations, the goal is to develop simple analytical expressions that provide estimates for storage capacity and pressure buildup in such closed systems.

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

2007-02-07T23:59:59.000Z

156

In Situ Biological Uranium Remediation within a Highly Contaminated Aquifer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

157

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

158

Analysis of mineral trapping for CO2 disposal in deep aquifers  

E-Print Network [OSTI]

of Mineral Trapping for CO2 Disposal in Deep Aquifers Tianfue~mail: Tianfu Xu@lbl. gov) CO2 disposal into deep aquiferspermit significant sequestration of CO2. We performed batch

Xu, Tianfu

2014-01-01T23:59:59.000Z

159

E-Print Network 3.0 - aquifer grindsted denmark Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

worldwide potential: very big Deep saline aquifers 400 - 10,000 Gt (16 - 400yr) Oil and gas... Party Group Sci Tech,. Holyrood 10 Injection: buoyant, then lateral Injection Top...

160

E-Print Network 3.0 - arsenious quaternary aquifer Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(m s1 ) Unit type Till Quaternary drift 3 108 -3 106 Aquifer U-K Upper K shale 3 1010... Quaternary Science Reviews 26 (2007) 1384-1397 Modeling the subglacial...

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

E-Print Network 3.0 - aquifer recharge investigations Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the upper confining layer. In this case, there is a no-flow boundary... is confined by shale above and by granite below. The aquifer ... Source: Sukop, Mike - Department of Earth...

162

E-Print Network 3.0 - aquifer recharge areas Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the upper confining layer. In this case, there is a no-flow boundary... is confined by shale above and by granite below. The aquifer ... Source: Sukop, Mike - Department of Earth...

163

E-Print Network 3.0 - aveiro quaternary aquifer Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(m s1 ) Unit type Till Quaternary drift 3 108 -3 106 Aquifer U-K Upper K shale 3 1010... Quaternary Science Reviews 26 (2007) 1384-1397 Modeling the subglacial...

164

Evaluation of the impacts of climate changes on the coastal Chaouia aquifer, Morocco, using numerical modeling  

Science Journals Connector (OSTI)

The aquifer of the Chaouia Coast, Morocco constitutes an example of groundwater resources subjected to intensive and uncontrolled withdrawals in a semi-arid region. The analysis of the trends of precipitation ...

J. Moustadraf; M. Razack; M. Sinan

2008-11-01T23:59:59.000Z

165

BPA, electric co-op and irrigation district testing aquifer recharge  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wednesday, April 4, 2012 CONTACT: Doug Johnson, 503-230-5840 or 503-230-5131 BPA, electric co-op and irrigation district testing aquifer recharge Dispatching recharge pumping...

166

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

167

Aquifer testing data package for 1993 200-UP-1 Groundwater Operable Unit  

SciTech Connect (OSTI)

The following aquifer testing data supported 1993 Interim Remedial Measure field work for the U-1 and U-2 crib area near the uranium technetium and nitrate plumes beneath the U Plant Aggregate Area. The purpose of aquifer testing was to fill in hydraulic conductivity data gaps in the western portion of 200 West Area and help refine the hydrogeologic conceptual model. This data package reports data collected in accordance with the description of work released in 1993 by L.C. Swanson, entitled Description of Work for the 200-UP-1 Aquifer Testing Activity. These data are analyzed in the document Aquifer Test Analysis Results for 1993 200-UP-1 Groundwater Operable Unit. Slug tests were conducted at 7 existing wells, and pumping tests were conducted at 2 of those same existing wells.

Swanson, L.C.

1994-06-24T23:59:59.000Z

168

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...

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

2006-01-01T23:59:59.000Z

169

E-Print Network 3.0 - aquifer heterogeneity completion Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 What can be learned from sequential multi-well pumping tests in fracture-karst media? A case study in Zhangji, China Summary: -karst aquifers, they are...

170

The Protection of Groundwaters Destined for Human Consumption in Karstic Aquifers. Advances Towards Safeguard Zones  

Science Journals Connector (OSTI)

Carbonate aquifers constitute a water reserve of critical importance as a source of drinking water. For this, it is necessary to establish suitable protection measures so that groundwater bodies can achieve good ...

A. Jiménez-Madrid; F. Carrasco; C. Martínez

2010-01-01T23:59:59.000Z

171

Weathered Diesel oil as a sorptive phase for hydrophobic organic compounds in aquifer materials  

E-Print Network [OSTI]

The sorptive properties of weathered diesel oil were investigated by conducting miscible displacement experiments with three hydrophobic organic compounds (HOCs), acenapthene, fluorene, and dibenzothiophene, as tracers in columns containing aquifer...

Hudson, Rondall James

2012-06-07T23:59:59.000Z

172

E-Print Network 3.0 - aquifer tests conducted Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bali, Indonesia, 25-29 April 2010 Summary: of Shallow Aquifers: Decision-Aid Tool for Heat-Pump Installation Sophie Bezelgues1 , Jean-Claude Martin2... on the available data on...

173

Seawater Intrusion Assessment and Mitigation in the Coastal Aquifer of Wadi Ham  

Science Journals Connector (OSTI)

The Quaternary aquifer of Wadi Ham, UAE, is naturally replenished by the rainfall as well as from the water storage in the ponding area. The construction of ... from the shoreline and the depth below the seawater

Mohsen Sherif; Mohamed Almulla; Ampar Shetty

2013-01-01T23:59:59.000Z

174

Simulation of microbial transport and carbon tetrachloride biodegradation in intermittently-fed aquifer columns  

E-Print Network [OSTI]

Simulation of microbial transport and carbon tetrachloride biodegradation in intermittently associated with carbon tetrachloride (CT) biodegradation in laboratory aquifer columns operated with a pulsed Hydrology: Groundwater transport; KEYWORDS: biodegradation, carbon tetrachloride, microbial transport

175

Laboratory Experiments to Evaluate Diffusion of 14C into Nevada Test Site Carbonate Aquifer Matrix  

SciTech Connect (OSTI)

Determination of groundwater flow velocities at the Nevada Test Site is important since groundwater is the principal transport medium of underground radionuclides. However, 14C-based groundwater velocities in the carbonate aquifers of the Nevada Test Site are several orders of magnitude slower than velocities derived from the Underground Test Area regional numerical model. This discrepancy has been attributed to the loss or retardation of 14C from groundwater into the surrounding aquifer matrix making 14C-based groundwater ages appear much older. Laboratory experiments were used to investigate the retardation of 14C in the carbonate aquifers at the Nevada Test Site. Three sets of experiments were conducted evaluating the diffusion of 14C into the carbonate aquifer matrix, adsorption and/or isotopic exchange onto the pore surfaces of the carbonate matrix, and adsorption and/or isotopic exchange onto the fracture surfaces of the carbonate aquifer. Experimental results a nd published aquifer matrix and fracture porosities from the Lower Carbonate Aquifer were applied to a 14C retardation model. The model produced an extremely wide range of retardation factors because of the wide range of published aquifer matrix and fracture porosities (over three orders of magnitude). Large retardation factors suggest that groundwater with very little measured 14C activity may actually be very young if matrix porosity is large relative to the fracture porosity. Groundwater samples collected from highly fractured aquifers with large effective fracture porosities may have relatively small correction factors, while samples from aquifers with a few widely spaced fractures may have very large correction factors. These retardation factors were then used to calculate groundwater velocities from a proposed flow path at the Nevada Test Site. The upper end of the range of 14C correction factors estimated groundwater velocities that appear to be at least an order of magnitude too high compared to published velocities. The lower end of the range of 14C correction factors falls within the range of reported velocities. From these results, future experimental studies (both laboratory and field scale) to support 14C groundwater age dating should focus on obtaining better estimates of aquifer properties including matrix and fracture porosities.

Ronald L. Hershey; William Howcroft; Paul W. Reimus

2003-03-01T23:59:59.000Z

176

Effect of methane pulsation on methanotropic biodegradation of trichloroethylene in an in-situ model aquifer  

E-Print Network [OSTI]

of Technology Chair of Advisory Committee: Dr. Charlie G. Coble Trichloroethylene (TCE) which is used as a solvent in many industries is one of the most common contaminant of ground waters. TCE can be degraded by methanotrophic bacteria, along with other... heterotrophic organisms, into inorganic end products. An in situ model aquifer with six sampling zones was used to degrade TCE aerobically by stimulating a methanotrophic population. Three experiments were done on the aquifer. TCE concentration for all...

Natarajan, Ranjan

1993-01-01T23:59:59.000Z

177

Geology and hydrogeology of the Edwards Aquifer Transition Zone, Bexar County, Texas  

E-Print Network [OSTI]

GEOLOGY AND HYDROGEOLOGY OF THE EDWARDS AQUIFER TRANSITION ZONE, BEXAR COUNTY, TEXAS A Thesis by JEFFREY STEPHEN HEATHERY Submitted to the Office of Graduate Studies of Texas AQh University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1989 Major Subject: Geology GEOLOGY AND HYDROGEOLOGY OF THE EDWARDS AQUIFER TRANSITION ZONE, BEXAR COUNTY, TEXAS A Thesis by JEFFREY STEPHEN HEATHERY Approved as to style and content by: Chris pher C. Mathewson...

Neathery, Jeffrey Stephen

1989-01-01T23:59:59.000Z

178

Effect of sediment concentration on artificial well recharge in a fine sand aquifer  

E-Print Network [OSTI]

EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AQUIFER A Thesis By MD. ATAUR RAHMAN Submitted to the Graduate College of the Texas ASM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1968 Major Subject: Agricultural Engineering EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AqUIFER A Thesis By MD. ATAUR RAHMAN Approved as to style and content by: (Chairman of ommitt ) ( a o...

Rahman, Mohammed Ataur

1968-01-01T23:59:59.000Z

179

Transient Inverse Calibration of Site-Wide Groundwater Model to Hanford Operational Impacts from 1943 to 1996--Alternative Conceptual Model Considering Interaction with Uppermost Basalt Confined Aquifer  

SciTech Connect (OSTI)

The baseline three-dimensional transient inverse model for the estimation of site-wide scale flow parameters, including their uncertainties, using data on the transient behavior of the unconfined aquifer system over the entire historical period of Hanford operations, has been modified to account for the effects of basalt intercommunication between the Hanford unconfined aquifer and the underlying upper basalt confined aquifer. Both the baseline and alternative conceptual models (ACM-1) considered only the groundwater flow component and corresponding observational data in the 3-Dl transient inverse calibration efforts. Subsequent efforts will examine both groundwater flow and transport. Comparisons of goodness of fit measures and parameter estimation results for the ACM-1 transient inverse calibrated model with those from previous site-wide groundwater modeling efforts illustrate that the new 3-D transient inverse model approach will strengthen the technical defensibility of the final model(s) and provide the ability to incorporate uncertainty in predictions related to both conceptual model and parameter uncertainty. These results, however, indicate that additional improvements are required to the conceptual model framework. An investigation was initiated at the end of this basalt inverse modeling effort to determine whether facies-based zonation would improve specific yield parameter estimation results (ACM-2). A description of the justification and methodology to develop this zonation is discussed.

Vermeul, Vincent R.; Cole, Charles R.; Bergeron, Marcel P.; Thorne, Paul D.; Wurstner, Signe K.

2001-08-29T23:59:59.000Z

180

Developing conservation plan for the Edwards Aquifer: Stakeholders reach consensus resolution to balance protection of endangered species and water use  

E-Print Network [OSTI]

Fall 2012 tx H2O 17 Story by Courtney Smith ] Comal and San Marcos springs are the only known habitats for eight federally listed threatened or endangered species. Photo courtesy of the Edwards Aquifer Authority. What does it take... Aquifer region of Texas achieved a milestone in a struggle that has lasted nearly six decades. Working together, participants in the Edwards Aquifer Recovery Implementation Program (EARIP) developed a habitat conservation plan that will protect...

Smith, Courtney

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1  

SciTech Connect (OSTI)

The National Risk Assessment Partnership (NRAP) consists of 5 U.S DOE national laboratories collaborating to develop a framework for predicting the risks associated with carbon sequestration. The approach taken by NRAP is to divide the system into components, including injection target reservoirs, wellbores, natural pathways including faults and fractures, groundwater and the atmosphere. Next, develop a detailed, physics and chemistry-based model of each component. Using the results of the detailed models, develop efficient, simplified models, termed reduced order models (ROM) for each component. Finally, integrate the component ROMs into a system model that calculates risk profiles for the site. This report details the development of the Groundwater Geochemistry ROM for the Edwards Aquifer at PNNL. The Groundwater Geochemistry ROM for the Edwards Aquifer uses a Wellbore Leakage ROM developed at LANL as input. The detailed model, using the STOMP simulator, covers a 5x8 km area of the Edwards Aquifer near San Antonio, Texas. The model includes heterogeneous hydraulic properties, and equilibrium, kinetic and sorption reactions between groundwater, leaked CO2 gas, brine, and the aquifer carbonate and clay minerals. Latin Hypercube sampling was used to generate 1024 samples of input parameters. For each of these input samples, the STOMP simulator was used to predict the flux of CO2 to the atmosphere, and the volume, length and width of the aquifer where pH was less than the MCL standard, and TDS, arsenic, cadmium and lead exceeded MCL standards. In order to decouple the Wellbore Leakage ROM from the Groundwater Geochemistry ROM, the response surface was transformed to replace Wellbore Leakage ROM input parameters with instantaneous and cumulative CO2 and brine leakage rates. The most sensitive parameters proved to be the CO2 and brine leakage rates from the well, with equilibrium coefficients for calcite and dolomite, as well as the number of illite and kaolinite sorption sites proving to be of secondary importance. The Groundwater Geochemistry ROM was developed using nonlinear regression to fit the response surface with a quadratic polynomial. The goodness of fit was excellent for the CO2 flux to the atmosphere, and very good for predicting the volumes of groundwater exceeding the pH, TDS, As, Cd and Pb threshold values.

Bacon, Diana H.

2013-03-31T23:59:59.000Z

182

The potential use of surfactant and cosolvent soil washing as adjuvant for in-situ aquifer restoration.  

E-Print Network [OSTI]

??The use of surfactant and aqueous cosolvent soil washing for the restoration of contaminated aquifers was investigated by laboratory experimentation and literature review. The effect… (more)

Ziegenfuss, Philip Scott

1988-01-01T23:59:59.000Z

183

Colloid-facilitated transport of radium and thorium in the Memphis Aquifer, Memphis, Tennessee, U.S.A.  

E-Print Network [OSTI]

??The significance of groundwater colloidal transport was examined in the context of the Memphis Aquifer (Memphis, Tennessee) in the vicinity of the Sheahan well field.… (more)

Todd, Vincent Michael

2013-01-01T23:59:59.000Z

184

Groundwater Flow Systems at the Nevada Test Site, Nevada: A Synthesis of Potentiometric Contours, Hydrostratigraphy, and Geologic Structures  

SciTech Connect (OSTI)

Contaminants introduced into the subsurface of the Nevada Test Site by underground nuclear testing are of concern to the U.S. Department of Energy and regulators responsible for protecting human health and safety. The potential for contaminant movement away from the underground test areas and into the accessible environment is greatest by groundwater transport. The primary hydrologic control on this transport is evaluated and examined through a series of contour maps developed to represent the hydraulic-head 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. A map of the hydraulic-head 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 and discussed in general terms as being one of two types: alluvial-volcanic, or carbonate. Both aquifer types are subdivided and mapped as independent regional and local aquifers, based on the continuity of their component rock. Groundwater-flow directions, approximated from potentiometric contours that were developed from the hydraulic-head distribution, are indicated on the maps and discussed for each of the regional aquifers and for selected local aquifers. Hydraulic heads vary across the study area and are interpreted to range in altitude from greater than 5,000 feet in a regional alluvial-volcanic aquifer beneath a recharge area in the northern part of the study area to less than 2,300 feet in regional alluvial-volcanic and carbonate aquifers in the southwestern part of the study area. Flow directions throughout the study area are dominantly south-southwest with some local deviations. Vertical hydraulic gradients between aquifer types are downward throughout most of the study area; however, flow from the alluvial-volcanic aquifer into the underlying carbonate aquifer, where both aquifers are present, is believed to be minor because of an intervening confining unit. Limited exchange of water between aquifer types occurs by diffuse flow through the confining unit, by focused flow along fault planes, or by direct flow where the confining unit is locally absent. Interflow between regional aquifers is evaluated and mapped to define major flow paths. These flow paths delineate tributary flow systems, which converge to form intermediate and regional flow systems. The implications of these flow systems in controlling transport of radionuclides away from the underground test areas at the Nevada Test Site are briefly discussed. Additionally, uncertainties in the delineation of aquifers, the development of potentiometric contours, and the identification of flow systems are identified and evaluated. Eleven tributary flow systems and three larger flow systems are mapped in the Nevada Test Site area. Flow systems within the alluvial-volcanic aquifer dominate the western half of the study area, whereas flow systems within the carbonate aquifer are most prevalent in the southeastern half of the study area. Most of the flow in the regional alluvial-volcanic aquifer that moves through the underground testing area on Pahute Mesa is discharged to the land surface at springs and seeps in Oasis Valley. Flow in the regional carbonate aquifer is internally compartmentalized by major geologic structures, primarily thrust faults, which constrain flow into separate corridors. Contaminants that reach the regional carbonate aquifer from testing areas in Yucca and Frenchman Flats flow toward downgradient discharge areas through the Alkali Flat-Furnace Creek Ranch or Ash Meadows flow systems and their tributaries.

Fenelon, Joseph M.; Sweetkind, Donald S.; Laczniak, Randell J.

2010-01-25T23:59:59.000Z

185

Evaluating impacts of CO2 gas intrusion into a confined sandstone aquifer: Experimental results  

SciTech Connect (OSTI)

Deep subsurface storage and sequestration of CO2 has been identified as a potential mitigation technique for rising atmospheric CO2 concentrations. Sequestered CO2 represents a potential risk to overlying aquifers if the CO2 leaks from the deep storage reservoir. Experimental and modeling work is required to evaluate potential risks to groundwater quality and develop a systematic understanding of how CO2 leakage may cause important changes in aquifer chemistry and mineralogy by promoting dissolution/precipitation, adsorption/desorption, and redox reactions. Sediments from the High Plains aquifer in Kansas, United States, were used in this investigation, which is part of the National Risk Assessment Partnership Program sponsored by the US Department of Energy. This aquifer was selected to be representative of consolidated sand and gravel/sandstone aquifers overlying potential CO2 sequestration repositories within the continental US. In this paper, we present results from batch experiments conducted at room temperature and atmospheric pressure with four High Plains aquifer sediments. Batch experiments simulate sudden, fast, and short-lived releases of the CO2 gas as would occur in the case of well failure during injection. Time-dependent release of major, minor, and trace elements were determined by analyzing the contacting solutions. Characterization studies demonstrated that the High Plains aquifer sediments were abundant in quartz and feldspars, and contained about 15 to 20 wt% montmorillonite and up to 5 wt% micas. Some of the High Plains aquifer sediments contained no calcite, while others had up to about 7 wt% calcite. The strong acid extraction tests confirmed that in addition to the usual elements present in most soils, rocks, and sediments, the High Plains aquifer sediments had appreciable amounts of As, Cd, Pb, Cu, and occasionally Zn, which potentially may be mobilized from the solid to the aqueous phase during or after exposure to CO2. However, the results from the batch experiments showed that the High Plains sediments mobilized only low concentrations of trace elements (potential contaminants), which were detected occasionally in the aqueous phase during these experiments. Importantly, these occurrences were more frequent in the calcite-free sediment. Results from these investigations provide useful information to support site selection, risk assessment, and public education efforts associated with geological CO2 storage and sequestration.

Qafoku, Nikolla; Lawter, Amanda R.; Shao, Hongbo; Wang, Guohui; Brown, Christopher F.

2014-12-31T23:59:59.000Z

186

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

187

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

Science Journals Connector (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

188

Evaluation of a distributed numerical simulation optimization approach applied to aquifer remediation  

Science Journals Connector (OSTI)

In this paper we evaluate a distributed approach which uses numerical simulation and optimization techniques to automatically find remediation solutions to a hypothetical contaminated aquifer. The repeated execution of the numerical simulation model of the aquifer through the optimization cycles tends to be computationally expensive. To overcome this drawback, the numerical simulations are executed in parallel using a network of heterogeneous workstations. Performance metrics for heterogeneous environments are not trivial; a new way of calculating speedup and efficiency for Bag-of-Tasks (BoT) applications is proposed. The performance of the parallel approach is evaluated.

Patrícia A.P. Costa; Eduardo L.M. Garcia; Bruno Schulze; Helio J.C. Barbosa

2010-01-01T23:59:59.000Z

189

Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile  

E-Print Network [OSTI]

Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile David E] Solutions to the Boussinesq equation describing drainage into a fully penetrating channel have been used natural soils exhibit this characteristic. We derive a new set of analytical solutions to the Boussinesq

Selker, John

190

Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography  

E-Print Network [OSTI]

can be used in situations where surface seismic reflection has failed e.g., Liberty et al., 1999Investigating the stratigraphy of an alluvial aquifer using crosswell seismic traveltime tomography In this study, we investigate the use of crosswell P-wave seismic tomography to obtain spatially extensive

Barrash, Warren

191

Numerical solutions of moment equations for flow in heterogeneous composite aquifers  

E-Print Network [OSTI]

Numerical solutions of moment equations for flow in heterogeneous composite aquifers C. L. Winter on the composite media theory of Winter and Tartakovsky [2000, 2002], which allows one to derive and solve moment a representative composite medium to investigate the robustness of perturbation approximations in porous medium

Tartakovsky, Daniel M.

192

Using tracer experiments to determine deep saline aquifers caprocks transport characteristics for carbon dioxide storage  

E-Print Network [OSTI]

procedure in high permeability rocks such as hydrocarbon reservoirs or aquifers. However, the permeability to the determination of transport characteristics of tight rock formations. Main obtained parameters are intrinsic permeability and the Klinkenberg coefficient; permeability as low as 10-21 m2 is easily attainable. Some

Boyer, Edmond

193

Introduction Competition for H2 in a PCE-contaminated aquifer  

E-Print Network [OSTI]

Introduction Competition for H2 in a PCE-contaminated aquifer Noam Shani1, Pierre Rossi2. -1.0 0.0 0.8 -0.8 0.0 1.0 %PCE %VC Fe(II) Mn(II) NO3 SO4 PCE TCE VC tVOCs T pH Cond Redox TOC Na K Mg

194

BENEFITS OF IMPROVING WATER QUALITY IN THE ABBOTSFORD AQUIFER: AN APPLICATION OF CONTINGENT VALUATION METHODS  

E-Print Network [OSTI]

that, with further development of the region, there may be pesticide or heavy metal leaching problems of the Canadian Department of the Environment. #12;Executive Summary Nitrate pollution is a problem in many exmple of groundwater pollution. This aquifer is the primary source of municipal water for the District

195

The Effects of Energy Prices on Groundwater Extraction in Agriculture in the High Plains Aquifer*  

E-Print Network [OSTI]

in the High Plains Aquifer. Dumler et al. (2009) estimate that the energy cost of extracting irrigation water1 The Effects of Energy Prices on Groundwater Extraction in Agriculture in the High Plains-752-0824 Abstract In this article we examine the effects of energy prices on groundwater extraction using

Lin, C.-Y. Cynthia

196

Analytical study of capture zone of a horizontal well in a confined aquifer  

E-Print Network [OSTI]

to the remediation of contaminated ground water (Langseth, 1990; Tarsh- ish, 1992; Cleveland, 1994; Wilson and Kenda as a part of an aquifer whose ground water will flow to that well. Steward (1999) concluded that Journal a large planar area during remediation, and is more efficient in removing contaminant relative to vertical

Zhan, Hongbin

197

AQUIFER BIOTHERMOREMEDIATION USING HEAT PUMPS: SOUND THEORETICAL BASIS AND RESULTS ON THERMAL, GEOCHEMICAL AND  

E-Print Network [OSTI]

example, the long-term use of groundwater heat pumps for air conditioning of homes or buildings can induce and hydrogeological background. The presence of organic pollutants in the aquifer can amplify these phenomena/or the well productivity, (ii) an inappropriate temperature for the use of groundwater heat pumps for air

Boyer, Edmond

198

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material  

E-Print Network [OSTI]

Column Studies of Anaerobic Carbon Tetrachloride Biotransformation with Hanford Aquifer Material bioremediation of carbon tetrachloride (CT) at the Hanford site in south- central Washington state. Benzoate in south- central Washington state has been a defense materials pro- duction complex since 1943. Carbon

Semprini, Lewis

199

Composition and Diversity of Microbial Communities Recovered from Surrogate Minerals Incubated in an Acidic Uranium-Contaminated Aquifer  

Science Journals Connector (OSTI)

...to that from the quartz sand medium, suggesting that...separating hematite and sand. c Sediment1, unsaturated...communities in a Pleistocene sand aquifer and their in vitro...and distribution in deep gas hydrate sediments from the Cascadia...

Catherine L. Reardon; David E. Cummings; Lynn M. Petzke; Barry L. Kinsall; David B. Watson; Brent M. Peyton; Gill G. Geesey

2004-10-01T23:59:59.000Z

200

Development of a regional groundwater flow model for the area of the Idaho National Engineering Laboratory, Eastern Snake River Plain Aquifer  

SciTech Connect (OSTI)

This report documents a study conducted to develop a regional groundwater flow model for the Eastern Snake River Plain Aquifer in the area of the Idaho National Engineering Laboratory. The model was developed to support Waste Area Group 10, Operable Unit 10-04 groundwater flow and transport studies. The products of this study are this report and a set of computational tools designed to numerically model the regional groundwater flow in the Eastern Snake River Plain aquifer. The objective of developing the current model was to create a tool for defining the regional groundwater flow at the INEL. The model was developed to (a) support future transport modeling for WAG 10-04 by providing the regional groundwater flow information needed for the WAG 10-04 risk assessment, (b) define the regional groundwater flow setting for modeling groundwater contaminant transport at the scale of the individual WAGs, (c) provide a tool for improving the understanding of the groundwater flow system below the INEL, and (d) consolidate the existing regional groundwater modeling information into one usable model. The current model is appropriate for defining the regional flow setting for flow submodels as well as hypothesis testing to better understand the regional groundwater flow in the area of the INEL. The scale of the submodels must be chosen based on accuracy required for the study.

McCarthy, J.M.; Arnett, R.C.; Neupauer, R.M. [and others

1995-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

The construction and use of aquifer influence functions in determining original gas in place for water-drive gas reservoirs  

E-Print Network [OSTI]

THE CONSTRUCTION AND USE OF AQUIFER INFLUENCE FUNCTIONS IN DETERMINING ORIGINAL GAS IN PLACE FOR WATER-DRIVE GAS RESERVOIRS A Thesis by RONALD JOSEPH GAJDICA Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1986 Major Subject: Petroleum Engineering THE CONSTRUCTION AND USE OF AQUIFER INFLUENCE FUNCTIONS IN DETERMINING ORIGINAL GAS IN PLACE FOR MATER-DRIVE GAS RESERVOIRS A Thesis by RONALD JOSEPH...

Gajdica, Ronald Joseph

1986-01-01T23:59:59.000Z

202

Options, knowledge, and satisfaction of Texas residents affected by Edwards Aquifer issues: implications for education and government  

E-Print Network [OSTI]

OPINIONS, KNOWLEDGE, AND SATISFACTION OF TEXAS RESIDENTS AFFECTED BY EDWARDS AQUIFER ISSUES: IMPLICATIONS FOR EDUCATION AND GOVERNMENT A Thesis by AMY SUZETTE KINNEY Submitted to Texas A&M University in partial fulfillment of the requirements... Education ABSTRACT Opinions, Knowledge, and Satisfaction of Texas Residents Affected by Edwards Aquifer Issues: Implications for Education and Government. (December 1994) Amy Suzette Kinney, B. S. , Tarleton State University Chair of Advisory Committee...

Kinney, Amy Suzette

1994-01-01T23:59:59.000Z

203

Field Demonstration of CO2 Leakage Detection in Potable Aquifers with a Pulselike CO2-Release Test  

Science Journals Connector (OSTI)

Field Demonstration of CO2 Leakage Detection in Potable Aquifers with a Pulselike CO2-Release Test ... This study presents two field pulselike CO2-release tests to demonstrate CO2 leakage detection in a shallow aquifer by monitoring groundwater pH, alkalinity, and dissolved inorganic carbon (DIC) using the periodic groundwater sampling method and a fiber-optic CO2 sensor for real-time in situ monitoring of dissolved CO2 in groundwater. ...

Changbing Yang; Susan D. Hovorka; Jesus Delgado-Alonso; Patrick J. Mickler; Ramón H. Treviño; Straun Phillips

2014-11-10T23:59:59.000Z

204

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

205

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

SciTech Connect (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

206

Microbial Activity during Biodegradation and its Effects on Groundwater Velocity in a Contaminated Aquifer  

E-Print Network [OSTI]

, toluene, ethylbenzene, and xylene isomers (BTEX) (Yerushalmi et al., 1999; Landmeyer and Bradley 2003). Such passive methods rely on the ambient groundwater velocity to deliver contaminants to the reactive zone. Biostimulation techniques operate... Microbial Activity during Biodegradation and its Effects on Groundwater Velocity in a Contaminated Aquifer by Copyright 2008 Peter Curtis Schillig B.S. (Dept. Hons), Ohio University, 2005 Submitted to the Department...

Schillig, Peter C.

2008-03-26T23:59:59.000Z

207

Nature and extent of lava-flow aquifers beneath Pahute Mesa, Nevada Test Site  

SciTech Connect (OSTI)

Work is currently underway within the Underground Test Area subproject of the US Department of Energy/Nevada Operations Office Environmental Restoration Program to develop corrective action plans in support of the overall corrective action strategy for the Nevada Test Site as established in the Federal Facility Agreement and Consent Order (FFACO, 1996). A closure plan is currently being developed for Pahute Mesa, which has been identified in the FFACO as consisting of the Western and Central Pahute Mesa Corrective Action Units. Part of this effort requires that hydrogeologic data be compiled for inclusion in a regional model that will be used to predict a contaminant boundary for these Corrective Action Units. Hydrogeologic maps have been prepared for use in the model to define the nature and extent of aquifers and confining units that might influence the flow of contaminated groundwater from underground nuclear tests conducted at Pahute Mesa. Much of the groundwater flow beneath Pahute Mesa occurs within lava-flow aquifers. An understanding of the distribution and hydraulic character of these important hydrogeologic units is necessary to accurately model groundwater flow beneath Pahute Mesa. This report summarizes the results of a study by Bechtel Nevada geologists to better define the hydrogeology of lava-flow aquifers at Pahute Mesa. The purpose of this study was twofold: (1) aid in the development of the hydrostratigraphic framework for Pahute Mesa, and (2) provide information on the distribution and hydraulic character of lava-flow aquifers beneath Pahute Mesa for more accurate computer modeling of the Western and Central Pahute Mesa Corrective Action Units.

Prothro, L.B.; Drellack, S.L. Jr.

1997-09-01T23:59:59.000Z

208

Delineating Alluvial Aquifer Heterogeneity Using Resistivity and GPR Data  

E-Print Network [OSTI]

systems is a fundamental but challenging aspect of ground water remediation and typically revolves around an overall better sub- surface model for ground water flow and contaminant transport. Electrical resistivity- dimensional ground penetrating radar (GPR) and direct current (DC) resistivity data were collected

Sailhac, Pascal

209

Use of a 2-inch, dual screen well to conduct aquifer tests in the upper and lower Lost lake aquifer zones: Western sector, A/M area, SRS  

SciTech Connect (OSTI)

The Western Sector, A/M Area is located just west of the M-Area Settling Basin on an upland area. The area is adjacent to the gently inclined area where the upland drops off to the Savannah River floodplain. Water in the parts of the uppermost aquifers contains dissolved contaminants which originated at the land surface and have leached downward into the groundwater. Subsurface contamination originated in the locality of the M-Area Settling Basin and Lost Lake, which is a Carolina Bay. These locations functioned as disposal sites for industrial solvents during the early years of operation of the Savannah River Site. The primary groundwater contaminants are trichloroethylene (TCE) and tetrachloroethylene (PCE), and groundwater concentrations of TCE are significantly greater than the PCE.

Hiergesell, R.A.; Novick, J.S.

1996-09-01T23:59:59.000Z

210

Role of Nitrate in Conditioning Aquifer Sediments for Technetium Bioreduction  

Science Journals Connector (OSTI)

Earth System Science Institute, School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, U.K., Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Manchester, M13 9PL, U.K., and Centre for Radiochemistry Research, The University of Manchester, Manchester, M13 9PL, U.K. ... These results have implications for Tc-cycling in contaminated environments where nitrate has been considered undesirable, but where it may enhance Fe(III)-reduction via a novel pH “conditioning” step. ... Wilkins, M. J.; Livens, F. R.; Vaughan, D. J.; Beadle, I.; Lloyd, J. R. The influence of microbial redox cycling on radionuclide mobility in the subsurface at a low-level radioactive waste storage site Geobiology 2007, 5, 293– 301 ...

Gareth T. W. Law; Andrea Geissler; Christopher Boothman; Ian T. Burke; Francis R. Livens; Jonathan R. Lloyd; Katherine Morris

2009-11-10T23:59:59.000Z

211

Semi-analytical solutions for stream–aquifer interactions under triangular stream-stage variations and its application to study urbanization impacts in an ungaged watershed of south Texas  

Science Journals Connector (OSTI)

Simple yet physically based models to evaluate stream–aquifer interactions during a flooding event subject to triangular stream stage variation ... urbanization on stream–aquifer interactions in the Arroyo Colorado

E. Annette Hernandez; Venkatesh Uddameri

2014-03-01T23:59:59.000Z

212

Desorption Behavior of Carbon Tetrachloride and Chloroform in contaminated Low Organic Carbon Aquifer Sediments  

SciTech Connect (OSTI)

Experimental determination of contaminant behavior in deep aquifer sediments is challenging because of the cost and difficulty associated with sample collection. On the other hand, parameter values important to contaminant transport (e.g., distribution coefficient) derived from such sediments may be more accurate than those determined by estimation methods. Furthermore, experiments performed with sediments where the contaminants have been in contact with the sediments for decades are more likely to reveal kinetic controls on contaminant transport not as readily revealed in short contact time experiments. We report the first measurements of CCl4 and CHCl3 distribution coefficients in contaminated Hanford sediments with varying physical/chemical properties.

Riley, Robert G.; Szecsody, Jim E.; Sklarew, Debbie S.; Mitroshkov, Alexandre V.; Gent, Philip M.; Brown, Christopher F.; Thompson, Christopher J.

2010-05-01T23:59:59.000Z

213

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

SciTech Connect (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

214

Dynamics of Microbial Community Composition and Function during In Situ Bioremediation of a Uranium-Contaminated Aquifer  

SciTech Connect (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 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.

Van Nostrand, Dr. Joy D. [Oklahoma University; Wu, Liyou [University of Oklahoma, Norman; Wu, Weimin [Stanford University; Huang, Zhijian [Sun Yat-Sen University, Guangzhou, China; Gentry, Terry J [ORNL; Deng, Ye [University of Oklahoma; Carley, Jack M [ORNL; Carroll, Sue L [ORNL; He, Zhili [University of Oklahoma; Gu, Baohua [ORNL; Luo, Jian [Georgia Institute of Technology; Criddle, Craig [Stanford University; Watson, David B [ORNL; Jardine, Philip M [ORNL; Marsh, Terence [Michigan State University, East Lansing; Tiedje, James [Michigan State University, East Lansing; Hazen, Terry [Lawrence Berkeley National Laboratory (LBNL); Zhou, Jizhong [University of Oklahoma, Norman

2011-01-01T23:59:59.000Z

215

Hydrogen Chemistry of Basalt Aquifers --Treiman et al. 282 (5397): 21... http://www.sciencemag.org/cgi/content/full/282/5397/2194e?maxtosh... 1 of 2 2/19/2008 1:26 PM  

E-Print Network [OSTI]

Hydrogen Chemistry of Basalt Aquifers -- Treiman et al. 282 (5397): 21... http. 2194 DOI: 10.1126/science.282.5397.2194e LETTERS Hydrogen Chemistry of Basalt Aquifers In their report "Evidence against hydrogen-based microbial ecosystems in basalt aquifers" (14 Aug., p. 976), Robert T

Lovley, Derek

216

Revised Hydrogeology for the Suprabasalt Aquifer System, 200-East Area and Vicinity, Hanford Site, Washington  

SciTech Connect (OSTI)

This study supports the Hanford Groundwater/Vadose integration project objectives to better understand the risk of groundwater contamination and potential risk to the public via groundwater flow paths. The primary objective of this study was to refine the conceptual groundwater flow model for the 200-East Area and vicinity.

Williams, Bruce A.; Bjornstad, Bruce N.; Schalla, Ronald; Webber, William D.

2000-04-20T23:59:59.000Z

217

Increased fermentation activity and persistent methanogenesis in a model aquifer system  

E-Print Network [OSTI]

Oil & Gas Pollution Control, China University of Petroleum-Beijing, 18 Fuxue Rd., Beijing 102249 of ethanol, despite clean air-saturated water flowing continuously through the tank at a relative high@rice.edu (P.J.J. Alvarez). 1 Current address: State Key Laboratory of Heavy Oil Processing, Beijing Key Lab

Alvarez, Pedro J.

218

Revised Hydrogeology for the Suprabasalt Aquifer System, 200-West Area and Vicinity, Hanford Site, Washington  

SciTech Connect (OSTI)

The primary objective of this study was to refine the conceptual groundwater flow model for the 200-West Area and vicinity. This is the second of two reports that combine to cover the 200 Area Plateau, an area that holds the largest inventory of radionuclide and chemical waste on the Hanford Site.

Williams, Bruce A.; Bjornstad, Bruce N.; Schalla, Ronald; Webber, William D.

2002-05-14T23:59:59.000Z

219

Mineralogical and Microbial Controls on Iron Reduction in a Contaminated Aquifer-Wetland System  

E-Print Network [OSTI]

terminal electron accepting processes, iron reduction has the added complexity that its oxidized form (ferric iron) exists primarily as one of several solid phases in environments with pH greater than 3. Thus, the distribution and form of ferric iron...

Howson, Andrea Melissa

2011-02-22T23:59:59.000Z

220

E-Print Network 3.0 - aquifer system idaho Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

; Environmental Sciences and Ecology ; Geosciences 3 Carbon-14 dating of ground water in the Palouse Basin of the Columbia river basalts Summary: . Summary of the Columbia...

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

TWO WELL STORAGE SYSTEMS FOR COMBINED HEATING AND AIRCONDITIONING BY GROUNDWATER HEATPUMPS IN SHALLOW AQUIFERS  

E-Print Network [OSTI]

In warmer climates air source heat pumps have gained widestadvantages over air source heat pumps. For example, theair source equipment is much less. The source for this kind of heat pump

Pelka, Walter

2010-01-01T23:59:59.000Z

222

Evaluation of kinetic controls on sulfate reduction in a contaminated wetland-aquifer system  

E-Print Network [OSTI]

-experimental NOGEEs (D1-D4)??????????????????????... ... 67 xiii Page Figure 4.4 Abundance of sulfate reducing bacteria (copies dsrB/ng DNA).? ... 76 Figure 4.5 Abundance of iron reducing bacteria (copies Geobact 16S rDNA/ng DNA... unrestricted waste from 1922 until 1985 when it was closed and covered with an earthen cap (Adrian et al., 1990; Christenson and Cozzarelli, 2003). A leachate plume containing elevated concentrations of dissolved organic carbon (DOC), chloride, ammonia...

Kneeshaw, Tara Ann

2009-05-15T23:59:59.000Z

223

The effects of faults on the groundwater system in the Hickory Sandstone Aquifer in Central Texas  

E-Print Network [OSTI]

-level characteristics in Regions A and B. 35 18 Water-level and pumping histories of wells in Regions A and B from 4/15/88 to 5/3/89 37 LIST OF FIGURES (Continued) Figure Page 19 Water-level elevation versus log recovery time of wells 437 and 438 in Region B... following the 1988 irrigation interval . . . . . . 39 20 Log-time versus log-drawdown of water levels in wells 438 and 404 during the well 437 pump test on May 3, 1989. . . , . . . , . . 40 21 Schematic illustration of effect of fault Fl on water...

Randolph, Leslie Carolyn

2012-06-07T23:59:59.000Z

224

Geochemistry of the Yegua Aquifer system and its relation to microbial processes  

E-Print Network [OSTI]

Two sediment cores (NP-I and NP-3) were taken from the Yegua formation in East-central Texas and analyzed for sedimentology, geochemistry, and microbiology to assess the relationship between geochemistry and microbial processes. Both cows suggest a...

Schlichenmeyer, Jeannette Leone

2012-06-07T23:59:59.000Z

225

Experiences with aquifer testing and analysis in fractured low-permeability sedimentary rocks exhibiting nonradial pumping response  

SciTech Connect (OSTI)

Multiple-well aquifer pumping tests have been used successfully to measure the bulk hydraulic properties of limestone and shale formations of the Conasauga Group of East Tennessee and to define directional components in transmissivity associated with joints and small-scale folds. This experience demonstrates that multiple-well pumping tests can be used to measure the characteristics of low-permeability fractured rocks, and it illustrates the application of data interpretation techniques that are based on models of nonradial aquifer pumping response. Analytical models that have been used to interpret pumping test data include models for simple anisotropic response and for complex pumping response in an anisotropic aquifer intersected by a single high-conductivity vertical fracture. Comparisons of results obtained using nonradial flow methods with those obtained using traditional (radial flow) analytical methods indicate that the error from radial flow methods is generally less than an order of magnitude, an insignificant error in most low-permeability settings. However, the nonradial flow methods provide much more information on structural controls on groundwater movement. Special challenges encountered in conducting aquifer pumping tests in this hydrogeologic environment include selecting a pumping rate that can be sustained after fracture storage is depleted and laying out a test configuration that is consistent with the test geometry required by the nonradial flow interpretive models. Effective test design and data interpretation thus require extensive insight into site geology.

Smith, E.D.; Vaughan, N.D.

1985-01-01T23:59:59.000Z

226

Hydraulic characterization of aquifers by thermal response testing: Validation by large-scale tank and field experiments  

E-Print Network [OSTI]

Hydraulic characterization of aquifers by thermal response testing: Validation by large-scale tank by application to a well-controlled, large-scale tank experiment with 9 m length, 6 m width, and 4.5 m depth, and by data interpretation from a field-scale test. The tank experiment imitates an advection-influenced TRT

Cirpka, Olaf Arie

227

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 (OSTI)

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

228

Determining flow, recharge, and vadose zonedrainage in anunconfined aquifer from groundwater strontium isotope measurements, PascoBasin, WA  

SciTech Connect (OSTI)

Strontium isotope compositions (87Sr/86Sr) measured in groundwater samples from 273 wells in the Pasco Basin unconfined aquifer below the Hanford Site show large and systematic variations that provide constraints on groundwater recharge, weathering rates of the aquifer host rocks, communication between unconfined and deeper confined aquifers, and vadose zone-groundwater interaction. The impact of millions of cubic meters of wastewater discharged to the vadose zone (103-105 times higher than ambient drainage) shows up strikingly on maps of groundwater 87Sr/86Sr. Extensive access through the many groundwater monitoring wells at the site allows for an unprecedented opportunity to evaluate the strontium geochemistry of a major aquifer, hosted primarily in unconsolidated sediments, and relate it to both long term properties and recent disturbances. Groundwater 87Sr/86Sr increases systematically from 0.707 to 0.712 from west to east across the Hanford Site, in the general direction of groundwater flow, as a result of addition of Sr from the weathering of aquifer sediments and from diffuse drainage through the vadose zone. The lower 87Sr/86Sr groundwater reflects recharge waters that have acquired Sr from Columbia River Basalts. Based on a steady-state model of Sr reactive transport and drainage, there is an average natural drainage flux of 0-1.4 mm/yr near the western margin of the Hanford Site, and ambient drainage may be up to 30 mm/yr in the center of the site assuming an average bulk rock weathering rate of 10-7.5 g/g/yr.

mjsingleton@lbl.gov

2004-06-29T23:59:59.000Z

229

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

SciTech Connect (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

230

Modeling The Effects Of Salt Precipitation And Kinetic Mineral Reaction On Well Injectivity Due To Carbon Dioxide Injection In Deep Saline Aquifers.  

E-Print Network [OSTI]

??Little is known about the complex processes taking place between CO2, the host formation, and in-situ brine at the conditions found within deep saline aquifers… (more)

Yeboa, Kojo

2014-01-01T23:59:59.000Z

231

Spatial and temporal controls on biogeochemical indicators at the small-scale interface between a contaminated aquifer and wetland surface water  

E-Print Network [OSTI]

from three locations exhibiting upward, downward, and negligent hydrologic flow between aquifer and wetland. PCA was used to identify the principal biogeochemical processes and to obtain factor scores for evaluating significant seasonal and hydrological...

Baez-Cazull, Susan Enid

2009-05-15T23:59:59.000Z

232

Hydraulic interactions between fractures and bedding planes in a carbonate aquifer studied by means of experimentally induced water-table fluctuations (Coaraze  

E-Print Network [OSTI]

1 Hydraulic interactions between fractures and bedding planes in a carbonate aquifer studied. Keywords: Karst, hydrogeochemistry, fractured rocks, hydraulic properties, France insu-00376151,version1 high and low permeability regions are controlled by the hydraulic head gradient. Past studies have

Boyer, Edmond

233

Degradation of trichloroethylene by Pseudomonas cepacia G4 and the constitutive mutant strain G4 5223 PR1 in aquifer microcosms.  

Science Journals Connector (OSTI)

...carcinogenic properties (9). Remediation of ground- water aquifers containing TCE...H. 1990. Inefficient remediation of ground-water pollution. Science 250...situ biorestoration as a ground water remediation technique. Ground Water...

M L Krumme; K N Timmis; D F Dwyer

1993-08-01T23:59:59.000Z

234

The delineation of DNAPL in a heterogeneous unconsolidated aquifer using a hydro punch sampler and hydrophobic dye testing procedures  

SciTech Connect (OSTI)

The site is a pharmaceutical facility located in Newark, New Jersey. The facility which has been in operation for approximately 90 years, previously contained a 15,000 gallon underground tank used to store TCE. Upon the tanks removal in the early 1980`s the tank integrity was found to have been compromised. In compliance with the NJDEP Industrial Site Recovery Act, the responsible party was required to locate DNAPL in the aquifer. Due to TCE`s relative density, vertical migration to depths greater than 80 feet has occurred. Lateral migration over distances greater than 500 feet has been documented. Currently, the investigation has focused on the neighboring cemetery, where approximately 20 deep soil borings have been advanced at selected locations downslope of the TCE source area. The soil borings were drilled by mud rotary methods to a depth that was determined in the field to be proximal to the bottom of the heterogeneous unconsolidated aquifer. Continuous split spoon soil sampling for detailed geologic interpretation and field screening utilizing an organic vapor instrument was performed. The Hydro Punch (HP II) sampler was used in the aqueous sampling model to collect a discrete ground water sample from the interface between the aquifer and the till.

Cirilli, J. [Langan Engineering and Environmental Services, Elmwood Park, NJ (United States); DeRose, N. [Langan Engineering and Environmental Services, Doylestown, PA (United States)

1995-09-01T23:59:59.000Z

235

Death Valley Lower Carbonate Aquifer Monitoring Program Wells Down gradient of the Proposed Yucca Mountain Nuclear Waste Repository  

SciTech Connect (OSTI)

Inyo County has participated in oversight activities associated with the Yucca Mountain Nuclear Waste Repository since 1987. The overall goal of these studies are the evaluation of far-field issues related to potential transport, by ground water, or radionuclides into Inyo County, including Death Valley, and the evaluation of a connection between the Lower Carbonate Aquifer (LCA) and the biosphere. Our oversight and completed Cooperative Agreement research, and a number of other investigators research indicate that there is groundwater flow between the alluvial and carbonate aquifers both at Yucca Mountain and in Inyo County. In addition to the potential of radionuclide transport through the LCA, Czarnecki (1997), with the US Geological Survey, research indicate potential radionuclide transport through the shallower Tertiary-age aquifer materials with ultimate discharge into the Franklin Lake Playa in Inyo County. The specific purpose of this Cooperative Agreement drilling program was to acquire geological, subsurface geology, and hydrologic data to: (1) establish the existence of inter-basin flow between the Amargosa Basin and Death Valley Basin; (2) characterize groundwater flow paths in the LCA through Southern Funeral Mountain Range, and (3) Evaluation the hydraulic connection between the Yucca Mountain repository and the major springs in Death Valley through the LCA.

Inyo County

2006-07-26T23:59:59.000Z

236

Interactions of microbes in terrestrial systems Initial studies on terrestrial systems focused on aquifer material that was analyzed for the  

E-Print Network [OSTI]

and effect of heavy metals in salt marsh sediments. Environmental Pollution 149, 79, for example, that heavy metal contamination leads to shifts in microbial evaluated the usefulness of S. patens in phytoremediation of heavy metal

Upchurch, Gary - Department of Biology, Texas State University

237

Uncertainty analyses of CO2 plume expansion subsequent to wellbore CO2 leakage into aquifers  

SciTech Connect (OSTI)

In this study, we apply an uncertainty quantification (UQ) framework to CO2 sequestration problems. In one scenario, we look at the risk of wellbore leakage of CO2 into a shallow unconfined aquifer in an urban area; in another scenario, we study the effects of reservoir heterogeneity on CO2 migration. We combine various sampling approaches (quasi-Monte Carlo, probabilistic collocation, and adaptive sampling) in order to reduce the number of forward calculations while trying to fully explore the input parameter space and quantify the input uncertainty. The CO2 migration is simulated using the PNNL-developed simulator STOMP-CO2e (the water-salt-CO2 module). For computationally demanding simulations with 3D heterogeneity fields, we combined the framework with a scalable version module, eSTOMP, as the forward modeling simulator. We built response curves and response surfaces of model outputs with respect to input parameters, to look at the individual and combined effects, and identify and rank the significance of the input parameters.

Hou, Zhangshuan; Bacon, Diana H.; Engel, David W.; Lin, Guang; Fang, Yilin; Ren, Huiying; Fang, Zhufeng

2014-08-01T23:59:59.000Z

238

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

SciTech Connect (OSTI)

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

239

Renewable Energy Powered Membrane Technology. 1. Development and Characterization of a Photovoltaic Hybrid Membrane System  

Science Journals Connector (OSTI)

Renewable Energy Powered Membrane Technology. 1. Development and Characterization of a Photovoltaic Hybrid Membrane System ... In isolated communities where potable water sources as well as energy grids are limited or nonexistent, treating brackish groundwater aquifers with small-scale desalination systems can be a viable alternative to existing water infrastructures. ...

A.I. Schäfer; A. Broeckmann; B.S. Richards

2006-12-29T23:59:59.000Z

240

A preliminary sub-basin scale evaluation framework of site suitability for onshore aquifer-based CO{sub 2} storage in China  

SciTech Connect (OSTI)

Development of a reliable, broadly applicable framework for the identification and suitability evaluation of potential CO{sub 2} storage sites is essential before large-scale deployment of carbon dioxide capture and geological storage (CCS) can commence. In this study, a sub-basin scale evaluation framework was developed to assess the suitability of potential onshore deep saline aquifers for CO{sub 2} storage in China. The methodology, developed in consultation with experts from the academia and the petroleum industry in China, is based on a multi-criteria analysis (MCA) framework that considers four objectives: (1) storage optimization, in terms of storage capacity and injectivity; (2) risk minimization and storage security; (3) environmental restrictions regarding surface and subsurface use; and (4) economic considerations. The framework is designed to provide insights into both the suitability of potential aquifer storage sites as well as the priority for early deployment of CCS with existing CO{sub 2} sources. Preliminary application of the framework, conducted using GIS-based evaluation tools revealed that 18% of onshore aquifer sites with a combined CO{sub 2} storage capacity of 746 gigatons are considered to exhibit very high suitability, and 11% of onshore aquifer sites with a total capacity of 290 gigatons exhibit very high priority opportunities for implementation. These onshore aquifer sites may provide promising opportunities for early large-scale CCS deployment and contribute to CO{sub 2} mitigation in China for many decades.

Wei, Ning; Li, Xiaochun; Wang, Ying; Dahowski, Robert T.; Davidson, Casie L.; Bromhal Grant S.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

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

SciTech Connect (OSTI)

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

242

The Well-Group Distribution of Groundwater Source Heat Pump System Optimized Research  

E-Print Network [OSTI]

It is the key question that how does the well group arrange for application of GWSHP system. Based on the fact that the water movement is the important factor of heat transfer on aquifer, this paper presents two steps analysis method and analyze...

Liu, Z.; Lu, L.; Yoshida, H.

2006-01-01T23:59:59.000Z

243

Optimal Well-Group Distribution of a Groundwater Source Heat Pump System  

E-Print Network [OSTI]

It is critical to determine how the well group arranges for application of the GWSHP system. Based on the fact that water movement is the most important factor influencing heat transfer in an aquifer, this paper presents a two-step analysis method...

Liu, Z.; Lu, L.; Yoshida, H.

2006-01-01T23:59:59.000Z

244

Hydrothermal system in Southern Grass Valley, Pershing County, Nevada  

SciTech Connect (OSTI)

Southern Grass Valley is a fairly typical extensional basin in the Basin and Range province. Leach Hot Springs, in the southern part of the valley, represents the discharge end of an active hydrothermal flow system with an estimated deep aquifer temperature of 163 to 176/sup 0/C. Results of geologic, hydrologic, geophysical and geochemical investigations are discussed in an attempt to construct an internally consistent model of the system.

Welch, A.H.; Sorey, M.L.; Olmsted, F.H.

1981-01-01T23:59:59.000Z

245

Isotopes in the Hueco Bolson aquifer, Texas (USA) and Chihuahua (Mexico): local and general implications for recharge sources in alluvial basins  

Science Journals Connector (OSTI)

Stable isotope data for the Hueco Bolson aquifer (Texas, USA and Chihuahua, Mexico) distinguish four water types. Two...18O, ?D, ‰) from (?11.9, ?90) to (?10.1, ?82), contrasts with present-day river water (?8.5,...

Christopher J. Eastoe; Barry J. Hibbs; Alfredo Granados Olivas…

2008-06-01T23:59:59.000Z

246

Contaminant Transport in Hydrogeologic Systems  

E-Print Network [OSTI]

objective of this research project was to evaluate the use of low-grade thermal water to measure aquifer dispersivity. However, available thermal models of groundwater aquifers proved difficult to use for evaluating the thermal properties (and dispersivity...

Chin, C.; Redden, D. L.

247

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

SciTech Connect (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

248

Semi-Analytical Solutions of One-Dimensional Multispecies Reactive Transport in a Permeable Reactive Barrier-Aquifer System  

E-Print Network [OSTI]

equations presented by Eykholt [1997], Rabideau et al. [2005], and Park and Zhan [2009] utilize the advection-dispersion equation (ADE) with first-order reaction g4666g2019g4667 as the governing equation(s) but differ primarily in their application... of the boundary conditions. For example, the two equations of Eykholt [1997] were derived using van Genuchten?s [1981] analytical solutions of the ADE with a first-type boundary condition g1829 g46660, g1872g4667 = g1829g3036g3041 at the influent face...

Mieles, John Michael

2012-07-16T23:59:59.000Z

249

Wind power application for low flow irrigation from the Edwards-Trinity aquifer of West Texas  

E-Print Network [OSTI]

for this region. A relationship of flow pumped from a wind powered pumping system was developed to better predict flow rate based on available wind speed and pumping water depth data.The economic analysis of this system showed that if the local utility sold power...

Molla, Saiful Islam

2012-06-07T23:59:59.000Z

250

Field-Derived Hydraulic Properties for Perched-Water Aquifer Wells 299-E33-350 and 299-E33-351, Hanford Site B-Complex Area  

SciTech Connect (OSTI)

During February and March 2014, Pacific Northwest National Laboratory conducted hydraulic (slug) tests at 200-DV-1 Operable Unit wells 299-E33-350 (C8914) and 299-E33-351 (C8915) as part of B-Complex Area Perched-Water characterization activities at the Hanford Site 200-East Area. During the construction/completion phase of each well, two overlapping depth intervals were tested within the unconfined perched-water aquifer contained in the silty-sand subunit of the Cold Creek Unit. The purpose of the slug-test characterization was to provide estimates of transmissivity and hydraulic conductivity for the perched-water aquifer at these selected well locations.

Newcomer, Darrell R.

2014-07-01T23:59:59.000Z

251

Characterization of 200-UP-1 Aquifer Sediments and Results of Sorption-Desorption Tests Using Spiked Uncontaminated Groundwater  

SciTech Connect (OSTI)

Core characterization showed only 4 out of 13 core liner samples were intact samples and that the others were slough material. The intact samples showed typical Ringold Unit E characteristics such as being dominated by gravel and sand. Moderately reducing conditions are inferred in some core from borehole C4299. This reducing condition was caused by the hard tool process used to drill the wells. One core showed significant presence of ferric iron oxide/clay coatings on the gravels. There were no highly contaminated sediments found in the cores from the three new boreholes in UP-1 operable unit, especially for uranium. The presence of slough and ''flour'' caused by hard tooling is a serious challenge to obtaining field relevant sediments for use in geochemical experiments to determine the adsorption-desorption tendencies of redox sensitive elements such as uranium. The adsorption of COCs on intact Ringold Formation sediments and Fe/clay coatings showed that most of the anionic contaminants [Tc(VII), Se(VI), U(VI), Cr(VI), and I(-I)] did not adsorbed very well compared to cationic [Np(V), Sr(II), and Cs(I)] radionuclides. The high hydrous iron oxide content in Fe/clay coatings caused the highest Kd values for U and Np, suggesting these hydrous oxides are the key solid adsorbent in the sediments. Enhanced adsorption behavior for Tc, and Cr and perhaps Se on the sediments was considered an ?artifact? result caused by the induced reducing conditions from the hard tool drilling. Additional U(VI) adsorption Kd studies were performed on Ringold Formation sediments to develop more robust Kd data base for U. The <2 mm size separates of three UP-1 sediments showed a linear U(VI) adsorption isotherm up 1 ppm of total U(VI) concentration in solution. The additional U(VI) Kds obtained from varying carbonate concentration indicated that U(VI) adsorption was strongly influenced by the concentration of carbonate in solution. U(VI) adsorption decreased with increasing concentrations of carbonate up to a point. Then as carbonate and calcium concentrations in the groundwater reach values that exceed the solubility limit for the mineral calcite there is a slight increase in U(VI) Kd likely caused by uranium co-precipitation with the fresh calcite. If remediation of the UP-1 groundwater plume is required, such as pump and treat, it is recommended that the aquifer be treated with chemicals to increase pH and alkalinity and decrease dissolved calcium and magnesium [so that the precipitation of calcite is prevented]. Alternative methods to immobilize the uranium in place might be more effective than trying to remove the uranium by pump and treat. Unfortunately, no aquifer sediments were obtained that contained enough Hanford generated uranium to perform quantitative desorption tests germane to the UP-1 plume remediation issue. Recommended Kd values that should be used for risk predictions for the UP-1 groundwater plume traveling through the lithologies within the aquifer present at the UP-1 (and by proxy ZP-1) operable units were provided. The recommended values Kd values are chosen to include some conservatism (lower values are emphasized from the available range) as is standard risk assessment practice. In general, desorption Kd values for aged contaminated sediments can be larger than Kd values determined in short-term laboratory experiments. To accommodate the potential for desorption hysteresis and other complications, a second suite of uranium desorption Kd values were provided to be used to estimate removal of uranium by pump and treat techniques.

Um, Wooyong; Serne, R JEFFREY.; Bjornstad, Bruce N.; Schaef, Herbert T.; Brown, Christopher F.; Legore, Virginia L.; Geiszler, Keith N.; Baum, Steven R.; Valenta, Michelle M.; Kutnyakov, Igor V.; Vickerman, Tanya S.; Lindberg, Michael J.

2005-11-16T23:59:59.000Z

252

Rock-water interactions of the Madison Aquifer, Mission Canyon Formation, Williston Basin, North Dakota  

E-Print Network [OSTI]

system. Results (i.e., degree of saturation with respect to calcite, dolomite, halite, gypsum, and anhydrite) were integrated with a graphical matrix analysis program to produce color-coded maps that depict potential precipitation-dissolution boundaries...

Spicer, James Frank

2012-06-07T23:59:59.000Z

253

Low-cost geophysical investigations of a paleochannel aquifer in the Eastern Goldfields, Western Australia  

Science Journals Connector (OSTI)

...Smyth and Barrett, 1994). In Western Australia, general paleodrainage systems can be identified by examining...9c shows a horizontal event at 187 Hz, caused by a diesel engine nearby used to pump water from the open-pit mine...

Josef Holzschuh

254

Isotope and trace element evolution of the Naica aquifer (Chihuahua, Mexico) over the past 60,000 yr revealed by speleothems  

Science Journals Connector (OSTI)

Abstract The “espada” speleothems of Cueva de las Espadas (Naica Mine, Chihuahua, Mexico) comprise a high-purity selenite core overlain by successive deposits of calcite, gypsum and aragonite. Gypsum precipitated under water from a hydrothermal solution (~ 58°C) when the water table was above the cave level ca. 57 ka, during the last glaciation, and some intervals during deglaciation and the Holocene. Aragonite was deposited at lower temperatures (~ 26°C) in a perched lake occupying the cave bottom, when the water table dropped below the cave level during brief dry intervals during deglaciation and the early Holocene. The isotopic composition of gypsum water of crystallization shows that the deglaciation–Holocene aquifer water was enriched in deuterium by 12.8–8.7‰ relative to water from the last glaciation. This is attributed to an increased relative moisture contribution from the Gulf of Mexico during deglaciation and the Holocene compared to the last glaciation. This indicates that drier conditions occurred in the Naica area during the Holocene than around 57 ka. Furthermore, trace element analyses of gypsum served to deduce the circulation regime of the Naica aquifer during the past 60,000 yr, and also suggest that higher aquifer recharge occurred during the last glaciation.

Fernando Gázquez; José-María Calaforra; Heather Stoll; Laura Sanna; Paolo Forti; Stein-Erik Lauritzen; Antonio Delgado; Fernando Rull; Jesús Martínez-Frías

2013-01-01T23:59:59.000Z

255

Environmental Controls on the Activity of Aquifer Microbial Communities in the 300 Area of the Hanford Site  

SciTech Connect (OSTI)

Aquifer microbes in the 300 Area of the Hanford Site in southeastern Washington State, USA are periodically exposed to U(VI) concentrations that can range up to 10 ?M in small sediment fractures. Assays of 35 H-leucine incorporation indicated that both sediment-associated and planktonic microbes were metabolically active, and that organic C was growth-limiting in the sediments. Although bacteria suspended in native groundwater retained high activity when exposed to 100 ?M U(VI), they were inhibited by U(VI) < 1 ?M in synthetic groundwater that lacked added bicarbonate. Chemical speciation modeling suggested that positively-charged species and particularly (UO2)3(OH)5+ rose in concentration as more U(VI) was added to synthetic groundwater, but that carbonate complexes dominated U(VI) speciation in natural groundwater. U toxicity was relieved when increasing amounts of bicarbonate were added to synthetic groundwater containing 4.5 ?M U(VI). Pertechnetate, an oxyanion that is another contaminant of concern at the Hanford Site, was not toxic to groundwater microbes at concentrations up to 125 ?M.

Konopka, Allan; Plymale, Andrew E.; Carvajal, Denny A.; Lin, Xueju; McKinley, James P.

2013-11-06T23:59:59.000Z

256

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

SciTech Connect (OSTI)

There is increasing interest in harnessing the functional capacities of indigenous microbial communities to transform and remediate a wide range of environmental contaminants. Information about which community members respond to stimulation can guide the interpretation and development of remediation approaches. To comprehensively determine community membership and abundance patterns among a suite of samples associated with uranium bioremediation experiments we employed a high?density microarray (PhyloChip). Samples were unstimulated, naturally reducing, or collected during Fe(III) (early) and sulfate reduction (late biostimulation) from an acetate re?amended/amended aquifer in Rifle, Colorado, and from laboratory experiments using field?collected materials. Deep community sampling with PhyloChip identified hundreds?to?thousands of operational taxonomic units (OTUs) present during amendment, and revealed close similarity among highly enriched taxa from drill?core and groundwater well?deployed column sediment. Overall, phylogenetic data suggested stimulated community membership was most affected by a carryover effect between annual stimulation events. Nevertheless, OTUs within the Fe(III)? and sulfate?reducing lineages, Desulfuromonadales and Desulfobacterales, were repeatedly stimulated. Less consistent, co?enriched taxa represented additional lineages associated with Fe(III) and sulfate reduction (for example, Desulfovibrionales; Syntrophobacterales; Peptococcaceae) and autotrophic sulfur oxidation (Sulfurovum; Campylobacterales). These data imply complex membership among highly stimulated taxa, and by inference biogeochemical responses to acetate, a non?fermentable substrate.

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

2012-04-13T23:59:59.000Z

257

ECO2N - A New TOUGH2 Fluid Property Module for Studies of CO2Storage in Saline Aquifers  

SciTech Connect (OSTI)

ECO2N is a fluid property module for the TOUGH2 simulator (Version 2.0) that was designed for applications to geologic storage of CO{sub 2} in saline aquifers. It includes a comprehensive description of the thermodynamics and thermophysical properties of H{sub 2}O-NaCl-CO{sub 2} mixtures, that reproduces fluid properties largely within experimental error for the temperature, pressure and salinity conditions of interest(10 C {le} T {le} 110 C; P {le} 600 bar; salinity up to full halite saturation). Flow processes can be modeled isothermally or non-isothermally, and phase conditions represented may include a single (aqueous or CO{sub 2}-rich) phase, as well as two-phase mixtures. Fluid phases may appear or disappear in the course of a simulation, and solid salt may precipitate or dissolve. ECO2N can model super- as well as sub-critical conditions, but it does not make a distinction between liquid and gaseous CO{sub 2}. This paper highlights significant features of ECO2N, and presents illustrative applications.

Pruess, Karsten; Spycher, Nicholas

2006-04-17T23:59:59.000Z

258

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

SciTech Connect (OSTI)

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

259

Integrated investigation of seawater intrusion around oil storage caverns in a coastal fractured aquifer using hydrogeochemical and isotopic data  

Science Journals Connector (OSTI)

Summary Seawater intrusion can be activated by the construction of underground caverns which act as groundwater sinks near a coastal area. In an environment complicated with such artificial structures, seawater intrusion is not simple and thus needs to be evaluated by means of multiple analytical approaches. This study uses geochemical and isotopic indicators to assess the characteristics of salinized seepage into an underground oil storage cavern in Yeosu, Korea. Cl?/Br? ratios, principal component analysis (PCA) of chemical data, and stable isotope data were used to determine the origin and the extent of salinization. Indications of seawater intrusion into the cavern through fractured bedrocks were observed; however, it was highly probable that another source may have contributed to the observed salinity. The PCA results revealed that the seepage water chemistry was predominantly affected both by seawater mixing and cement material dissolution. The maximum seawater mixing ratio in the seepage water was estimated on the basis of the Cl?–Br? mixing ratio and the Cl?–?18O relation, with the results showing considerable variation ranging from less than 1% to as high as 14%, depending on the cavern location. The spatial variations in the chemical characteristics and in mixing ratios are believed to have resulted from the hydrogeological heterogeneity of the study site, as caused by both fractured aquifer and the cavern facilities.

Jeong-Won Lim; Eunhee Lee; Hee Sun Moon; Kang-Kun Lee

2013-01-01T23:59:59.000Z

260

Biofouling of groundwater distribution systems by Thiothrix spp.  

SciTech Connect (OSTI)

Thiothrix spp., sulfide oxidizing filamentous bacteria, were found to be the main bacterial component of aquatic biofilms causing biofouling in selected municipal water storage tanks, private wells, and drip irrigation systems in Florida. The water originated from the upper Floridan aquifer and associated aquifers in Central and North Florida. Samples were examined where visible biofilms had a white, slimy, filamentous appearance indicative of Thiothrix spp. The detection of Thiothrix spp. was confirmed by enzyme-liked immunosorbent assay (ELISA). These observations confirm that these bacteria and associated extracellular material play an important role in formation of biofilms, which in turn may induce physical changes leading to significant biofouling. These studies suggest that Thiothrix spp.-associated biofouling occurs at an interface where reduced sulfide-containing water contacts aerated water and a surface or substrate is available for attachment.

Brigmon, R.L. [Westinghouse Savannah River Co., Aiken, SC (United States); Martin, H.W. [National Spleological Society, Greenville, DE (United States); Aldrich, H.C. [Florida Univ., Gainesville, FL (United States). Dept. of Microbiology & Cell Science

1995-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Market-based Groundwater Allocation: Considerations for Arizona from the Texas Edwards Aquifer Cap  

E-Print Network [OSTI]

challenge, which is emerging conflict between urban and rural demands, "between those who have water and Trade System Zachary P. Sugg Ph.D. Student University of Arizona School of Geography and Development: The University of Arizona, Technology and Research Initiative Fund 2012/2013, Water Sustainability Graduate

Fay, Noah

262

Fluid transfers in a carbonate-gaseous aquifer through the local tectonic and geodynamic history  

Science Journals Connector (OSTI)

...to the Nestla© Waters Company for financial support and to Daniel Andra© for his detailed descriptions of the local karst systems. We would like to thank the two reviewers for...southern France. Tectonophysics 226:15a 35. a µ Jost A., Violette S., Macquar J.-C., Dromart G. (2004) Fluid palaeocirculation...

Véronique Durand; Véronique Léonardi; Benoît Deffontaines; Jean-Claude Macquar

263

Characterization of groundwater flow and transport in the General Separations Area, Savannah River Plant: Effect of groundwater withdrawals on the Tuscaloosa-Congaree aquifer head reversal in H Area. Final report  

SciTech Connect (OSTI)

The Savannah River Plant (SRP) has maintained a number of sites used for land disposal of various waste materials. The General Separations Area at SRP, located between the Upper Three Runs and Four Mile Creeks, has served as an active area for waste storage for about thirty years. The Tuscaloosa aquifer, which lies beneath the General Separations Area, is a water source for SRP and the surrounding area. The isolation of the Tuscaloosa aquifer has been maintained by an upward hydraulic gradient from the Tuscaloosa aquifer to the overlying Congaree aquifer. This upward gradient is referred to as a hydraulic head reversal in the General Separations Area, i.e., hydraulic heads in the upper Tuscaloosa are higher than hydraulic heads in the Congaree. This head reversal has declined in recent years due to increased groundwater pumping in the upper and lower Tuscaloosa formations. The objective of this investigation is to assess the effects of pumping within the General Separations Area on the Congaree/upper Tuscaloosa head reversal. Methods of maintaining future Tuscaloosa aquifer isolation through the optimization of groundwater withdrawal location and rate were studied. Steady-state and transient groundwater flow models were used to characterize past and potential future groundwater conditions. Future groundwater conditions were simulated for a variety of pumping scenarios.

Spalding, C.P.; Duffield, G.M.; Shaw, S.T. [GeoTrans, Inc., Herndon, VA (United States)

1988-01-01T23:59:59.000Z

264

Characterization of groundwater flow and transport in the General Separations Area, Savannah River Plant: Effect of groundwater withdrawals on the Tuscaloosa-Congaree aquifer head reversal in H Area  

SciTech Connect (OSTI)

The Savannah River Plant (SRP) has maintained a number of sites used for land disposal of various waste materials. The General Separations Area at SRP, located between the Upper Three Runs and Four Mile Creeks, has served as an active area for waste storage for about thirty years. The Tuscaloosa aquifer, which lies beneath the General Separations Area, is a water source for SRP and the surrounding area. The isolation of the Tuscaloosa aquifer has been maintained by an upward hydraulic gradient from the Tuscaloosa aquifer to the overlying Congaree aquifer. This upward gradient is referred to as a hydraulic head reversal in the General Separations Area, i.e., hydraulic heads in the upper Tuscaloosa are higher than hydraulic heads in the Congaree. This head reversal has declined in recent years due to increased groundwater pumping in the upper and lower Tuscaloosa formations. The objective of this investigation is to assess the effects of pumping within the General Separations Area on the Congaree/upper Tuscaloosa head reversal. Methods of maintaining future Tuscaloosa aquifer isolation through the optimization of groundwater withdrawal location and rate were studied. Steady-state and transient groundwater flow models were used to characterize past and potential future groundwater conditions. Future groundwater conditions were simulated for a variety of pumping scenarios.

Spalding, C.P.; Duffield, G.M.; Shaw, S.T. (GeoTrans, Inc., Herndon, VA (United States))

1988-01-01T23:59:59.000Z

265

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

SciTech Connect (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

266

Approaches to Quantify Potential Contaminant Transport in the Lower Carbonate Aquifer from Underground Nuclear Testing at Yucca Flat, Nevada National Security Site, Nye County, Nevada - 12434  

SciTech Connect (OSTI)

Quantitative modeling of the potential for contaminant transport from sources associated with underground nuclear testing at Yucca Flat is an important part of the strategy to develop closure plans for the residual contamination. At Yucca Flat, the most significant groundwater resource that could potentially be impacted is the Lower Carbonate Aquifer (LCA), a regionally extensive aquifer that supplies a significant portion of the water demand at the Nevada National Security Site, formerly the Nevada Test Site. Developing and testing reasonable models of groundwater flow in this aquifer is an important precursor to performing subsequent contaminant transport modeling used to forecast contaminant boundaries at Yucca Flat that are used to identify potential use restriction and regulatory boundaries. A model of groundwater flow in the LCA at Yucca Flat has been developed. Uncertainty in this model, as well as other transport and source uncertainties, is being evaluated as part of the Underground Testing Area closure process. Several alternative flow models of the LCA in the Yucca Flat/Climax Mine CAU have been developed. These flow models are used in conjunction with contaminant transport models and source term models and models of contaminant transport from underground nuclear tests conducted in the overlying unsaturated and saturated alluvial and volcanic tuff rocks to evaluate possible contaminant migration in the LCA for the next 1,000 years. Assuming the flow and transport models are found adequate by NNSA/NSO and NDEP, the models will undergo a peer review. If the model is approved by NNSA/NSO and NDEP, it will be used to identify use restriction and regulatory boundaries at the start of the Corrective Action Decision Document Corrective Action Plan (CADD/CAP) phase of the Corrective Action Strategy. These initial boundaries may be revised at the time of the Closure Report phase of the Corrective Action Strategy. (authors)

Andrews, Robert W.; Birdie, Tiraz [Navarro-INTERA LLC, Las Vegas, Nevada 89030 (United States); Wilborn, Bill; Mukhopadhyay, Bimal [National Nuclear Security Administration/Nevada Site Office, Las Vegas, Nevada 89030 (United States)

2012-07-01T23:59:59.000Z

267

Investigation of the Wetting Behavior of Coal Tar in Three Phase Systems and Its Modification by Poloxamine Block Copolymeric Surfactants  

Science Journals Connector (OSTI)

These include soil washing (15, 16), ex situ facilitated desorption using aqueous surfactant solutions on excavated soils (17?19), and in situ soil flushing (1, 2, 20). ... A review, with 78 refs., on surfactants in-situ aquifer remediation, including natural surface-active chems.; remediation applications, including solubilization, mobilization, the HLB (hydrophilic/lipophilic balance) method, and Winsor systems and parameter diagrams; and surfactant system stability, including sorption and pptn. of surfactants, surfactant losses into trapped residual phases, chromatog. ...

Jingfeng Dong; Babur Chowdhry; Stephen Leharne

2003-12-05T23:59:59.000Z

268

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

SciTech Connect (OSTI)

Nutrient limitation is an environmental stress that may reduce the effectiveness of bioremediation strategies, especially when the contaminants are organic compounds or when organic compounds are added to promote microbial activities such as metal reduction. Genes indicative of phosphate-limitation were identified via microarray analysis of chemostat cultures of Geobacter sulfureducens. This analysis revealed that genes in the pst-pho operon, which is associated with a high affinity phosphate uptake system in other microorganisms, had significantly higher transcript abundance under phosphate-limiting conditions, with the genes pstB and phoU the most up-regulated. Quantitative PCR analysis of pstB and phoU transcript levels in G. sulfurreducens grown in chemostats demonstrated that the expression of these genes increased when phosphate was removed from the culture medium. Transcripts of pstB and phoU within the subsurface Geobacter species predominating during an in situ uranium bioremediation field experiment were more abundant than in chemostat cultures of G. sulfurreducens that were not limited for phosphate. Addition of phosphate to incubations of subsurface sediments did not stimulate dissimilatory metal reduction. The added phosphate was rapidly adsorbed onto the sediments. The results demonstrate that Geobacter species can effectively reduce U(VI) even when experiencing suboptimal phosphate concentrations and that increasing phosphate availability with phosphate additions is difficult to achieve due to the high reactivity of this compound. This transcript-based approach developed for diagnosing phosphate limitation should be applicable to assessing the potential need for additional phosphate in other bioremediation processes.

N'Guessan, L.A.; Elifantz, H.; Nevin, K.P.; Mouser, P.J.; Methe, B.; Woodard, T. L.; Manley, K.; Williams, K. H.; Wilkins, M. J.; Larsen, J.T.; Long, P. E.; Lovley, D. R.

2009-09-01T23:59:59.000Z

269

EXPERIMENTAL DESIGN APPLICATIONS FOR MODELING AND ASSESSING CARBON DIOXIDE SEQUESTRATION IN SALINE AQUIFERS  

SciTech Connect (OSTI)

This project was a computer modeling effort to couple reservoir simulation and ED/RSM using Sensitivity Analysis, Uncertainty Analysis, and Optimization Methods, to assess geologic, geochemical, geomechanical, and rock-fluid effects and factors on CO2 injectivity, capacity, and plume migration. The project objective was to develop proxy models to simplify the highly complex coupled geochemical and geomechanical models in the utilization and storage of CO2 in the subsurface. The goals were to investigate and prove the feasibility of the ED/RSM processes and engineering development, and bridge the gaps regarding the uncertainty and unknowns of the many geochemical and geomechanical interacting parameters in the development and operation of anthropogenic CO2 sequestration and storage sites. The bottleneck in this workflow is the high computational effort of reactive transport simulation models and large number of input variables to optimize with ED/RSM techniques. The project was not to develop the reactive transport, geomechanical, or ED/RSM software, but was to use what was commercially and/or publically available as a proof of concept to generate proxy or surrogate models. A detailed geologic and petrographic mineral assemblage and geologic structure of the doubly plunging anticline was defined using the USDOE RMOTC formations of interest data (e.g., Lower Sundance, Crow Mountain, Alcova Limestone, and Red Peak). The assemblage of 23 minerals was primarily developed from literature data and petrophysical (well log) analysis. The assemblage and structure was input into a commercial reactive transport simulator to predict the effects of CO2 injection and complex reactions with the reservoir rock. Significant impediments were encountered during the execution phase of the project. The only known commercial reactive transport simulator was incapable of simulating complex geochemistry modeled in this project. Significant effort and project funding was expended to determine the limitations of both the commercial simulator and the Lawrence Berkeley National Laboratory (LBNL) R&D simulator, TOUGHREACT available to the project. A simplified layer cake model approximating the volume of the RMOTC targeted reservoirs was defined with 1-3 minerals eventually modeled with limited success. Modeling reactive transport in porous media requires significant computational power. In this project, up to 24 processors were used to model a limited mineral set of 1-3 minerals. In addition, geomechanical aspects of injecting CO2 into closed, semi-open, and open systems in various well completion methods was simulated. Enhanced Oil Recovery (EOR) as a storage method was not modeled. A robust and stable simulation dataset or base case was developed and used to create a master dataset with embedded instructions for input to the ED/RSM software. Little success was achieved toward the objective of the project using the commercial simulator or the LBNL simulator versions available during the time of this project. Several hundred realizations were run with the commercial simulator and ED/RSM software, most having convergence problems and terminating prematurely. A proxy model for full field CO2 injection sequestration utilization and storage was not capable of being developed with software available for this project. Though the chemistry is reasonably known and understood, based on the amount of effort and huge computational time required, predicting CO2 sequestration storage capacity in geologic formations to within the program goals of ±30% proved unsuccessful.

Rogers, John

2014-08-31T23:59:59.000Z

270

Effect of availability on multi-period planning of subsea oil and gas production systems  

E-Print Network [OSTI]

2.2.5.4 Fetkovich............................................................ 22 2.3 Network System (Surface Facilities)........................................ 24 2.4 Principal Production Constraints... of an aquifer, find out the water influx and predict the reservoir behavior as well as the reservoir pressure profile5,8. The simplest form to express the material balance expression on volumetric basis was stated in 1936 by Schilthuis and can be summarize...

Ruiz Vasquez, Karla Liliana

2009-05-15T23:59:59.000Z

271

U.S. Department of Energy: Update Conference- 2010 Energy Storage Systems Program ESS Washington DC- November 2, 2010  

Broader source: Energy.gov (indexed) [DOE]

Energy: Update Conference-2010 Energy: Update Conference-2010 Energy Storage Systems Program ESS Washington DC- November 2, 2010 Iowa Stored Energy Park (ISEP) By: Kent Holst: ISEPA- Development Director Michael King, R.G., C.E.G., C.HG.: The Hydrodynamics Group, LLC Special thanks for support from: Georgianne Huff, Sandia National Laboratories, Albuquerque, NM Dr. Imre Gyuk, DOE, Energy Storage Systems, Program Manager Funded in part by the Energy Storage Systems Program of the U.S. Department Of Energy through Sandia National Laboratories Goal: Prove Aquifer Storage for CAES DOE funding started in 2005 Activities funded: * Project Management * Marketing & Public Relations * Seismic Survey & Analysis * Computer Modeling * Test Wells * Economic Analysis ISEP CAES Project Aquifer Feasibility Analysis

272

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

SciTech Connect (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

273

AQUIFER THERMAL ENERGY STORAGE  

E-Print Network [OSTI]

American Institute of Physics Handbook, 1972. Gray, D.E. ,and American Institute of Physics Handbook (1972). The meshAmerican Institute of Physics Handbook design for simulation

Tsang, C.-F.

2011-01-01T23:59:59.000Z

274

Quantitative analysis of existing conditions and production strategies for the Baca geothermal system, New Mexico  

SciTech Connect (OSTI)

The Baca geothermal reservoir and adjacent aquifers in the Jemez Mountains of New Mexico comprise an integrated hydrogeologic system. Analysis of the geothermal reservoir either under natural conditions or subject to proposed development should account for the mass (water) and energy (heat) balances of adjacent aquifers as well as the reservoir itself. A three-dimensional model based on finite difference approximation is applied to this integrated system. The model simulates heat transport associated with the flow of steam and water through an equivalent porous medium. The Baca geothermal reservoir is dominated by flow in fractures and distinct strata, but at the scale of application the equivalent porous media concept is appropriate. The geothermal reservoir and adjacent aquifers are simulated under both natural conditions and proposed production strategies. Simulation of natural conditions compares favorably with observed pressure, temperature, and thermal discharge data. The history matching simulations show that the results used for comparison are most sensitive to vertical permeability and the area of an assumed high-permeability zone connecting the reservoir to a deep hydrothermal source. Simulations using proposed production strategies and optimistic estimates of certain hydrologic parameters and reservoir extent indicate that a 50-MW power plant could be maintained for a period greater than 30 years. This production, however, will result in significant decreases in the total water discharge to the Jemez River.

Faust, C.R.; Mercer, J.W.; Thomas, S.D.; Balleau, W.A.

1984-05-01T23:59:59.000Z

275

Heat Transport in Groundwater Systems--Finite Element Model  

E-Print Network [OSTI]

into groundwater aquifers for long term energy storage. Analytical solutions are available that predict water temperatures as hot water is injected into a groundwater aquifer, but little field and laboratory data are available to verify these models. The objectives...

Grubaugh, E. K.; Reddell, D. L.

276

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

277

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

Broader source: Energy.gov (indexed) [DOE]

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

278

Geologic Controls of Hydraulic Conductivity in the Snake River Plain Aquifer At and Near the Idaho National Engineering and Environmental Laboratory, Idaho  

SciTech Connect (OSTI)

The effective hydraulic conductivity of basalt and interbedded sediment that compose the Snake River Plain aquifer at and near the Idaho National Engineering and Environmental Laboratory (INEEL) ranges from about 1.0x10 -2 to 3.2x10 4 feet per day (ft/d). This six-order-of-magnitude range of hydraulic conductivity was estimated from single-well aquifer tests in 114 wells, and is attributed mainly to the physical characteristics and distribution of basalt flows and dikes. Hydraulic conductivity is greatest in thin pahoehoe flows and near-vent volcanic deposits. Hydraulic conductivity is least in flows and deposits cut by dikes. Estimates of hydraulic conductivity at and near the INEEL are similar to those measured in similar volcanic settings in Hawaii. The largest variety of rock types and the greatest range of hydraulic conductivity are in volcanic rift zones, which are characterized by numerous aligned volcanic vents and fissures related to underlying dikes. Three broad categories of hydraulic conductivity corresponding to six general types of geologic controls can be inferred from the distribution of wells and vent corridors. Hydraulic conductivity of basalt flows probably is increased by localized fissures and coarse mixtures of interbedded sediment, scoria, and basalt rubble. Hydraulic conductivity of basalt flows is decreased locally by abundant alteration minerals of probable hydrothermal origin. Hydraulic conductivity varies as much as six orders of magnitude in a single vent corridor and varies from three to five orders of magnitude within distances of 500 to 1,000 feet. Abrupt changes in hydraulic conductivity over short distances suggest the presence of preferential pathways and local barriers that may greatly affect the movement of ground water and the dispersion of radioactive and chemical wastes downgradient from points of waste disposal.

S. R. Anderson; M. A. Kuntz; L. C. Davis

1999-02-01T23:59:59.000Z

279

Machel, H.G., Buschkuehle, B.E. and Michael, K., 2001, Squeegee flow in Devonian carbonate aquifers in Alberta, Canada. In: Cidu, R. (ed.), Water-Rock Interaction, Vol. 1. Proceedings of the Tenth International Symposium on Water-Rock-Interaction WRI-  

E-Print Network [OSTI]

in thickness. Across much of the basin the four Devonian aquifers, which contain oil, sweet and sour gas reservoirs, are interbedded with marly and evaporitic aquitards, and are confined by tight evaporites

Machel, Hans

280

The relationship of the Yucca Mountain repository block to the regional ground-water system: A geochemical model  

SciTech Connect (OSTI)

Yucca Mountain, in southern Nevada, is being studied by the Department of Energy and the State of Nevada as the site of a high-level nuclear waste repository. Geochemical and isotopic modeling were used in this study to define the relationship of the volcanic tuff aquifers and aquitards to the underlying regional carbonate ground-water system. The chemical evolution of a ground water as it passes through a hypothetical tuffaceous aquifer was developed using computer models PHREEQE, WATEQDR and BALANCE. The tuffaceous system was divided into five parts, with specific mineralogies, reaction steps and temperatures. The initial solution was an analysis of a soil water from Rainier Mesa. The ending solution in each part became the initial solution in the next part. Minerals consisted of zeolites, smectites, authigenic feldspars and quartz polymorphs from described diagentic mineral zones. Reaction steps were ion exchange with zeolites. The solution from the final zone, Part V, was chosen as most representative, in terms of pH, element molalities and mineral solubilities, of tuffaceous water. This hypothetical volcanic water from Part V was mixed with water from the regional carbonate aquifer, and the results compared to analyses of Yucca Mountain wells. Mixing and modeling attempts were conducted on wells in which studies indicated upward flow.

Matuska, N.A.; Hess, J.W. [Nevada Univ., Reno, NV (United States). Water Resources Center

1989-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

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  

SciTech Connect (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

282

Formation dry-out from CO2 injection into saline aquifers: Part 1, Effects of solids precipitation and their mitigation  

E-Print Network [OSTI]

and W. Müller. Modelling of Halite Formation in Natural Gasgas storage systems, where halite (NaCl) is the most common600 bar, and salinity to full halite saturation (Pruess and

Pruess, Karsten

2009-01-01T23:59:59.000Z

283

2009-2010 Special Projects Boellstorff: A Southern Region Well Owner Network to Safeguard Private Well and Aquifer Integrity  

E-Print Network [OSTI]

, improper well construction techniques, abandoned wells, improperly sited and functioning on-site wastewater treatment systems, and changes in land use. The aim of the proposed Southern Region Well Owner Network integrity. The SRWON will improve rural and rural-urban interface environmental management by providing

284

GeoChip-based analysis of functional microbial communities during the reoxidation of a bioreduced uranium-contaminated aquifer  

SciTech Connect (OSTI)

A pilot-scale system was established for in situ biostimulation of U(VI) reduction by ethanol addition at the US Department of Energy's (DOE's) Field Research Center (Oak Ridge, TN). After achieving U(VI) reduction, stability of the bioreduced U(IV) was evaluated under conditions of (i) resting (no ethanol injection), (ii) reoxidation by introducing dissolved oxygen (DO), and (iii) reinjection of ethanol. GeoChip, a functional gene array with probes for N, S and C cycling, metal resistance and contaminant degradation genes, was used for monitoring groundwater microbial communities. High diversity of all major functional groups was observed during all experimental phases. The microbial community was extremely responsive to ethanol, showing a substantial change in community structure with increased gene number and diversity after ethanol injections resumed. While gene numbers showed considerable variations, the relative abundance (i.e. percentage of each gene category) of most gene groups changed little. During the reoxidation period, U(VI) increased, suggesting reoxidation of reduced U(IV). However, when introduction of DO was stopped, U(VI) reduction resumed and returned to pre-reoxidation levels. These findings suggest that the community in this system can be stimulated and that the ability to reduce U(VI) can be maintained by the addition of electron donors. This biostimulation approach may potentially offer an effective means for the bioremediation of U(VI)-contaminated sites.

Van Nostrand, Joy [University of Oklahoma, Norman; Wu, Weimin [ORNL; Wu, Liyou [University of Oklahoma, Norman; Deng, Ye [University of Oklahoma; Carley, Jack M [ORNL; Carroll, Sue L [ORNL; He, Zhili [University of Oklahoma; Gu, Baohua [ORNL; Luo, Jian [ORNL; Criddle, Craig [ORNL; Watson, David B [ORNL; Jardine, Philip M [ORNL; Marsh, Terence [Michigan State University, East Lansing; Tiedje, James [Michigan State University, East Lansing; Hazen, T. C. [Lawrence Berkeley National Laboratory (LBNL); Zhou, Jizhong [University of Oklahoma, Norman

2009-01-01T23:59:59.000Z

285

Development of a data base system to aid the WDEQ in the evaluation of surface mining permit and renewal applications  

SciTech Connect (OSTI)

Western Research Institute (WRI) is developing a data management system for the Wyoming Department of Environmental Quality (WDEQ), Land Quality Division (LQD), under a cooperative agreement with the United States Department of Interior (DOI), Office of Surface Mining (OSM). The management system is being developed primarily to store hydrologic data, including spring and stream flow, groundwater level, ground and surface water quality, and aquifer test data. The data are used by the WDEQ to assess the probable hydrologic consequences and the cumulative hydrologic impact of surface coal mining operations. The majority of the data was collected for the mining companies for the purpose of completing permit or renewal application requirements.

Sanderson, W.B. [Western Research Institute, Laramie, WY (United States)

1990-12-31T23:59:59.000Z

286

Hydrologic System Response to Environmental Change: Three Case Studies in California  

E-Print Network [OSTI]

seawater intrusion, and land subsidence as a result of aquifer consolidation, leading to a permanent loss of groundwater storage.

Russo, Tess A.

2012-01-01T23:59:59.000Z

287

Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies  

SciTech Connect (OSTI)

A speciation-solubility geochemical model, WATEQ2, was used to analyze geographically-diverse, ground-water samples from the aquifers of the Columbia Plateau basalts in eastern Washington. The ground-water samples compute to be at equilibrium with calcite, which provides both a solubility control for dissolved calcium and a pH buffer. Amorphic ferric hydroxide, Fe(OH)/sub 3/(A), is at saturation or modestly oversaturated in the few water samples with measured redox potentials. Most of the ground-water samples compute to be at equilibrium with amorphic silica (glass) and wairakite, a zeolite, and are saturated to oversaturated with respect to allophane, an amorphic aluminosilicate. The water samples are saturated to undersaturated with halloysite, a clay, and are variably oversaturated with regard to other secondary clay minerals. Equilibrium between the ground water and amorphic silica presumably results from the dissolution of the glassy matrix of the basalt. The oversaturation of the clay minerals other than halloysite indicates that their rate of formation lags the dissolution rate of the basaltic glass. The modeling results indicate that metastable amorphic solids limit the concentration of dissolved silicon and suggest the same possibility for aluminum and iron, and that the processes of dissolution of basaltic glass and formation of metastable secondary minerals are continuing even though the basalts are of Miocene age. The computed solubility relations are found to agree with the known assemblages of alteration minerals in the basalt fractures and vesicles. Because the chemical reactivity of the bedrock will influence the transport of solutes in ground water, the observed solubility equilibria are important factors with regard to chemical-retention processes associated with the possible migration of nuclear waste stored in the earth's crust.

Deutsch, W.J.; Jenne, E.A.; Krupka, K.M.

1982-08-01T23:59:59.000Z

288

Numerical Modeling Studies of The Dissolution-Diffusion-Convection ProcessDuring CO2 Storage in Saline Aquifers  

SciTech Connect (OSTI)

For purposes of geologic storage, CO2 would be injected into saline formations at supercritical temperature and pressure conditions, and would form a separate phase that is immiscible with the aqueous phase (brine). At typical subsurface temperature and pressure conditions, supercritical CO2 (scCO2) has lower density than the aqueous phase and would experience an upward buoyancy force. Accordingly, the CO2 is expected to accumulate beneath the caprock at the top of the permeable interval, and could escape from the storage formation wherever (sub-)vertical pathways are available, such as fractures or faults through the caprock, or improperly abandoned wells. Over time, an increasing fraction of CO2 may dissolve in the aqueous phase, and eventually some of the aqueous CO2 may react with rock minerals to form poorly soluble carbonates. Dissolution into the aqueous phase and eventual sequestration as carbonates are highly desirable processes as they would increase permanence and security of storage. Dissolution of CO2 will establish phase equilibrium locally between the overlying CO2 plume and the aqueous phase beneath. If the aqueous phase were immobile, CO2 dissolution would be limited by the rate at which molecular diffusion can remove dissolved CO2 from the interface between CO2-rich and aqueous phases. This is a slow process. However, dissolution of CO2 is accompanied by a small increase in the density of the aqueous phase, creating a negative buoyancy force that can give rise to downward convection of CO2-rich brine, which in turn can greatly accelerate CO2 dissolution. This study explores the process of dissolution-diffusion-convection (DDC), using high-resolution numerical simulation. We find that geometric features of convection patterns are very sensitive to small changes in problem specifications, reflecting self-enhancing feedbacks and the chaotic nature of the process. Total CO2 dissolution rates on the other hand are found to be quite robust against modest changes in problem parameters, and are essentially constant as long as no dissolved CO2 reaches the lower boundary of the system.

Pruess, Karsten; Zhang, Keni

2008-11-17T23:59:59.000Z

289

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re- injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the fourth quarter of Budget Period II.

Steve Horner

2004-10-29T23:59:59.000Z

290

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the eleventh quarter of Budget Period I.

Steve Horner; Iraj Ershaghi

2003-05-15T23:59:59.000Z

291

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the tenth quarter of Budget Period I.

Steve Horner; Iraj Ershaghi

2003-01-31T23:59:59.000Z

292

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the twelfth quarter of Budget Period I.

Steve Horner; Iraj Ershaghi

2003-07-30T23:59:59.000Z

293

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the fifth quarter of Budget Period II.

Steve Horner

2005-01-31T23:59:59.000Z

294

An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery from the Complex Monterey Reservoir of South Ellwood Field, Offshore California  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the ninth quarter of Budget Period II.

Steve Horner

2006-01-31T23:59:59.000Z

295

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the seventh quarter of Budget Period II.

Steve Horner

2005-08-01T23:59:59.000Z

296

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the final quarter of Budget Period I.

Steve Horner; Iraj Ershaghi

2003-10-31T23:59:59.000Z

297

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the third quarter of Budget Period II.

Steve Horner

2004-07-30T23:59:59.000Z

298

AN ADVANCED FRACTURE CHARACTERIZATION AND WELL PATH NAVIGATION SYSTEM FOR EFFECTIVE RE-DEVELOPMENT AND ENHANCEMENT OF ULTIMATE RECOVERY FROM THE COMPLEX MONTEREY RESERVOIR OF SOUTH ELLWOOD FIELD, OFFSHORE CALIFORNIA  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intends to investigate, map and characterize field fracture patterns and the reservoir conduit system. State of the art borehole imaging technologies including FMI, dipole sonic and cross-well seismic, interference tests and production logs will be employed to characterize fractures and micro faults. These data along with the existing database will be used for construction of a novel geologic model of the fracture network. Development of an innovative fracture network reservoir simulator is proposed to monitor and manage the aquifer's role in pressure maintenance and water production. The new fracture simulation model will be used for both planning optimal paths for new wells and improving ultimate recovery. In the second phase of this project, the model will be used for the design of a pilot program for downhole water re-injection into the aquifer simultaneously with oil production. Downhole water separation units attached to electric submersible pumps will be used to minimize surface fluid handling thereby improving recoveries per well and field economics while maintaining aquifer support. In cooperation with the DOE, results of the field studies as well as the new models developed and the fracture database will be shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during the second quarter of Budget Period II.

Steve Horner

2004-04-29T23:59:59.000Z

299

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

300

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

Note: This page contains sample records for the topic "llucmajor aquifer system" 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.


301

Tomographic Characterization of Aquifer Heterogeneity  

E-Print Network [OSTI]

that extend the 3D homogenous spherical radial equation to the heterogeneous case. A numerical model was used to check the heterogeneous extension for accuracy. High quality zero-offset profile ray paths (ZOP) were used to determine hydraulic conductivity, K...

Lyle, Shane

2011-05-31T23:59:59.000Z

302

AQUIFER CHARACTERIZATION JOHN S. BRIDGE  

E-Print Network [OSTI]

under DOE Idaho Operations Office Contract DE-AC07-99ID13727 Institute of Environmental Science,theSocietyisdedicatedtothedissemination of scientific information on sedimentology, stratigraphy, paleontology, environmental sciences, marine geology objectives by publication of two major scientific journals, the Journal of Sedimentary Research (JSR

303

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

304

Flathead Electric Cooperative Facility Geothermal Heat Pump System Upgrade  

SciTech Connect (OSTI)

High initial cost and lack of public awareness of ground source heat pump (GSHP) technology are the two major barriers preventing rapid deployment of this energy saving technology in the United States. Under the American Recovery and Reinvestment Act (ARRA), 26 GSHP projects have been competitively selected and carried out to demonstrate the benefits of GSHP systems and innovative technologies for cost reduction and/or performance improvement. This paper highlights findings of a case study of one of the ARRA-funded GSHP demonstration projects, which is a heating only central GSHP system using shallow aquifer as heat source and installed at a warehouse and truck bay at Kalispell, MT. This case study is based on the analysis of measured performance data, utility bills, and calculations of energy consumptions of conventional central heating systems for providing the same heat outputs as the central GSHP system did. The evaluated performance metrics include energy efficiency of the heat pump equipment and the overall GSHP system, pumping performance, energy savings, carbon emission reductions, and cost-effectiveness of GSHP system compared with conventional heating systems. This case study also identified areas for reducing uncertainties in performance evaluation, improving operational efficiency, and reducing installed cost of similar GSHP systems in the future. Publication of ASHRAE at the annual conference in Seattle.

Liu, Xiaobing [Oak Ridge National Lab] [Oak Ridge National Lab

2014-06-01T23:59:59.000Z

305

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

SciTech Connect (OSTI)

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

306

Prediction of groundwater inrush into coal mines from aquifers underlying the coal seams in China: vulnerability index method and its construction  

Science Journals Connector (OSTI)

The system in which water inrushes occur in coal mines is an open system that exchanges ... it is essential to couple the ANN with GIS, which is effective in processing the spatial...2001). Coupling of ANN and GIS

Qiang Wu; Wanfang Zhou

2008-11-01T23:59:59.000Z

307

College of Idaho Geothermal System, Caldwell, Idaho  

SciTech Connect (OSTI)

There appears to be a good potential for a 160{sup 0}F resource at the College of Idaho site. Both existing well data and recent geologic and hydrologic investigations suggest that such a temperature should be available at a depth of approximately 3500 feet. Use of a temperature in the 160{sup 0}F range would not permit a 100% displacement of present natural gas use for space and domestic hot water. Because these systems were typically designed for 200{sup 0}F water or low pressure steam (approx. 220{sup 0}F), the performance of the existing equipment would be less than peak building requirements. However, even without major system modifications (the cost of which would be unreasonable), a geothermal system based on the above resource temperature would be capable of displacing about 78% of current natural gas consumption attributable to space and domestic hot water heating. The system outlined in the report would consist of a 3500 foot production well which would supply geothermal fluid to 12 major buildings on campus. Geothermal water would be passed through heat exchangers in each building. The heat exchangers would deliver heat to the existing heating loops. Most buildings would still require a small amount of input from the existing boiler during the coldest periods of the year. After having passed through the system, the geothermal water would then be injected into a disposal well. This is a key factor in the overall economics of the system. The assumption has been made that a full depth (3550 foot) injection well would be required. It is possible, though unclear at this point, that injection could be accomplished at a shallower depth into a similar aquifer. Since the injection well amounts to 24% of the total system capital cost, this is an important factor.

Rafferty, K.

1984-10-01T23:59:59.000Z

308

Case history: Vertical barrier wall system for Superfund Site  

SciTech Connect (OSTI)

Design considerations and construction aspects are presented for the installation of a vertical barrier wall system for the Boeing Company at a Superfund Site near Seattle, WA. The construction was performed during 1996. The vertical barrier wall system included: (1) a soil-bentonite (SB) slurry wall, approximately 670 meters (2200 feet) in length, ranging from 12 to 21 meters (40 to 70 feet) in depth; (2) expansion of a cover system over the area enclosed by the SB wall; and (3) surface drainage improvements. Design and construction of the system addressed requirements of a Consent Decree for the site issued in 1993. The paper discusses the development of the design to meet remedial performance goals of preventing migration of contaminants in the soil/groundwater system and aiding aquifer restoration. Secondly, the paper details installation of the SB wall, highlighting the more significant construction issues, which included excavation of the wall through glacially deposited cobbles/boulders/till as well as addressing the severe elevation changes along the wall alignment. Thirdly, the paper presents Quality Assurance (QA) monitoring and testing performed during the construction phase.

Koelling, M.A.; Kovac, C.P.; Norris, J.E.

1997-12-31T23:59:59.000Z

309

Prediction of groundwater inrush into coal mines from aquifers underlying the coal seams in China: application of vulnerability index method to Zhangcun Coal Mine, China  

Science Journals Connector (OSTI)

Groundwater inrush is a geohazard that can significantly impact safe operations of the coal mines in China. Its occurrence is controlled ... network (ANN) and geographic information system (GIS). The detailed pro...

Qiang Wu; Wanfang Zhou; Jinhua Wang; Shuhan Xie

2009-05-01T23:59:59.000Z

310

A Framework for Environmental Assessment of CO2 Capture and Storage Systems  

E-Print Network [OSTI]

2 can be injected into oil reservoirs in a process known assaline aquifers, oil and gas reservoirs, un-mineable coal

Sathre, Roger

2013-01-01T23:59:59.000Z

311

Library System Library System  

E-Print Network [OSTI]

Library System #12;Library System 5150 Anthony Wayne Drive David Adamany Undergraduate Library that for the current fiscal year, we've been given an additional $600,000 for our library materials budget. We're very subscriptions. The Wayne State University Libraries are deeply committed to providing our faculty and students

Cinabro, David

312

Five-year summary and evaluation of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in 2004-2009.  

SciTech Connect (OSTI)

This document reviews the performance of the groundwater (and wetlands) restoration program implemented by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Utica, Nebraska, during the first five years (2004-2009) of this initiative. The report summarizes treatment system operational data and regulatory compliance monitoring results for the site during this period, together with the results of the targeted groundwater sampling and analysis for volatile organic compounds (VOCs) conducted in early 2010 (following completion of the fifth year of systems operation), to assess the initial five years of progress of the Utica remediation effort. On the basis of the 2003 groundwater sampling results, a remedial system employing 4 extraction wells (GWEX1-GWEX4), with groundwater treatment by spray irrigation and conventional air stripping, was implemented with the concurrence of the CCC/USDA and the agencies (Table 1.1). The principal components of the system are shown in Figure 1.3 and are briefly described in Section 1.2. Operation of well GWEX4 and the associated air stripper began on October 29, 2004, and routine operation of wells GWEX1-GWEX3 and the spray irrigation treatment units began on November 22, 2004.

LaFreniere, L. M. (Environmental Science Division) [Environmental Science Division

2011-09-13T23:59:59.000Z

313

Metering Systems  

Broader source: Energy.gov [DOE]

A variety of metering systems are currently on the market for Federal facility implementation. The information below outlines common metering system capabilities and common metering system components.

314

Distribution System Audits, Leak Detection, and Repair: Kirtland Air Force Base Leak Detection and Repair Program  

Broader source: Energy.gov (indexed) [DOE]

Best Management Practice Best Management Practice Case Study #3 Distribution System Audits, Leak Detection, and Repair Kirtland Air Force Base - Leak Detection and Repair Program Overview Kirtland Air Force Base (AFB) performed an award winning leak detection and repair program in 2006. The results of the project are saving Kirtland AFB 179 million gallons each year, which is over 16% of the total water use at the base. Kirtland AFB is located on 52,000 acres, southeast and adjacent to Albuquerque, New Mexico. The area is a high altitude desert, only receiving about 8 inches of rain each year. Kirtland AFB draws water from an under- ground aquifer via seven production wells through- out the base. The base also has access to water from the City of Albuquerque. The underground water

315

Distribution System Audits, Leak Detection, and Repair: Kirtland Air Force Base Leak Detection and Repair Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Best Management Practice Best Management Practice Case Study #3 Distribution System Audits, Leak Detection, and Repair Kirtland Air Force Base - Leak Detection and Repair Program Overview Kirtland Air Force Base (AFB) performed an award winning leak detection and repair program in 2006. The results of the project are saving Kirtland AFB 179 million gallons each year, which is over 16% of the total water use at the base. Kirtland AFB is located on 52,000 acres, southeast and adjacent to Albuquerque, New Mexico. The area is a high altitude desert, only receiving about 8 inches of rain each year. Kirtland AFB draws water from an under- ground aquifer via seven production wells through- out the base. The base also has access to water from the City of Albuquerque. The underground water

316

CONCEPTUAL DESIGN OF OPTIMIZED FOSSIL ENERGY SYSTEMS WITH CAPTURE AND SEQUESTRATION OF CARBON DIOXIDE  

SciTech Connect (OSTI)

In this semi-annual progress report, we describe research results from an ongoing study of fossil hydrogen energy systems with CO{sub 2} sequestration. This work was performed under NETL Award No. DE-FC26-02NT41623, during the six-month period September 2002 through March 2003. The primary objective of the study is to better understand system design issues and economics for a large-scale fossil energy system co-producing H{sub 2} and electricity with CO{sub 2} sequestration. This is accomplished by developing analytic and simulation methods for studying the entire system in an integrated way. We examine the relationships among the different parts of a hydrogen energy system, and attempt to identify which variables are the most important in determining both the disposal cost of CO{sub 2} and the delivered cost of H{sub 2}. A second objective is to examine possible transition strategies from today's energy system toward one based on fossil-derived H{sub 2} and electricity with CO{sub 2} sequestration. We are carrying out a geographically specific case study of development of a fossil H{sub 2} system with CO{sub 2} sequestration, for the Midwestern United States, where there is presently substantial coal conversion capacity in place, coal resources are plentiful and potential sequestration sites in deep saline aquifers are widespread.

Joan M. Ogden

2003-06-26T23:59:59.000Z

317

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

SciTech Connect (OSTI)

In this final progress report, we describe research results from Phase I of a technical/economic study of fossil hydrogen energy systems with CO{sub 2} sequestration. This work was performed under NETL Award No. DE-FC26-02NT41623, during the period September 2002 through August 2005 The primary objective of the study is to better understand system design issues and economics for a large-scale fossil energy system co-producing H{sub 2} and electricity with CO{sub 2} sequestration. This is accomplished by developing analytic and simulation methods for studying the entire system in an integrated way. We examine the relationships among the different parts of a hydrogen energy system, and identify which variables are the most important in determining both the disposal cost of CO{sub 2} and the delivered cost of H{sub 2}. A second objective is to examine possible transition strategies from today's energy system toward one based on fossil-derived H{sub 2} and electricity with CO{sub 2} sequestration. We carried out a geographically specific case study of development of a fossil H{sub 2} system with CO{sub 2} sequestration, for the Midwestern United States, where there is presently substantial coal conversion capacity in place, coal resources are plentiful and potential sequestration sites in deep saline aquifers are widespread.

Joan M. Ogden

2005-11-29T23:59:59.000Z

318

Porous media compressed air energy storage (PM-CAES): Theory and simulation of the coupled wellbore-reservoir system  

E-Print Network [OSTI]

of selected compressed air energy storage studes, Pacificaspects of compressed-air energy storage in aquifers, J. ofresources and compressed air energy storage (CAES), Energy,

Oldenburg, C.M.

2014-01-01T23:59:59.000Z

319

Computer System,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

undergraduate summer institute http:institutes.lanl.govistisummer-school 2015 Computer System, Cluster, and Networking Summer Institute Purpose The Computer System,...

320

TOUGHREACT: A Simulation Program for Non-isothermal Multiphase...  

Office of Scientific and Technical Information (OSTI)

reservoirs and hydrothermal systems, nuclear waste isolation, groundwater quality, sequestration of carbon dioxide in saline aquifers, and supergene copper enrichment....

Note: This page contains sample records for the topic "llucmajor aquifer system" 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.


321

Results of Detailed Hydrologic Characterization Tests - Fiscal Year 2003  

SciTech Connect (OSTI)

This report presents results obtained from detailed hydrologic characterization of the unconfined aquifer system conducted at the Hanford Site.

Spane, Frank A.; Newcomer, Darrell R.

2004-09-13T23:59:59.000Z

322

Systems Synthesis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Synthesis. Integration, and Control System synthesis, integration, and control requires creativity and a broad vision of the big picture of the system to be able to select the best...

323

File Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

File Systems File Systems File Systems For a general description of the different file systems available on PDSF please see Eliza File Systems and Other File Systems. Below is a summary of how STAR uses the various systems: /common The STAR software is installed on /common. For 32sl44 it is under /common/star/star44 and for sl53 it is under /common/star/star53. In both cases the software consists primarily of a STAR-specific ROOT installation on which releases of the STAR libraries are built as shown on the Local STAR Libraries page. /eliza3, /eliza6, /eliza9, /eliza14, /eliza15, /eliza17 STAR has space on 6 elizas as shown in the table below. File System star space (TB) use eliza3 39 production eliza6 9 production eliza9 39 production eliza14 34 production, user space under /eliza14/star/pwg

324

Hydraulisk och termisk grundvattenmodellering av ett geoenergilager i Stockholmsåsen; Hydraulic and thermal groundwater modelling of a geothermal energy system in the Stockholmesker.  

E-Print Network [OSTI]

?? Geothermal energy can be extracted from an aquifer, where the groundwater is used as heat exchange medium while heat and cold are stored in… (more)

Landström, Carolin

2014-01-01T23:59:59.000Z

325

A new pseudo time for geopressured aquifers  

E-Print Network [OSTI]

for sponsoring my project. To Dr. Tom A. Blasingsme for his technical support. I want to thank all my friends for giving me the strength to accomplish this goal, specially: Jairo, Ximena and Ernesto, Violette, John and Peggy, el loco Woody (James Keating...

Villegas, Mauricio Eduardo

2012-06-07T23:59:59.000Z

326

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

seasonal storage in phase change material, by collecting andof incorporating phase-change materials (PCM) in con- crete

Authors, Various

2011-01-01T23:59:59.000Z

327

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

FUTURE CONSIDERATIONS FOR CAVERN STORAGE Some of the topicsgravel or sand into the cavern in order to reduce the volumeAbove ground equipment for cavern storage opera- tions.

Authors, Various

2011-01-01T23:59:59.000Z

328

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network [OSTI]

high-pressure hot water and cavern of hot oil the potentialC, 18.6 MPa (2 1 700 and deep cavern of hot oil (Collins andprocedures, well design, and cavern leaching have been

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

329

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

330

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

and R.A. Zakhidov, "Storage of Solar Energy in a Sandy-Heat as Related to the Storage of Solar Energy. Sharing the1974. Geothermal Storage of Solar Energy, in "Governors

Authors, Various

2011-01-01T23:59:59.000Z

331

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

1974. Geothermal Storage of Solar Energy, in "Governors1976. "Geothermal Storage of Solar Energy for Electric PowerUnderground Longterm Storage of Solar Energy - An Overview,"

Authors, Various

2011-01-01T23:59:59.000Z

332

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

III, "Man-made Geothermal Energy," presented at MiamiA.C.Meyers III; "Manmade Geothermal Energy", Proc. of Miamiin soils extraction of geothermal energy heat storage in the

Authors, Various

2011-01-01T23:59:59.000Z

333

Characterizing aquifer heterogeneity using hydraulic tomography  

E-Print Network [OSTI]

well-studied site in northeastern Kansas. A computer program has been developed to analyze the data by extending the 3D homogeneous spherical radial equation to the heterogeneous case. The analysis program is capable of efficiently resolving zones...

Wachter, Brian James

2008-07-29T23:59:59.000Z

334

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

Scale Thermal Energy Storage for Cogeneration and Solarsolar captors, thermal effluents, low cost energy duringSeale Thermal Energy Storage for Cogeneration and Solar

Authors, Various

2011-01-01T23:59:59.000Z

335

Regional Analysis And Characterization Of Fractured Aquifers...  

Open Energy Info (EERE)

geothermal applications include the recognition of and exploration for deep fracture permeability in crystalline rocks. It is well known that the best currently available...

336

The Sparta aquifer, northern Brazos County, Texas  

E-Print Network [OSTI]

aasaita- bld because ef aa excess of dissolved mineraL smtter. From 1940 to 1950 the College purchased its water fram the City ef Bryaa, Aa investigation was conducted by Hnator (1949) and it, wss rocessseaded that, the most economicaL msthed ?f...

Wauters, John F

1956-01-01T23:59:59.000Z

337

Lithoautotrophic Microbial Ecosystems in Deep Basalt Aquifers  

Science Journals Connector (OSTI)

...Microcosms containing only crushed basalt and ground water supported microbial growth. These results suggest that...RESULT OF DRILLING WITHIN THE SATURATED ZONE , GROUND WATER MONITORING AND REMEDIATION 14 , 140 ( 1994 ). • BOSTON P.J. , ON THE...

Todd O. Stevens; James P. McKinley

1995-10-20T23:59:59.000Z

338

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

summer heat as by solar ponds or "heating towers"; some goodsolar cooking (third world) Relieve firewood depletion Year-round exploitation No cooling towers

Authors, Various

2011-01-01T23:59:59.000Z

339

Modeling of CO2 storage in aquifers  

E-Print Network [OSTI]

Feb 6, 2011 ... atmosphere, increasing its temperature (greenhouse effect). To minimize climate change impacts, geological sequestration of CO2 is an ...

santos,,,

340

Review Paper/ Biodegradation in Contaminated Aquifers  

E-Print Network [OSTI]

) in the treatment of ground water contamination, particularly for hydrocarbons (for reviews, see Christensen et al of biologically reactive compounds in ground water has been an area of intense study in recent decades. Much through an engineering approach. Many ground water scientists have used geochemical methods, targeting

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network [OSTI]

8 T. E. 8 1977, Subsurface waste heat ' experimental study:to process heat and waste heat recovery in the primaryand use what is now waste heat. The ability to provide heat

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

342

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

F. J. Molz. Subsurface Waste Heat Storage, Experimentalfor land disposal of waste heat and waste water. Inst. forfor land disposal of waste heat and waste water. Inst. for

Authors, Various

2011-01-01T23:59:59.000Z

343

THERMAL ENERGY STORAGE IN AQUIFERS WORKSHOP  

E-Print Network [OSTI]

the International Solar Energy Society, Winnipeg, Canada. 8:Intern. Solar Energy Soc. , Winnipeg, Canada, August 15-20,

Authors, Various

2011-01-01T23:59:59.000Z

344

AQUIFER THERMAL ENERGY STORAGE-A SURVEY  

E-Print Network [OSTI]

source of energy, proceedings, International Solar Energybuilding and solar energy could be used as sources of heat

Tsang, Chin Fu

2012-01-01T23:59:59.000Z

345

Advanced Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Advanced Systems: Advanced Systems: high Performance fenestration systems Research areas: Research activities to improve the performance of windows and other fenestration products must address window systems issues as well as Glazing Materials research. LBNL activities in the area of Advanced Systems include research at both the product level and the building envelope and building systems levels. Highly insulating windows - using non structural center layers Lower cost solutions to more insulating three layer glazing systems, with the potential to turn windows in U.S. heating dominated residential applications into net-energy gainers. Highly Insulating Window Frames In collaboration with the Norwegian University of Science and Technology, we are researching the potentials for highly insulating window frames. Our initial work examines European frames with reported U-factors under 0.15 Btu/hr-ft2-F. Future research aims to analyze these designs, verify these performance levels and ensure that procedures used to calculate frame performance are accurate.

346

Microfluidic Systems Integrated Microfluidic Systems**  

E-Print Network [OSTI]

Microfluidic Systems Integrated Microfluidic Systems** Rustem F. Ismagilov* Keywords: analytical methods · enzymes · microfluidics · microreactors · protein structures Microfluidic systems use networks of channels thinner than a human hair to manipulate nanoliter volumes of re- agents. The goal of microfluidics

Ismagilov, Rustem F.

347

Carbon Systems  

SciTech Connect (OSTI)

The electronic states of a 'quantum dot-graphene monolayer-SiO{sub 2} + n{sup +}-Si substrate' system in an external magnetic field are studied. An analytical expression for charge transfer in this system is obtained. The electronic states of a 'quantum dot-graphene bilayer-SiO{sub 2} + n{sup +}-Si substrate' system are considered. The systems under study are interesting from the viewpoint of controlling the optical properties of a quantum dot by means of an applied electric field.

Alisultanov, Z. Z., E-mail: zaur0102@gmail.com [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

2013-06-15T23:59:59.000Z

348

Muon systems  

SciTech Connect (OSTI)

The designs of both the GEM and SDC muon systems an the technological choices are reviewed. In particular, the chamber options for the detectors are discussed.

Bensinger, J.

1991-10-01T23:59:59.000Z

349

Non-uniqueness problem in estimating original gas in place  

E-Print Network [OSTI]

and a negligence of the effect of a considerable encroaching aquifer that could be thought not to exist. This study shows several examples for synthetic gas reservoir/aquifer systems that are modeled mathematically, then programmed, to simulate...

El-Ahmady, Mohamed Hamed

2000-01-01T23:59:59.000Z

350

Electric potential source localization reveals a borehole leak during hydraulic fracturing  

Science Journals Connector (OSTI)

...long-term problems by employing continuous aquifer monitoring based on the physical principals...aquitards and wells in multilayered-aquifer systems: Water Resources Research, 47...for moment tensor characterization of fracking events: Geophysics, 77 , no.-5...

A. K. Haas; A. Revil; M. Karaoulis; L. Frash; J. Hampton; M. Gutierrez; M. Mooney

351

Impact of Shale Gas Development on Regional Water Quality  

Science Journals Connector (OSTI)

...hydraulically fractured shale aquifers . Ground Water 50 , 826...Areas Underlain by the Glacial Aquifer System, Northern United States...Hydraulic fracturing, or "fracking," a technology being used...reviews what is known about fracking and makes suggestions for improving...

R. D. Vidic; S. L. Brantley; J. M. Vandenbossche; D. Yoxtheimer; J. D. Abad

2013-05-17T23:59:59.000Z

352

Power system  

DOE Patents [OSTI]

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18T23:59:59.000Z

353

telecommunications system management  

Science Journals Connector (OSTI)

Communications system management applied to telecommunications systems, facilities, equipment, and components. See communications system , comm...

2001-01-01T23:59:59.000Z

354

Conceptual Design of Optimized Fossil Energy Systems with Capture and Sequestration of Carbon Dioxide  

E-Print Network [OSTI]

aquifers and coal beds. Incorporate GIS layers for regionala GIS database for the state of Ohio, an area where coal-GIS) format to show the location of H 2 demand, fossil energy complexes, coal

Ogden, Joan M

2004-01-01T23:59:59.000Z

355

LRRB Pavement Management Systems Pavement Management Systems  

E-Print Network [OSTI]

LRRB Pavement Management Systems Pavement Management Systems Presented by: Michael Marti SRF for implementing and monitoring research results (RIC) #12;LRRB Pavement Management Systems LRRB Structure LRRB Current Pavement Management System Used ICON (Goodpointe) Year of Pavement Management System

Minnesota, University of

356

BSU GHP District Heating and Cooling System (PHASE I) Geothermal Project |  

Open Energy Info (EERE)

BSU GHP District Heating and Cooling System (PHASE I) Geothermal Project BSU GHP District Heating and Cooling System (PHASE I) Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title BSU GHP District Heating and Cooling System (PHASE I) Project Type / Topic 1 Recovery Act - Geothermal Technologies Program: Ground Source Heat Pumps Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects Project Description The Project will result in the construction of the largest ground source geothermal-based closed loop GHP heating and cooling system in America. Phase I of the Project began with the design, competitive bidding, and contract award for the drilling and "looping" of 1,800 boreholes in sports fields and parking lots on the north side of campus. The components of the entire Project include: (1) 4,100 four hundred feet deep boreholes spread over about 25 acres of sport fields and parking lots (Phase I will involve 1,800 boreholes spread over about 8 acres); (2) Each Phase will require a district energy station (about 9,000 sq. feet) that will each contain (A) two 2,500 ton heat pump chillers (which can produce 150 degree (F) water for heating purposes and 42 degree (F) water for cooling purposes); and (B) a variety of water pumps, electrical and other control systems; (3) a closed loop piping system that continuously circulates about 20,000 gallons of water (no anti-freeze) per minute through the boreholes, energy stations, a (two pipe) hot water loop and a (two pipe) chilled water loop (no water is drawn from the aquifer at any point in the operation); and (4) hot/chilled water-to-air heat exchangers in each of the buildings.

357

Natural System  

Broader source: Energy.gov (indexed) [DOE]

Natural System Natural System Evaluation and Tool Development - FY11 Progress Report Prepared for U.S. Department of Energy Used Fuel Disposition Program Yifeng Wang (SNL) Michael Simpson (INL) Scott Painter (LANL) Hui-Hai Liu (LBNL) Annie B. Kersting (LLNL) July 15, 2011 FCRD-USED-2011-000223 UFD Natural System Evaluation - FY11 Year-End Report July 15, 2011 2 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe

358

Lighting Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Purple LED lamp Purple LED lamp Lighting Systems Lighting research is aimed at improving the energy efficiency of lighting systems in buildings and homes across the nation. The goal is to reduce lighting energy consumption by 50% over twenty years by improving the efficiency of light sources, and controlling and delivering illumination so that it is available, where and when needed, and at the required intensity. Research falls into four main areas: Sources and Ballasts, Light Distribution Systems, Controls and Communications, and Human Factors. Contacts Francis Rubinstein FMRubinstein@lbl.gov (510) 486-4096 Links Lighting Research Group Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends

359

An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery from the Complex Monterey Reservoir of South Ellwood Field, Offshore California  

SciTech Connect (OSTI)

Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to over 10,000,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the original oil in place. To embark upon successful re-development and to optimize reservoir management, Venoco intended to investigate, map and characterize field fracture patterns and the reservoir conduit system. In the first phase of the project, state of the art borehole imaging technologies including FMI, dipole sonic, interference tests and production logs were employed to characterize fractures and micro faults. These data along with the existing database were used in the construction of a new geologic model of the fracture network. An innovative fracture network reservoir simulator was developed to better understand and manage the aquifer’s role in pressure maintenance and water production. In the second phase of this project, simulation models were used to plan the redevelopment of the field using high angle wells. Correct placement of the wells is critical to intersect the best-developed fracture zones and to avoid producing large volumes of water from the water leg. Particula r attention was paid to those areas of the field that have not been adequately developed with the existing producers. In cooperation with the DOE and the PTTC, the new data and the new fracture simulation model were shared with other operators. Numerous fields producing from the Monterey and analogous fractured reservoirs both onshore and offshore will benefit from the methodologies developed in this project. This report presents a summary of all technical work conducted during Budget Periods I and II. Venoco elected to terminate the project after Budget Period II and not to proceed with the activities planned for Budget Period III.

Horner, Steve; Ershaghi, Iraj

2006-06-30T23:59:59.000Z

360

Seepage pathway assessment for natural gas to shallow groundwater during well stimulation, in production, and after abandonment  

Science Journals Connector (OSTI)

...to the shallow-zone aquifers shown at the top of...reservoir needed to lift the fracking fluid 1500 meters...shale to near-surface aquifers through natural pathways...systems or deep saline aquifers (de Pater and Dong...surface by a fleet of fracking trucks is unavailable...

Maurice Dusseault; Richard Jackson

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

The concepts of total stress, effective stress, and fluid pressure are important to understanding where water  

E-Print Network [OSTI]

to understanding where water comes from when producing water from a confined aquifer system. However, the overall is not drained, but rather water is produced as a function of the water and aquifer compressibilities. I present describing the extraction of water from confined aquifers is not difficult, understanding how water

Singha, Kamini

362

Understanding Carbon Sequestration Options in the United States: Capabilities of a Carbon Management Geographic Information System  

SciTech Connect (OSTI)

While one can discuss various sequestration options at a national or global level, the actual carbon management approach is highly site specific. In response to the need for a better understanding of carbon management options, Battelle in collaboration with Mitsubishi Corporation, has developed a state-of-the-art Geographic Information System (GIS) focused on carbon capture and sequestration opportunities in the United States. The GIS system contains information (e.g., fuel type, location, vintage, ownership, rated capacity) on all fossil-fired generation capacity in the Untied States with a rated capacity of at least 100 MW. There are also data on other CO2 sources (i.e., natural domes, gas processing plants, etc.) and associated pipelines currently serving enhanced oil recovery (EOR) projects. Data on current and prospective CO2 EOR projects include location, operator, reservoir and oil characteristics, production, and CO2 source. The system also contains information on priority deep saline aquifers and coal bed methane basins with potential for sequestering CO2. The GIS application not only enables data storage, flexible map making, and visualization capabilities, but also facilitates the spatial analyses required to solve complex linking of CO2 sources with appropriate and cost-effective sinks. A variety of screening criteria (spatial, geophysical, and economic) can be employed to identify sources and sinks most likely amenable to deployment of carbon capture and sequestration systems. The system is easily updateable, allowing it to stay on the leading edge of capture and sequestration technology as well as the ever-changing business landscape. Our paper and presentation will describe the development of this GIS and demonstrate its uses for carbon management analysis.

Dahowski, Robert T.; Dooley, James J.; Brown, Daryl R.; Mizoguchi, Akiyoshi; Shiozaki, Mai

2001-04-03T23:59:59.000Z

363

System Verification II Systems Engineering  

E-Print Network [OSTI]

in safety critical systems to prevent unsafe values, e.g. high doses of radiation. Remember: not just should be able to: Explain the role & practice of debugging in the software process. Describe in detail the purpose, scope of, and activities comprising each of the three main phases of software testing. Conduct

Bryson, Joanna J.

364

Gasification Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

GASIFICATION SYSTEMS GASIFICATION SYSTEMS U.S. DEPARTMENT OF ENERGY TECHNOLOGY PROGRAM PLAN PREFACE ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any

365

Gasification system  

DOE Patents [OSTI]

A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the fluidized bed. Coal particulates in a transport gas are injected through an inner tube, and an oxygen rich mixture of oxygen and steam are injected through an inner annulus about the inner tube. A gaseous medium relatively lean in oxygen content, such as steam, is injected through an annulus surrounding the inner annulus.

Haldipur, Gaurang B. (Hempfield, PA); Anderson, Richard G. (Penn Hills, PA); Cherish, Peter (Bethel Park, PA)

1985-01-01T23:59:59.000Z

366

Gasification system  

DOE Patents [OSTI]

A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the fluidized bed. Coal particulates in a transport gas are injected through an inner tube, and an oxygen rich mixture of oxygen and steam are injected through an inner annulus about the inner tube. A gaseous medium relatively lean in oxygen content, such as steam, is injected through an annulus surrounding the inner annulus.

Haldipur, Gaurang B. (Hempfield, PA); Anderson, Richard G. (Penn Hills, PA); Cherish, Peter (Bethel Park, PA)

1983-01-01T23:59:59.000Z

367

Integrated System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Integrated Window System Our research activities in the field of high performance windows have led us to conclude that even by using high performance insulating glass units, low conductivity frames, and warm edge spacers, there are still untapped sources for improving energy efficiency in the design and use of residential windows. While such high performance windows are a dramatic improvement over conventional units, they do not reduce conductive losses through wall framing around the window, offer guarantees against excessive wall/window infiltration nor do they adapt to the daily and seasonal potentials for night insulation and summer shading. To meet this need, we have been working on the design, development, and prototyping of Integrated Window Systems (IWS) since 1993. Integrated Window Systems are a form of panelized construction where the wall panel includes an operable or fixed window sash, recessed night insulation, integral solar shading, and is built in a factory setting in order to minimize thermal short circuits and infiltration at joints. IWSs can be built in modular lengths to facilitate their installation with conventional wood frame stick construction or other forms of panelized construction.

368

Advanced Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Optimal gap width for double and triple glazing systems Optimal gap width for double and triple glazing systems Glazing systems in the US are commonly designed with a 1/2 " (12.7 mm) gap. The optimal gap width depends on many factors, such as gas fill (air, argon, krypton), the use of Low-e coatings, the environmental conditions (temperature difference across the window), and the calculation standard used. NFRC standard conditions are -18 C (-0.4 F) outside, and 21 C (69.8 F) inside. The calculation standard used in the US is based on the ISO 15099 standard. European standard conditions are 0 C (32 F) outside, and 20 C (68 F) inside. The calculation standard is based on the EN 673 standard. A number of common glazing configurations both with and without Low-e coatings, and with a variety of gas fills were evaluated using both the North American NFRC standard and the European EN 673 standard. All results were calculated using WINDOW 6.3 from LBNL. All IGU's (Insulated Glazing Units) have a standard height of 1 meter.

369

NETL: Coal Gasification Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Coal Gasification Systems News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan...

370

Systems and Industry Analyses  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

systems and industry analyses News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program...

371

Power Systems Engineering  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and distribution systems; steam, water, fuel, and environmental monitoring systems; alternative energy systems; reliability, availability, and maintainability assessments;...

372

Gasification Systems Project Portfolio  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2014 Gasification Systems Project Portfolio News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International...

373

Bearing system  

DOE Patents [OSTI]

A bearing system includes backup bearings for supporting a rotating shaft upon failure of primary bearings. In the preferred embodiment, the backup bearings are rolling element bearings having their rolling elements disposed out of contact with their associated respective inner races during normal functioning of the primary bearings. Displacement detection sensors are provided for detecting displacement of the shaft upon failure of the primary bearings. Upon detection of the failure of the primary bearings, the rolling elements and inner races of the backup bearings are brought into mutual contact by axial displacement of the shaft.

Kapich, Davorin D. (Carlsbad, CA)

1987-01-01T23:59:59.000Z

374

A 3D partial-equilibrium model to simulate coupled hydrogeological, microbiological, and geochemical processes in subsurface systems  

E-Print Network [OSTI]

in a laboratory column and redox zonation in a contaminated aquifer. INDEX TERMS: 1615 Global and Lasaga, 1994] or kinetic [e.g., Zheng, 1999; MacQuarrie and Sudicky, 2001] descriptions, efforts

375

Advanced Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Glazing Systems Glazing Systems Using Non-Structural Center Glazing Layers Windows in the United States use aproximately 2 quads a year in heating energy, approximately one third of all building space heating energy used and the largest single end use attributed to windows. Even if all existing windows were replaced with todayÂ’s ENERGY STAR low-e products (U values < 0.35 Btu/hr-ft2-F), windows related heating would still be over 1 Quad. Because heating loads are strongly tied to conductive losses, technologies which lead to lower window U-factors are the key to reducing heating energy. A 0.1 Btu/hr-ft2-F window is targeted as a product, which will meet the requirements of zero-energy homes. Dynamic control of solar gains will further reduce heating needs by allowing winter solar heat gains to be effectively utilized while limiting cooling season gains. Significant cooling load savings can also be expected from lower U-factor windows in certain climates and from dynamic windows in all climates.

376

Performance evaluation of granular activated carbon system at Pantex: Rapid small-scale column tests to simulate removal of high explosives from contaminated groundwater  

SciTech Connect (OSTI)

A granular activated carbon (GAC) system is now in operation at Pantex to treat groundwater from the perched aquifer that is contaminated with high explosives. The main chemicals of concern are RDX and HMX. The system consists of two GAC columns in series. Each column is charged with 10,000 pounds of Northwestern LB-830 GAC. At the design flow rate of 325 gpm, the hydraulic loading is 6.47 gpm/ft{sup 2}, and the empty bed contact time is 8.2 minutes per column. Currently, the system is operating at less than 10% of its design flow rate, although flow rate increases are expected in the relatively near future. This study had several objectives: Estimate the service life of the GAC now in use at Pantex; Screen several GACs to provide a recommendation on the best GAC for use at Pantex when the current GAC is exhausted and is replaced; Determine the extent to which natural organic matter in the Pantex groundwater fouls GAC adsorption sites, thereby decreasing the adsorption capacity for high explosives; and Determine if computer simulation models could match the experimental results, thereby providing another tool to follow system performance.

Henke, J.L.; Speitel, G.E. [Univ. of Texas, Austin, TX (United States). Dept. of Civil Engineering] [Univ. of Texas, Austin, TX (United States). Dept. of Civil Engineering

1998-08-01T23:59:59.000Z

377

Ignition system  

SciTech Connect (OSTI)

This patent describes an ignition system of an internal combustion engine which consists of: a permanent magnet supported by a rotary member of the engine adapted to rotate in synchronism with a rotary shaft of the engine; a generating coil for generating an electromotive force to produce an electric current as the permanent magnet acts on the generating coil during the rotation of the rotary member; an ignition capacitor charged by the electric current generated by the generating coil; a thyristor caused to turn on by a counter electromotive force generated by the generating coil to thereby cause the ignition capacitor to begin to discharge; and an ignition coil generating a high voltage as the ignition capacitor begins to discharge, to cause a spark discharge to take place in an ignition plug of the internal combustion engine.

Kondo, T.; Ohno, S.

1986-09-16T23:59:59.000Z

378

Computer Systems Administrator  

E-Print Network [OSTI]

Computer Systems Administrator Fort Collins, CO POSITION A Computer Systems Administrator (Non activities. RESPONSIBILITIES The System Administrator will provide Unix/Linux, Windows computer system or computer science, and three years computer systems administration experience. DURATION The work is planned

379

Death Valley Lower Carbonate Aquifer Monitoring Program Wells Down Gradient of the Proposed Yucca Mountain Nuclear Waste Repository, U. S. Department of Energy Grant DE-RW0000233 2010 Project Report, prepared by The Hydrodynamics Group, LLC for Inyo County Yucca Mountain Repository Assessment Office  

SciTech Connect (OSTI)

Inyo County completed the first year of the U.S. Department of Energy Grant Agreement No. DE-RW0000233. This report presents the results of research conducted within this Grant agreement in the context of Inyo County's Yucca Mountain oversight program goals and objectives. The Hydrodynamics Group, LLC prepared this report for Inyo County Yucca Mountain Repository Assessment Office. The overall goal of Inyo County's Yucca Mountain research program is the evaluation of far-field issues related to potential transport, by ground water, of radionuclide into Inyo County, including Death Valley, and the evaluation of a connection between the Lower Carbonate Aquifer (LCA) and the biosphere. Data collected within the Grant is included in interpretive illustrations and discussions of the results of our analysis. The centeral elements of this Grant prgoram was the drilling of exploratory wells, geophysical surveys, geological mapping of the Southern Funeral Mountain Range. The cullimination of this research was 1) a numerical ground water model of the Southern Funeral Mountain Range demonstrating the potential of a hydraulic connection between the LCA and the major springs in the Furnace Creek area of Death Valley, and 2) a numerical ground water model of the Amargosa Valley to evaluate the potential for radionuclide transport from Yucca Mountain to Inyo County, California. The report provides a description of research and activities performed by The Hydrodynamics Group, LLC on behalf of Inyo County, and copies of key work products in attachments to this report.

King, Michael J; Bredehoeft, John D., Dr.

2010-09-03T23:59:59.000Z

380

Solar system  

SciTech Connect (OSTI)

An improved solar heat collecting system is described comprising: a collecting means having upper and lower end caps; means for supporting the collecting means in a position generally perpendicular to ambit solar radiation and to permit periodic adjustment thereof; the support means including a base, a first support bar pivotally secured to the base and extending parallel to the ground, and a first support member extending perpendicular from the first support bar to the lower end cap. The support means also includes a second support bar pivotally secured to the base and extending generally parallel to the first support bar, a support leg having a lower portion that extends perpendicularly from the second support bar, an intermediate leg portion slidingly mounted on the lower leg portion and an upper leg portion pivotally secured to the intermediate leg portion, and a second support member extending perpendicularly from the upper leg portion to the upper end cap; lens means disposed above the collecting means for concentrating solar radiation on the collecting means; a pair of reflector means mounted below and on opposite sides of the radiation shadow of the lens means for concentrating solar radiation on the collecting means; mounting means for mounting the lens means and the reflector means. The mounting means includes first and second bracket means rotatively mounted respectively to the first and second support members. A pair of radially extending U-shaped reflector mounts have opposite ends secured to respective bracket means, and a pair of radially extending lens supports secured to respective bracket means; and means for rotating the mounting means and associated lens mean and reflector means to track the source of solar radiation whereby an improved, highly efficient solar heat collecting system is provided.

Gregory, S.T.

1987-02-24T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

TheU-Tube: A Novel System for Acquiring Borehole Fluid Samplesfrom a Deep Geologic CO2 Sequestration Experiment  

SciTech Connect (OSTI)

A novel system has been deployed to obtain geochemical samples of water and gas, at in situ pressure, during a geologic CO2 sequestration experiment conducted in the Frio brine aquifer in Liberty County, Texas. Project goals required high-frequency recovery of representative and uncontaminated aliquots of a rapidly changing two-phase (supercritical CO2-brine) fluid from 1.5 km depth. The datasets collected, using both the liquid and gas portions of the downhole samples, provide insights into the coupled hydro-geochemical issues affecting CO2 sequestration in brine-filled formations. While the basic premise underlying the U-Tube sampler is not new, the system is unique because careful consideration was given to the processing of the recovered two-phase fluids. In particular, strain gauges mounted beneath the high-pressure surface sample cylinders measured the ratio of recovered brine to supercritical CO2. A quadrupole mass spectrometer provided real-time gas analysis for perfluorocarbon and noble gas tracers that were injected along with the CO2. The U-Tube successfully acquired frequent samples, facilitating accurate delineation of the arrival of the CO2 plume, and on-site analysis revealed rapid changes in geochemical conditions.

Freifeld, Barry M.; Trautz, Robert C.; Kharaka, Yousif K.; Phelps, Tommy J.; Myer, Larry R.; Hovorka, Susan D.; Collins, Daniel J.

2005-03-17T23:59:59.000Z

382

Onsite Wastewater Treatment Systems: Spray Distribution System  

E-Print Network [OSTI]

Spray distribution systems for wastewater are much like lawn sprinkler systems, in that they spray treated wastewater over the surface of a yard. This publication explains how spray distribution systems work, what their design requirements are...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

383

Separation system  

DOE Patents [OSTI]

A separation system for dewatering radioactive waste materials includes a disposal container, drive structure for receiving the container, and means for releasably attaching the container to the drive structure. Separation structure disposed in the container adjacent the inner surface of the side wall structure retains solids while allowing passage of liquids. Inlet port structure in the container top wall is normally closed by first valve structure that is centrifugally actuated to open the inlet port and discharge port structure at the container periphery receives liquid that passes through the separation structure and is normally closed by second valve structure that is centrifugally actuated to open the discharge ports. The container also includes coupling structure for releasable engagement with the centrifugal drive structure. Centrifugal force produced when the container is driven in rotation by the drive structure opens the valve structures, and radioactive waste material introduced into the container through the open inlet port is dewatered, and the waste is compacted. The ports are automatically closed by the valves when the container drum is not subjected to centrifugal force such that containment effectiveness is enhanced and exposure of personnel to radioactive materials is minimized.

Rubin, Leslie S. (Newton, MA)

1986-01-01T23:59:59.000Z

384

Integrated Nanofluidic Systems for Systems Biotechnology  

E-Print Network [OSTI]

Integrated Nanofluidic Systems for Systems Biotechnology Wednesday October 28 2009 Burchard 118, 11 in prestigious journals including Science and Nature Biotechnology. Hong's research interests include Bio

Fisher, Frank

385

NREL: Energy Systems Integration Facility - Systems Integration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

system components for grid-connected, standalone, and microgrid applications Test large power system components such as inverters, diesel and natural gas generators, battery...

386

Minimal fusion systems.  

E-Print Network [OSTI]

??We define minimal fusion systems in a way that every non-solvable fusion system has a section which is minimal. Minimal fusion systems can also be… (more)

Henke, Ellen

2010-01-01T23:59:59.000Z

387

Object Management Systems  

E-Print Network [OSTI]

Object-Oriented Database Management Systems for EngineeringR. Cassel. Distribution Management Systems: Functions and8-PWR 1988. Network Management Systems 52 Subodh Bapat.

Gollu, Aleks Ohannes

1995-01-01T23:59:59.000Z

388

Environmental Management System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Management System Environmental Management System An Environmental Management System is a systematic method for assessing mission activities, determining the environmental impacts...

389

Environmental Management System Plan  

E-Print Network [OSTI]

R-3 • Environmental Management System Plan References 30.of Energy, Safety Management System Policy, DOE P 450.4 (E), Environmental Management Systems ? Requirements with

Fox, Robert

2009-01-01T23:59:59.000Z

390

Earth System Modeling  

Science Journals Connector (OSTI)

Earth system models are important research tools for improving understanding ... climate system (and maybe never will), Earth system models nowadays typically focus on specific aspects, for...

Patrick Jöckel

2012-01-01T23:59:59.000Z

391

Geographic Information System (GIS)  

Science Journals Connector (OSTI)

The geographic information system is a branch of health information system and public health information system ...developed for the capture, storage, manipulation, analysis, and visualization of geographic ...

2008-01-01T23:59:59.000Z

392

Logical Systems Incorporated The Help Systems  

E-Print Network [OSTI]

Logical Systems Incorporated The Help Systems T A B L E O F C O N T E N T S Introduction ..................................... page 2 HELP/CMD ..................................... page 3 HELPRESx ................................... page 17 #12;LDOS Help System Page 1 The LDOS HELP Systems Introduction This documentation covers all

Mann, Tim

393

System design description cone penetrometer system  

SciTech Connect (OSTI)

The system design description documents in detail the design of the cone penetrometer system. The systems includes the cone penetrometer physical package, raman spectroscopy package and moisture sensor package. Information pertinent to the system design, development, fabrication and testing is provided.

Seda, R.Y., Westinghouse Hanford

1996-08-12T23:59:59.000Z

394

A Changing Framework for Urban Water Systems  

Science Journals Connector (OSTI)

? Department of Civil & Environmental Engineering, Colorado School of Mines, Golden, Colorado 80401, United States ... Although many challenges remain with regard to environmental impacts, desalination is now considered a viable option for urban water supply, particularly in situations where either climate change or short-term events (e.g., catastrophic floods) compromise water quantity and quality. ... Stormwater harvesting couples flood control and urban runoff management with urban water supply by capturing runoff and recharging it to drinking water aquifers or by reusing stormwater for nonpotable uses. ...

Janet G. Hering; T. David Waite; Richard G. Luthy; Jörg E. Drewes; David L. Sedlak

2013-05-08T23:59:59.000Z

395

Industrial and Systems engineering  

E-Print Network [OSTI]

Industrial and Systems engineering COLLEGE of ENGINEERING DepartmentofIndustrialandSystemsEngineering EDGE Engineering Entrepreneur Certificate Program is a great addition to an industrial and systems to expert clinical recommendations. engineering.wayne.edu/isefaculty Industrial and systems engineering

Berdichevsky, Victor

396

Systems and Industry Analyses  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan Project Portfolio Project...

397

Gasification Systems Publications  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan Project Portfolio Project...

398

Gasification Systems Publications  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Publications News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan Project...

399

Hospital Information System  

Science Journals Connector (OSTI)

A hospital information system is an information system for processing data, information and knowledge in hospital ...

2008-01-01T23:59:59.000Z

400

Modeling and assessment of flow and transport in the Hueco Bolson, a transboundary groundwater system: the El Paso / Cuidad Juarez case  

E-Print Network [OSTI]

. Additionally, historical, current, and future stresses on the Hueco Bolson alluvial aquifer in the El Paso/Ciudad Juarez area due to excessive groundwater withdrawal can affect contaminant migration in the area. In the current study, an updated and improved...

Nwaneshiudu, Okechukwu

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

PIA - Human Resources System/Payroll System | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

System PIA - Human Resources SystemPayroll System More Documents & Publications PIA - INL PeopleSoft - Human Resource System PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM...

402

Influence strategies for systems of systems  

E-Print Network [OSTI]

Distributed decision making has been identified as a source of managerial complexity for leaders of systems of systems (SoS). A new framework, AIR (Anticipation-Influence-Reaction), is proposed to capture the feedback ...

Shah, Nirav Bharat, 1979-

2013-01-01T23:59:59.000Z

403

Heating System Specification Specification of Heating System  

E-Print Network [OSTI]

Appendix A Heating System Specification /* Specification of Heating System (loosely based */ requestHeat : Room ­? bool; 306 #12; APPENDIX A. HEATING SYSTEM SPECIFICATION 307 /* user inputs */ livingPattern : Room ­? behaviour; setTemp : Room ­? num; heatSwitchOn, heatSwitchOff, userReset : simple

Day, Nancy

404

Preliminary formation analysis for compressed air energy storage in depleted natural gas reservoirs : a study for the DOE Energy Storage Systems Program.  

SciTech Connect (OSTI)

The purpose of this study is to develop an engineering and operational understanding of CAES performance for a depleted natural gas reservoir by evaluation of relative permeability effects of air, water and natural gas in depleted natural gas reservoirs as a reservoir is initially depleted, an air bubble is created, and as air is initially cycled. The composition of produced gases will be evaluated as the three phase flow of methane, nitrogen and brine are modeled. The effects of a methane gas phase on the relative permeability of air in a formation are investigated and the composition of the produced fluid, which consists primarily of the amount of natural gas in the produced air are determined. Simulations of compressed air energy storage (CAES) in depleted natural gas reservoirs were carried out to assess the effect of formation permeability on the design of a simple CAES system. The injection of N2 (as a proxy to air), and the extraction of the resulting gas mixture in a depleted natural gas reservoir were modeled using the TOUGH2 reservoir simulator with the EOS7c equation of state. The optimal borehole spacing was determined as a function of the formation scale intrinsic permeability. Natural gas reservoir results are similar to those for an aquifer. Borehole spacing is dependent upon the intrinsic permeability of the formation. Higher permeability allows increased injection and extraction rates which is equivalent to more power per borehole for a given screen length. The number of boreholes per 100 MW for a given intrinsic permeability in a depleted natural gas reservoir is essentially identical to that determined for a simple aquifer of identical properties. During bubble formation methane is displaced and a sharp N2methane boundary is formed with an almost pure N2 gas phase in the bubble near the borehole. During cycling mixing of methane and air occurs along the boundary as the air bubble boundary moves. The extracted gas mixture changes as a function of time and proximity of the bubble boundary to the well. For all simulations reported here, with a formation radius above 50 m the maximum methane composition in the produced gas phase was less than 0.5%. This report provides an initial investigation of CAES in a depleted natural gas reservoir, and the results will provide useful guidance in CAES system investigation and design in the future.

Gardner, William Payton

2013-06-01T23:59:59.000Z

405

Energy Systems Integration  

Broader source: Energy.gov (indexed) [DOE]

Systems Integration Systems Integration Ben Kroposki, PhD, PE Director, Energy Systems Integration National Renewable Energy Laboratory 2 Reducing investment risk and optimizing systems in a rapidly changing energy world * Increasing penetration of variable RE in grid * Increasing ultra high energy efficiency buildings and controllable loads * New data, information, communications and controls * Electrification of transportation and alternative fuels * Integrating energy storage (stationary and mobile) and thermal storage * Interactions between electricity/thermal/fuels/data pathways * Increasing system flexibility and intelligence Current Energy Systems Future Energy Systems Why Energy Systems Integration? 3 Energy Systems Integration Continuum Scale Appliance (Plug)

406

Systems Analysis Workshop Purpose  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

National Renewable Energy Laboratory National Renewable Energy Laboratory DOE Hydrogen Program DOE Hydrogen Program Systems Analysis Workshop Systems Analysis Workshop Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Systems Integration Production Delivery Conversion Application Education Codes & Standards Safety Tech Validation Storage Washington D.C. 28-29 Jul 04 Dale Gardner Systems Integration Operated for the U.S. Department of Energy by Midwest Research Institute * Battelle 2 Systems Analysis Workshop Topics * Meeting Goals * Systems Integration * Roles/Responsibilities of Analysis Participants * Systems Analysis * From this Workshop * Capability Presentations 3 Systems Analysis Workshop Meeting Goals 1) Understand the roles and activities of the DOE Technology Analyst,

407

Rural Intelligent Transportation Systems  

E-Print Network [OSTI]

System--activates lights on a STOP sign as a vehicle approaches the sign. · Curve Warning System System--records data on vehicle behavior that can be analyzed and used as a design input. Design the systems. Each system is made up of detection nodes that trigger the sign nodes. Results Foderberg

Minnesota, University of

408

Fan System Assessment Tool  

Broader source: Energy.gov [DOE]

The Fan System Assessment Tool (FSAT) is a free online software tool that helps industrial users quantify energy use and savings opportunities in industrial fan systems. Use FSAT to understand how well your fan systems are operating, determine the economic benefit of system modifications, and establish which options are most economically viable when multiple opportunities exist for system modification.

409

Microsoft Word - 2005 CCR- Nellis AFB _2_.RTF  

National Nuclear Security Administration (NNSA)

and wildlife. Landfills, domestic septic systems, and leaking underground storage tanks are all potential sources of contamination for groundwater aquifers. Treatment Process...

410

Hydrochemistry of selected parameters at the Raft River KGRA...  

Open Energy Info (EERE)

effects of geothermal development of the shallower aquifer systems. Sampling of water from wells within the KGRA has been conducted since the onset of the project in...

411

Evaluation of Analytical and Numerical Techniques for Defining the Radius of Influence for an Open-Loop Ground Source Heat Pump System  

SciTech Connect (OSTI)

In an open-loop groundwater heat pump (GHP) system, groundwater is extracted, run through a heat exchanger, and injected back into the ground, resulting in no mass balance changes to the flow system. Although the groundwater use is non-consumptive, the withdrawal and injection of groundwater may cause negative hydraulic and thermal impacts to the flow system. Because GHP is a relatively new technology and regulatory guidelines for determining environmental impacts for GHPs may not exist, consumptive use metrics may need to be used for permit applications. For consumptive use permits, a radius of influence is often used, which is defined as the radius beyond which hydraulic impacts to the system are considered negligible. In this paper, the hydraulic radius of influence concept was examined using analytical and numerical methods for a non-consumptive GHP system in southeastern Washington State. At this location, the primary hydraulic concerns were impacts to nearby contaminant plumes and a water supply well field. The results of this study showed that the analytical techniques with idealized radial flow were generally unsuited because they over predicted the influence of the well system. The numerical techniques yielded more reasonable results because they could account for aquifer heterogeneities and flow boundaries. In particular, the use of a capture zone analysis was identified as the best method for determining potential changes in current contaminant plume trajectories. The capture zone analysis is a more quantitative and reliable tool for determining the radius of influence with a greater accuracy and better insight for a non-consumptive GHP assessment.

Freedman, Vicky L.; Mackley, Rob D.; Waichler, Scott R.; Horner, Jacob A.

2013-09-26T23:59:59.000Z

412

Fundamentals of Dynamical Systems  

Science Journals Connector (OSTI)

For the purposes of control system design, analysis, test, and repair, the most important part of the very broad subject known as system theory is the theory of dynamical systems. It is difficult to give a pre...

William S. Levine

2005-01-01T23:59:59.000Z

413

Analyzing Scrip Systems  

E-Print Network [OSTI]

Scrip systems provide a nonmonetary trade economy for exchange of resources. We model a scrip system as a stochastic game and study system design issues on selection rules to match potential trade partners over time. We ...

Johnson, Kristine Dianne

414

Hopper System Diagram  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

System Diagram System Diagram Diagram of IO architecture on Hopper Diagram of external IO services on the Hopper system Last edited: 2011-04-14 15:11:1...

415

Development of Operation System  

Science Journals Connector (OSTI)

We are gradually developing a total hospital information system known as GUNMAS (Gunma University Network for Medical-Hospital- Information Archiving System). an operation system is also being developed as part o...

Seiji Kato M.D.; Yasuharu Kitani M.D.…

1992-01-01T23:59:59.000Z

416

Steam System Survey Guide  

Broader source: Energy.gov [DOE]

This guide provides technical information for steam system operational personnel and plant energy managers on some of the major opportunities available to improve the energy efficiency and productivity of industrial steam systems. The guide covers five main areas of investigation: (1) profiling a steam system, (2) identifying steam properties for the steam system, (3) improving boiler operations, (4) improving resource utilization in the steam system, and (5) investigating energy losses in the steam distribution system.

417

CONTRACTOR PURCHASING SYSTEM REVIEWS  

Energy Savers [EERE]

PURCHASING SYSTEM REVIEWS RISK ASSESSMENT MATRIX RISK CATEGORY PERFORMANCE SCHEDULE COST HIGH (3) --Performance data casts significant doubt on the ability of the system or key...

418

Abstract: Regularized Boussinesq systems  

E-Print Network [OSTI]

A Boussinesq System for Two-way Propagation of Nonlinear Dispersive Waves. In this report, we study a system which describes approximately the ...

419

Control system design method  

DOE Patents [OSTI]

A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)

2012-02-21T23:59:59.000Z

420

Flex Fuel Vehicle Systems  

Broader source: Energy.gov (indexed) [DOE]

& Variable Advanced Management Injection Injection Sensors Control Units Fuel Supply & Plastic Parts Control Transmission Engineering Gasoline Systems GSENS, GSENS-NA System...

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Umbra's system representation.  

SciTech Connect (OSTI)

This document describes the Umbra System representation. Umbra System representation, initially developed in the spring of 2003, is implemented in Incr/Tcl using concepts borrowed from Carnegie Mellon University's Architecture Description Language (ADL) called Acme. In the spring of 2004 through January 2005, System was converted to Umbra 4, extended slightly, and adopted as the underlying software system for a variety of Umbra applications that support Complex Systems Engineering (CSE) and Complex Adaptive Systems Engineering (CASE). System is now a standard part Of Umbra 4. While Umbra 4 also includes an XML parser for System, the XML parser and Schema are not described in this document.

McDonald, Michael James

2005-07-01T23:59:59.000Z

422

Precision Diagnostic System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Precision Diagnostic System For NIF to reach the goal of ignition, it needs to produce highly shaped pulses that are precisely controlled. NIF's precision diagnostic system (PDS)...

423

Hydrogeologic properties and ground-water chemistry of the Rattlesnake Ridge interbed at well 699-25-80 (DB-14) Hanford Site  

SciTech Connect (OSTI)

Offsite migration studies were conducted to characterize the hydraulic properties and groundwater chemistry of confined aquifer systems within the Hanford Site. These studies support the recommendations in ERDA-1538 to provide input for hydrologic modeling of groundwater flow within the Hanford Site, to afford information concerning possible contamination of underlying confined aquifer systems and to make the results available to the public. This report presents analytical results and aquifer test procedures used in characterizing the Rattlesnake Ridge interbed at well 699-25-80. The overall close association in groundwater chemistries and presence of elevated nitrate levels suggest that the Rattlesnake Ridge interbed may be locally in communication with the overlying unconfined aquifer system. Other physical evidence which indicates a potential local communication with the unconfined aquifer system includes: favorable stratigraphic position; absence of the confining Elephant Mountain basalt in surrounding areas; and intersection of a recharge boundary during aquifer tests of well 699-25-80.

Spane, F.A. Jr.; Howland, M.D.; Strait, S.R.

1980-11-01T23:59:59.000Z

424

NERSC File Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Systems Systems NERSC File Systems Overview NERSC file systems can be divided into two categories: local and global. Local file systems are only accessible on a single platform, providing best performance; global file systems are accessible on multiple platforms, simplifying data sharing between platforms. File systems are configured for different purposes. On each machine you have access to at least three different file system Home: Permanent, relatively small storage for data like source code, shell scripts, etc. that you want to keep. This file system is not tuned for high performance from parallel jobs. Referenced by the environment variable $HOME. Scratch: Large, high-performance file system. Place your large data files in this file system for capacity and capability computing. Data is

425

Fusion systems of -type  

Science Journals Connector (OSTI)

We prove results on 2-fusion systems related to the 2-fusion systems of groups of Lie type over the field of order 2 and certain sporadic groups. The results are used in a later paper to determine the N-systems: the 2-fusion systems of N-groups.

Michael Aschbacher

2013-01-01T23:59:59.000Z

426

SYSTEM DESIGN Lessons Learned  

E-Print Network [OSTI]

· 48% Efficiency PREREFORMER ZNO HDS TURBO EXPANDER FUEL CONDENSER FUEL EXHAUST H2 FUEL H2 A C FUEL Cell Systems High Power Shipboard System 625kW SSFC Demo 45-50% Efficient System Low Power High EfficiencyLow Power, High Efficiency Tactical Power System · Enable 3X improvement in Ship Service Fuel Cell

427

Space System Architecture  

E-Print Network [OSTI]

Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)

McManus, Dr. Hugh

428

Medical imaging systems  

DOE Patents [OSTI]

A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

Frangioni, John V

2013-06-25T23:59:59.000Z

429

Mission Operations & Data Systems  

E-Print Network [OSTI]

Mission Operations & Data Systems The LASP Mission Operations & Data Systems (MO&DS) group staffs and instruments. Operational software acts like the health systems in a body, ensuring that temperature, energy. The software monitors the health of on-board systems; anything unusual is flagged and sent to mission operators

Mojzsis, Stephen J.

430

NREL: Systems Engineering - 2015 Wind Energy Systems Engineering...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Systems Engineering Wind Research Systems Engineering Printable Version 2015 Wind Energy Systems Engineering Workshop The third NREL Wind Energy Systems Engineering Workshop will...

431

FNAL system patching design  

SciTech Connect (OSTI)

FNAL has over 5000 PCs running either Linux or Windows software. Protecting these systems efficiently against the latest vulnerabilities that arise has prompted FNAL to take a more central approach to patching systems. Due to different levels of existing support infrastructures, the patching solution for linux systems differs from that of windows systems. In either case, systems are checked for vulnerabilities by Computer Security using the Nessus tool.

Schmidt, Jack; Lilianstrom, Al; Romero, Andy; Dawson, Troy; Sieh, Connie; /Fermilab

2004-01-01T23:59:59.000Z

432

Hydrostratigraphy of the General Separations Area, Savannah River Site (SRS), South Carolina  

SciTech Connect (OSTI)

Detailed analysis and synthesis of geophysical, core, and hydrologic data from 230 wells were used to delineate the hydrostratigraphy and aquifer characteristics of the General Separations Area at SRS. The study area is hydrologically bounded on the north and northwest by Upper Three Runs Creek (UTRC) and on the south by Fourmile Branch (FB). The Cretaceous-Tertiary sedimentary sequence underlying the study area is divided into two Aquifer Systems; in ascending order, Aquifer Systems I and 11. The study concentrated on Aquifer System U, which includes all the Tertiary sediments above the Black Mingo Group (Paleocene) to the water table. This report includes a series of lithostratigraphic cross-sections, piezometric gradient profiles, head ratio contour maps, aquifer isopach maps, and potentiometric surface maps which illustrate the aquifer characteristics of the study area.

Aadland, R.K.; Harris, M.K.; Lewis, C.M.; Gaughan, T.F. [Westinghouse Savannah River Co., Aiken, SC (United States); Westbrook, T.M. [Dames and Moore, Atlanta, GA (United States)

1991-01-01T23:59:59.000Z

433

ELECTRICAL ENERGY SYSTEMS ELECTRICAL ENERGY SYSTEMS  

E-Print Network [OSTI]

. In its Energy Policy, the Scottish Government stated that it is Scotland's ambition to become a worldMEng ELECTRICAL ENERGY SYSTEMS #12;MEng ELECTRICAL ENERGY SYSTEMS Electrical energy is vital aspects of modern life. One of the biggest challenges facing society is the need for reliable energy

Strathclyde, University of

434

EPICS system: system structure and user interface  

SciTech Connect (OSTI)

This paper present the user's view of and the general organization of the EPICS control system at Fermilab. Various subsystems of the EPICS control system are discussed. These include the user command language, software protection, the device database, remote computer interfaces, and several application utilities. This paper is related to two other papers on EPICS: an overview paper and a detailed implementation paper.

West, R.E.; Bartlett, J.F.; Bobbitt, J.S.; Lahey, T.E.; Kramper, B.J.; MacKinnon, B.A.

1984-02-01T23:59:59.000Z

435

Renovating Residential HVAC Systems HVAC Systems  

E-Print Network [OSTI]

- 1 - LBNL 57406 Renovating Residential HVAC Systems HVAC Systems J.A. McWilliams and I.S. Walker and Air Conditioning), and Stacy Hunt and Ananda Harzell (IBACOS). #12;- 3 - Renovating Residential HVAC Guideline for Residential HVAC Retrofits (http

436

AUTONOMOUS ROBOTIC INSPECTION EXPERIMENTAL SYSTEM  

SciTech Connect (OSTI)

This document contains appendices on these topics: COMPUTERS AND CONTROLS; COMPUTER VISION SYSTEM; ELECTRICAL SYSTEMS; MECHANICAL SYSTEMS; ROBOTIC VEHICLE SYSTEMS; FIELD TRIALS.

David N. Rocheleau, Senior Investigator; Edward A. Hamilton, Associate Director, SCUREF; Jerry L. Hudgins, Senior Investigator; Paul McCarty, Graduate Research Assistant; Robert J. Schalkoff, Senior Investigator; Robert O. Pettus, Project Manager & Principal Investigator

1998-08-01T23:59:59.000Z

437

System Design | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

System Design System Design This template is used to define the system design System Design More Documents & Publications Transition Plan Training Plan Feasibility Study Report...

438

Environmental Management System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Management System Management System Environmental Management System An Environmental Management System is a systematic method for assessing mission activities, determining the environmental impacts of those activities, prioritizing improvements, and measuring results. May 30, 2012 The continuous improvement cycle Our Environmental Management System encourages continuous improvement of our environmental performance. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Managing our effects on the environment We are committed to protecting the environment while conducting our national security and energy-related missions. Laboratory Environmental Governing Policy What is the Environmental Management System? It covers every program in the Laboratory

439

The Montana University System Water Center, located at Montana State University-Bozeman, was established by a 1964 Act of Congress that created Water Resources Research Institutes at universities in 50 states and four  

E-Print Network [OSTI]

to quantify the amount ofx water contributed to surface water from coal aquifers targeted for coalbed methane that can be used for comprehensive studies. Montana Water Center Coalbed natural gas product water enters

Lawrence, Rick L.

440

Standard-C hydrogen monitoring system, system design description  

SciTech Connect (OSTI)

Standard-C cabinet arrangement system design description for the Standard Hydrogen Monitoring System.

Schneider, T.C., Westinghouse Hanford

1996-08-29T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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

Fiscal system analysis â?? contractual systems  

Science Journals Connector (OSTI)

Production sharing contracts are one of the most popular forms of contractual system used in petroleum agreements around the world, but the manner in which the fiscal terms and contract parameters impact system measures is complicated and not well understood. The purpose of this paper is to quantify the influence of private and market uncertainty in contractual fiscal systems. A meta-modelling approach is employed that couples the results of a simulation model with regression analysis to construct numerical functionals that quantify the fiscal regime. Relationships are derived that specify how the present value, rate of return, and take statistics vary as a function of the system parameters. The deepwater Girassol field development in Angola is taken as a case study.

Mark J. Kaiser

2006-01-01T23:59:59.000Z

442

Electricity Distribution System Workshop  

Broader source: Energy.gov (indexed) [DOE]

Discussion Summary Discussion Summary Electricity Transmission System Workshop 1 Grid Tech Team Discussion Summary Electricity Transmission System Workshop 2 Table of Contents INTRODUCTION ............................................................................................................................................. 3 EXECUTIVE SUMMARY .................................................................................................................................. 4 Process ...................................................................................................................................................... 4 Synthesized Challenges ............................................................................................................................. 5

443

Supply Systems Analyst  

Broader source: Energy.gov [DOE]

In this position you will serve as a Supply Systems Analyst for Supply Chain Services. The incumbent is responsible for managing and supporting multiple electronic database systems, including Asset...

444

Insulation Monitoring Systems  

Science Journals Connector (OSTI)

In this chapter there is presented general information on insulation deterioration signalization systems for AC IT networks. Few systems of continuous insulation supervision are described. The old concepts includ...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

445

Modular optical detector system  

DOE Patents [OSTI]

A modular optical detector system. The detector system is designed to detect the presence of molecules or molecular species by inducing fluorescence with exciting radiation and detecting the emitted fluorescence. Because the system is capable of accurately detecting and measuring picomolar concentrations it is ideally suited for use with microchemical analysis systems generally and capillary chromatographic systems in particular. By employing a modular design, the detector system provides both the ability to replace various elements of the detector system without requiring extensive realignment or recalibration of the components as well as minimal user interaction with the system. In addition, the modular concept provides for the use and addition of a wide variety of components, including optical elements (lenses and filters), light sources, and detection means, to fit particular needs.

Horn, Brent A. (Livermore, CA); Renzi, Ronald F. (Tracy, CA)

2006-02-14T23:59:59.000Z

446

Oxford System 400  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oxford Plasmalab System 400 Sputtering System For questions concerning this machines capabilities, please contact Varshni Singh, at 578-0248. ecr.jpg (48456 bytes)  : ecr1.jpg...

447

Design of assembly systems  

Science Journals Connector (OSTI)

The success of any assembly system depends on the translation of its design into an implemented working facility. The purpose of this chapter is to describe and explain the system elements and how they are com...

Shimon Y. Nof; Wilbert E. Wilhelm; Hans-Jürgen Warnecke

1997-01-01T23:59:59.000Z

448

Energy systems transformation  

Science Journals Connector (OSTI)

Energy systems transformation 10...associated with the incumbent energy economy that is unlikely to...its gatekeepers, such as auditors, analysts, debt-rating...problems generated by the energy system became more visible...

A. T. C. Jérôme Dangerman; Hans Joachim Schellnhuber

2013-01-01T23:59:59.000Z

449

Solar powered desalination system  

E-Print Network [OSTI]

17 1.2.4 Reverse Osmosis…………………………………………………19 1.345 Chapter 2: Reverse Osmosis System…………………………………………………….46 2.1 Reverse Osmosis System Set Up…………………………………………….46 2.2

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

450

Residential Geothermal Systems Credit  

Broader source: Energy.gov [DOE]

A resident individual taxpayer of Montana who installs a geothermal heating or cooling system in their principal dwelling can claim a tax credit based on the installation costs of the system, not...

451

Crowd-powered systems  

E-Print Network [OSTI]

Crowd-powered systems combine computation with human intelligence, drawn from large groups of people connecting and coordinating online. These hybrid systems enable applications and experiences that neither crowds nor ...

Bernstein, Michael Scott

2012-01-01T23:59:59.000Z

452

Systems Analysis Workshop Agenda  

Broader source: Energy.gov [DOE]

Agenda from DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004 to discuss and define role of systems analysis in DOE Hydrogen Program.

453

Energy systems transformation  

Science Journals Connector (OSTI)

...Energy System. The alternative energy system comprises solar, wind, geothermal, and hydro energy; among its associated technologies...lock-in effects. Also, rising costs caused by scarcity of energy sources or expensive and proliferating...

A. T. C. Jérôme Dangerman; Hans Joachim Schellnhuber

2013-01-01T23:59:59.000Z

454

Automobile Electrical Systems  

Science Journals Connector (OSTI)

The modern electrical system has been developed, over a period of some fifty years from the days of the early motor-car which usually had only one electrical system, namely, that of the ignition comp...

Arthur W. Judge

1970-01-01T23:59:59.000Z

455

Evolution of Web Systems  

Science Journals Connector (OSTI)

The World Wide Web has led to a new kind of software, web systems, which are based on web technologies. Just like software in other domains, web systems have evolution challenges. This chapter discusses evolution...

Holger M. Kienle; Damiano Distante

2014-01-01T23:59:59.000Z

456

Field studies of virus transport in a heterogeneous sandy aquifer  

E-Print Network [OSTI]

for unsaturated- snd saturated-zone modeling, respectively. Each module contains ground water flow and viral transport models. The steady ground water flow fields in both zones are determined semi- analytically. Following the ground water flow computation... utilizes tubing attached to a submersible pump which fits inside the monitoring well. The pump is lowered to the desired depth and the satnple retrieved. These pumps can be dedicated to the well and are available for AC or DC power sources. A portable...

Vogel, Jason Robert

2012-06-07T23:59:59.000Z

457

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

Open Energy Info (EERE)

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...

458

Enhancement of in situ microbial remediation of aquifers  

DOE Patents [OSTI]

Methods are provided for remediating subsurface areas contaminated by toxic organic compounds. An innocuous oil, such as vegetable oil, mineral oil, or other immiscible organic liquid, is introduced into the contaminated area and permitted to move therethrough. The oil concentrates or strips the organic contaminants, such that the concentration of the contaminants is reduced and such contaminants are available to be either pumped out of the subsurface area or metabolized by microorganisms. Microorganisms may be introduced into the contaminated area to effect bioremediation of the contamination. The methods may be adapted to deliver microorganisms, enzymes, nutrients and electron donors to subsurface zones contaminated by nitrate in order to stimulate or enhance denitrification.

Fredrickson, James K. (Kennewick, WA); Brockman, Fred J. (Kennewick, WA); Streile, Gary P. (both or Richland, WA); Cary, John W. (both or Richland, WA); McBride, John F. (Carrboro, NC)

1993-01-01T23:59:59.000Z

459

Capture zone design for a contaminated shallow unconfined aquifer  

E-Print Network [OSTI]

from the early 1950's to 1987. The extent of the ground water contamination has impacted City of Austin properties, private residential areas, and is migrating towards the Colorado River to the South. A capture zone is proposed to stop the contaminants...

Cann, Eric Roy

2012-06-07T23:59:59.000Z

460

Economic and Hydrologic Implications of Proposed Edwards Aquifer Management Plans  

E-Print Network [OSTI]

, according to Texas water law, ground water is a property right vested with the land owner. Throughout at least the past two decades, attempts to negotiate voluntary management plans to restrict pumpage have been unsuccessful, even though demand is projected...

Dillon, Carl R.; Jones, Lonnie L.; Williams, R. Lynn; Jordan, Wayne R.; McCarl, Bruce A.

Note: This page contains sample records for the topic "llucmajor aquifer system" 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.


461

Beyond the Aquifer : planning for San Antonio's future water supply.  

E-Print Network [OSTI]

??This report examines water supply planning issues in San Antonio, Texas. San Antonio is unique among large cities in the United States in that it… (more)

Laughlin, Nathan Daniel

2010-01-01T23:59:59.000Z

462

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...

Mohamed, Ibrahim Mohamed 1984-

2012-10-25T23:59:59.000Z

463

The role of aquifer storage and recovery (ASR) in sustainbility.  

E-Print Network [OSTI]

??Kuwait is an arid country situated at the head of the Arabian Gulf and its water resources can be classified into three significant types: (1)… (more)

AlRukaibi, Duaij

2011-01-01T23:59:59.000Z

464

Redistribution of Geothermal Heat by a Shallow Aquifer  

Science Journals Connector (OSTI)

...NOMENCLATDRE surface due to solar heat energy can be approx- imated by t = time since...thesubscripts x.y.z. the concjuction of solar energy into the earth, a L - thickness of overburden...MaVin,J., 1970, Prospecting by the geothermic methods: Geophysical Prospecting, v...

465

Protistan Predation Affects Trichloroethene Biodegradation in a Bedrock Aquifer  

Science Journals Connector (OSTI)

...35 Norris, R. 1994. Handbook of bioremediation. Lewis...chlorinated solvents: fundamentals and field applications...research on the bottom-up force of resource availability...impact of the top-down force of protistan predation...unless the top-down force of protistan predation...

Joseph J. Cunningham III; Nancy E. Kinner; Maureen Lewis

2009-10-09T23:59:59.000Z

466

Underground helium travels to the Earth's surface via aquifers...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

carried to the surface with the flow of water. The only place where helium is made on Earth is underground, where deep veins of uranium and thorium give off atoms of helium as...

467

Linear programming optimization for aquifer influence functions on microcomputers  

E-Print Network [OSTI]

for increasing operating speed and efficient computer storage with the AIF p~ on micraccmputers. Three LP methods were investigated on microoczrputers using the AIF p~: (I) the simplex method, (2) the revised simplex methcd, and (3) the symmetric msthcd. Each... ACKNOWLEIGEMENTS TABLE OF CONTENTS LIST OF TABLES LIST OF FIGURES INTRODUCTION LP METHODS V V1 V11 Simplex Methcd Revised Simplex Methcd Symmetric Methcd 5 12 18 TEST PROBLEMS 23 Test Problem 1 Test Problem 2 23 24 25 DISCUSSION OF RESULTS 03...

Brown, Don L

2012-06-07T23:59:59.000Z

468

Groundwater: the processes and global significance of aquifer degradation  

Science Journals Connector (OSTI)

...from urbanization (field survey data for different...that the agricultural production at risk from unsustainable...value of agricultural production at US$840 million...1987. Shaded areas are cumulative land-surface subsidence...for potable supplies oil well formation water...

2003-01-01T23:59:59.000Z

469

Relationship of Hydrogen Bioavailability to Chromate Reduction in Aquifer Sediments  

Science Journals Connector (OSTI)

...Media Ecosystem Fresh Water microbiology Geologic...Oxidation-Reduction Water Supply georef;2010007932...studies geochemistry ground water hydrogen laboratory studies...Oklahoma pollution reduction remediation sediments United States...

Tamara L. Marsh; Michael J. McInerney

2001-04-01T23:59:59.000Z

470

In situ Arsenic Remediation in a fractured, alkaline aquifer  

Science Journals Connector (OSTI)

In situ removal of arsenic from ground water used for water supply has been accomplished in circum-neutral ground water containing high dissolved iron concentrations. In contrast, the ground water at our study...

Alan H. Welch; Kenneth G. Stollenwerk; Douglas K. Maurer…

2003-01-01T23:59:59.000Z

471

Biodegradation of organic compounds in vadose zone and aquifer sediments.  

Science Journals Connector (OSTI)

...rotary head. Conventional, steam-cleaned, hollow-stem augers...phos- phorus, by using the ignition method (34); total nitrogen...mineral nitrogen, by using steam distillation (22); and exchangeable...substrates. This suggestion is based on the assumption that the affinities...

A Konopka; R Turco

1991-08-01T23:59:59.000Z

472

Enhancement of in situ microbial remediation of aquifers  

DOE Patents [OSTI]

Methods are provided for remediating subsurface areas contaminated by toxic organic compounds. An innocuous oil, such as vegetable oil, mineral oil, or other immiscible organic liquid, is introduced into the contaminated area and permitted to move therethrough. The oil concentrates or strips the organic contaminants, such that the concentration of the contaminants is reduced and such contaminants are available to be either pumped out of the subsurface area or metabolized by microorganisms. Microorganisms may be introduced into the contaminated area to effect bioremediation of the contamination. The methods may be adapted to deliver microorganisms, enzymes, nutrients and electron donors to subsurface zones contaminated by nitrate in order to stimulate or enhance denitrification. 4 figures.

Fredrickson, J.K.; Brockman, F.J.; Streile, G.P.; Cary, J.W.; McBride, J.F.

1993-11-30T23:59:59.000Z

473

Hydrogeology and groundwater modeling of a Calvert Bluff aquifer  

E-Print Network [OSTI]

was 38. 9 million tons, of which 99% was lignite. Texas was the nation's sixth ranking coal producing state in 1983 (Kaiser, 1985). Commercial lignite reserves occur in lower Tertiary Eocene strata of the Texas coastal plain in the Wilcox Group... and others, 1980). Current economics dictate a maximum lignite mining depth of approximately 200 feet. Though lignite occur- rence and distribution below 200 feet is less certain, it is known that abundant reserves are available. Kai- ser and others...

Lawrence, James

2012-06-07T23:59:59.000Z

474

The hydrochemistry of a Chalk aquifer during recovery from drought  

Science Journals Connector (OSTI)

...that the elevated starting composition was caused by the flushing...to be largely free of any agrochemicals, but the wood is relatively...springs in their chemical compositions. The one exception noted...there was little change in composition during the recovery (Table...

W. G. Darling; D. C. Gooddy; B. L. Morris; D. W. Peach

475

Determining the Fate of Herbicides in the Ogallala Aquifer.  

E-Print Network [OSTI]

nitrate ancl tritium were injected into Well 1 during a previous study, both materials proved to be accurate tracers (7, 8). Recharge began at 10:20 a.m. October 28 ancl continued for 10 days, with the chemicals being con- tinuously fed... would be pumped back within a few months. The results with herbicides are similar to those of an earlier study at the Research Center in which nitrate and DDT were pollution parameters, and tritium was the recharge water tracer (7, 8). The ni...

Schneider, A. D.; Wiese, A. F.; Jones, O. R.; Mathers, A. C.

1971-01-01T23:59:59.000Z

476

Finite element modeling of heat and mass transport in aquifers  

E-Print Network [OSTI]

of the grid test problem transient temperature distribution using upstream weighting to the solution of Avdonin (1964)(linear elements). 60 Comparison of the radial test problem transient temperature profile using upstream weighting to the solution... of Avdonin (1964)(linear elements) . . 61 12 13 Comparison of the grid problem transient temperature profile using mass lumping to the solution of Avdonin (1964). Comparison of the grid problem temperature progression using mass lumping to the solution...

Grubaugh, Elston Kent

1980-01-01T23:59:59.000Z

477

Fuel washout detection system  

DOE Patents [OSTI]

A system for detecting grossly failed reactor fuel by detection of particulate matter as accumulated on a filter.

Colburn, Richard P. (Pasco, WA)

1985-01-01T23:59:59.000Z

478

Performance Tested Comfort Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Showerheads Residential Weatherization Performance Tested Comfort Systems Ductless Heat Pumps New Construction Residential Marketing Toolkit Retail Sales Allocation Tool...

479

Monitoring System Performance (Presentation)  

SciTech Connect (OSTI)

Requirements for a standard test to rate the durability of photovoltaic (PV) modules at system voltage are discussed.

Emery, K.; Smith, R.

2011-02-01T23:59:59.000Z

480

Energy Storage Systems  

SciTech Connect (OSTI)

Energy Storage Systems – An Old Idea Doing New Things with New Technology article for the International Assoication of ELectrical Inspectors

Conover, David R.

2013-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "llucmajor aquifer system" 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.


481

Directives System Manual  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Manual provides detailed requirements to supplement DOE O 251.1A, Directives System, dated 1-30-98.

1998-01-30T23:59:59.000Z

482

Enhanced Geothermal Systems  

Broader source: Energy.gov [DOE]

Below are the project presentations and respective peer review results for Engineered Geothermal Systems, Low Temperature and Exploration Demonstration Projects.

483

Match Pumps to System Requirements  

SciTech Connect (OSTI)

BestPractices Program tip sheet discussing pumping system efficiency matching pumps to system requirements

Not Available

2005-10-01T23:59:59.000Z

484

DOE Systems Engineering Methodology  

Broader source: Energy.gov (indexed) [DOE]

Computer System Retirement Guidelines Computer System Retirement Guidelines Version 3 September 2002 U.S. Department of Energy Office of the Chief Information Officer Computer System Retirement Guidelines Date: September 2002 Page 1 Rev Date: Table of Contents Section Page Purpose ............................................................................................................................................ 2 Initiation and Distribution ............................................................................................................... 2 Resource .......................................................................................................................................... 2 General Information ........................................................................................................................

485

On Analogue TMR System  

Science Journals Connector (OSTI)

This chapter presents a reliability model of the TMR Triple Modular Redundancy system based on analogue measurement channels. While reliability modelling of the standard TMR system based on digital channels has been well described in many previous publications, ... Keywords: Fault Detection Voter FDV, Fault-Tolerant System, Redundancy, Reliability, Triple Modular Redundancy TMR

Pavel Kucera

2012-10-01T23:59:59.000Z

486

Energy Systems Laboratory Groundbreaking  

ScienceCinema (OSTI)

INL recently broke ground for a research facility that will house research programs for bioenergy, advanced battery systems, and new hybrid energy systems that integrate renewable, fossil and nuclear energy sources. Here's video from the groundbreaking ceremony for INL's new Energy Systems Laboratory. You can learn more about CAES research at http://www.facebook.com/idahonationallaboratory.

Hill, David; Otter, C.L.; Simpson, Mike; Rogers, J.W.;

2013-05-28T23:59:59.000Z

487

IDC System Specification Document.  

SciTech Connect (OSTI)

This document contains the system specifications derived to satisfy the system requirements found in the IDC System Requirements Document for the IDC Reengineering Phase 2 project. Revisions Version Date Author/Team Revision Description Authorized by V1.0 12/2014 IDC Reengineering Project Team Initial delivery M. Harris

Clifford, David J.

2014-12-01T23:59:59.000Z

488

SYSTEM SAFETY PROGRESS REPORT,  

E-Print Network [OSTI]

SYSTEM SAFETY PROGRESS REPORT, ALSEP Array E NO. ATM 1034 1 PAGE REV. NO. OF 3 DATE 26 July 1971 This A TM documents the progress of the System Safety Program for ALSEP Array E. -~/ Prepared by: · /~t:A~.., Approved by: W. · Lavin, Jr System Safety Engineer / /' J. P. ~/ es, Supervisor · , ALSEF Support

Rathbun, Julie A.

489

Plane waves Lumped systems  

E-Print Network [OSTI]

1 Impedance · Plane waves ­ Lumped systems S x y z Impedance · Plane waves ­ Lumped systems · open tube #12;2 Impedance · Plane waves ­ Lumped systems · closed tube Impedance · Cylindrical waves z x y r #12;3 Impedance · Cylindrical waves ­ Circumferential part n=0 n=1 n=2 n=3 Impedance · Cylindrical

Berlin,Technische Universität

490

Transforming our information systems  

E-Print Network [OSTI]

Transforming our information systems and technology Information Systems Development Framework #12 university. In support of this position we are transforming our information systems, servicesDonald Principal and Vice-Chancellor #12;Strategy for transformation Tactical Delivering the services and tools our

Strathclyde, University of

491

Operating System Resource Management  

E-Print Network [OSTI]

Operating System Resource Management Date: Monday, September 27, 2010 Time: 2:00 ­ 3:00 pm Location allocation and de-allocation by an operating system of processor cores, memory pages, and various types constrained. This talk will propose a scheme for addressing the operating system resource management problem

492

Offshore wind energy systems  

Science Journals Connector (OSTI)

Wind energy systems deployed in the shallow but windy waters of the southern North Sea have the potential to provide more than 20% of UK electricity needs. With existing experience of windmills, and of aircraft and offshore structures, such wind energy systems could be developed within a relatively short timescale. A preliminary assessment of the economics of offshore wind energy systems is encouraging.

P Musgrove

1978-01-01T23:59:59.000Z

493

Memory Systems Doug Burger  

E-Print Network [OSTI]

Memory Systems Doug Burger University of Wisconsin-Madison A computer's memory system and produces. A perfect memory system is one that can supply immediately any datum that the CPU requests. This ideal memory is not practically implementable, however, as the three factors of memory capacity, speed

Burger, Doug

494

MANAGEMENT CONTROL SYSTEM IN PUBLIC  

E-Print Network [OSTI]

1 MANAGEMENT CONTROL SYSTEM IN PUBLIC ADMINISTRATION: BEYOND RATIONAL MYTHS Nicolas Berland of practices around their management control systems. Despite some apparent failures, the implemented systems organizations have developed management control systems. Historically, these systems have been invented

Paris-Sud XI, Université de

495

Distribution System Research Priorities  

Broader source: Energy.gov (indexed) [DOE]

Mark McGranaghan Mark McGranaghan EPRI ELECTRICITY DISTRIBUTION SYSTEM WORKSHOP Crystal City, VA September 24, 2012 Distribution System Research Priorities 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. The Power System Roadmaps start with a Vision Future Power System will require new technologies, infrastructure, and control systems 3 © 2012 Electric Power Research Institute, Inc. All rights reserved. R&D Roadmaps - Coordination is Critical Roadmaps are living documents 4 © 2012 Electric Power Research Institute, Inc. All rights reserved. Developing the next generation grid * Industry needs new technologies, communication protocols, and information management methods - More variable generation sources and controllable loads - Aging infrastructure

496

FRIB cryogenic distribution system  

SciTech Connect (OSTI)

The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

Ganni, Venkatarao [JLAB; Dixon, Kelly D. [JLAB; Laverdure, Nathaniel A. [JLAB; Knudsen, Peter N. [JLAB; Arenius, Dana M. [JLAB; Barrios, Matthew N. [Michigan State; Jones, S. [Michigan State; Johnson, M. [Michigan State; Casagrande, Fabio [Michigan State

2014-01-01T23:59:59.000Z

497

FRIB cryogenic distribution system  

SciTech Connect (OSTI)

The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

Ganni, V.; Dixon, K.; Laverdure, N.; Knudsen, P.; Arenius, D. [Thomas Jefferson National Accelerator Facility (JLab), Newport News, VA 23606 (United States); Barrios, M.; Jones, S.; Johnson, M.; Casagrande, F. [Facility for Rare Isotope Beams (FRIB), Michigan State University, East Lansing, MI 48824 (United States)

2014-01-29T23:59:59.000Z

498

Business System Planning Project, Preliminary System Design  

SciTech Connect (OSTI)

CH2M HILL Hanford Group, Inc. (CHG) is currently performing many core business functions including, but not limited to, work control, planning, scheduling, cost estimating, procurement, training, and human resources. Other core business functions are managed by or dependent on Project Hanford Management Contractors including, but not limited to, payroll, benefits and pension administration, inventory control, accounts payable, and records management. In addition, CHG has business relationships with its parent company CH2M HILL, U.S. Department of Energy, Office of River Protection and other River Protection Project contractors, government agencies, and vendors. The Business Systems Planning (BSP) Project, under the sponsorship of the CH2M HILL Hanford Group, Inc. Chief Information Officer (CIO), have recommended information system solutions that will support CHG business areas. The Preliminary System Design was developed using the recommendations from the Alternatives Analysis, RPP-6499, Rev 0 and will become the design base for any follow-on implementation projects. The Preliminary System Design will present a high-level system design, providing a high-level overview of the Commercial-Off-The-Shelf (COTS) modules and identify internal and external relationships. This document will not define data structures, user interface components (screens, reports, menus, etc.), business rules or processes. These in-depth activities will be accomplished at implementation planning time.

EVOSEVICH, S.

2000-10-30T23:59:59.000Z

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LM Records Handling System-Fernald Historical Records System...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fernald Historical Records System, Office of Legacy Management LM Records Handling System-Fernald Historical Records System, Office of Legacy Management LM Records Handling...

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OPERATING SYSTEM CONCEPTS Avi Silberschatz  

E-Print Network [OSTI]

OPERATING SYSTEM CONCEPTS Avi Silberschatz Department of Computer Sciences University of Texas & Peter Galvin CHAPTER 1: INTRODUCTION . What is an operating system? . Early Systems . Simple Batch Systems . Distributed Systems . Real­Time Systems Operating System Concepts, Addison­Wesley � 1994

Schmidt, Douglas C.