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Note: This page contains sample records for the topic "representations capturing reservoir" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


1

Advances on Reduced Reservoir Representation for Fast Analysis of Oil Recovery Opportunities This seminar presents recent results of a strategy that uses a reduced representation of reservoirs.  

E-Print Network [OSTI]

Advances on Reduced Reservoir Representation for Fast Analysis of Oil Recovery Opportunities of reservoirs. The strategy facilitates the task of producing recovery projections on individual or a portfolio of reservoirs, by using space reduction techniques and analytical simulations. The drive for this type

Sukop, Mike

2

THMC Modeling of EGS Reservoirs ?Continuum through Discontinuum Representations: Capturing Reservoir Stimulation, Evolution and Induced Seismicity  

Broader source: Energy.gov [DOE]

This research will develop a thorough understanding of complex THMC interactions through synthesis, modeling and verification.

3

The Ardross reservoir gridblock analogue: Sedimentology, statistical representivity, and flow upscaling  

SciTech Connect (OSTI)

We have used a reservoir gridblock-sized outcrop (10m by 100m) of fluvio-deltaic sandstones to evaluate the importance of internal heterogeneity for a hypothetical waterflood displacement process. Using a dataset based on probe permeameter measurements taken from two vertical transacts representing {open_quotes}wells{close_quotes} (5cm sampling) and one {open_quotes}core{close_quotes} sample (exhaustive 1mm-spaced sampling), we evaluate the permeability variability at different lengthscales, the correlation characteristics (structure of the variogram, function), and larger-scale trends. We then relate these statistical measures to the sedimentology. We show how the sediment architecture influences the effective tensor permeability at the lamina and bed scale, and then calculate the effective relative permeability functions for a waterflood. We compare the degree of oil recovery from the formation: (a) using averaged borehole data and no geological structure, and (b) modelling the sediment architecture of the interwell volume using mixed stochastic/deterministic methods. We find that the sediment architecture has an important effect on flow performance, mainly due to bedscale capillary trapping and a consequent reduction in the effective oil mobility. The predicted oil recovery differs by 18% when these small-scale effects are included in the model. Traditional reservoir engineering methods, using averages permeability values, only prove acceptable in high-permeability and low-heterogeneity zones. The main outstanding challenge, represented by this illustration of sub-gridblock scale heterogeneity, is how to capture the relevant geological structure along with the inherent geo-statistical variability. An approach to this problem is proposed.

Ringrose, P.; Pickup, G.; Jensen, J. [Heriot-Watt Univ., Edinburgh (United Kingdom)] [and others

1997-08-01T23:59:59.000Z

4

Analysis of Field Development Strategies of CO2 EOR/Capture Projects Using a Reservoir Simulation Economic Model  

E-Print Network [OSTI]

($) Drilling cost for one well ($) Facilities cost for one pattern ($) Tubing cost for one well ($) Drilling depth (feet) EIA US Energy Information Administration EOR Enhanced Oil Recovery EOS Equation of State IEA International... in the reservoir ................................................................ 20 Figure 13: Scope of this chapter: definition of the economic model ............................... 21 Figure 14: Spot price of the oil on the WTI market from 1986 to 2013 (EIA...

Saint-Felix, Martin

2013-05-03T23:59:59.000Z

5

Carbon Capture  

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

Carbon Capture Pre-Combustion Post-Combustion CO2 Compression Systems Analysis Regulatory Drivers Program Plan Capture Handbook Carbon capture involves the separation of CO2 from...

6

CONFERENCE PROCEEDINGS EIGHTH ANNUAL CONFERENCE ON CARBON CAPTURE AND SEQUESTRATION -DOE/NETL  

E-Print Network [OSTI]

CONFERENCE PROCEEDINGS EIGHTH ANNUAL CONFERENCE ON CARBON CAPTURE AND SEQUESTRATION - DOE/NETL May ON CARBON CAPTURE AND SEQUESTRATION - DOE/NETL May 4 ­ 7, 2009 Abstract Reservoir simulation is the industry

Mohaghegh, Shahab

7

Accurate Subgrid Models for Two-Phase Flow in Heterogeneous Reservoirs  

E-Print Network [OSTI]

have a strong influence on flow and transport in oil reservoirs. In this work, a new modelAccurate Subgrid Models for Two-Phase Flow in Heterogeneous Reservoirs Yalchin R. Efendiev, SPE for the representation of subgrid terms is introduced and applied to two-phase reservoir flows. The model entails

Efendiev, Yalchin

8

Evaluating Hydrology Preservation of Simplified Terrain Representations  

E-Print Network [OSTI]

Evaluating Hydrology Preservation of Simplified Terrain Representations Ph. D. Student: Christopher captures the hydrology is important for determining the effectiveness of a terrain simplification technique also present a novel ter- rain simplification algorithm based on the compression of hydrology features

Varela, Carlos

9

Evaluating Hydrology Preservation of Simplified Terrain Representations  

E-Print Network [OSTI]

Evaluating Hydrology Preservation of Simplified Terrain Representations Jonathan Muckella , Marcus network. A quan- titative measurement of how accurately a drainage network captures the hydrology to preserve the important hydrology features. This method and other simplification schemes are then evaluated

Franklin, W. Randolph

10

The Social Dynamics of Carbon Capture and Storage  

E-Print Network [OSTI]

The Social Dynamics of Carbon Capture and Storage Understanding CCS Representations, Governance studies. He works as a Research Associate at the Scottish Carbon Capture and Storage research centre at the Scottish Carbon Capture and Storage research centre at the University of Edinburgh. His research focuses

11

Application of reservoir models to Cherokee Reservoir  

SciTech Connect (OSTI)

As a part of the Cherokee Reservoir Project hydrodynamic-temperature models and water quality models hav

Kim, B.R.; Bruggink, D.J.

1982-01-01T23:59:59.000Z

12

Loop Representations  

E-Print Network [OSTI]

The loop representation plays an important role in canonical quantum gravity because loop variables allow a natural treatment of the constraints. In these lectures we give an elementary introduction to (i) the relevant history of loops in knot theory and gauge theory, (ii) the loop representation of Maxwell theory, and (iii) the loop representation of canonical quantum gravity. (Based on lectures given at the 117. Heraeus Seminar, Bad Honnef, Sept. 1993)

B. Bruegmann

1993-12-02T23:59:59.000Z

13

DNA Motif Representation with Nucleotide Dependency  

E-Print Network [OSTI]

DNA Motif Representation with Nucleotide Dependency Francis Chin1 and Henry Leung1 1 Department, these representations cannot model biological binding sites well because they fail to capture nucleotide interdependence. It has been pointed out by many researchers that the nucleotides of the DNA binding site cannot

Chin, Francis Y.L.

14

Status of Cherokee Reservoir  

SciTech Connect (OSTI)

This is the first in a series of reports prepared by Tennessee Valley Authority (TVA) for those interested in the conditions of TVA reservoirs. This overviews of Cherokee Reservoir summarizes reservoir and watershed characteristics, reservoir uses and use impairments, water quality and aquatic biological conditions, and activities of reservoir management agencies. This information was extracted from the most current reports, publications, and data available, and interviews with water resource professionals in various Federal, state, and local agencies and in public and private water supply and wastewater treatment facilities. 11 refs., 4 figs., 1 tab.

Not Available

1990-08-01T23:59:59.000Z

15

transformations: representations  

E-Print Network [OSTI]

Overview 1. Number transformations: from one base to another 2. Integer representations 3. Real rate, caches... #12; ECS 50, Discussion on 4/25 2 Integer Transformation: From Decimal to Binary Let, Discussion on 4/25 3 Integer Transformation: From Binary to Decimal Compute the weight of each digit position

Nguyen, Dat H.

16

Feasibility of air capture  

E-Print Network [OSTI]

Capturing CO2 from air, referred to as Air Capture, is being proposed as a viable climate change mitigation technology. The two major benefits of air capture, reported in literature, are that it allows us to reduce the ...

Ranjan, Manya

2010-01-01T23:59:59.000Z

17

Generating Tensor Representation from Concept Tree in Meaning Based Search  

E-Print Network [OSTI]

to a representation that can be stored and compared efficiently on computers. Meaning of objects can be adequately captured in terms of a hierarchical composition structure called concept tree. This thesis describes the design and development...

Panigrahy, Jagannath

2011-08-08T23:59:59.000Z

18

Carbon sequestration in leaky reservoirs Alain Jean-Marie, INRIA and UMR LIRMM  

E-Print Network [OSTI]

Carbon sequestration in leaky reservoirs Alain Jean-Marie, INRIA and UMR LIRMM Michel Moreaux, February 2, 2011 Abstract We propose in this paper a model of optimal Carbon Capture and Storage in which the reservoir of sequestered carbon is leaky, and pollution eventually is released into the atmosphere. We

Boyer, Edmond

19

Reservoir management using streamline simulation  

E-Print Network [OSTI]

of information and sparsity of data. Quantifying this uncertainty in terms of reservoir performance forecast poses a major reservoir management challenge. One solution to this problem is flow simulation of a large number of these plausible reservoir descriptions...

Choudhary, Manoj Kumar

2000-01-01T23:59:59.000Z

20

Mountaineer Commerical Scale Carbon Capture and Storage (CCS) Project  

SciTech Connect (OSTI)

The Final Technical documents all work performed during the award period on the Mountaineer Commercial Scale Carbon Capture & Storage project. This report presents the findings and conclusions produced as a consequence of this work. As identified in the Cooperative Agreement DE-FE0002673, AEP's objective of the Mountaineer Commercial Scale Carbon Capture and Storage (MT CCS II) project is to design, build and operate a commercial scale carbon capture and storage (CCS) system capable of treating a nominal 235 MWe slip stream of flue gas from the outlet duct of the Flue Gas Desulfurization (FGD) system at AEP's Mountaineer Power Plant (Mountaineer Plant), a 1300 MWe coal-fired generating station in New Haven, WV. The CCS system is designed to capture 90% of the CO{sub 2} from the incoming flue gas using the Alstom Chilled Ammonia Process (CAP) and compress, transport, inject and store 1.5 million tonnes per year of the captured CO{sub 2} in deep saline reservoirs. Specific Project Objectives include: (1) Achieve a minimum of 90% carbon capture efficiency during steady-state operations; (2) Demonstrate progress toward capture and storage at less than a 35% increase in cost of electricity (COE); (3) Store CO{sub 2} at a rate of 1.5 million tonnes per year in deep saline reservoirs; and (4) Demonstrate commercial technology readiness of the integrated CO{sub 2} capture and storage system.

Deanna Gilliland; Matthew Usher

2011-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Reservoir Operation in Texas  

E-Print Network [OSTI]

management of the surface water resources of the various river basins of the state. The operation of these essential water control facilities is examined in this report. Reservoir operation is viewed here from the perspective of deciding how much water...

Wurbs, Ralph A.

22

Reservoir Protection (Oklahoma)  

Broader source: Energy.gov [DOE]

The Oklahoma Water Resource Board has the authority to make rules for the control of sanitation on all property located within any reservoir or drainage basin. The Board works with the Department...

23

Session: Reservoir Technology  

SciTech Connect (OSTI)

This session at the Geothermal Energy Program Review X: Geothermal Energy and the Utility Market consisted of five papers: ''Reservoir Technology'' by Joel L. Renner; ''LBL Research on the Geysers: Conceptual Models, Simulation and Monitoring Studies'' by Gudmundur S. Bodvarsson; ''Geothermal Geophysical Research in Electrical Methods at UURI'' by Philip E. Wannamaker; ''Optimizing Reinjection Strategy at Palinpinon, Philippines Based on Chloride Data'' by Roland N. Horne; ''TETRAD Reservoir Simulation'' by G. Michael Shook

Renner, Joel L.; Bodvarsson, Gudmundur S.; Wannamaker, Philip E.; Horne, Roland N.; Shook, G. Michael

1992-01-01T23:59:59.000Z

24

Cryogenic Carbon Capture  

SciTech Connect (OSTI)

IMPACCT Project: SES is developing a process to capture CO2 from the exhaust gas of coal-fired power plants by desublimation - the conversion of a gas to a solid. Capturing CO2 as a solid and delivering it as a liquid avoids the large energy cost of CO2 gas compression. SES’ capture technology facilitates the prudent use of available energy resources. Coal is our most abundant energy resource and is an excellent fuel for baseline power production. SES capture technology can capture 99% of the CO2 emissions in addition to a wide range of other pollutants more efficiently and at lower costs than existing capture technologies. SES’ capture technology can be readily added to our existing energy infrastructure.

None

2010-07-15T23:59:59.000Z

25

Exploring an Unstructured Lattice Representation for Carbonate Reservoir Characterization  

E-Print Network [OSTI]

carbonates via a lattice-network of pore-volumes connected in space in directions and connectivity properties driven by the rock fabric, as opposed to being limited by the rigid geometry of grid-blocks. With this goal in mind, some aspects related to a...

Pasumarti, Lakshmi

2014-05-19T23:59:59.000Z

26

GEOTHERMAL RESERVOIR SIMULATIONS WITH SHAFT79  

E-Print Network [OSTI]

that well blocks must geothermal reservoir s·tudies, paperof Califomia. LBL-10066 GEOTHERMAL RESERVOIR SIMULATIONSbe presented at the Fifth Geothermal Reservoir Engineering

Pruess, Karsten

2012-01-01T23:59:59.000Z

27

Reversible Acid Gas Capture  

ScienceCinema (OSTI)

Pacific Northwest National Laboratory scientist David Heldebrant demonstrates how a new process called reversible acid gas capture works to pull carbon dioxide out of power plant emissions.

Dave Heldebrant

2012-12-31T23:59:59.000Z

28

The Motion Capture Pipeline.  

E-Print Network [OSTI]

?? Motion Capture is an essential part of a world full of digital effects in movies and games. Understanding the pipelines between software is a… (more)

Holmboe, Dennis

2008-01-01T23:59:59.000Z

29

Capturing Energy Upgrades  

Broader source: Energy.gov [DOE]

Provides an overview of how to capture the value of energy efficiency upgrades in the real estate market, from CNT Energy.

30

A reservoir management strategy for multilayered reservoirs in eastern Venezuela  

E-Print Network [OSTI]

A reservoir management strategy has been developed for a field located in eastern Venezuela. The field contains deep, high pressure, multilayer reservoirs. A thorough formation evaluation was accomplished using the log data, core data, PVT data...

Espinel Diaz, Arnaldo Leopoldo

1998-01-01T23:59:59.000Z

31

Optoelectronic Reservoir Computing  

E-Print Network [OSTI]

Reservoir computing is a recently introduced, highly efficient bio-inspired approach for processing time dependent data. The basic scheme of reservoir computing consists of a non linear recurrent dynamical system coupled to a single input layer and a single output layer. Within these constraints many implementations are possible. Here we report an opto-electronic implementation of reservoir computing based on a recently proposed architecture consisting of a single non linear node and a delay line. Our implementation is sufficiently fast for real time information processing. We illustrate its performance on tasks of practical importance such as nonlinear channel equalization and speech recognition, and obtain results comparable to state of the art digital implementations.

Yvan Paquot; François Duport; Anteo Smerieri; Joni Dambre; Benjamin Schrauwen; Marc Haelterman; Serge Massar

2011-11-30T23:59:59.000Z

32

Reinjection into geothermal reservoirs  

SciTech Connect (OSTI)

Reinjection of geothermal wastewater is practiced as a means of disposal and for reservoir pressure support. Various aspects of reinjection are discussed, both in terms of theoretical studies as well as specific field examples. The discussion focuses on the major effects of reinjection, including pressure maintenance and chemical and thermal effects. (ACR)

Bodvarsson, G.S.; Stefansson, V.

1987-08-01T23:59:59.000Z

33

IMPACCT: Carbon Capture Technology  

SciTech Connect (OSTI)

IMPACCT Project: IMPACCT’s 15 projects seek to develop technologies for existing coal-fired power plants that will lower the cost of carbon capture. Short for “Innovative Materials and Processes for Advanced Carbon Capture Technologies,” the IMPACCT Project is geared toward minimizing the cost of removing carbon dioxide (CO2) from coal-fired power plant exhaust by developing materials and processes that have never before been considered for this application. Retrofitting coal-fired power plants to capture the CO2 they produce would enable greenhouse gas reductions without forcing these plants to close, shifting away from the inexpensive and abundant U.S. coal supply.

None

2012-01-01T23:59:59.000Z

34

Environment assisted electron capture  

E-Print Network [OSTI]

Electron capture by {\\it isolated} atoms and ions proceeds by photorecombination. In this process a species captures a free electron by emitting a photon which carries away the excess energy. It is shown here that in the presence of an {\\it environment} a competing non-radiative electron capture process can take place due to long range electron correlation. In this interatomic (intermolecular) process the excess energy is transferred to neighboring species. The asymptotic expression for the cross section of this process is derived. We demonstrate by explicit examples that under realizable conditions the cross section of this interatomic process can clearly dominate that of photorecombination.

Kirill Gokhberg; Lorenz S. Cederbaum

2009-11-09T23:59:59.000Z

35

Chaos and Tidal Capture  

E-Print Network [OSTI]

We review the tidal capture mechanism for binary formation, an important process in globular cluster cores and perhaps open cluster cores. Tidal capture binaries may be the precursors for some of the low-mass X-ray binaries observed in abundance in globular clusters. They may also play an important role in globular cluster dynamics. We summarize the chaos model for tidal interaction (Mardling 1995, ApJ, 450, 722, 732), and discuss how this affects our understanding of the circularization process which follows capture.

Rosemary A. Mardling

1995-12-07T23:59:59.000Z

36

Political representation Trench warfare  

E-Print Network [OSTI]

Political representation Trench warfare Rational voting Candidate positioning Recap Mathematical vs. statistical models in social science Andrew Gelman Department of Statistics and Department of Political science #12;Political representation Trench warfare Rational voting Candidate positioning Recap Themes

Gelman, Andrew

37

ATK - Supersonic Carbon Capture  

ScienceCinema (OSTI)

ATK and ACEnt Laboratories, with the help of ARPA-E funding, have taken an aerospace problem, supersonic condensation, and turned it into a viable clean energy solution for carbon capture.

Castrogiovanni, Anthony (ACEnT Laboratories, President and CEO); Calayag, Bon (ATK, Program Manager)

2014-04-11T23:59:59.000Z

38

ATK - Supersonic Carbon Capture  

SciTech Connect (OSTI)

ATK and ACEnt Laboratories, with the help of ARPA-E funding, have taken an aerospace problem, supersonic condensation, and turned it into a viable clean energy solution for carbon capture.

Castrogiovanni, Anthony (ACEnT Laboratories, President and CEO) [ACEnT Laboratories, President and CEO; Calayag, Bon (ATK, Program Manager) [ATK, Program Manager

2014-03-05T23:59:59.000Z

39

Motion Capture Technologies Jessica Hodgins  

E-Print Network [OSTI]

a few dof) #12;Production Pipeline #12;What is captured? · Dynamic motions? House of Moves #12;What is captured? · Scale? Motion Analysis #12;What is captured? · Non-rigid objects? House of Moves #12;What is captured? · Props often cause problems ­ Ball in pingpong ­ Fly fishing ­ Sword · Passive behaviors

Treuille, Adrien

40

Muon capture in hydrogen  

E-Print Network [OSTI]

Theoretical difficulties in reconciling the measured rates for ordinary and radiative muon capture are discussed, based on heavy-baryon chiral perturbation theory. We also examine ambiguity in our analysis due to the formation of p$\\mu$p molecules in the liquid hydrogen target.

S. Ando; F. Myhrer; K. Kubodera

2001-10-30T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Carbon Smackdown: Carbon Capture  

SciTech Connect (OSTI)

In this July 9, 2010 Berkeley Lab summer lecture, Lab scientists Jeff Long of the Materials Sciences and Nancy Brown of the Environmental Energy Technologies Division discuss their efforts to fight climate change by capturing carbon from the flue gas of power plants, as well as directly from the air

Jeffrey Long

2010-07-12T23:59:59.000Z

42

Neutron capture therapies  

DOE Patents [OSTI]

In one embodiment there is provided an application of the .sup.10 B(n,.alpha.).sup.7 Li nuclear reaction or other neutron capture reactions for the treatment of rheumatoid arthritis. This application, called Boron Neutron Capture Synovectomy (BNCS), requires substantially altered demands on neutron beam design than for instance treatment of deep seated tumors. Considerations for neutron beam design for the treatment of arthritic joints via BNCS are provided for, and comparisons with the design requirements for Boron Neutron Capture Therapy (BNCT) of tumors are made. In addition, exemplary moderator/reflector assemblies are provided which produce intense, high-quality neutron beams based on (p,n) accelerator-based reactions. In another embodiment there is provided the use of deuteron-based charged particle reactions to be used as sources for epithermal or thermal neutron beams for neutron capture therapies. Many d,n reactions (e.g. using deuterium, tritium or beryllium targets) are very prolific at relatively low deuteron energies.

Yanch, Jacquelyn C. (Cambridge, MA); Shefer, Ruth E. (Newton, MA); Klinkowstein, Robert E. (Winchester, MA)

1999-01-01T23:59:59.000Z

43

Carbon Smackdown: Carbon Capture  

ScienceCinema (OSTI)

In this July 9, 2010 Berkeley Lab summer lecture, Lab scientists Jeff Long of the Materials Sciences and Nancy Brown of the Environmental Energy Technologies Division discuss their efforts to fight climate change by capturing carbon from the flue gas of power plants, as well as directly from the air

Jeffrey Long

2010-09-01T23:59:59.000Z

44

Student Representation System Policy Student Representation System Policy  

E-Print Network [OSTI]

Policy Student Representation System Policy 2013-14 Student Representation System Policy UNIVERSITY OF BIRMINGHAM STUDENT REPRESENTATION SYSTEM POLICY #12;Policy Student Representation System Policy 2013-14 Student Representation System Policy Index of points 1. Introduction 2. Purpose 3. Core Principles 4

Birmingham, University of

45

Muon capture at PSI  

E-Print Network [OSTI]

Measuring the rate of muon capture in hydrogen provides one of the most direct ways to study the axial current of the nucleon. The MuCap experiment uses a negative muon beam stopped in a time projection chamber operated with ultra-pure hydrogen gas. Surrounded by a decay electron detector, the lifetime of muons in hydrogen can be measured to determine the singlet capture rate Lambda_s to a final precision of 1%. The capture rate determines the nucleon's pseudoscalar form factor g_p. A first result, g_p = 7.3 +- 1.1, has been published and the final analysis of the full statistics will reduce the error by a factor of up to 3. Muon capture on the deuteron probes the weak axial current in the two-nucleon system. Within the framework of effective field theories the calculation of such two-nucleon processes involving the axial current requires the knowledge of one additional low energy constant which can be extracted from the doublet capture rate Lambda_d. The same constant then allows to model-independently calculate related processes such as solar pp-fusion or neutrino-deuteron scattering. The MuSun experiment will deduce Lambda_d to better than 1.5%. The experiment uses the MuCap detection setup with a new time projection chamber operated with deuterium at 30K and several hardware upgrades. The system is currently fully commissioned and the main physics data taking will start in 2011.

Peter Winter

2010-12-17T23:59:59.000Z

46

Fluid Flow Simulation in Fractured Reservoirs  

E-Print Network [OSTI]

The purpose of this study is to analyze fluid flow in fractured reservoirs. In most petroleum reservoirs, particularly carbonate reservoirs and some tight sands, natural fractures play a critical role in controlling fluid ...

Sarkar, Sudipta

2002-01-01T23:59:59.000Z

47

Production of Natural Gas and Fluid Flow in Tight Sand Reservoirs  

SciTech Connect (OSTI)

This document reports progress of this research effort in identifying relationships and defining dependencies between macroscopic reservoir parameters strongly affected by microscopic flow dynamics and production well performance in tight gas sand reservoirs. These dependencies are investigated by identifying the main transport mechanisms at the pore scale that should affect fluids flow at the reservoir scale. A critical review of commercial reservoir simulators, used to predict tight sand gas reservoir, revealed that many are poor when used to model fluid flow through tight reservoirs. Conventional simulators ignore altogether or model incorrectly certain phenomena such as, Knudsen diffusion, electro-kinetic effects, ordinary diffusion mechanisms and water vaporization. We studied the effect of Knudsen's number in Klinkenberg's equation and evaluated the effect of different flow regimes on Klinkenberg's parameter b. We developed a model capable of explaining the pressure dependence of this parameter that has been experimentally observed, but not explained in the conventional formalisms. We demonstrated the relevance of this, so far ignored effect, in tight sands reservoir modeling. A 2-D numerical simulator based on equations that capture the above mentioned phenomena was developed. Dynamic implications of new equations are comprehensively discussed in our work and their relative contribution to the flow rate is evaluated. We performed several simulation sensitivity studies that evidenced that, in general terms, our formalism should be implemented in order to get more reliable tight sands gas reservoirs' predictions.

Maria Cecilia Bravo

2006-06-30T23:59:59.000Z

48

Data requirements and acquisition for reservoir characterization  

SciTech Connect (OSTI)

This report outlines the types of data, data sources and measurement tools required for effective reservoir characterization, the data required for specific enhanced oil recovery (EOR) processes, and a discussion on the determination of the optimum data density for reservoir characterization and reservoir modeling. The two basic sources of data for reservoir characterization are data from the specific reservoir and data from analog reservoirs, outcrops, and modern environments. Reservoir data can be divided into three broad categories: (1) rock properties (the container) and (2) fluid properties (the contents) and (3)interaction between reservoir rock and fluid. Both static and dynamic measurements are required.

Jackson, S.; Chang, Ming Ming; Tham, Min.

1993-03-01T23:59:59.000Z

49

ANALYSIS OF PRODUCTION DECLINE IN GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

Petroleum Reservoirs. Geothermal Reservoirs IV. DATA1970, Superheating of Geothermal Steam, Proc. of the U.N.the Development & Utilization of Geothermal Resources, Pisa.

Zais, E.J.; Bodvarsson, G.

2008-01-01T23:59:59.000Z

50

Analysis of Geothermal Reservoir Stimulation using Geomechanics...  

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

Analysis of Geothermal Reservoir Stimulation using Geomechanics-Based Stochastic Analysis of Injection-Induced Seismicity Analysis of Geothermal Reservoir Stimulation using...

51

FRACTURED PETROLEUM RESERVOIRS  

SciTech Connect (OSTI)

The four chapters that are described in this report cover a variety of subjects that not only give insight into the understanding of multiphase flow in fractured porous media, but they provide also major contribution towards the understanding of flow processes with in-situ phase formation. In the following, a summary of all the chapters will be provided. Chapter I addresses issues related to water injection in water-wet fractured porous media. There are two parts in this chapter. Part I covers extensive set of measurements for water injection in water-wet fractured porous media. Both single matrix block and multiple matrix blocks tests are covered. There are two major findings from these experiments: (1) co-current imbibition can be more efficient than counter-current imbibition due to lower residual oil saturation and higher oil mobility, and (2) tight fractured porous media can be more efficient than a permeable porous media when subjected to water injection. These findings are directly related to the type of tests one can perform in the laboratory and to decide on the fate of water injection in fractured reservoirs. Part II of Chapter I presents modeling of water injection in water-wet fractured media by modifying the Buckley-Leverett Theory. A major element of the new model is the multiplication of the transfer flux by the fractured saturation with a power of 1/2. This simple model can account for both co-current and counter-current imbibition and computationally it is very efficient. It can be orders of magnitude faster than a conventional dual-porosity model. Part II also presents the results of water injection tests in very tight rocks of some 0.01 md permeability. Oil recovery from water imbibition tests from such at tight rock can be as high as 25 percent. Chapter II discusses solution gas-drive for cold production from heavy-oil reservoirs. The impetus for this work is the study of new gas phase formation from in-situ process which can be significantly different from that of gas displacement processes. The work is of experimental nature and clarifies several misconceptions in the literature. Based on experimental results, it is established that the main reason for high efficiency of solution gas drive from heavy oil reservoirs is due to low gas mobility. Chapter III presents the concept of the alteration of porous media wettability from liquid-wetting to intermediate gas-wetting. The idea is novel and has not been introduced in the petroleum literature before. There are significant implications from such as proposal. The most direct application of intermediate gas wetting is wettability alteration around the wellbore. Such an alteration can significantly improve well deliverability in gas condensate reservoirs where gas well deliverability decreases below dewpoint pressure. Part I of Chapter III studies the effect of gravity, viscous forces, interfacial tension, and wettability on the critical condensate saturation and relative permeability of gas condensate systems. A simple phenomenological network model is used for this study, The theoretical results reveal that wettability significantly affects both the critical gas saturation and gas relative permeability. Gas relative permeability may increase ten times as contact angle is altered from 0{sup o} (strongly liquid wet) to 85{sup o} (intermediate gas-wetting). The results from the theoretical study motivated the experimental investigation described in Part II. In Part II we demonstrate that the wettability of porous media can be altered from liquid-wetting to gas-wetting. This part describes our attempt to find appropriate chemicals for wettability alteration of various substrates including rock matrix. Chapter IV provides a comprehensive treatment of molecular, pressure, and thermal diffusion and convection in porous media Basic theoretical analysis is presented using irreversible thermodynamics.

Abbas Firoozabadi

1999-06-11T23:59:59.000Z

52

TEXAS A&M UNIVERSITY Reservoir Geophysics Program  

E-Print Network [OSTI]

includes applications to clastic reservoirs, heavy oil reservoirs, gas/oil shale, gas hydrates. Basic

53

Analysis of real-time reservoir monitoring : reservoirs, strategies, & modeling.  

SciTech Connect (OSTI)

The project objective was to detail better ways to assess and exploit intelligent oil and gas field information through improved modeling, sensor technology, and process control to increase ultimate recovery of domestic hydrocarbons. To meet this objective we investigated the use of permanent downhole sensors systems (Smart Wells) whose data is fed real-time into computational reservoir models that are integrated with optimized production control systems. The project utilized a three-pronged approach (1) a value of information analysis to address the economic advantages, (2) reservoir simulation modeling and control optimization to prove the capability, and (3) evaluation of new generation sensor packaging to survive the borehole environment for long periods of time. The Value of Information (VOI) decision tree method was developed and used to assess the economic advantage of using the proposed technology; the VOI demonstrated the increased subsurface resolution through additional sensor data. Our findings show that the VOI studies are a practical means of ascertaining the value associated with a technology, in this case application of sensors to production. The procedure acknowledges the uncertainty in predictions but nevertheless assigns monetary value to the predictions. The best aspect of the procedure is that it builds consensus within interdisciplinary teams The reservoir simulation and modeling aspect of the project was developed to show the capability of exploiting sensor information both for reservoir characterization and to optimize control of the production system. Our findings indicate history matching is improved as more information is added to the objective function, clearly indicating that sensor information can help in reducing the uncertainty associated with reservoir characterization. Additional findings and approaches used are described in detail within the report. The next generation sensors aspect of the project evaluated sensors and packaging survivability issues. Our findings indicate that packaging represents the most significant technical challenge associated with application of sensors in the downhole environment for long periods (5+ years) of time. These issues are described in detail within the report. The impact of successful reservoir monitoring programs and coincident improved reservoir management is measured by the production of additional oil and gas volumes from existing reservoirs, revitalization of nearly depleted reservoirs, possible re-establishment of already abandoned reservoirs, and improved economics for all cases. Smart Well monitoring provides the means to understand how a reservoir process is developing and to provide active reservoir management. At the same time it also provides data for developing high-fidelity simulation models. This work has been a joint effort with Sandia National Laboratories and UT-Austin's Bureau of Economic Geology, Department of Petroleum and Geosystems Engineering, and the Institute of Computational and Engineering Mathematics.

Mani, Seethambal S.; van Bloemen Waanders, Bart Gustaaf; Cooper, Scott Patrick; Jakaboski, Blake Elaine; Normann, Randy Allen; Jennings, Jim (University of Texas at Austin, Austin, TX); Gilbert, Bob (University of Texas at Austin, Austin, TX); Lake, Larry W. (University of Texas at Austin, Austin, TX); Weiss, Chester Joseph; Lorenz, John Clay; Elbring, Gregory Jay; Wheeler, Mary Fanett (University of Texas at Austin, Austin, TX); Thomas, Sunil G. (University of Texas at Austin, Austin, TX); Rightley, Michael J.; Rodriguez, Adolfo (University of Texas at Austin, Austin, TX); Klie, Hector (University of Texas at Austin, Austin, TX); Banchs, Rafael (University of Texas at Austin, Austin, TX); Nunez, Emilio J. (University of Texas at Austin, Austin, TX); Jablonowski, Chris (University of Texas at Austin, Austin, TX)

2006-11-01T23:59:59.000Z

54

An Introduction to CO2 Separation and Capture Technologies Howard Herzog  

E-Print Network [OSTI]

recovery (EOR) operations where CO2 is injected into oil reservoirs to increase the mobility of the oil andAn Introduction to CO2 Separation and Capture Technologies Howard Herzog MIT Energy Laboratory August, 1999 In general, to economically sequester CO2 produced from power plants, one must first produce

55

Research on oil recovery mechanisms in heavy oil reservoirs  

SciTech Connect (OSTI)

The research described here was directed toward improved understanding of thermal and heavy-oil production mechanisms and is categorized into: (1) flow and rock properties, (2) in-situ combustion, (3) additives to improve mobility control, (4) reservoir definition, and (5) support services. The scope of activities extended over a three-year period. Significant work was accomplished in the area of flow properties of steam, water, and oil in consolidated and unconsolidated porous media, transport in fractured porous media, foam generation and flow in homogeneous and heterogeneous porous media, the effects of displacement pattern geometry and mobility ratio on oil recovery, and analytical representation of water influx.

Kovscek, Anthony R.; Brigham, William E., Castanier, Louis M.

2000-03-16T23:59:59.000Z

56

Capturing carbon | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N-Capture of Carbon Dioxide

57

Carbon Capture FAQs  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N-Capture of CarbonLangmuircarbon

58

Hermeneutics, Information and Representation  

E-Print Network [OSTI]

Hermeneutics, Information and Representation Matthew Chalmers Computing Science, Glasgow University, United Kingdom Abstract By drawing from semiology, epistemology and philosophical hermeneutics, we for computer­supported collaborative work (CSCW). We point out similarities between discourse in hermeneutics

Chalmers, Matthew

59

How Carbon Capture Works | Department of Energy  

Energy Savers [EERE]

past two decades. Carbon capture, utilization and storage (CCUS) -- also referred to as carbon capture, utilization and sequestration -- is a process that captures carbon dioxide...

60

Chickamauga reservoir embayment study - 1990  

SciTech Connect (OSTI)

The objectives of this report are three-fold: (1) assess physical, chemical, and biological conditions in the major embayments of Chickamauga Reservoir; (2) compare water quality and biological conditions of embayments with main river locations; and (3) identify any water quality concerns in the study embayments that may warrant further investigation and/or management actions. Embayments are important areas of reservoirs to be considered when assessments are made to support water quality management plans. In general, embayments, because of their smaller size (water surface areas usually less than 1000 acres), shallower morphometry (average depth usually less than 10 feet), and longer detention times (frequently a month or more), exhibit more extreme responses to pollutant loadings and changes in land use than the main river region of the reservoir. Consequently, embayments are often at greater risk of water quality impairments (e.g. nutrient enrichment, filling and siltation, excessive growths of aquatic plants, algal blooms, low dissolved oxygen concentrations, bacteriological contamination, etc.). Much of the secondary beneficial use of reservoirs occurs in embayments (viz. marinas, recreation areas, parks and beaches, residential development, etc.). Typically embayments comprise less than 20 percent of the surface area of a reservoir, but they often receive 50 percent or more of the water-oriented recreational use of the reservoir. This intensive recreational use creates a potential for adverse use impacts if poor water quality and aquatic conditions exist in an embayment.

Meinert, D.L.; Butkus, S.R.; McDonough, T.A.

1992-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Motion capture och skräck; Motion capture and horror.  

E-Print Network [OSTI]

?? Det här arbetet syftade till att undersöka om de skakningar och ryck som uppstår vid en dålig motion capture-inspelning, kan användas till fördel i… (more)

Åsén, Kristina Helene

2014-01-01T23:59:59.000Z

62

Fragment capture device  

DOE Patents [OSTI]

A fragment capture device for use in explosive containment. The device comprises an assembly of at least two rows of bars positioned to eliminate line-of-sight trajectories between the generation point of fragments and a surrounding containment vessel or asset. The device comprises an array of at least two rows of bars, wherein each row is staggered with respect to the adjacent row, and wherein a lateral dimension of each bar and a relative position of each bar in combination provides blockage of a straight-line passage of a solid fragment through the adjacent rows of bars, wherein a generation point of the solid fragment is located within a cavity at least partially enclosed by the array of bars.

Payne, Lloyd R. (Los Lunas, NM); Cole, David L. (Albuquerque, NM)

2010-03-30T23:59:59.000Z

63

Robust automated knowledge capture.  

SciTech Connect (OSTI)

This report summarizes research conducted through the Sandia National Laboratories Robust Automated Knowledge Capture Laboratory Directed Research and Development project. The objective of this project was to advance scientific understanding of the influence of individual cognitive attributes on decision making. The project has developed a quantitative model known as RumRunner that has proven effective in predicting the propensity of an individual to shift strategies on the basis of task and experience related parameters. Three separate studies are described which have validated the basic RumRunner model. This work provides a basis for better understanding human decision making in high consequent national security applications, and in particular, the individual characteristics that underlie adaptive thinking.

Stevens-Adams, Susan Marie; Abbott, Robert G.; Forsythe, James Chris; Trumbo, Michael Christopher Stefan; Haass, Michael Joseph; Hendrickson, Stacey M. Langfitt

2011-10-01T23:59:59.000Z

64

Application of Integrated Reservoir Management and Reservoir Characterization to Optimize Infill Drilling  

SciTech Connect (OSTI)

Initial drilling of wells on a uniform spacing, without regard to reservoir performance and characterization, must become a process of the past. Such efforts do not optimize reservoir development as they fail to account for the complex nature of reservoir heterogeneities present in many low permeability reservoirs, and carbonate reservoirs in particular. These reservoirs are typically characterized by: o Large, discontinuous pay intervals o Vertical and lateral changes in reservoir properties o Low reservoir energy o High residual oil saturation o Low recovery efficiency

P. K. Pande

1998-10-29T23:59:59.000Z

65

The capture into parametric autoresonance  

E-Print Network [OSTI]

In this work we show that the capture into parametric resonance may be explained as the pitchfork bifurcation in the primary parametric resonance equation. We prove that the solution close to the moment of the capture is described by the Painleve-2 equation. We obtain the connection formulas for the asymptotic solution of the primary parametric resonance equation before and after the capture using the matching of the asymptotic expansions.

O M Kiselev; S G Glebov

2005-11-04T23:59:59.000Z

66

A STOCHASTIC METHOD FOR MODELING FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS  

E-Print Network [OSTI]

FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andFLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andachieve optimal recovery of petroleum from a reservoir, it

Anderson, C.

2011-01-01T23:59:59.000Z

67

STATUS OF GEOTHERMAL RESERVOIR ENGINEERING MANAGEMENT PROGRAM ("GREMP") -DECEMBER, 1979  

E-Print Network [OSTI]

the characteristics of a geothermal reservoir: Items 2, 6,new data important to geothermal reservoir engineering prac-forecast performance of the geothermal reservoir and bore

Howard, J. H.

2012-01-01T23:59:59.000Z

68

Resource capture by single leaves  

SciTech Connect (OSTI)

Leaves show a variety of strategies for maximizing CO{sub 2} and light capture. These are more meaningfully explained if they are considered in the context of maximizing capture relative to the utilization of water, nutrients and carbohydrates reserves. There is considerable variation between crops in their efficiency of CO{sub 2} and light capture at the leaf level. Understanding of these mechanisms indicate some ways in which efficiency of resource capture could be level cannot be meaningfully considered without simultaneous understanding of implications at the canopy level. 36 refs., 5 figs., 1 tab.

Long, S.P.

1992-05-01T23:59:59.000Z

69

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

70

The Carpenteria reservoir redevelopment project  

SciTech Connect (OSTI)

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The objective of this project was to develop a simulation-based reservoir management system that could be used to guide the redevelopment of the Carpenteria Offshore Field, which is located just seven miles from Santa Barbara. The system supports geostatistical and geological modeling and reservoir forecasting. Moreover, it is also a shared resource between the field operator, Pacific Operators Offshore, and the mineral owners, the U.S. Department of the Interior and the State of California.

Kendall, R.P.; Whitney, E.M.; Krogh, K.E. [Los Alamos National Lab., NM (United States); Coombs, S. [Pacific Operators Offshore, Inc., Carpinteria, CA (United States); Paul, R.G. [Dept. of the Interior (United States); Voskanian, M.M. [California State Lands Commission, Sacramento, CA (United States); Ershaghi, I. [University of Southern California, Los Angeles, CA (United States)

1997-08-01T23:59:59.000Z

71

Modeling well performance in compartmentalized gas reservoirs  

E-Print Network [OSTI]

Predicting the performance of wells in compartmentalized reservoirs can be quite challenging to most conventional reservoir engineering tools. The purpose of this research is to develop a Compartmentalized Gas Depletion Model that applies not only...

Yusuf, Nurudeen

2008-10-10T23:59:59.000Z

72

Modeling well performance in compartmentalized gas reservoirs  

E-Print Network [OSTI]

Predicting the performance of wells in compartmentalized reservoirs can be quite challenging to most conventional reservoir engineering tools. The purpose of this research is to develop a Compartmentalized Gas Depletion Model that applies not only...

Yusuf, Nurudeen

2009-05-15T23:59:59.000Z

73

Optimizing injected solvent fraction in stratified reservoirs  

E-Print Network [OSTI]

Waterflooding has become standard practice for extending the productive life of many solution gas drive reservoirs, but has the disadvantage of leaving a substantial residual oil volume in the reservoir. Solvent flooding has been offered as a...

Moon, Gary Michael

1993-01-01T23:59:59.000Z

74

Comparative Evaluation of Generalized River/Reservoir System Models  

E-Print Network [OSTI]

This report reviews user-oriented generalized reservoir/river system models. The terms reservoir/river system, reservoir system, reservoir operation, or river basin management "model" or "modeling system" are used synonymously to refer to computer...

Wurbs, Ralph A.

75

Optimization Online - Managing Hydroelectric Reservoirs over an ...  

E-Print Network [OSTI]

Jul 7, 2013 ... Managing Hydroelectric Reservoirs over an Extended Planning Horizon using a Benders Decomposition Algorithm Exploiting a Memory Loss ...

Pierre-Luc Carpentier

2013-07-07T23:59:59.000Z

76

HIGH TEMPERATURE GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

on the Cerro P r i e t o Geothermal F i e l d , Mexicali,e C e r r o P r i e t o Geothermal F i e l d , Baja C a l i1979 HIGH TEMPERATURE GEOTHERMAL RESERVOIR ENGINEERING R.

Schroeder, R.C.

2009-01-01T23:59:59.000Z

77

PART IV ? REPRESENTATIONS AND INSTRUCTIONS  

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

... 1 K-2 FAR 52.209-2 PROHIBITION ON CONTRACTING WITH INVERTED DOMESTIC CORPORATIONS--REPRESENTATION (JUL 2009)...

78

PART IV ? REPRESENTATIONS AND INSTRUCTIONS  

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

... 1 K-2 FAR 52.209-2 PROHIBITION ON CONTRACTING WITH INVERTED DOMESTIC CORPORATIONS--REPRESENTATION (MAY 2011)...

79

Hydroelectric Reservoirs -the Carbon Dioxide and Methane  

E-Print Network [OSTI]

Hydroelectric Reservoirs - the Carbon Dioxide and Methane Emissions of a "Carbon Free" Energy an overview on the greenhouse gas production of hydroelectric reservoirs. The goals are to point out the main how big the greenhouse gas emissions from hydroelectric reservoirs are compared to thermo-power plants

Fischlin, Andreas

80

Tenth workshop on geothermal reservoir engineering: proceedings  

SciTech Connect (OSTI)

The workshop contains presentations in the following areas: (1) reservoir engineering research; (2) field development; (3) vapor-dominated systems; (4) the Geysers thermal area; (5) well test analysis; (6) production engineering; (7) reservoir evaluation; (8) geochemistry and injection; (9) numerical simulation; and (10) reservoir physics. (ACR)

Not Available

1985-01-22T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES  

E-Print Network [OSTI]

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCES Paul Kruger and Henry J . Ramey, Jr . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 THE GEOTHERMAL CHIMNEY MODEL . . . . . . . . . . . . . . . . . . . 3 Current Design of t h e . . . . . . . . . . . . . . . 67 Geothermal Reservoir Phy.Sica1 PIodels . . . . . . . . . . . . 73 RAD3N I N GEOTHERMAL RESERVOIRS

Stanford University

82

Increasing Waterflooding Reservoirs in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management, Class III  

SciTech Connect (OSTI)

This project was intended to increase recoverable waterflood reserves in slope and basin reservoirs through improved reservoir characterization and reservoir management. The particular application of this project is in portions of Fault Blocks IV and V of the Wilmington Oil Field, in Long Beach, California, but the approach is widely applicable in slope and basin reservoirs, transferring technology so that it can be applied in other sections of the Wilmington field and by operators in other slope and basin reservoirs is a primary component of the project.

Koerner, Roy; Clarke, Don; Walker, Scott; Phillips, Chris; Nguyen, John; Moos, Dan; Tagbor, Kwasi

2001-08-07T23:59:59.000Z

83

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 31 -February 2, 2011  

E-Print Network [OSTI]

-WATER INJECTION INTO GEOTHERMAL RESERVOIRS: GEOTHERMAL ENERGY COMBINED WITH CO2 STORAGE Hamidreza Salimi of the geothermal system. In this way, synergy is established between geothermal energy production and subsurface CO) with geothermal energy. A further reduction could be achieved by capturing the remaining emitted CO2

Stanford University

84

The role of reservoir characterization in the reservoir management process (as reflected in the Department of Energy`s reservoir management demonstration program)  

SciTech Connect (OSTI)

Optimum reservoir recovery and profitability result from guidance of reservoir practices provided by an effective reservoir management plan. Success in developing the best, most appropriate reservoir management plan requires knowledge and consideration of (1) the reservoir system including rocks, and rock-fluid interactions (i.e., a characterization of the reservoir) as well as wellbores and associated equipment and surface facilities; (2) the technologies available to describe, analyze, and exploit the reservoir; and (3) the business environment under which the plan will be developed and implemented. Reservoir characterization is the essential to gain needed knowledge of the reservoir for reservoir management plan building. Reservoir characterization efforts can be appropriately scaled by considering the reservoir management context under which the plan is being built. Reservoir management plans de-optimize with time as technology and the business environment change or as new reservoir information indicates the reservoir characterization models on which the current plan is based are inadequate. BDM-Oklahoma and the Department of Energy have implemented a program of reservoir management demonstrations to encourage operators with limited resources and experience to learn, implement, and disperse sound reservoir management techniques through cooperative research and development projects whose objectives are to develop reservoir management plans. In each of the three projects currently underway, careful attention to reservoir management context assures a reservoir characterization approach that is sufficient, but not in excess of what is necessary, to devise and implement an effective reservoir management plan.

Fowler, M.L. [BDM-Petroleum Technologies, Bartlesville, OK (United States); Young, M.A.; Madden, M.P. [BDM-Oklahoma, Bartlesville, OK (United States)] [and others

1997-08-01T23:59:59.000Z

85

Naturally fractured tight gas reservoir detection optimization. Final report  

SciTech Connect (OSTI)

This DOE-funded research into seismic detection of natural fractures is one of six projects within the DOE`s Detection and Analysis of Naturally Fractured Gas Reservoirs Program, a multidisciplinary research initiative to develop technology for prediction, detection, and mapping of naturally fractured gas reservoirs. The demonstration of successful seismic techniques to locate subsurface zones of high fracture density and to guide drilling orientation for enhanced fracture permeability will enable better returns on investments in the development of the vast gas reserves held in tight formations beneath the Rocky Mountains. The seismic techniques used in this project were designed to capture the azimuthal anisotropy within the seismic response. This seismic anisotropy is the result of the symmetry in the rock fabric created by aligned fractures and/or unequal horizontal stresses. These results may be compared and related to other lines of evidence to provide cross-validation. The authors undertook investigations along the following lines: Characterization of the seismic anisotropy in three-dimensional, P-wave seismic data; Characterization of the seismic anisotropy in a nine-component (P- and S-sources, three-component receivers) vertical seismic profile; Characterization of the seismic anisotropy in three-dimensional, P-to-S converted wave seismic data (P-wave source, three-component receivers); and Description of geological and reservoir-engineering data that corroborate the anisotropy: natural fractures observed at the target level and at the surface, estimation of the maximum horizontal stress in situ, and examination of the flow characteristics of the reservoir.

NONE

1997-11-19T23:59:59.000Z

86

4. International reservoir characterization technical conference  

SciTech Connect (OSTI)

This volume contains the Proceedings of the Fourth International Reservoir Characterization Technical Conference held March 2-4, 1997 in Houston, Texas. The theme for the conference was Advances in Reservoir Characterization for Effective Reservoir Management. On March 2, 1997, the DOE Class Workshop kicked off with tutorials by Dr. Steve Begg (BP Exploration) and Dr. Ganesh Thakur (Chevron). Tutorial presentations are not included in these Proceedings but may be available from the authors. The conference consisted of the following topics: data acquisition; reservoir modeling; scaling reservoir properties; and managing uncertainty. Selected papers have been processed separately for inclusion in the Energy Science and Technology database.

NONE

1997-04-01T23:59:59.000Z

87

Small Representation Principle  

E-Print Network [OSTI]

In a previous article Don Bennett and I looked for, found and proposed a game in which the Standard Model Gauge Group $S(U(2) \\times U(3))$ gets singled out as the "winner". This "game" means that the by Nature chosen gauge group should be just that one, which has the maximal value for a quantity, which is a modification of the ratio of the quadratic Casimir for the adjoint representation and that for a "smallest" faithful representation. In a recent article I proposed to extend this "game" to construct a corresponding game between different potential dimensions for space-time. The idea is to formulate, how the same competition as the one between the potential gauge groups would run out, if restricted to the potential Lorentz or Poincare groups achievable for different dimensions of space-time $d$. The remarkable point is, that it is the experimental space-time dimension 4, which wins. It follows that the whole Standard Model is specified by requiring SMALLEST REPRESENTATIONS! Speculatively we even argue that our principle found suggests the group of gauge transformations and some manifold(suggestive of say general relativity).

H. B. F. Nielsen

2014-03-06T23:59:59.000Z

88

Knowledge Capture and Transfer Program  

Broader source: Energy.gov [DOE]

The Office of Learning and Workforce Development is working with Heads of Departmental Elements, DOE senior leaders and subject-matter-experts to capture and transfer the knowledge and experiences...

89

Factors affecting water quality in Cherokee Reservoir  

SciTech Connect (OSTI)

The purpose was to: (1) define reservoir problems related to water quality conditions; (2) identify the probable causes of these problems; and (3) recommend procedures for achieving needed reservoir water quality improvements. This report presents the project findings to date and suggests steps for upgrading the quality of Cherokee Reservoir. Section II presents background information on the characteristics of the basin, the reservoir, and the beneficial uses of the reservoir. Section III identifies the impacts of existing reservoir water quality on uses of the reservoir for water supply, fishery resources, recreation, and waste assimilation. Section IV presents an assessment of cause-effect relationships. The factors affecting water quality addressed in Section IV are: (1) reservoir thermal stratification and hydrodynamics; (2) dissolved oxygen depletion; (3) eutrophication; (4) toxic substances; and (5) reservoir fisheries. Section V presents a preliminary evaluation of alternatives for improving the quality of Cherokee Reservoir. Section VI presents preliminary conclusions and recommendations for developing and implementing a reservoir water quality management plan. 7 references, 22 figures, 21 tables.

Iwanski, M.L.; Higgins, J.M.; Kim, B.R.; Young, R.C.

1980-07-01T23:59:59.000Z

90

Recoilless Resonant Capture of Antineutrinos  

E-Print Network [OSTI]

Resonant capture of antineutrinos can be accomplished by exploiting the monoenergetic antineutrinos emitted in bound state beta-decay. Extending this idea, I explore conditions for recoilless resonant capture in the system 3H - 3He. Observation of such transitions can set the stage for placing stringent limits on the neutrino parameter theta-13 on an ultra-short baseline of ~9 m and for observing the gravitational red shift of neutrinos

R. S. Raghavan

2005-11-15T23:59:59.000Z

91

Prospects for Improved Carbon Capture Technology  

E-Print Network [OSTI]

Prospects for Improved Carbon Capture Technology Report to the Congressional Research Service Capture Technology i Table of Contents CHAPTER 1. EXECUTIVE SUMMARY ................................................................................................................ 7 CHAPTER 3. OVERVIEW OF CO2 CAPTURE TECHNOLOGIES

92

Supercomputers Capture Turbulence in the Solar Wind  

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

Capture Turbulence in the Solar Wind Supercomputers Capture Turbulence in the Solar Wind Berkeley Lab visualizations could help scientists forecast destructive space weather...

93

Capture and Access of Multiple Screen Presentations.  

E-Print Network [OSTI]

??Knowledge transferred during meetings is often ephemeral in nature and thus must be captured if it is to be retained. Ideally, a capture solution should… (more)

Cutler, Kelv H.

2010-01-01T23:59:59.000Z

94

Speeding Up Zeolite Evaluation for Carbon Capture  

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

Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

95

Virtual Test Environment for Motion Capture Shoots.  

E-Print Network [OSTI]

?? This master thesis presents the design of an implementation of a working prototype for an augmented motion capture acting environment. Motion capture (MoCap), the… (more)

Redavid, Claudio

2012-01-01T23:59:59.000Z

96

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method is described for extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid inventory of the reservoir. 4 figs.

Brown, D.W.

1997-11-11T23:59:59.000Z

97

Reservoir monitoring: 1990 summary of vital signs and use impairment monitoring on Tennessee Valley Reservoirs  

SciTech Connect (OSTI)

The Tennessee Valley Authority (TVA) initiated a Reservoir Monitoring Program on 12 TVA reservoirs (the nine main stream Tennessee river reservoirs -- Kentucky through Fort Loudoun and three major tributary storage reservoirs -- Cherokee, Douglas, and Norris) in autumn 1989. The objective of the Reservoir Monitoring Program is to provide basic information on the ``health`` or integrity of the aquatic ecosystem in each TVA reservoir (``Vital Signs``) and to provide screening level information for describing how well each reservoir meets the swimmable and fishable goals of the Clean Water Act (Use Impairments). This is the first time in the history of the agency that a commitment to a long-term, systematic sampling of major TVA reservoirs has been made. The basis of the Vital Signs Monitoring is examination of appropriate physical, chemical, and biological indicators in three areas of each reservoir. These three areas are the forebay immediately upstream of the dam; the transition zone (the mid-reservoir region where the water changes from free flowing to more quiescent, impounded water); and the inflow or headwater region of the reservoir. The Use Impairments monitoring provides screening level information on the suitability of selected areas within TVA reservoirs for water contact activities (swimmable) and suitability of fish from TVA reservoirs for human consumption (fishable).

Dycus, D.L.; Meinert, D.L.

1991-08-01T23:59:59.000Z

98

Reservoir monitoring: 1990 summary of vital signs and use impairment monitoring on Tennessee Valley Reservoirs  

SciTech Connect (OSTI)

The Tennessee Valley Authority (TVA) initiated a Reservoir Monitoring Program on 12 TVA reservoirs (the nine main stream Tennessee river reservoirs -- Kentucky through Fort Loudoun and three major tributary storage reservoirs -- Cherokee, Douglas, and Norris) in autumn 1989. The objective of the Reservoir Monitoring Program is to provide basic information on the health'' or integrity of the aquatic ecosystem in each TVA reservoir ( Vital Signs'') and to provide screening level information for describing how well each reservoir meets the swimmable and fishable goals of the Clean Water Act (Use Impairments). This is the first time in the history of the agency that a commitment to a long-term, systematic sampling of major TVA reservoirs has been made. The basis of the Vital Signs Monitoring is examination of appropriate physical, chemical, and biological indicators in three areas of each reservoir. These three areas are the forebay immediately upstream of the dam; the transition zone (the mid-reservoir region where the water changes from free flowing to more quiescent, impounded water); and the inflow or headwater region of the reservoir. The Use Impairments monitoring provides screening level information on the suitability of selected areas within TVA reservoirs for water contact activities (swimmable) and suitability of fish from TVA reservoirs for human consumption (fishable).

Dycus, D.L.; Meinert, D.L.

1991-08-01T23:59:59.000Z

99

Seismic signatures of the Lodgepole fractured reservoir in Utah-Wyoming overthrust belt  

SciTech Connect (OSTI)

In low porosity, low permeability zones, natural fractures are the primary source of permeability which affect both production and injection of fluids. The open fractures do not contribute much to porosity, but they provide an increased drainage network to any porosity. An important approach to characterizing the fracture orientation and fracture permeability of reservoir formations is one based upon the effects of such conditions on the propagation of acoustic and seismic waves in the rock. We present the feasibility of using seismic measurement techniques to map the fracture zones between wells spaced 2400 ft at depths of about 1000 ft. For this purpose we constructed computer models (which include azimuthal anisotropy) using Lodgepole reservoir parameters to predict seismic signatures recorded at the borehole scale, crosswell scale, and 3 D seismic scale. We have integrated well logs with existing 2D surfaces seismic to produce petrophysical and geological cross sections to determine the reservoir parameters and geometry for the computer models. In particular, the model responses are used to evaluate if surface seismic and crosswell seismic measurements can capture the anisotropy due to vertical fractures. Preliminary results suggested that seismic waves transmitted between two wells will propagate in carbonate fracture reservoirs, and the signal can be received above the noise level at the distance of 2400 ft. In addition, the large velocities contrast between the main fracture zone and the underlying unfractured Boundary Ridge Member, suggested that borehole reflection imaging may be appropriate to map and fracture zone thickness variation and fracture distributions in the reservoir.

Parra, J.; Collier, H.; Angstman, B.

1997-08-01T23:59:59.000Z

100

Hydraulic fracturing in a naturally fractured reservoir  

SciTech Connect (OSTI)

Hydraulic fracturing of wells in naturally fractured reservoirs can differ dramatically from fracturing wells in conventional isotropic reservoirs. Fluid leakoff is the primary difference. In conventional reservoirs, fluid leakoff is controlled by reservoir matrix and fracture fluid parameters. The fluid leakoff rate in naturally fractured reservoirs is typically excessive and completely dominated by the natural fractures. This paper presents several field examples of a fracture stimulation program performed on the naturally fractured Devonia carbonate of West Texas. Qualitative pressure decline analysis and net treating pressure interpretation techniques were utilized to evaluate the existence of natural fractures in the Devonian Formation. Quantitative techniques were utilized to assess the importance of the natural fractures to the fracturing process. This paper demonstrates that bottomhole pressure monitoring of fracture stimulations has benefits over conducting minifrac treatments in naturally fractured reservoirs. Finally, the results of this evaluation were used to redesign fracture treatments to ensure maximum productivity and minimize costs.

Britt, L.K.; Hager, C.J.; Thompson, J.W.

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Feasibility of Air Capture Manya Ranjan  

E-Print Network [OSTI]

benefits of air capture, reported in literature, are that it allows us to reduce the atmospheric carbon process to capture CO2 and biomass coupled with carbon capture and sequestration, which utilizes coupled with carbon capture and sequestration looks more promising from a cost perspective. This work puts

102

A virtual company concept for reservoir management  

SciTech Connect (OSTI)

This paper describes how reservoir management problems were pursued with a virtual company concept via the Internet and World Wide Web. The focus of the paper is on the implementation of virtual asset management teams that were assembled with small independent oil companies. The paper highlights the mechanics of how the virtual team transferred data and interpretations, evaluated geological models of complex reservoirs, and used results of simulation studies to analyze various reservoir management strategies.

Martin, F.D. [Dave Martin and Associates, Inc. (United States); Kendall, R.P.; Whitney, E.M. [Los Alamos National Lab., NM (United States)

1998-12-31T23:59:59.000Z

103

Quantum discord dynamics in structured reservoirs  

E-Print Network [OSTI]

The non-Markovian master equations are derived to study quantum discord dynamics of two qubits coupled to a common reservoir and two independent reservoirs, respectively. We compare the dynamics under different parameters, such as reservoir spectra and resonant parameters, at high temperature and at zero temperature. The results indicate that the dynamics at these two extreme temperatures share similar characters, as well as differences.

Z. -K. Su; S. -J. Jiang

2011-05-25T23:59:59.000Z

104

Improved energy recovery from geothermal reservoirs  

SciTech Connect (OSTI)

The behavior of a liquid-dominated geothermal reservoir in response to production from different horizons is studied using numerical simulation methods. The Olkaria geothermal field in Kenya is used as an example where a two-phase vapor-dominated zone overlies the main liquid-dominated reservoir. The possibility of improving energy recovery from vapor-dominated reservoirs by tapping deeper horizons is considered.

Bodvarsson, G.S.; Pruess, K.; Lippmann, M.J.

1981-01-01T23:59:59.000Z

105

Integrated reservoir study of the 8 reservoir of the Green Canyon 18 field  

E-Print Network [OSTI]

The move into deeper waters in the Gulf of Mexico has produced new opportunities for petroleum production, but it also has produced new challenges as different reservoir problems are encountered. This integrated reservoir characterization effort has...

Aniekwena, Anthony Udegbunam

2004-11-15T23:59:59.000Z

106

Carbon Capture Research and Development  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N-Capture ofCapture CONTACT Bryan

107

The National Carbon Capture Center  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformation In closing, an National Carbon Capture Center at theDarkCarbon Capture

108

RESEARCH OIL RECOVERY MECHANISMS IN HEAVY OIL RESERVOIRS  

SciTech Connect (OSTI)

The United States continues to rely heavily on petroleum fossil fuels as a primary energy source, while domestic reserves dwindle. However, so-called heavy oil (10 to 20{sup o}API) remains an underutilized resource of tremendous potential. Heavy oils are much more viscous than conventional oils. As a result, they are difficult to produce with conventional recovery methods such as pressure depletion and water injection. Thermal recovery is especially important for this class of reservoirs because adding heat, usually via steam injection, generally reduces oil viscosity dramatically. This improves displacement efficiency. The research described here was directed toward improved understanding of thermal and heavy-oil production mechanisms and is categorized into: (1) flow and rock properties; (2) in-situ combustion; (3) additives to improve mobility control; (4) reservoir definition; and (5) support services. The scope of activities extended over a three-year period. Significant work was accomplished in the area of flow properties of steam, water, and oil in consolidated and unconsolidated porous media, transport in fractured porous media, foam generation and flow in homogeneous and heterogeneous porous media, the effects of displacement pattern geometry and mobility ratio on oil recovery, and analytical representation of water influx. Significant results are described.

Anthony R. Kovscek; William E. Brigham

1999-06-01T23:59:59.000Z

109

Geothermal: Sponsored by OSTI -- Reservoir Pressure Management  

Office of Scientific and Technical Information (OSTI)

Reservoir Pressure Management Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications Advanced Search New Hot...

110

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

i s maintain reservoir pressu found t o be f a i r l yPrieto. , Correlation of pressu temperature trends w i t h

Sudo!, G.A

2012-01-01T23:59:59.000Z

111

Mapping Diffuse Seismicity for Geothermal Reservoir Management...  

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

Templeton David B. Harris Lawrence Livermore Natl. Lab. Seismicity and Reservoir Fracture Characterization May 18, 2010 This presentation does not contain any proprietary...

112

Modeling of Geothermal Reservoirs: Fundamental Processes, Computer...  

Open Energy Info (EERE)

Reservoirs: Fundamental Processes, Computer Simulation and Field Applications Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Modeling of...

113

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

on Geothermal Resource Assessment and Reservoir EngineeriWorkshop on Geothermal Resources Assessment and ReserooirWorkshop on Geothermal Resources Assessment an ervoi r Engi

Sudo!, G.A

2012-01-01T23:59:59.000Z

114

Evaluation Of Chemical Geothermometers For Calculating Reservoir...  

Open Energy Info (EERE)

Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power Plants Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper:...

115

Safety of Dams and Reservoirs Act (Nebraska)  

Broader source: Energy.gov [DOE]

This act regulates dams and associated reservoirs to protect health and public safety and minimize adverse consequences associated with potential dam failure. The act describes the responsibilities...

116

International reservoir operations agreement helps NW fish &...  

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

or 503-230-5131 International reservoir operations agreement helps Northwest fish and power Portland, Ore. - The Bonneville Power Administration and the British Columbia...

117

Analysis of Geothermal Reservoir Stimulation using Geomechanics...  

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

Geothermal Reservoir Stimulation using Geomechanics-Based Stochastic Analysis of Injection-Induced Seismicity Principal Investigator: Ahmad Ghassmi Texas A&M University EGS...

118

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method of extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid

Brown, Donald W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

119

Reservoir Engineering for Unconventional Gas Reservoirs: What Do We Have to Consider?  

SciTech Connect (OSTI)

The reservoir engineer involved in the development of unconventional gas reservoirs (UGRs) is required to integrate a vast amount of data from disparate sources, and to be familiar with the data collection and assessment. There has been a rapid evolution of technology used to characterize UGR reservoir and hydraulic fracture properties, and there currently are few standardized procedures to be used as guidance. Therefore, more than ever, the reservoir engineer is required to question data sources and have an intimate knowledge of evaluation procedures. We propose a workflow for the optimization of UGR field development to guide discussion of the reservoir engineer's role in the process. Critical issues related to reservoir sample and log analysis, rate-transient and production data analysis, hydraulic and reservoir modeling and economic analysis are raised. Further, we have provided illustrations of each step of the workflow using tight gas examples. Our intent is to provide some guidance for best practices. In addition to reviewing existing methods for reservoir characterization, we introduce new methods for measuring pore size distribution (small-angle neutron scattering), evaluating core-scale heterogeneity, log-core calibration, evaluating core/log data trends to assist with scale-up of core data, and modeling flow-back of reservoir fluids immediately after well stimulation. Our focus in this manuscript is on tight and shale gas reservoirs; reservoir characterization methods for coalbed methane reservoirs have recently been discussed.

Clarkson, Christopher R [ORNL

2011-01-01T23:59:59.000Z

120

Reduced Harmonic Representation of Partitions  

E-Print Network [OSTI]

In the present article the reduced integral representation of partitions in terms of harmonic products has been derived first by using hypergeometry and the new concept of fractional sum and secondly by studying the Fourier series of the kernel function appearing in the integral representation. Using the method of induction, a generalization of the theory has also been obtained.

Michalis Psimopoulos

2011-03-08T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Integrated Reservoir Characterization: Offshore Louisiana, Grand Isle Blocks 32 & 33  

E-Print Network [OSTI]

and include the upper (PM), middle (QH), and lower (RD) sands. The reservoir models address the stratigraphy of the upper (PM) sand and help delineate the lower (RD) reservoir. In addition, this research addresses the partially depleted QH-2 reservoir...

Casey, Michael Chase

2011-08-08T23:59:59.000Z

122

Reservoir characterization using experimental design and response surface methodology  

E-Print Network [OSTI]

This research combines a statistical tool called experimental design/response surface methodology with reservoir modeling and flow simulation for the purpose of reservoir characterization. Very often, it requires large number of reservoir simulation...

Parikh, Harshal

2004-09-30T23:59:59.000Z

123

Monitoring EGS Stimulation and Reservoir Dynamics with InSAR...  

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

Monitoring EGS Stimulation and Reservoir Dynamics with InSAR and MEQ Monitoring EGS Stimulation and Reservoir Dynamics with InSAR and MEQ Monitoring EGS Stimulation and Reservoir...

124

Integrated reservoir characterization for the Mazari oil field, Pakistan  

E-Print Network [OSTI]

evaluated reservoir performance potential using the production history, well tests and cased-hole well log surveys. Suggestions for reservoir management activities in conjunction with the evaluation of the reservoir performance are discussed in detail...

Ashraf, Ejaz

1994-01-01T23:59:59.000Z

125

Increasing Waterflood Reserves in the Wilmington Oil Field Through Reservoir Characterization and Reservoir Management  

SciTech Connect (OSTI)

This project is intended to increase recoverable waterflood reserves in slope and basin reservoirs through improved reservoir characterization and reservoir management. The particular application of this project is in portions of Fault Blocks IV and V of the Wilmington Oil Field, in Long Beach, California, but the approach is widely applicable in slope and basin reservoirs. Transferring technology so that it can be applied in other sections of the Wilmington Field and by operators in other slope and basin reservoirs is a primary component of the project.

Chris Phillips; Dan Moos; Don Clarke; John Nguyen; Kwasi Tagbor; Roy Koerner; Scott Walker

1997-04-10T23:59:59.000Z

126

Water quality management plan for Cherokee Reservoir  

SciTech Connect (OSTI)

The management plan provides an assessment of Cherokee Reservoir's current water quality, identifies those factors which affect reservoir water quality, and develops recommendations aimed at restoring or maintaining water quality at levels sufficient to support diverse beneficial uses. 20 references, 8 figures, 15 tables. (ACR)

Not Available

1984-01-01T23:59:59.000Z

127

Economics of Developing Hot Stratigraphic Reservoirs  

SciTech Connect (OSTI)

Stratigraphic geothermal reservoirs at 3 – 4 km depth in high heat-flow basins are capable of sustaining 100 MW-scale power plants at about 10 c/kWh. This paper examines the impacts on the levelized cost of electricity (LCOE) of reservoir depth and temperature, reservoir productivity, and drillhole/casing options. For a reservoir at 3 km depth with a moderate productivity index by hydrothermal reservoir standards (about 50 L/s/MPa, 5.6 gpm/psi), an LCOE of 10c/kWh requires the reservoir to be at about 200°C. This is the upper temperature limit for pumps. The calculations assume standard hydrothermal drilling costs, with the production interval completed with a 7 inch liner in an 8.5 inch hole. If a reservoir at 4 km depth has excellent permeability characteristics with a productivity index of 100 L/s/MPa (11.3 gpm/psi), then the LCOE is about 11 c/kWh assuming the temperature decline rate with development is not excessive (< 1%/y, with first thermal breakthrough delayed by about 10 years). Completing wells with modest horizontal legs (e.g. several hundred meters) may be important for improving well productivity because of the naturally high, sub-horizontal permeability in this type of reservoir. Reducing the injector/producer well ratio may also be cost-effective if the injectors are drilled as larger holes.

Greg Mines; Hillary Hanson; Rick Allis; Joseph Moore

2014-09-01T23:59:59.000Z

128

The Optimization of Well Spacing in a Coalbed Methane Reservoir.  

E-Print Network [OSTI]

??Numerical reservoir simulation has been used to describe mechanism of methane gas desorption process, diffusion process, and fluid flow in a coalbed methane reservoir. The… (more)

Sinurat, Pahala Dominicus

2012-01-01T23:59:59.000Z

129

Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Oklahoma Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

130

Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Wyoming Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0...

131

Utah Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Utah Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1...

132

Two-dimensional simulation of the Raft River geothermal reservoir...  

Open Energy Info (EERE)

of the Raft River geothermal reservoir and wells. (SINDA-3G program) Abstract Computer models describing both the transient reservoir pressure behavior and the time...

133

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...  

Open Energy Info (EERE)

from reservoir rock formation. - Task 2: Carbonation study of minerals. - Task 3: Mechanical behaviors of carbonated minerals. - Task 4: Modeling of CO2- reservoir rock...

134

EIA - Natural Gas Pipeline Network - Salt Cavern Storage Reservoir...  

U.S. Energy Information Administration (EIA) Indexed Site

Salt Cavern Underground Natural Gas Storage Reservoir Configuration Salt Cavern Underground Natural Gas Storage Reservoir Configuration Source: PB Energy Storage Services Inc....

135

An Updated Conceptual Model Of The Los Humeros Geothermal Reservoir...  

Open Energy Info (EERE)

Humeros Geothermal Reservoir (Mexico) Abstract An analysis of production and reservoir engineering data of 42 wells from the Los Humeros geothermal field (Mexico) allowed...

136

Use Of Electrical Surveys For Geothermal Reservoir Characterization...  

Open Energy Info (EERE)

Of Electrical Surveys For Geothermal Reservoir Characterization- Beowawe Geothermal Field Abstract The STAR geothermal reservoir simulator was used to model the natural state of...

137

Application of horizontal wells in steeply dipping reservoirs.  

E-Print Network [OSTI]

??A three-dimensional reservoir simulation study is performed to evaluate the impact of horizontal well applications on oil recovery from steeply dipping reservoirs. The Provincia field,… (more)

Lopez Navarro, Jose David

2012-01-01T23:59:59.000Z

138

Modeling wettability alteration in naturally fractured carbonate reservoirs.  

E-Print Network [OSTI]

??The demand for energy and new oil reservoirs around the world has increased rapidly while oil recovery from depleted reservoirs has become more difficult. Oil… (more)

Goudarzi, Ali

2012-01-01T23:59:59.000Z

139

Some practical aspects of reservoir management  

SciTech Connect (OSTI)

The practical essence of reservoir management is the optimal application of available resources-people, equipment, technology, and money to maximize profitability and recovery. Success must include knowledge and consideration of (1) the reservoir system, (2) the technologies available, and (3) the reservoir management business environment. Two Reservoir Management Demonstration projects (one in a small, newly-discovered field and one in a large, mature water-flood) implemented by the Department of Energy through BDM-Oklahoma illustrate the diversity of situations suited for reservoir management efforts. Project teams made up of experienced engineers, geoscientists, and other professionals arrived at an overall reservoir management strategy for each field. in 1993, Belden & Blake Corporation discovered a regionally significant oil reservoir (East Randolph Field) in the Cambrian Rose Run formation in Portage County, Ohio. Project objectives are to improve field operational economics and optimize oil recovery. The team focused on characterizing the reservoir geology and analyzing primary production and reservoir data to develop simulation models. Historical performance was simulated and predictions were made to assess infill drilling, water flooding, and gas repressurization. The Citronelle Field, discovered in 1955 in Mobile County, Alabama, has produced 160 million barrels from fluvial sandstones of the Cretaceous Rodessa formation. Project objectives are to address improving recovery through waterflood optimization and problems related to drilling, recompletions, production operations, and regulatory and environmental issues. Initial efforts focused on defining specific problems and on defining a geographic area within the field where solutions might best be pursued. Geologic and reservoir models were used to evaluate past performance and to investigate improved recovery operations.

Fowler, M.L.; Young, M.A.; Cole, E.L.; Madden, M.P. [BDM-Oklahoma, Bartlesville, OK (United States)

1996-09-01T23:59:59.000Z

140

Muon Capture on the Proton  

E-Print Network [OSTI]

The MuCap experiment measures the singlet rate Lambda_S of muon capture on the proton. A negative muon beam is stopped in a time projection chamber filled with ultra-pure hydrogen gas at 10 bar and room temperature. In combination with the surrounding decay electron detectors, the lifetime of muons in hydrogen can be measured to determine LS to a final precision of 1%. The capture rate is then used to derive the nucleon's pseudoscalar form factor gP. Our first-stage result, gP= 7.3\\pm1., will soon be updated with the final analysis of the full statistics reducing the error by a factor of ~2.

P. Winter

2011-10-23T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

How to capture active particles  

E-Print Network [OSTI]

For many applications, it is important to catch collections of autonomously navigating microbes and man-made microswimmers in a controlled way. Here we propose an efficient trap to collectively capture self-propelled colloidal rods. By means of computer simulation in two dimensions, we show that a static chevron-shaped wall represents an optimal boundary for a trapping device. Its catching efficiency can be tuned by varying the opening angle of the trap. For increasing angles, there is a sequence of three emergent states corresponding to partial, complete, and no trapping. A trapping `phase diagram' maps out the trap conditions under which the capture of self-propelled particles at a given density is rendered optimal.

A. Kaiser; H. H. Wensink; H. Löwen

2012-02-01T23:59:59.000Z

142

Induced Microearthquake Patterns in Hydrocarbon and Geothermal Reservoirs W. Scott Phillips  

E-Print Network [OSTI]

to improved resource management in fractured reservoirs. Running Head: Microearthquake Patterns in Reservoirs

143

Perspectives on Carbon Capture and Sequestration in the United States  

E-Print Network [OSTI]

California, depleted oil and gas reservoirs or deep salinecoal beds, depleted oil or gas reservoirs, and deep salinereservoirs (see Figure 2): unminable coal seam, depleted oil

Wong-Parodi, Gabrielle

2011-01-01T23:59:59.000Z

144

Practical Color-Based Motion Capture  

E-Print Network [OSTI]

Motion capture systems have been widely used for high quality content creation and virtual reality but are rarely used in consumer applications due to their price and setup cost. In this paper, we propose a motion capture ...

Wang, Robert

2010-09-10T23:59:59.000Z

145

TWELFTH ANNUAL CONFERENCE ON CARBON CAPTURE, UTILIZATION AND SEQUESTRATION MAY 1316, 2013 DAVID L. Lawrence Convention Center Pittsburgh, Pennsylvania Page1  

E-Print Network [OSTI]

TWELFTH ANNUAL CONFERENCE ON CARBON CAPTURE, UTILIZATION AND SEQUESTRATION MAY 1316 approaches of CCS. The main concern for a geologic carbon dioxide (CO2) sequestration is sustained of CO2 Sequestration in Deep Saline Reservoir, Citronelle Dome, USA S.Alireza Haghighat1 , Shahab D

Mohaghegh, Shahab

146

Graph dynamics : learning and representation  

E-Print Network [OSTI]

Graphs are often used in artificial intelligence as means for symbolic knowledge representation. A graph is nothing more than a collection of symbols connected to each other in some fashion. For example, in computer vision ...

Ribeiro, Andre Figueiredo

2006-01-01T23:59:59.000Z

147

Simulation of Radon Transport in Geothermal Reservoirs  

SciTech Connect (OSTI)

Numerical simulation of radon transport is a useful adjunct in the study of radon as an in situ tracer of hydrodynamic and thermodynamic numerical model has been developed to assist in the interpretation of field experiments. The model simulates transient response of radon concentration in wellhead geofluid as a function of prevailing reservoir conditions. The radon simulation model has been used to simulate radon concentration response during production drawdown and two flowrate transient tests in vapor-dominated systems. Comparison of model simulation with experimental data from field tests provides insight in the analysis of reservoir phenomena such as propagation of boiling fronts, and estimates of reservoir properties of porosity and permeability thickness.

Semprini, Lewis; Kruger, Paul

1983-12-15T23:59:59.000Z

148

Realistic costs of carbon capture  

SciTech Connect (OSTI)

There is a growing interest in carbon capture and storage (CCS) as a means of reducing carbon dioxide (CO2) emissions. However there are substantial uncertainties about the costs of CCS. Costs for pre-combustion capture with compression (i.e. excluding costs of transport and storage and any revenue from EOR associated with storage) are examined in this discussion paper for First-of-a-Kind (FOAK) plant and for more mature technologies, or Nth-of-a-Kind plant (NOAK). For FOAK plant using solid fuels the levelised cost of electricity on a 2008 basis is approximately 10 cents/kWh higher with capture than for conventional plants (with a range of 8-12 cents/kWh). Costs of abatement are found typically to be approximately US$150/tCO2 avoided (with a range of US$120-180/tCO2 avoided). For NOAK plants the additional cost of electricity with capture is approximately 2-5 cents/kWh, with costs of the range of US$35-70/tCO2 avoided. Costs of abatement with carbon capture for other fuels and technologies are also estimated for NOAK plants. The costs of abatement are calculated with reference to conventional SCPC plant for both emissions and costs of electricity. Estimates for both FOAK and NOAK are mainly based on cost data from 2008, which was at the end of a period of sustained escalation in the costs of power generation plant and other large capital projects. There are now indications of costs falling from these levels. This may reduce the costs of abatement and costs presented here may be 'peak of the market' estimates. If general cost levels return, for example, to those prevailing in 2005 to 2006 (by which time significant cost escalation had already occurred from previous levels), then costs of capture and compression for FOAK plants are expected to be US$110/tCO2 avoided (with a range of US$90-135/tCO2 avoided). For NOAK plants costs are expected to be US$25-50/tCO2. Based on these considerations a likely representative range of costs of abatement from CCS excluding transport and storage costs appears to be US$100-150/tCO2 for first-of-a-kind plants and perhaps US$30-50/tCO2 for nth-of-a-kind plants.The estimates for FOAK and NOAK costs appear to be broadly consistent in the light of estimates of the potential for cost reductions with increased experience. Cost reductions are expected from increasing scale, learning on individual components, and technological innovation including improved plant integration. Innovation and integration can both lower costs and increase net output with a given cost base. These factors are expected to reduce abatement costs by approximately 65% by 2030. The range of estimated costs for NOAK plants is within the range of plausible future carbon prices, implying that mature technology would be competitive with conventional fossil fuel plants at prevailing carbon prices.

Al Juaied, Mohammed (Harvard Univ., Cambridge, MA (US). Belfer Center for Science and International Affiaris); Whitmore, Adam (Hydrogen Energy International Ltd., Weybridge (GB))

2009-07-01T23:59:59.000Z

149

Volume 4: Characterization of representative reservoirs -- Gulf of Mexico field, U-8 reservoir  

SciTech Connect (OSTI)

A reservoir study was performed using a publicly available black oil simulator to history match and predict the performance of a Gulf of Mexico reservoir. The first objective of this simulation study was to validate the Black Oil Applied Simulation Tool version three for personal computers (BOAST3-PC) model to ensure the integrity of the simulation runs. Once validation was completed, a field history match for the Gulf of Mexico U-8 oil reservoir was attempted. A verbal agreement was reached with the operator of this reservoir to blindcode the name and location of the reservoir. In return, the operator supplied data and assistance in regards to the technical aspects of the research. On the basis of the best history match, different secondary recovery techniques were simulated as a predictive study for enhancing the reservoir productivity.

Koperna, G.J. Jr.; Johnson, H.R. [BDM Federal, Inc., McLean, VA (United States); Salamy, S.P.; Reeves, T.K. [BDM-Oklahoma, Inc., Bartlesville, OK (United States); Sawyer, W.K. [Mathematical and Computer Services, Inc., Danville, VA (United States); Kimbrell, W.C.; Schenewerk, P.A. [Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Petroleum Engineering

1998-07-01T23:59:59.000Z

150

HAWC Observatory captures first image  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuided Self-Assembly of GoldHAWC Observatory captures first

151

Carbon Capture and Storage, 2008  

SciTech Connect (OSTI)

The U.S. Department of Energy is researching the safe implementation of a technology called carbon sequestration, also known as carbon capture and storage, or CCS. Based on an oilfield practice, this approach stores carbon dioxide, or CO2 generated from human activities for millennia as a means to mitigate global climate change. In 2003, the Department of Energys National Energy Technology Laboratory formed seven Regional Carbon Sequestration Partnerships to assess geologic formations suitable for storage and to determine the best approaches to implement carbon sequestration in each region. This video describes the work of these partnerships.

2009-03-19T23:59:59.000Z

152

Carbon Capture and Storage, 2008  

ScienceCinema (OSTI)

The U.S. Department of Energy is researching the safe implementation of a technology called carbon sequestration, also known as carbon capture and storage, or CCS. Based on an oilfield practice, this approach stores carbon dioxide, or CO2 generated from human activities for millennia as a means to mitigate global climate change. In 2003, the Department of Energys National Energy Technology Laboratory formed seven Regional Carbon Sequestration Partnerships to assess geologic formations suitable for storage and to determine the best approaches to implement carbon sequestration in each region. This video describes the work of these partnerships.

None

2010-01-08T23:59:59.000Z

153

Sandia National Laboratories: Carbon Capture  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive SolarEducation Programs:CRF Researchers answer Alan Alda'sCapabilitiesCapture

154

The National Carbon Capture Center  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformation In closing, an National Carbon Capture Center at the Power Systems

155

Facies Analysis, Reservoir Characterization, and LIDAR Modeling of an Eocene  

E-Print Network [OSTI]

and Dean, 1982; Westcott, 1992; Giosan and Bhattacharya, 2005). Reservoir complexity in marginal lacustrine

Johnson, Cari

156

Installation of a Devonian Shale Reservoir Testing Facility and acquisition of reservoir property measurements  

SciTech Connect (OSTI)

In October, a contract was awarded for the Installation of a Devonian Shale Reservoir Testing Facility and Acquisition of Reservoir Property measurements from wells in the Michigan, Illinois, and Appalachian Basins. Geologic and engineering data collected through this project will provide a better understanding of the mechanisms and conditions controlling shale gas production. This report summarizes the results obtained from the various testing procedures used at each wellsite and the activities conducted at the Reservoir Testing Facility.

Locke, C.D.; Salamy, S.P.

1991-09-01T23:59:59.000Z

157

Installation of a Devonian Shale Reservoir Testing Facility and acquisition of reservoir property measurements. Final report  

SciTech Connect (OSTI)

In October, a contract was awarded for the Installation of a Devonian Shale Reservoir Testing Facility and Acquisition of Reservoir Property measurements from wells in the Michigan, Illinois, and Appalachian Basins. Geologic and engineering data collected through this project will provide a better understanding of the mechanisms and conditions controlling shale gas production. This report summarizes the results obtained from the various testing procedures used at each wellsite and the activities conducted at the Reservoir Testing Facility.

Locke, C.D.; Salamy, S.P.

1991-09-01T23:59:59.000Z

158

The verification of a semi-analytical reservoir simulator using a finite difference reservoir simulator  

E-Print Network [OSTI]

reduction in CPU time and computer memory, when compared to using finite difference reservoir simulators and mainframe computers, to solve the same problem. Development of Computers The advances that have been made in computing power and the improved...THE VERIFICATION OF A SEMI-ANALYTICAL RESERVOIR SIMULATOR USING A FINITE DIFFERENCE RESERVOIR SIMULATOR A Thesis by HANS GERHARDT DUBE Submitted to the Office of Graduate Studies Texas A&M University in partial fulfillment of the requirements...

Dube, Hans Gerhardt

1990-01-01T23:59:59.000Z

159

Study of Porous Adsorbents for Carbon Capture via Molecular Simulation  

E-Print Network [OSTI]

4 Ab initio carbon capture Background . . . . . .K. ; Haranczyk, M. ; Carbon Capture Materials Database;silico screening of carbon capture mate- rials” C Additional

Swisher, Joseph Andrew

2012-01-01T23:59:59.000Z

160

Perspectives on Carbon Capture and Sequestration in the United States  

E-Print Network [OSTI]

Community acceptance of carbon capture and sequestrationand realities of carbon capture and storage; www.eenews.net/Howard. What Future for Carbon Capture and Sequestration?

Wong-Parodi, Gabrielle

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Water Challenges for Geologic Carbon Capture and Sequestration  

E-Print Network [OSTI]

and HB 90:Carbon capture and sequestration, http://legisweb.6th annual conference on carbon capture and sequestration,7th annual conference on carbon capture & seques- tration,

Newmark, Robin L.; Friedmann, Samuel J.; Carroll, Susan A.

2010-01-01T23:59:59.000Z

162

Bioenergy with Carbon Capture and Sequestration WorkshopBioenergy...  

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

Bioenergy with Carbon Capture and Sequestration WorkshopBioenergy with Carbon Capture and Sequestration (BECCS) Workshop Bioenergy with Carbon Capture and Sequestration...

163

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

Modeling f o r Geothermal Reservoirs and Power- plants. I'Fumaroles Hunt, 1970 Geothermal power James, 1978 FusionGood a lated perfo : Geothermal Power Systems Compared. 'I

Sudo!, G.A

2012-01-01T23:59:59.000Z

164

Geothermal Reservoir Evaluation Considering Fluid Adsorption  

E-Print Network [OSTI]

SGP-"R- 68 Geothermal Reservoir Evaluation Considering Fluid Adsorption and Composition Michael J. Economides September, 1983 Financial support was provided through the Stanford Geothermal Program Contract No Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD UNIVERSITY Stanford

Stanford University

165

Fifteenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

The Fifteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 23--25, 1990. Major topics included: DOE's geothermal research and development program, well testing, field studies, geosciences, geysers, reinjection, tracers, geochemistry, and modeling.

Not Available

1990-01-01T23:59:59.000Z

166

Salinity routing in reservoir system modeling  

E-Print Network [OSTI]

in several major river basins in Texas and neighboring states. WRAP is the river/reservoir system simulation model incorporated in the Water Availability Modeling (WAM) System applied by agencies and consulting firms in Texas in planning and water right...

Ha, Mi Ae

2007-04-25T23:59:59.000Z

167

New multilateral well architecture in heterogeneous reservoirs  

E-Print Network [OSTI]

. The performance of new multilateral well in heterogeneous reservoirs is studied, and that is compared with vertical well architecture also. In order to study the productivity of new multilateral wells, we use a numerical simulation method to set up heterogeneous...

Jia, Hongqiao

2004-09-30T23:59:59.000Z

168

Estimating uncertainties in integrated reservoir studies  

E-Print Network [OSTI]

To make sound investment decisions, decision makers need accurate estimates of the uncertainties present in forecasts of reservoir performance. In this work I propose a method, the integrated mismatch method, that incorporates the misfit...

Zhang, Guohong

2004-09-30T23:59:59.000Z

169

Reservoir characterization using nonparametric regression techniques  

E-Print Network [OSTI]

reservoirs, but a simple and computationally efficient correlation is developed using only commonly available well log responses. Accurate permeability correlations are essential to understand, forecast, manage, and control production operations...

Mathisen, Trond

2000-01-01T23:59:59.000Z

170

Reservoir fracture characterizations from seismic scattered waves  

E-Print Network [OSTI]

The measurements of fracture parameters, such as fracture orientation, fracture density and fracture compliance, in a reservoir is very important for field development and exploration. Traditional seismic methods for ...

Fang, Xinding

2012-01-01T23:59:59.000Z

171

Dams and Reservoirs Safety Act (South Carolina)  

Broader source: Energy.gov [DOE]

The Dams and Reservoirs Safety Act provides for the certification and inspection of dams in South Carolina and confers regulatory authority on the Department of Health and Environmental Control....

172

Continuous variable entanglement dynamics in structured reservoirs  

E-Print Network [OSTI]

We address the evolution of entanglement in bimodal continuous variable quantum systems interacting with two independent structured reservoirs. We derive an analytic expression for the entanglement of formation without performing the Markov and the secular approximations and study in details the entanglement dynamics for various types of structured reservoirs and for different reservoir temperatures, assuming the two modes initially excited in a twin-beam state. Our analytic solution allows us to identify three dynamical regimes characterized by different behaviors of the entanglement: the entanglement sudden death, the non-Markovian revival and the non-secular revival regimes. Remarkably, we find that, contrarily to the Markovian case, the short-time system-reservoir correlations in some cases destroy quickly the initial entanglement even at zero temperature.

R. Vasile; S. Olivares; M. G. A. Paris; S. Maniscalco

2009-10-13T23:59:59.000Z

173

Heat deliverability of homogeneous geothermal reservoirs  

SciTech Connect (OSTI)

For the last two decades, the petroleum industry has been successfully using simple inflow performance relationships (IPR's) to predict oil deliverability. In contrast, the geothermal industry lacked a simple and reliable method to estimate geothermal wells' heat deliverability. To address this gap in the standard geothermal-reservoir-assessment arsenal, we developed generalized dimensionless geothermal inflow performance relationships (GIPR's). These ''reference curves'' may be regarded as an approximate general solution of the equations describing the practically important case of radial 2-phase inflow. Based on this approximate solution, we outline a straightforward approach to estimate the reservoir contribution to geothermal wells heat and mass deliverability for 2-phase reservoirs. This approach is far less costly and in most cases as reliable as numerically modeling the reservoir, which is the alternative for 2-phase inflow.

Iglesias, Eduardo R.; Moya, Sara L.

1991-01-01T23:59:59.000Z

174

Study of induced seismicity for reservoir characterization  

E-Print Network [OSTI]

The main goal of the thesis is to characterize the attributes of conventional and unconventional reservoirs through passive seismicity. The dissertation is comprised of the development and applications of three new methods, ...

Li, Junlun, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

175

Application of integrated reservoir management and reservoir characterization to optimize infill drilling  

SciTech Connect (OSTI)

This project has used a multi-disciplinary approach employing geology, geophysics, and engineering to conduct advanced reservoir characterization and management activities to design and implement an optimized infill drilling program at the North Robertson (Clearfork) Unit in Gaines County, Texas. The activities during the first Budget Period consisted of developing an integrated reservoir description from geological, engineering, and geostatistical studies, and using this description for reservoir flow simulation. Specific reservoir management activities were identified and tested. The geologically targeted infill drilling program currently being implemented is a result of this work. A significant contribution of this project is to demonstrate the use of cost-effective reservoir characterization and management tools that will be helpful to both independent and major operators for the optimal development of heterogeneous, low permeability shallow-shelf carbonate (SSC) reservoirs. The techniques that are outlined for the formulation of an integrated reservoir description apply to all oil and gas reservoirs, but are specifically tailored for use in the heterogeneous, low permeability carbonate reservoirs of West Texas.

NONE

1997-04-01T23:59:59.000Z

176

Capture of Irregular Satellites at Jupiter  

E-Print Network [OSTI]

The irregular satellites of outer planets are thought to have been captured from heliocentric orbits. The exact nature of the capture process, however, remains uncertain. We examine the possibility that irregular satellites were captured from the planetesimal disk during the early Solar System instability when encounters between the outer planets occurred (Nesvorny, Vokrouhlicky & Morbidelli 2007, AJ 133; hereafter NVM07). NVM07 already showed that the irregular satellites of Saturn, Uranus and Neptune were plausibly captured during planetary encounters. Here we find that the current instability models present favorable conditions for capture of irregular satellites at Jupiter as well, mainly because Jupiter undergoes a phase of close encounters with an ice giant. We show that the orbital distribution of bodies captured during planetary encounters provides a good match to the observed distribution of irregular satellites at Jupiter. The capture efficiency for each particle in the original transplanetary d...

Nesvorny, D; Deienno, R

2014-01-01T23:59:59.000Z

177

Pressure maintenance in a volatile oil reservoir  

E-Print Network [OSTI]

PRESSURE MAINTENANCE IN A VOLATILE OIL RESERVOIR A Thesis BRUCE ALAN SCHUSTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May, 1989 Major... Subject: Petroleum Engineering PRESSURE MAINTENANCE IN A VOLATILE OIL RESERVOIR A Thesis BRUCE ALAN SCHUSTER Approved as to style and content by: S. A. Holditch (Chair of Committee) W. J. Lee (Member) R. R, Berg (Member) , Jz W. D. Von Gonten...

Schuster, Bruce Alan

1989-01-01T23:59:59.000Z

178

Oil reservoir properties estimation using neural networks  

SciTech Connect (OSTI)

This paper investigates the applicability as well as the accuracy of artificial neural networks for estimating specific parameters that describe reservoir properties based on seismic data. This approach relies on JPL`s adjoint operators general purpose neural network code to determine the best suited architecture. The authors believe that results presented in this work demonstrate that artificial neural networks produce surprisingly accurate estimates of the reservoir parameters.

Toomarian, N.B. [California Inst. of Tech., Pasadena, CA (United States); Barhen, J.; Glover, C.W. [Oak Ridge National Lab., TN (United States). Center for Engineering Systems Advanced Research; Aminzadeh, F. [UNOCAL Corp., Sugarland, TX (United States)

1997-02-01T23:59:59.000Z

179

Numerical simulation of sandstone reservoir models  

E-Print Network [OSTI]

. Case 3 - Alternatin h1 h and low ermeabilities Waterflood performance of the Case 3 reservoir is shown in Figures 19 and 20. The process 1s practically rate insensitive for both the high and low viscosity ratio cases because of the ex istence... The results of the water flood study indicate that lower rates result i n higher waterflood oil recoveries from heterogeneous reservoirs, particularly where high oil-water viscosity ratios exist. These results support the conclusions of Jordan et. al...

Gross, Stephen Joseph

1983-01-01T23:59:59.000Z

180

Reservoir analysis model for battlefield operations  

E-Print Network [OSTI]

RESERVOIR ANALYSIS MODEL FOR BATTLEFIELD OPERATIONS A Thesis by GARRETT JAMES SULLIVAN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1988... Major Subject: Civil Engineering RESERVOIR ANALYSIS MODEL FOR BATTLEFIELD OPERATIONS A Thesis by GARRETT JAMES SULLIVAN Approved as to style and content by: Ralp A. Wurbs (Chair of Committee) mes (N er) neth tr ek Nem e Charles . a es...

Sullivan, Garrett James

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Reservoir cross-over in entanglement dynamics  

E-Print Network [OSTI]

We study the effects of spontaneous emission on the entanglement dynamics of two qubits interacting with a common Lorentzian structured reservoir. We assume that the qubits are initially prepared in a Bell-like state. We focus on the strong coupling regime and study the entanglement dynamics for different regions of the spontaneous emission decay parameter. This investigation allows us to explore the cross-over between common and independent reservoirs in entanglement dynamics.

L. Mazzola; S. Maniscalco; K. -A. Suominen; B. M. Garraway

2009-08-28T23:59:59.000Z

182

Naturally fractured reservoirs contain a significant amount of the world oil reserves. A number of these reservoirs contain several  

E-Print Network [OSTI]

Summary Naturally fractured reservoirs contain a significant amount of the world oil reserves. A number of these reservoirs contain several billion barrels of oil. Accurate and efficient reservoir this implementation has led to a unique and powerful reservoir simulator that can be used by small and large oil

Arbogast, Todd

183

Strategies for demonstration and early deployment of carbon capture and storage : a technical and economic assessment of capture percentage .  

E-Print Network [OSTI]

??Carbon capture and storage (CCS) is a critical technology for reducing greenhouse gas emissions from electricity production by coal-fired power plants. However, full capture (capture… (more)

Hildebrand, Ashleigh Nicole

2009-01-01T23:59:59.000Z

184

Reservoir Engineering Optimization Strategies for Subsurface CO{sub 2} Storage  

SciTech Connect (OSTI)

The purpose of this report is to outline a methodology for calculating the optimum number of injection wells for geologic CCS. The methodology is intended primarily for reservoir pressure management, and factors in cost as well. Efficiency may come in many forms depending on project goals; therefore, various results are presented simultaneously. The developed methodology is illustrated via application in a case study of the Rocky Mountain Carbon Capture and Storage (RMCCS) project, including a CCS candidate site near Craig, Colorado, USA. The forecasting method provided reasonable estimates of cost and injection volume when compared to simulated results.

Mclntire, Blayde; McPherson, Brian

2013-09-30T23:59:59.000Z

185

Bad data packet capture device  

DOE Patents [OSTI]

An apparatus and method for capturing data packets for analysis on a network computing system includes a sending node and a receiving node connected by a bi-directional communication link. The sending node sends a data transmission to the receiving node on the bi-directional communication link, and the receiving node receives the data transmission and verifies the data transmission to determine valid data and invalid data and verify retransmissions of invalid data as corresponding valid data. A memory device communicates with the receiving node for storing the invalid data and the corresponding valid data. A computing node communicates with the memory device and receives and performs an analysis of the invalid data and the corresponding valid data received from the memory device.

Chen, Dong; Gara, Alan; Heidelberger, Philip; Vranas, Pavlos

2010-04-20T23:59:59.000Z

186

Subsurface capture of carbon dioxide  

DOE Patents [OSTI]

A process and apparatus of separating CO.sub.2 gas from industrial off-gas source in which the CO.sub.2 containing off-gas is introduced deep within an injection well. The CO.sub.2 gases are dissolved in the, liquid within the injection well while non-CO.sub.2 gases, typically being insoluble in water or brine, are returned to the surface. Once the CO.sub.2 saturated liquid is present within the injection well, the injection well may be used for long-term geologic storage of CO.sub.2 or the CO.sub.2 saturated liquid can be returned to the surface for capturing a purified CO.sub.2 gas.

Blount, Gerald; Siddal, Alvin A.; Falta, Ronald W.

2014-07-22T23:59:59.000Z

187

Formation and thermal evolution of insoluble reservoir bitumen in Angolan carbonate reservoirs  

E-Print Network [OSTI]

Formation and thermal evolution of insoluble reservoir bitumen in Angolan carbonate reservoirs from 98% insoluble bitumen to 45% insoluble, indicating a substantial spread of maturity. However, the discordance shown by these parameters (e.g. bitumen reflectance and bitumen solubility in DCM) indicates

Paris-Sud XI, Université de

188

HYDROPOWER RESERVOIR FOR FLOOD CONTROL: A CASE STUDY ON RINGLET RESERVOIR, CAMERON  

E-Print Network [OSTI]

HYDROPOWER RESERVOIR FOR FLOOD CONTROL: A CASE STUDY ON RINGLET RESERVOIR, CAMERON HIGHLANDS, Malaysia 4 Professor, Department of Civil Engineering, Colorado State University, USA ABSTRACT: Hydropower as possible for daily hydropower generation as well as to prevent any spillage at dam. However

Julien, Pierre Y.

189

An approach to integrated assessement of reservoir siltation: the Joaqun Costa reservoir as a case study Hydrology and Earth System Sciences, 8(6), 11931199 (2004) EGU  

E-Print Network [OSTI]

An approach to integrated assessement of reservoir siltation: the Joaquín Costa reservoir as a case to integrated assessement of reservoir siltation: the Joaquín Costa reservoir as a case study A. Navas1 , B of the main environments in the reservoir. Records of known flood events and of reservoir management data have

Paris-Sud XI, Université de

190

The Capture of Centaurs as Trojans  

E-Print Network [OSTI]

Large scale simulations of Centaurs have yielded vast amounts of data, the analysis of which allows interesting but uncommon scenarios to be studied. One such rare phenomenon is the temporary capture of Centaurs as Trojans of the giant planets. Such captures are generally short (10 kyr to 100 kyr), but occur with sufficient frequency (about 40 objects larger than 1 km in diameter every Myr) that they may well contribute to the present-day populations. Uranus and Neptune seem to have great difficulty capturing Centaurs into the 1:1 resonance, while Jupiter captures some, and Saturn the most (80 %). We conjecture that such temporary capture from the Centaur population may be the dominant delivery route into the Saturnian Trojans. Photometric studies of the Jovian Trojans may reveal outliers with Centaur-like as opposed to asteroidal characteristics, and these would be prime candidates for captured Centaurs.

J. Horner; N. Wyn Evans

2005-11-29T23:59:59.000Z

191

Seismic imaging of reservoir flow properties: Resolving waterinflux and reservoir permeability  

SciTech Connect (OSTI)

Methods for geophysical model assessment, in particuale thecomputation of model parameter resolution, indicate the value and thelimitations of time-lapse data in estimating reservoir flow properties. Atrajectory-based method for computing sensitivities provides an effectivemeans to compute model parameter resolutions. We examine the commonsituation in which water encroaches into a resrvoir from below, as due tothe upward movement of an oil-water contact. Using straight-forwardtechniques we find that, by inclusing reflections off the top and bottomof a reservoir tens of meters thick, we can infer reservoir permeabilitybased upon time-lapse data. We find that, for the caseof water influxfrom below, using multiple time-lapse 'snapshots' does not necessarilyimprove the resolution of reservoir permeability. An application totime-lapse data from the Norne field illustrates that we can resolve thepermeability near a producing well using reflections from threeinterfaces associated with the reservoir.

Vasco, D.W.; Keers, Henk

2006-11-27T23:59:59.000Z

192

Reservoir Characterization, Production Characteristics, and Research Needs for Fluvial/Alluvial Reservoirs in the United States  

SciTech Connect (OSTI)

The Department of Energy's (DOE's) Oil Recovery Field Demonstration Program was initiated in 1992 to maximize the economically and environmentally sound recovery of oil from known domestic reservoirs and to preserve access to this resource. Cost-shared field demonstration projects are being initiated in geology defined reservoir classes which have been prioritized by their potential for incremental recovery and their risk of abandonment. This document defines the characteristics of the fifth geological reservoir class in the series, fluvial/alluvial reservoirs. The reservoirs of Class 5 include deposits of alluvial fans, braided streams, and meandering streams. Deposit morphologies vary as a complex function of climate and tectonics and are characterized by a high degree of heterogeneity to fluid flow as a result of extreme variations in water energy as the deposits formed.

Cole, E.L.; Fowler, M.L.; Jackson, S.R.; Madden, M.P.; Raw-Schatzinger, V.; Salamy, S.P.; Sarathi, P.; Young, M.A.

1999-04-28T23:59:59.000Z

193

Comparative Assessment of Status and Opportunities for CO2 Capture and Storage and Radioactive Waste Disposal in North America  

E-Print Network [OSTI]

sequestration in abandoned oil reservoirs: The Internationaldeep saline reservoirs (blue) and oil and gas reservoirs (hydrocarbon reservoirs known to have trapped oil and gas

Oldenburg, C.

2010-01-01T23:59:59.000Z

194

Implementation of motion capture support in smartphones.  

E-Print Network [OSTI]

??This thesis investigates the feasibility of developing cross-platform smart phone applications that utilize the Qualisys motion capture system. An Application Programming Interface that implements an… (more)

Martinsson, Johannes

2010-01-01T23:59:59.000Z

195

Electroweak Radiative Corrections to Muon Capture  

E-Print Network [OSTI]

Electroweak radiative corrections to muon capture on nuclei are computed and found to be sizable. They enhance the capture rates for hydrogen and helium by 2.8% and 3.0% respectively. As a result, the value of the induced pseudoscalar coupling, g_P^exp, extracted from a recent hydrogen 1S singlet capture experiment is increased by about 21% to g_P^exp = 7.3 +/- 1.2 and brought into good agreement with the prediction of chiral perturbation theory, g_P^theory=8.2 +/- 0.2. Implications for helium capture rate predictions are also discussed.

A. Czarnecki; W. J. Marciano; A. Sirlin

2007-04-30T23:59:59.000Z

196

Urban Atmospheres captures a unique, synergistic moment  

E-Print Network [OSTI]

Urban Atmospheres captures a unique, synergistic moment ­ expanding urban populations, rapid EDITORS Eric Paulos Intel Research eric@paulos.net Tom Jenkins Royal College of Art thomas

Paulos, Eric

197

E-Print Network 3.0 - advanced reservoir characterization Sample...  

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

<< < 1 2 3 4 5 > >> 1 TEXAS A&M UNIVERSITY Reservoir Geophysics Program Summary: and fracture analysis, multi-component seismic reservoir characterization, quantitative reservoir...

198

Analysis of stress sensitivity and its influence on oil production from tight reservoirs  

E-Print Network [OSTI]

low-permeability tight oil reservoirs are inadvisable to beconditions, to study tight oil reservoir stress sensitivity.oil production from tight oil reservoirs, in addition to

Lei, Qun; Xiong, Wei; Yuan, Cui; Wu, Yu-Shu

2008-01-01T23:59:59.000Z

199

Surfactant-enhanced spontaneous imbibition process in highly fractured carbonate reservoirs.  

E-Print Network [OSTI]

??Highly fractured carbonate reservoirs are a class of reservoirs characterized by high conductivity fractures surrounding low permeability matrix blocks. In these reservoirs, wettability alteration is… (more)

Chen, Peila

2011-01-01T23:59:59.000Z

200

Seismic low-frequency effects from oil-saturated reservoir zones  

E-Print Network [OSTI]

frequency effects from oil-saturated reservoir zones Gennadyeffects from oil-saturated reservoir zones. The seismic datatwo different types of oil-saturated reservoirs (Fig.2). The

Goloshubin, Gennady M.; Korneev, Valeri A.; Vingalov, Vjacheslav M.

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Fractured shale reservoirs: Towards a realistic model  

SciTech Connect (OSTI)

Fractured shale reservoirs are fundamentally unconventional, which is to say that their behavior is qualitatively different from reservoirs characterized by intergranular pore space. Attempts to analyze fractured shale reservoirs are essentially misleading. Reliance on such models can have only negative results for fractured shale oil and gas exploration and development. A realistic model of fractured shale reservoirs begins with the history of the shale as a hydrocarbon source rock. Minimum levels of both kerogen concentration and thermal maturity are required for effective hydrocarbon generation. Hydrocarbon generation results in overpressuring of the shale. At some critical level of repressuring, the shale fractures in the ambient stress field. This primary natural fracture system is fundamental to the future behavior of the fractured shale gas reservoir. The fractures facilitate primary migration of oil and gas out of the shale and into the basin. In this process, all connate water is expelled, leaving the fractured shale oil-wet and saturated with oil and gas. What fluids are eventually produced from the fractured shale depends on the consequent structural and geochemical history. As long as the shale remains hot, oil production may be obtained. (e.g. Bakken Shale, Green River Shale). If the shale is significantly cooled, mainly gas will be produced (e.g. Antrim Shale, Ohio Shale, New Albany Shale). Where secondary natural fracture systems are developed and connect the shale to aquifers or to surface recharge, the fractured shale will also produce water (e.g. Antrim Shale, Indiana New Albany Shale).

Hamilton-Smith, T. [Applied Earth Science, Lexington, KY (United States)

1996-09-01T23:59:59.000Z

202

Integral cesium reservoir: Design and transient operation  

SciTech Connect (OSTI)

An electrically heated thermionic converter has been designed built and successfully tested in air (Homer et.al., 1995). One of the unique features of this converter was an integral cesium reservoir thermally coupled to the emitter. The reservoir consisted of fifteen cesiated graphite pins located in pockets situated in the emitter lead with thermal coupling to the emitter, collector and the emitter terminal; there were no auxiliary electric heaters on the reservoir. Test results are described for conditions in which the input thermal power to the converter was ramped up and down between 50% and 100% of full power in times as short as 50 sec, with data acquisition occurring every 12 sec. During the ramps the emitter and collector temperature profiles. the reservoir temperature and the electric output into a fixed load resistor are reported. The converter responded promptly to the power ramps without excessive overshoot and with no tendency to develop instabilities. This is the rust demonstration of the performance of a cesium-graphite integral reservoir in a fast transient

Smith, J.N. Jr.; Horner, M.H.; Begg, L.L. [General Atomics, San Diego, CA (United States); Wrobleski, W.J. [Westinghouse Electric Corp., West Mifflin, PA (United States). Bettis Atomic Power Lab.

1995-01-01T23:59:59.000Z

203

Representation of noncommutative phase space  

E-Print Network [OSTI]

The representations of the algebra of coordinates and momenta of noncommutative phase space are given. We study, as an example, the harmonic oscillator in noncommutative space of any dimension. Finally the map of Sch$\\ddot{o}$dinger equation from noncommutative space to commutative space is obtained.

Kang Li; Jianhua Wang; Chiyi Chen

2005-08-16T23:59:59.000Z

204

Representation of Limited Rights Data and Restricted Computer...  

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

Representation of Limited Rights Data and Restricted Computer Software Representation of Limited Rights Data and Restricted Computer Software Representation of Limited Rights Data...

205

Reservoir characterization and enhanced oil recovery research  

SciTech Connect (OSTI)

The research in this annual report falls into three tasks each dealing with a different aspect of enhanced oil recovery. The first task strives to develop procedures for accurately modeling reservoirs for use as input to numerical simulation flow models. This action describes how we have used a detail characterization of an outcrop to provide insights into what features are important to fluid flow modeling. The second task deals with scaling-up and modeling chemical and solvent EOR processes. In a sense this task is the natural extension of task 1 and, in fact, one of the subtasks uses many of the same statistical procedures for insight into the effects of viscous fingering and heterogeneity. The final task involves surfactants and their interactions with carbon dioxide and reservoir minerals. This research deals primarily with phenomena observed when aqueous surfactant solutions are injected into oil reservoirs.

Lake, L.W.; Pope, G.A.; Schechter, R.S.

1992-03-01T23:59:59.000Z

206

Using Enhanced Spherical Images for Object Representation  

E-Print Network [OSTI]

The processes involved in vision, manipulation, and spatial reasoning depend greatly on the particular representation of three-dimensional objects used. A novel representation, based on concepts of differential geometry, ...

Smith, David A.

1979-05-01T23:59:59.000Z

207

Characterization of oil and gas reservoir heterogeneity  

SciTech Connect (OSTI)

Research described In this report addresses the internal architecture of two specific reservoir types: restricted-platform carbonates and fluvial-deltaic sandstones. Together, these two reservoir types contain more than two-thirds of the unrecovered mobile oil remaining ill Texas. The approach followed in this study was to develop a strong understanding of the styles of heterogeneity of these reservoir types based on a detailed outcrop description and a translation of these findings into optimized recovery strategies in select subsurface analogs. Research targeted Grayburg Formation restricted-platform carbonate outcrops along the Algerita Escarpment and In Stone Canyon In southeastern New Mexico and Ferron deltaic sandstones in central Utah as analogs for the North Foster (Grayburg) and Lake Creek (Wilcox) units, respectively. In both settings, sequence-stratigraphic style profoundly influenced between-well architectural fabric and permeability structure. It is concluded that reservoirs of different depositional origins can therefore be categorized Into a heterogeneity matrix'' based on varying intensity of vertical and lateral heterogeneity. The utility of the matrix is that it allows prediction of the nature and location of remaining mobile oil. Highly stratified reservoirs such as the Grayburg, for example, will contain a large proportion of vertically bypassed oil; thus, an appropriate recovery strategy will be waterflood optimization and profile modification. Laterally heterogeneous reservoirs such as deltaic distributary systems would benefit from targeted infill drilling (possibly with horizontal wells) and improved areal sweep efficiency. Potential for advanced recovery of remaining mobile oil through heterogeneity-based advanced secondary recovery strategies In Texas is projected to be an Incremental 16 Bbbl. In the Lower 48 States this target may be as much as 45 Bbbl at low to moderate oil prices over the near- to mid-term.

Tyler, N.; Barton, M.D.; Bebout, D.G.; Fisher, R.S.; Grigsby, J.D.; Guevara, E.; Holtz, M.; Kerans, C.; Nance, H.S.; Levey, R.A.

1992-10-01T23:59:59.000Z

208

An Intelligent Systems Approach to Reservoir Characterization  

SciTech Connect (OSTI)

Today, the major challenge in reservoir characterization is integrating data coming from different sources in varying scales, in order to obtain an accurate and high-resolution reservoir model. The role of seismic data in this integration is often limited to providing a structural model for the reservoir. Its relatively low resolution usually limits its further use. However, its areal coverage and availability suggest that it has the potential of providing valuable data for more detailed reservoir characterization studies through the process of seismic inversion. In this paper, a novel intelligent seismic inversion methodology is presented to achieve a desirable correlation between relatively low-frequency seismic signals, and the much higher frequency wireline-log data. Vertical seismic profile (VSP) is used as an intermediate step between the well logs and the surface seismic. A synthetic seismic model is developed by using real data and seismic interpretation. In the example presented here, the model represents the Atoka and Morrow formations, and the overlying Pennsylvanian sequence of the Buffalo Valley Field in New Mexico. Generalized regression neural network (GRNN) is used to build two independent correlation models between; (1) Surface seismic and VSP, (2) VSP and well logs. After generating virtual VSP's from the surface seismic, well logs are predicted by using the correlation between VSP and well logs. The values of the density log, which is a surrogate for reservoir porosity, are predicted for each seismic trace through the seismic line with a classification approach having a correlation coefficient of 0.81. The same methodology is then applied to real data taken from the Buffalo Valley Field, to predict inter-well gamma ray and neutron porosity logs through the seismic line of interest. The same procedure can be applied to a complete 3D seismic block to obtain 3D distributions of reservoir properties with less uncertainty than the geostatistical estimation methods. The intelligent seismic inversion method should help to increase the success of drilling new wells during field development.

Shahab D. Mohaghegh; Jaime Toro; Thomas H. Wilson; Emre Artun; Alejandro Sanchez; Sandeep Pyakurel

2005-08-01T23:59:59.000Z

209

Water salinity of the First Eocene reservoir: Its unique behaviour and influence on reservoir engineering calculations  

SciTech Connect (OSTI)

The salinity of the produced water from First Eocene reservoir of Wafra field was studied through its past history. The change in the salinity of the initially produced water (from about 500 to 20,000 ppm NaCl) was attributed to the meteoric water which might have entered the reservoir through its outcrops to the west of the field. The correct value of the connate water salinity (23,000 ppm) that should be used in estimating the original oil in place by the volumetric method was determined by three different approaches. In addition, a technique to be followed in calculating the volumetric original oil in place for the First Eocene reservoir is outlined to overcome the complex behaviour of aquifer salinity. The change in the produced water salinity of the First Eocene reservoir with time was studied and proved that water is dumping from an upper water bearing zone into First Eocene reservoir. Upper water dumping, which apparently has supported the reservoir pressure, was confirmed to occur behind casing in many deeper wells penetrating the First Eocene reservoir by the analysis of their temperature and noise logs.

Ghoniem, S.A.A.; Al-Zanki, F.H.

1985-03-01T23:59:59.000Z

210

Water salinity of First Eocene reservoir: Unique behavior and influence on reservoir engineering calculations  

SciTech Connect (OSTI)

The salinity of the produced water from the First Eocene reservoir of the Wafra field was studied through its history. The change in the salinity of the initially produced water (from about 500 to 20,000 ppm NaCl) was attributed to meteoric water that might have entered the reservoir through outcrops west of the field. The correct value of the interstitial water salinity (23,000ppm) that should be used in estimating the original oil in place (OOIP) by the volumetric method was determined by three different approaches. In addition, a technique to overcome the complex behavior of aquifer salinity in calculating the volumetric OOIP for the First Eocene reservoir is outlined. A study of the change in the produced water salinity of the First Eocene reservoir with time proved that water is dumping from an upper water-bearing zone into the reservoir. Analysis of temperature and noise logs confirmed that this upper water dumping, which apparently has supported the reservoir pressure, occurred behind casing in many deeper wells penetrating the First Eocene reservoir.

Ghoniem, S.A.; Al-Zanki, F.H.

1987-09-01T23:59:59.000Z

211

Pesticide use in Kentucky reservoir watershed  

SciTech Connect (OSTI)

This report summarizes information on the types, uses, and amounts of pesticides applied to Kentucky Reservoir and its immediate watershed. Estimates for the quantities and types of the various pesticides used are based primarily on the land uses in the watershed. A listing of commonly used pesticides is included describing their uses, mode of action, and potential toxicological effects. This report will inform the the public and the Kentucky Reservoir Water Resources Task Force of the general extent of pesticide usage and is not an assessment of pesticide impacts. 10 refs., 5 figs., 9 tabs.

Butkus, S.R.

1988-06-01T23:59:59.000Z

212

Prediction of Kizildere reservoir behavior under exploitation  

SciTech Connect (OSTI)

Kizildere geothermal reservoir is under exploitation since 1984. During the four years of operation, electricity production showed a decline from the initially designed power output of 20.4 MW{sub e}. The scaling in wells necessitates periodic mechanical cleaning. However decline in well flow rates even after cleaning, indicate either decrease in productivity index due to scaling in fractures or due to rapid decline in reservoir pressure due to insufficient recharge and strong interference between wells. In this paper the results of a lumped parameter model prepared for Kizildere will be presented with the analysis of natural state of the field.

Okandan, Ender

1988-01-01T23:59:59.000Z

213

Characterization of oil and gas reservoir heterogeneity  

SciTech Connect (OSTI)

The objective of the cooperative research program is to characterize Alaskan reservoirs in terms of their reserves, physical and chemical properties, geologic configuration and structure, and the development potential. The tasks completed during this period include: (1) geologic reservoir description of Endicott Field; (2) petrographic characterization of core samples taken from selected stratigraphic horizons of the West Sak and Ugnu (Brookian) wells; (3) development of a polydispersed thermodynamic model for predicting asphaltene equilibria and asphaltene precipitation from crude oil-solvent mixtures, and (4) preliminary geologic description of the Milne Point Unit.

Not Available

1991-01-01T23:59:59.000Z

214

Improved characterization of reservoir behavior by integration of reservoir performances data and rock type distributions  

SciTech Connect (OSTI)

An integrated geological/petrophysical and reservoir engineering study was performed for a large, mature waterflood project (>250 wells, {approximately}80% water cut) at the North Robertson (Clear Fork) Unit, Gaines County, Texas. The primary goal of the study was to develop an integrated reservoir description for {open_quotes}targeted{close_quotes} (economic) 10-acre (4-hectare) infill drilling and future recovery operations in a low permeability, carbonate (dolomite) reservoir. Integration of the results from geological/petrophysical studies and reservoir performance analyses provide a rapid and effective method for developing a comprehensive reservoir description. This reservoir description can be used for reservoir flow simulation, performance prediction, infill targeting, waterflood management, and for optimizing well developments (patterns, completions, and stimulations). The following analyses were performed as part of this study: (1) Geological/petrophysical analyses: (core and well log data) - {open_quotes}Rock typing{close_quotes} based on qualitative and quantitative visualization of pore-scale features. Reservoir layering based on {open_quotes}rock typing {close_quotes} and hydraulic flow units. Development of a {open_quotes}core-log{close_quotes} model to estimate permeability using porosity and other properties derived from well logs. The core-log model is based on {open_quotes}rock types.{close_quotes} (2) Engineering analyses: (production and injection history, well tests) Material balance decline type curve analyses to estimate total reservoir volume, formation flow characteristics (flow capacity, skin factor, and fracture half-length), and indications of well/boundary interference. Estimated ultimate recovery analyses to yield movable oil (or injectable water) volumes, as well as indications of well and boundary interference.

Davies, D.K.; Vessell, R.K. [David K. Davies & Associates, Kingwood, TX (United States); Doublet, L.E. [Texas A& M Univ., College Station, TX (United States)] [and others

1997-08-01T23:59:59.000Z

215

INCREASING WATERFLOOD RESERVES IN THE WILMINGTON OIL FIELD THROUGH IMPROVED RESERVOIR CHARACTERIZATION AND RESERVOIR MANAGEMENT  

SciTech Connect (OSTI)

This project increased recoverable waterflood reserves in slope and basin reservoirs through improved reservoir characterization and reservoir management. The particular application of this project is in portions of Fault Blocks IV and V of the Wilmington Oil Field, in Long Beach, California, but the approach is widely applicable in slope and basin reservoirs. Transferring technology so that it can be applied in other sections of the Wilmington Field and by operators in other slope and basin reservoirs is a primary component of the project. This project used advanced reservoir characterization tools, including the pulsed acoustic cased-hole logging tool, geologic three-dimensional (3-D) modeling software, and commercially available reservoir management software to identify sands with remaining high oil saturation following waterflood. Production from the identified high oil saturated sands was stimulated by recompleting existing production and injection wells in these sands using conventional means as well as a short radius redrill candidate. Although these reservoirs have been waterflooded over 40 years, researchers have found areas of remaining oil saturation. Areas such as the top sand in the Upper Terminal Zone Fault Block V, the western fault slivers of Upper Terminal Zone Fault Block V, the bottom sands of the Tar Zone Fault Block V, and the eastern edge of Fault Block IV in both the Upper Terminal and Lower Terminal Zones all show significant remaining oil saturation. Each area of interest was uncovered emphasizing a different type of reservoir characterization technique or practice. This was not the original strategy but was necessitated by the different levels of progress in each of the project activities.

Scott Walker; Chris Phillips; Roy Koerner; Don Clarke; Dan Moos; Kwasi Tagbor

2002-02-28T23:59:59.000Z

216

Phase Errors and the Capture Effect  

SciTech Connect (OSTI)

This slide-show presents analysis of spectrograms and the phase error of filtered noise in a signal. When the filtered noise is smaller than the signal amplitude, the phase error can never exceed 90{deg}, so the average phase error over many cycles is zero: this is called the capture effect because the largest signal captures the phase and frequency determination.

Blair, J., and Machorro, E.

2011-11-01T23:59:59.000Z

217

Hyperfine Effects in Ionic Orbital Electron Capture  

E-Print Network [OSTI]

The K-orbital electron capture in ions with one or two electrons is analized for a general allowed nuclear transition. For ionic hyperfine states the angular neutrino distribution and the electron capture rate are given in terms of nuclear matrix elements. A possible application towards the determination of neutrino parameters is outlined.

M. A. Goñi

2010-03-02T23:59:59.000Z

218

Capturing CO2 from Air Anca Timofte  

E-Print Network [OSTI]

Capturing CO2 from Air Anca Timofte Climeworks AG Birchstrasse 155, 8050 Zürich www.climeworks.com, contact@climeworks.com Carbon Mitigation Lecture, 27 October 2014 #12;Air Climeworks CO2 capture plant CO2-free air Pure CO2 #12;3 Climeworks Products Demonstrator · 1 ton CO2 per year · Online since 12

Fischlin, Andreas

219

Microfluidic Platforms for Capturing Circulating Tumor Cells  

E-Print Network [OSTI]

Microfluidic Platforms for Capturing Circulating Tumor Cells Sweta Gupta, Allison C. Baker-cost microfluidic device that can be used to isolate and capture circulating tumor cells (CTCs) from whole blood. The device was made from polydimethylsiloxane (PDMS) consisting of a microfluidic channel with microposts

Tang, William C

220

Microalgal biofuels; carbon capture and sequestration  

SciTech Connect (OSTI)

There is growing recognition that microalgae are among the most productive biological systems for generating biomass and capturing carbon. Further efficiencies are gained by harvesting 100% of the biomass, much more than is possible in terrestrial biomass production systems. Micro-algae's ability to transport bicarbonate into cells makes them well suited to capture carbon. Carbon dioxide—or bicarbonate-capturing efficiencies as high as 90% have been reported in open ponds. The scale of microalgal production facilities necessary to capture carbon-dioxide (CO{sub 2}) emissions from stationary point sources such as power stations and cement kilns is also manageable; thus, microalgae can potentially be exploited for CO{sub 2} capture and sequestration. In this article, I discuss possible strategies using microalgae to sequester CO{sub 2} with reduced environmental consequences.

Sayre, R

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

SEISMIC DETERMINATION OF RESERVOIR HETEROGENEITY; APPLICATION TO THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS  

SciTech Connect (OSTI)

The objective of the project is to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study is performed at West Coalinga Field in California. We continued our investigation on the nature of seismic reactions from heterogeneous reservoirs. We began testing our algorithm to infer parameters of object-based reservoir models from seismic data. We began integration of seismic and geologic data to determine the deterministic limits of conventional seismic data interpretation. Lastly, we began integration of seismic and geologic heterogeneity using stochastic models conditioned both on wireline and seismic data.

Matthias G. Imhof; James W. Castle

2003-11-01T23:59:59.000Z

222

DEVELOPMENT OF RESERVOIR CHARACTERIZATION TECHNIQUES AND PRODUCTION MODELS FOR EXPLOITING NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

For many years, geoscientists and engineers have undertaken research to characterize naturally fractured reservoirs. Geoscientists have focused on understanding the process of fracturing and the subsequent measurement and description of fracture characteristics. Engineers have concentrated on the fluid flow behavior in the fracture-porous media system and the development of models to predict the hydrocarbon production from these complex systems. This research attempts to integrate these two complementary views to develop a quantitative reservoir characterization methodology and flow performance model for naturally fractured reservoirs. The research has focused on estimating naturally fractured reservoir properties from seismic data, predicting fracture characteristics from well logs, and developing a naturally fractured reservoir simulator. It is important to develop techniques that can be applied to estimate the important parameters in predicting the performance of naturally fractured reservoirs. This project proposes a method to relate seismic properties to the elastic compliance and permeability of the reservoir based upon a sugar cube model. In addition, methods are presented to use conventional well logs to estimate localized fracture information for reservoir characterization purposes. The ability to estimate fracture information from conventional well logs is very important in older wells where data are often limited. Finally, a desktop naturally fractured reservoir simulator has been developed for the purpose of predicting the performance of these complex reservoirs. The simulator incorporates vertical and horizontal wellbore models, methods to handle matrix to fracture fluid transfer, and fracture permeability tensors. This research project has developed methods to characterize and study the performance of naturally fractured reservoirs that integrate geoscience and engineering data. This is an important step in developing exploitation strategies for optimizing the recovery from naturally fractured reservoir systems. The next logical extension of this work is to apply the proposed methods to an actual field case study to provide information for verification and modification of the techniques and simulator. This report provides the details of the proposed techniques and summarizes the activities undertaken during the course of this project. Technology transfer activities were highlighted by a two-day technical conference held in Oklahoma City in June 2002. This conference attracted over 90 participants and included the presentation of seventeen technical papers from researchers throughout the United States.

Michael L. Wiggins; Raymon L. Brown; Faruk Civan; Richard G. Hughes

2002-12-31T23:59:59.000Z

223

Context Representation for Web Search Results  

E-Print Network [OSTI]

Context Representation for Web Search Results Jesús Vegas Department of Computer Science U. Valladolid Context Representation for Web Search Results 2 Outline Intro Web search results in the web site and Future work #12;Context Representation for Web Search Results 3 Introduction Searching the web is one

Baeza-Yates, Ricardo

224

Quantum Mechanics and Representation Theory Columbia University  

E-Print Network [OSTI]

Quantum Mechanics and Representation Theory Peter Woit Columbia University Texas Tech, November 21 2013 Peter Woit (Columbia University) Quantum Mechanics and Representation Theory November 2013 1 / 30, 1967 Peter Woit (Columbia University) Quantum Mechanics and Representation Theory November 2013 2 / 30

Woit, Peter

225

Analysis of stress sensitivity and its influence on oil productionfrom tight reservoirs  

SciTech Connect (OSTI)

This paper presents a study of the relationship betweenpermeability and effective stress in tight petroleum reservoirformations. Specifically, a quantitative method is developed to describethe correlation between permeability and effective stress, a method basedon the original in situ reservoir effective stress rather than ondecreased effective stress during development. The experimental resultsshow that the relationship between intrinsic permeability and effectivestress in reservoirs in general follows a quadratic polynomial functionalform, found to best capture how effective stress influences formationpermeability. In addition, this experimental study reveals that changesin formation permeability, caused by both elastic and plasticdeformation, are permanent and irreversible. Related pore-deformationtests using electronic microscope scanning and constant-rate mercuryinjection techniques show that while stress variation generally has smallimpact onrock porosity, the size and shape of pore throats have asignificant impact on permeability-stress sensitivity. Based on the testresults and theoretical analyses, we believe that there exists a cone ofpressure depression in the area near production within suchstress-sensitive tight reservoirs, leading to a low-permeability zone,and that well production will decrease under the influence of stresssensitivity.

Lei, Qun; Xiong, Wei; Yuan, Cui; Wu, Yu-Shu

2007-08-28T23:59:59.000Z

226

Feasibility of waterflooding Soku E7000 gas-condensate reservoir  

E-Print Network [OSTI]

. To achieve this recovery, the reservoir should return to natural depletion after four years of water injection, before water invades the producing wells. Factors that affect the effectiveness of water injection in this reservoir include aquifer strength...

Ajayi, Arashi

2002-01-01T23:59:59.000Z

227

Monitoring and Modeling Fluid Flow in a Developing EGS Reservoir  

Broader source: Energy.gov [DOE]

Project objectives: Better understand and model fluid injection into a tight reservoir on the edges of a hydrothermal field. Use seismic data to constrain geomechanical/hydrologic/thermal model of reservoir.

228

Evaluating human fecal contamination sources in Kranji Reservoir Catchment, Singapore  

E-Print Network [OSTI]

Singapore government through its Public Utilities Board is interested in opening Kranji Reservoir to recreational use. However, water courses within the Kranji Reservoir catchment contain human fecal indicator bacteria ...

Nshimyimana, Jean Pierre

2010-01-01T23:59:59.000Z

229

Techniques of High Performance Reservoir Simulation for Unconventional Challenges  

E-Print Network [OSTI]

The quest to improve the performance of reservoir simulators has been evolving with the newly encountered challenges of modeling more complex recovery mechanisms and related phenomena. Reservoir subsidence, fracturing and fault reactivation etc...

Wang, Yuhe

2013-12-05T23:59:59.000Z

230

Optimizing Development Strategies to Increase Reserves in Unconventional Gas Reservoirs  

E-Print Network [OSTI]

in tight gas fields is challenging, not only because of the wide range of depositional environments and large variability in reservoir properties, but also because the evaluation often has to deal with a multitude of wells, limited reservoir information...

Turkarslan, Gulcan

2011-10-21T23:59:59.000Z

231

Optimal Hydropower Reservoir Operation with Environmental Requirements MARCELO ALBERTO OLIVARES  

E-Print Network [OSTI]

Optimal Hydropower Reservoir Operation with Environmental Requirements By MARCELO ALBERTO OLIVARES Engineering Optimal Hydropower Reservoir Operation with Environmental Requirements Abstract Engineering solutions to the environmental impacts of hydropower operations on downstream aquatic ecosystem are studied

Lund, Jay R.

232

Stress-dependent permeability on tight gas reservoirs  

E-Print Network [OSTI]

test analysis of tight gas reservoirs. Estimation of these parameters depends on draw down in the reservoir. The great impact of permeability, skin factor and OGIP calculations are useful in business decisions and profitability for the oil company...

Rodriguez, Cesar Alexander

2005-02-17T23:59:59.000Z

233

Petrophysics -The Integration of Reservoir Geosciences Date: 8th -11th September 2014  

E-Print Network [OSTI]

& Integrated Petrophyiscs and Uncertainty Management Date: 2nd - 7th February 2015 Reservoir SurveillancePetrophysics - The Integration of Reservoir Geosciences Date: 8th - 11th September 2014 Integrating Petrophysics and Seismic Data for Reservoir Characterisation GL55518 Reservoir Surveillance

Levi, Ran

234

Horizontal Well Placement Optimization in Gas Reservoirs Using Genetic Algorithms  

E-Print Network [OSTI]

University Co-Chairs of Advisory Committee, Dr. Ding Zhu Dr. Hadi Nasrabadi Horizontal well placement determination within a reservoir is a significant and difficult step... optimization is an important criterion during the reservoir development phase of a horizontal-well project in gas reservoirs, but it is less significant to vertical wells in a homogeneous reservoir. It is also shown that genetic algorithms are an extremely...

Gibbs, Trevor Howard

2011-08-08T23:59:59.000Z

235

Feasibility of seasonal multipurpose reservoir operation in Texas  

E-Print Network [OSTI]

constant top of conservation pool elevation. Managing Texas reservoirs by seasonal rule curve operation shows the potential for increasing the firm yield from a reservoir and at the same time decreasing damages due to flooding. However, seasonal rule... Framework for Reservoir Management . . Flood Control Versus Conservation Purposes Conservation Operations . Flood Control Operations Operating Procedures Seasonal Rule Curve Operation in Texas CHAPTER III SEASONAL FACTORS AFFECTING RESERVOIR OPERATION...

Tibbets, Michael N

1986-01-01T23:59:59.000Z

236

Temporal Representation in Semantic Graphs  

SciTech Connect (OSTI)

A wide range of knowledge discovery and analysis applications, ranging from business to biological, make use of semantic graphs when modeling relationships and concepts. Most of the semantic graphs used in these applications are assumed to be static pieces of information, meaning temporal evolution of concepts and relationships are not taken into account. Guided by the need for more advanced semantic graph queries involving temporal concepts, this paper surveys the existing work involving temporal representations in semantic graphs.

Levandoski, J J; Abdulla, G M

2007-08-07T23:59:59.000Z

237

Non-Darcy flow in geothermal reservoirs  

SciTech Connect (OSTI)

The effects of non-Darcy flow laws are investigated for two geothermal reservoir types: multiphase and Hot Dry Rock (HDR). Long-term thermal behavior is emphasized as short-term pressure transient behavior is addressed in the oil field literature. Comparisons of Darcy and non-Darcy flow laws are made.

Zyvoloski, G.

1982-01-01T23:59:59.000Z

238

Fourteenth workshop geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

The Fourteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 24--26, 1989. Major areas of discussion include: (1) well testing; (2) various field results; (3) geoscience; (4) geochemistry; (5) reinjection; (6) hot dry rock; and (7) numerical modelling. For these workshop proceedings, individual papers are processed separately for the Energy Data Base.

Ramey, H.J. Jr.; Kruger, P.; Horne, R.N.; Miller, F.G.; Brigham, W.E.; Cook, J.W.

1989-01-01T23:59:59.000Z

239

Fourteenth workshop geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

The Fourteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 24--26, 1989. Major areas of discussion include: (1) well testing; (2) various field results; (3) geoscience; (4) geochemistry; (5) reinjection; (6) hot dry rock; and (7) numerical modelling. For these workshop proceedings, individual papers are processed separately for the Energy Data Base.

Ramey, H.J. Jr.; Kruger, P.; Horne, R.N.; Miller, F.G.; Brigham, W.E.; Cook, J.W.

1989-12-31T23:59:59.000Z

240

Greentree Reservoir Management Matthew J. Gray  

E-Print Network [OSTI]

1 Greentree Reservoir Management Matthew J. Gray University of Tennessee Hardwood Bottomlands in Openings Guy Baldassarre Should Manage for Forest Openings >1 acre #12;4 Other Important Functions Bottomline on Bottomlands Hardwood bottomlands are critical ecosystems that play an integral role

Gray, Matthew

Note: This page contains sample records for the topic "representations capturing reservoir" 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

1 RESERVOIR CHARACTERIZATION 1.1 INTRODUCTION  

E-Print Network [OSTI]

Basin, are important targets for CO2 enhanced recovery of oil. The Spraberry reservoirs were discovered in 1949, and have been producing oil since then. Traditionally marginal producers, these clastic, determination of targets in horizontal drilling, isopach mapping, reserve estimations and input data

Schechter, David S.

242

Innovative MIOR Process Utilizing Indigenous Reservoir Constituents  

SciTech Connect (OSTI)

This research program was directed at improving the knowledge of reservoir ecology and developing practical microbial solutions for improving oil production. The goal was to identify indigenous microbial populations which can produce beneficial metabolic products and develop a methodology to stimulate those select microbes with nutrient amendments to increase oil recovery. This microbial technology has the capability of producing multiple oil-releasing agents.

Hitzman, D.O.; Stepp, A.K.; Dennis, D.M.; Graumann, L.R.

2003-02-11T23:59:59.000Z

243

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCXS  

E-Print Network [OSTI]

STIMULATION AND RESERVOIR ENGINEERING OF GEOTHERMAL RESOURCXS Henry J. Ramey, Jr., and A. Louis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Stanford Geothermal Project Reports . . . . . . . . . . . . . . 69 Papers Presented a t the Second United Nations Symposium on t h e Development and Use of Geothermal Resources, May 19-29, 1975, San

Stanford University

244

Coarse scale simulation of tight gas reservoirs  

E-Print Network [OSTI]

It is common for field models of tight gas reservoirs to include several wells with hydraulic fractures. These hydraulic fractures can be very long, extending for more than a thousand feet. A hydraulic fracture width is usually no more than about 0...

El-Ahmady, Mohamed Hamed

2004-09-30T23:59:59.000Z

245

Type curve analysis for naturally fractured reservoirs (infinite-acting reservoir case): a new approach  

E-Print Network [OSTI]

analysis methods are sometimes inconclusive for pressure transient analysis of wells completed in naturally fractured reservoirs. This is due to wellbore storage effects which mask the early time "straight-line" that is expected on the semilog plot...

Angel Restrepo, Juan Alejandro

2012-06-07T23:59:59.000Z

246

A better understanding of a Uinta Basin channelized analog reservoir through geostatistics and reservoir simulation  

E-Print Network [OSTI]

techniques analyzed. Sensitivity runs with different waterflood patterns indicated that a staggered line drive results in the best performance in the analog channelized reservoir we modeled, as it allows for the best recovery factor in the least amount...

Robbana, Enis

2002-01-01T23:59:59.000Z

247

Petro-electric modeling for CSEM reservoir characterization and monitoring  

E-Print Network [OSTI]

of two or more repeat surveys recorded at different calendar times over a depleting reservoir. The main a feasibility study of time-lapse CSEM data to monitor the water flooding of an oil reservoir. Utilizing 3DPetro-electric modeling for CSEM reservoir characterization and monitoring Alireza Shahin1 , Kerry

Key, Kerry

248

Hierarchical Economic Optimization of Oil Production from Petroleum Reservoirs  

E-Print Network [OSTI]

of water into an oil reservoir. Studies on model-based dynamic optimization of waterflooding strategies to as waterflooding. It serves two purposes: sustaining reservoir pressure and sweeping the oil out of pores still be present in the reservoir. Fig. 1. Process of waterflooding using a (horizontal) in- jection

Van den Hof, Paul

249

Maximizing output from oil reservoirs without water breakthrough  

E-Print Network [OSTI]

Maximizing output from oil reservoirs without water breakthrough S.K. Lucas School of Mathematics, revised May 2003, published 45(3), 2004, 401­422 Abstract Often in oil reservoirs a layer of water lies, for example, Muskat [8], Bear [1]). When oil is removed from the reservoir by an oil well, it will generate

Lucas, Stephen

250

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs  

E-Print Network [OSTI]

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs Alvaro L.G.A. Coutinho In this work, parallel finite element techniques for the simulation of tracer injection in oil reservoirs. Supercomputers have made it possible to consider global reservoir effects which can not be represented using

Coutinho, Alvaro L. G. A.

251

Analysis of reservoir performance and forecasting for the eastern area of the C-2 Reservoir, Lake Maracaibo, Venezuela  

E-Print Network [OSTI]

This research developed a numerical simulation based on the latest reservoir description to evaluate the feasibility of new infill wells to maximize the recovery specifically in the eastern region of the reservoir operated by Petroleos de Venezuela...

Urdaneta Anez, Jackeline C

2001-01-01T23:59:59.000Z

252

Integrated Multi-Well Reservoir and Decision Model to Determine Optimal Well Spacing in Unconventional Gas Reservoirs  

E-Print Network [OSTI]

Optimizing well spacing in unconventional gas reservoirs is difficult due to complex heterogeneity, large variability and uncertainty in reservoir properties, and lack of data that increase the production uncertainty. Previous methods are either...

Ortiz Prada, Rubiel Paul

2012-02-14T23:59:59.000Z

253

Reducing the Probability of Capture into Resonance  

E-Print Network [OSTI]

A migrating planet can capture planetesimals into mean motion resonances. However, resonant trapping can be prevented when the drift or migration rate is sufficiently high. Using a simple Hamiltonian system for first and second order resonances, we explore how the capture probability depends on the order of the resonance, drift rate and initial particle eccentricity. We present scaling factors as a function of the planet mass and resonance strength to estimate the planetary migration rate above which the capture probability drops to less than 1/2. Applying our framework to multiple extra solar planetary systems that have two planets locked in resonance, we estimate lower limits for the outer planet's migration rate allowing resonance capture of the inner planet. Mean motion resonances are comprised of multiple resonant subterms. We find that the corotation subterm can reduce the probability of capture when the planet eccentricity is above a critical value. We present factors that can be used to estimate this critical planet eccentricity. Applying our framework to the migration of Neptune, we find that Neptune's eccentricity is near the critical value that would make its 2:1 resonance fail to capture twotinos. The capture probability is affected by the separation between resonant subterms and so is also a function of the precession rates of the longitudes of periapse of both planet and particle near resonance.

Alice C. Quillen

2005-11-03T23:59:59.000Z

254

Characterization and reservoir evaluation of a hydraulically fractured, shaly gas reservoir  

E-Print Network [OSTI]

, Shaly Gas Reservoir. ( December 1991 ) Cesar Alfonso Santiago Molina, Ingeniero de Petroleos, Universidad Nacional de Colombia; Chair of Advisory Committee: Dr. Steven W. Poston Shale content in reservoir rocks affect their petrophysical properties... for their support. The author also wishes to express his deepest appreciation to Dr. H. Chen for all the help and suggestions he made in this study. The author expresses his gratitude to every one in Empresa Colombiana de Petroleos, Ecopetrol, who made possible...

Santiago Molina, Cesar Alfonso

1991-01-01T23:59:59.000Z

255

Increasing Waterflood Reserves in the Wilmington Oil Field through Improved Reservoir Characterization and Reservoir Management  

SciTech Connect (OSTI)

This project used advanced reservoir characterization tools, including the pulsed acoustic cased-hole logging tool, geologic three-dimensional (3-D) modeling software, and commercially available reservoir management software to identify sands with remaining high oil saturation following waterflood. Production from the identified high oil saturated sands was stimulated by recompleting existing production and injection wells in these sands using conventional means as well as a short radius redrill candidate.

Clarke, D.; Koerner, R.; Moos D.; Nguyen, J.; Phillips, C.; Tagbor, K.; Walker, S.

1999-04-05T23:59:59.000Z

256

Functional Wigner representation of quantum dynamics of Bose-Einstein condensate  

SciTech Connect (OSTI)

We develop a method of simulating the full quantum field dynamics of multi-mode multi-component Bose-Einstein condensates in a trap. We use the truncated Wigner representation to obtain a probabilistic theory that can be sampled. This method produces c-number stochastic equations which may be solved using conventional stochastic methods. The technique is valid for large mode occupation numbers. We give a detailed derivation of methods of functional Wigner representation appropriate for quantum fields. Our approach describes spatial evolution of spinor components and properly accounts for nonlinear losses. Such techniques are applicable to calculating the leading quantum corrections, including effects such as quantum squeezing, entanglement, EPR correlations, and interactions with engineered nonlinear reservoirs. By using a consistent expansion in the inverse density, we are able to explain an inconsistency in the nonlinear loss equations found by earlier authors.

Opanchuk, B.; Drummond, P. D. [Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Hawthorn VIC 3122 (Australia)] [Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Hawthorn VIC 3122 (Australia)

2013-04-15T23:59:59.000Z

257

Binary Capture Rates for Massive Protostars  

E-Print Network [OSTI]

The high multiplicity of massive stars in dense, young clusters is established early in their evolution. The mechanism behind this remains unresolved. Recent results suggest that massive protostars may capture companions through disk interactions with much higher efficiency than their solar mass counterparts. However, this conclusion is based on analytic determinations of capture rates and estimates of the robustness of the resulting binaries. We present the results of coupled n-body and SPH simulations of star-disk encounters to further test the idea that disk-captured binaries contribute to the observed multiplicity of massive stars.

Nickolas Moeckel; John Bally

2007-04-09T23:59:59.000Z

258

Retrofitting CO{sub 2} capture  

SciTech Connect (OSTI)

Retrofitting existing fossil-fueled plants with the first available carbon dioxide capture technologies could play an important role in paving the way for development of lower-cost, reliable carbon capture and storage systems. EPRI research is helping utilities better understand the engineering challenges and economic consequences. Studies are being conducted on retrofitting five different plants with advanced amine PCC technologies. Other studies include: process optimization studies; valuing operating flexibility; CO{sub 2} capture for CTCC plants; and assessing the impact of climate policy on retrofitting investment.

Weisel, J.

2009-07-01T23:59:59.000Z

259

Comparative Assessment of Status and Opportunities for CO2 Capture and Storage and Radioactive Waste Disposal in North America  

E-Print Network [OSTI]

sequestration in abandoned oil reservoirs: The Internationalhydrocarbon reservoirs where there are many abandoned wells

Oldenburg, C.

2010-01-01T23:59:59.000Z

260

GHG Emissions from Hydropower Reservoirs The role of hydropower reservoirs in contributing to greenhouse gas (GHG) emissions is poorly  

E-Print Network [OSTI]

to characterize carbon dioxide (CO2) and methane (CH4) emissions from hydropower reservoirs in the US SoutheastGHG Emissions from Hydropower Reservoirs The role of hydropower reservoirs in contributing to greenhouse gas (GHG) emissions is poorly understood, but recent studies have indicated that GHG emissions

Note: This page contains sample records for the topic "representations capturing reservoir" 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

High School Students' Understandings and Representations of the Electric Field  

E-Print Network [OSTI]

This study investigates the understandings and representations of the electric field expressed by Chinese high school students ages 15 to 16 who have not yet received high school-level physics instruction. The literature has reported students' ideas of the electric field post-instruction as indicated by their performance on textbook-style questionnaires. However, by relying on measures such as questionnaires, previous research has inadequately captured the thinking process that led students to answer questions in the ways that they did. The present study portrays the beginning of this process by closely examining students' understandings pre-instruction. The participants in this study were asked to engage in a lesson that included informal group tasks that involved playing a Web-based hockey game that replicated an electric field and drawing comic strips that used charges as characters. The lesson was videotaped, students' work was collected, and three students were interviewed afterward to ascertain more det...

Cao, Ying

2014-01-01T23:59:59.000Z

262

Annual Report: Carbon Capture Simulation Initiative (CCSI) (30 September 2012)  

SciTech Connect (OSTI)

The Carbon Capture Simulation Initiative (CCSI) is a partnership among national laboratories, industry and academic institutions that is developing and deploying state-of-the-art computational modeling and simulation tools to accelerate the commercialization of carbon capture technologies from discovery to development, demonstration, and ultimately the widespread deployment to hundreds of power plants. The CCSI Toolset will provide end users in industry with a comprehensive, integrated suite of scientifically validated models, with uncertainty quantification (UQ), optimization, risk analysis and decision making capabilities. The CCSI Toolset incorporates commercial and open-source software currently in use by industry and is also developing new software tools as necessary to fill technology gaps identified during execution of the project. Ultimately, the CCSI Toolset will (1) enable promising concepts to be more quickly identified through rapid computational screening of devices and processes; (2) reduce the time to design and troubleshoot new devices and processes; (3) quantify the technical risk in taking technology from laboratory-scale to commercial-scale; and (4) stabilize deployment costs more quickly by replacing some of the physical operational tests with virtual power plant simulations. CCSI is organized into 8 technical elements that fall under two focus areas. The first focus area (Physicochemical Models and Data) addresses the steps necessary to model and simulate the various technologies and processes needed to bring a new Carbon Capture and Storage (CCS) technology into production. The second focus area (Analysis & Software) is developing the software infrastructure to integrate the various components and implement the tools that are needed to make quantifiable decisions regarding the viability of new CCS technologies. CCSI also has an Industry Advisory Board (IAB). By working closely with industry from the inception of the project to identify industrial challenge problems, CCSI ensures that the simulation tools are developed for the carbon capture technologies of most relevance to industry. CCSI is led by the National Energy Technology Laboratory (NETL) and leverages the Department of Energy (DOE) national laboratories? core strengths in modeling and simulation, bringing together the best capabilities at NETL, Los Alamos National Laboratory (LANL), Lawrence Berkeley National Laboratory (LBNL), Lawrence Livermore National Laboratory (LLNL), and Pacific Northwest National Laboratory (PNNL). The CCSI?s industrial partners provide representation from the power generation industry, equipment manufacturers, technology providers and engineering and construction firms. The CCSI?s academic participants (Carnegie Mellon University, Princeton University, West Virginia University, and Boston University) bring unparalleled expertise in multiphase flow reactors, combustion, process synthesis and optimization, planning and scheduling, and process control techniques for energy processes. During Fiscal Year (FY) 12, CCSI released its first set of computational tools and models. This pre-release, a year ahead of the originally planned first release, is the result of intense industry interest in getting early access to the tools and the phenomenal progress of the CCSI technical team. These initial components of the CCSI Toolset provide new models and computational capabilities that will accelerate the commercial development of carbon capture technologies as well as related technologies, such as those found in the power, refining, chemicals, and gas production industries. The release consists of new tools for process synthesis and optimization to help identify promising concepts more quickly, new physics-based models of potential capture equipment and processes that will reduce the time to design and troubleshoot new systems, a framework to quantify the uncertainty of model predictions, and various enabling tools that provide new capabilities such as creating reduced order models (ROMs) from reacting multiphase flow

Miller, David C; Syamlal, Madhava; Cottrell, Roger; Kress, Joel D; Sun, Xin; Sundaresan, S; Sahinidis, Nikolaos V; Zitney, Stephen E; Bhattacharyya, D; Agarwal, Deb; Tong, Charles; Lin, Guang; Dale, Crystal; Engel, Dave; Calafiura, Paolo; Beattie, Keith

2012-09-30T23:59:59.000Z

263

Regulating carbon dioxide capture and storage  

E-Print Network [OSTI]

This essay examines several legal, regulatory and organizational issues that need to be addressed to create an effective regulatory regime for carbon dioxide capture and storage ("CCS"). Legal, regulatory, and organizational ...

De Figueiredo, Mark A.

2007-01-01T23:59:59.000Z

264

Oscillations in the GSI electron capture experiment  

E-Print Network [OSTI]

In a recent paper, oscillations observed in the electron capture probability were attributed to the mixing of neutrino mass eigenstates. This paper is shown to be in error in two respects.

H. Burkhardt; J. Lowe; G. J. Stephenson Jr.; T. Goldman; and Bruce H. J. McKellar

2008-04-07T23:59:59.000Z

265

Electrochemically mediated separation for carbon capture  

E-Print Network [OSTI]

Carbon capture technology has been proposed as an effective approach for the mitigation of anthropogenic CO[subscript 2] emissions. Thermal-swing separation technologies based on wet chemical scrubbing show potential for ...

Simeon, Fritz

266

Economic assessment of CO? capture and disposal  

E-Print Network [OSTI]

A multi-sector multi-region general equilibrium model of economic growth and emissions is used to explore the conditions that will determine the market penetration of CO2 capture and disposal technology.

Eckaus, Richard S.; Jacoby, Henry D.; Ellerman, A. Denny.; Leung, Wing-Chi.; Yang, Zili.

267

Computer simulation of neutron capture therapy.  

E-Print Network [OSTI]

Analytical methods are developed to simulate on a large digital computer the production and use of reactor neutron beams f or boron capture therapy of brain tumors. The simulation accounts for radiation dose distributions ...

Olson, Arne Peter

1967-01-01T23:59:59.000Z

268

Computer simulation of neutron capture therapy  

E-Print Network [OSTI]

Analytical methods are developed to simulate on a large digital computer the production and use of reactor neutron beams f or boron capture therapy of brain tumors. The simulation accounts for radiation dose distributions ...

Olson, Arne Peter

1967-01-01T23:59:59.000Z

269

Capturing Chemistry in XML/CML  

E-Print Network [OSTI]

Chemical Markup Language (CML) is an XML-conformant Schema that describes molecules, spectra, reactions, and computational chemistry. It is capable of capturing the chemistry in a variety of current publications and is becoming adopted by many...

Townsend, Joseph A; Adams, Sam; Goodman, Jonathan M; Murray-Rust, Peter; Waudby, Chris A

270

Determination of thermal neutron capture gamma yields  

E-Print Network [OSTI]

A method of analysing Ge(Li) thermal neutron capture gamma spectra to obtain total gamma yields has been developed. Tie method determines both the yields from the well resolved gamma peaks in a spectrum as well as the gamma ...

Harper, Thomas Lawrence

1969-01-01T23:59:59.000Z

271

Determination of thermal neutron capture gamma yields.  

E-Print Network [OSTI]

A method of analysing Ge(Li) thermal neutron capture gamma spectra to obtain total gamma yields has been developed. Tie method determines both the yields from the well resolved gamma peaks in a spectrum as well as the gamma ...

Harper, Thomas Lawrence

1969-01-01T23:59:59.000Z

272

Heavy oil reservoirs recoverable by thermal technology. Annual report  

SciTech Connect (OSTI)

This volume contains reservoir, production, and project data for target reservoirs which contain heavy oil in the 8 to 25/sup 0/ API gravity range and are susceptible to recovery by in situ combustion and steam drive. The reservoirs for steam recovery are less than 2500 feet deep to comply with state-of-the-art technology. In cases where one reservoir would be a target for in situ combustion or steam drive, that reservoir is reported in both sections. Data were collectd from three source types: hands-on (A), once-removed (B), and twice-removed (C). In all cases, data were sought depicting and characterizing individual reservoirs as opposed to data covering an entire field with more than one producing interval or reservoir. The data sources are listed at the end of each case. This volume also contains a complete listing of operators and projects, as well as a bibliography of source material.

Kujawa, P.

1981-02-01T23:59:59.000Z

273

Multicomponent 3-D characterization of a coalbed methane reservoir  

SciTech Connect (OSTI)

Methane is produced from fractured coalbed reservoirs at Cedar Hill Field in the San Juan Basin. Fracturing and local stress are critical to production because of the absence of matrix permeability in the coals. Knowledge of the direction of open fractures, the degree of fracturing, reservoir pressure, and compartmentalization is required to understand the flow of fluids through the reservoir. A multicomponent 3-D seismic survey was acquired to aid in coalbed methane reservoir characterization. Coalbed reservoir heterogeneities, including isolated pressure cells, zones of increased fracture density, and variable fracture directions, have been interpreted through the analysis of the multicomponent data and integration with petrophysical and reservoir engineering studies. Strike-slip faults, which compartmentalize the reservoir, have been identified by structural interpretation of the 3-D P-wave seismic data. These faults form boundaries for pressure cells that have been identified by P-wave reflection amplitude anomalies.

Shuck, E.L. [Advance Geophysical Corp., Englewood, CO (United States)] [Advance Geophysical Corp., Englewood, CO (United States); Davis, T.L.; Benson, R.D. [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.] [Colorado School of Mines, Golden, CO (United States). Geophysics Dept.

1996-03-01T23:59:59.000Z

274

CAPTURE OF TROJANS BY JUMPING JUPITER  

SciTech Connect (OSTI)

Jupiter Trojans are thought to be survivors of a much larger population of planetesimals that existed in the planetary region when planets formed. They can provide important constraints on the mass and properties of the planetesimal disk, and its dispersal during planet migration. Here, we tested a possibility that the Trojans were captured during the early dynamical instability among the outer planets (aka the Nice model), when the semimajor axis of Jupiter was changing as a result of scattering encounters with an ice giant. The capture occurs in this model when Jupiter's orbit and its Lagrange points become radially displaced in a scattering event and fall into a region populated by planetesimals (that previously evolved from their natal transplanetary disk to {approx}5 AU during the instability). Our numerical simulations of the new capture model, hereafter jump capture, satisfactorily reproduce the orbital distribution of the Trojans and their total mass. The jump capture is potentially capable of explaining the observed asymmetry in the number of leading and trailing Trojans. We find that the capture probability is (6-8) Multiplication-Sign 10{sup -7} for each particle in the original transplanetary disk, implying that the disk contained (3-4) Multiplication-Sign 10{sup 7} planetesimals with absolute magnitude H < 9 (corresponding to diameter D = 80 km for a 7% albedo). The disk mass inferred from this work, M{sub disk} {approx} 14-28 M{sub Earth}, is consistent with the mass deduced from recent dynamical simulations of the planetary instability.

Nesvorny, David [Department of Space Studies, Southwest Research Institute, 1050 Walnut St., Suite 300, Boulder, CO 80302 (United States); Vokrouhlicky, David [Institute of Astronomy, Charles University, V Holesovickach 2, 180 00 Prague 8 (Czech Republic); Morbidelli, Alessandro [Departement Cassiopee, University of Nice, CNRS, Observatoire de la Cote d'Azur, Nice, F-06304 (France)

2013-05-01T23:59:59.000Z

275

Quantification of Libby Reservoir Levels Needed to Maintain or Enhance Reservoir Fisheries, 1983-1987 Methods and Data Summary.  

SciTech Connect (OSTI)

Libby Reservoir was created under an International Columbia River Treaty between the United States and Canada for cooperative water development of the Columbia River Basin. The authorized purpose of the dam is to provide power, flood control, and navigation and other benefits. Research began in May 1983 to determine how operations of Libby dam impact the reservoir fishery and to suggest ways to lessen these impacts. This study is unique in that it was designed to accomplish its goal through detailed information gathering on every trophic level in the reservoir system and integration of this information into a quantitative computer model. The specific study objectives are to: quantify available reservoir habitat, determine abundance, growth and distribution of fish within the reservoir and potential recruitment of salmonids from Libby Reservoir tributaries within the United States, determine abundance and availability of food organisms for fish in the reservoir, quantify fish use of available food items, develop relationships between reservoir drawdown and reservoir habitat for fish and fish food organisms, and estimate impacts of reservoir operation on the reservoir fishery. 115 refs., 22 figs., 51 tabs.

Chisholm, Ian

1989-12-01T23:59:59.000Z

276

Overspill avalanching in a dense reservoir network  

E-Print Network [OSTI]

Sustainability of communities, agriculture, and industry is strongly dependent on an effective storage and supply of water resources. In some regions the economic growth has led to a level of water demand which can only be accomplished through efficient reservoir networks. Such infrastructures are not always planned at larger scale but rather made by farmers according to their local needs of irrigation during droughts. Based on extensive data from the upper Jaguaribe basin, one of the world's largest system of reservoirs, located in the Brazilian semiarid northeast, we reveal that surprisingly it self-organizes into a scale-free network exhibiting also a power-law in the distribution of the lakes and avalanches of discharges. With a new self-organized-criticality-type model we manage to explain the novel critical exponents. Implementing a flow model we are able to reproduce the measured overspill evolution providing a tool for catastrophe mitigation and future planning.

Mamede, G L; Schneider, C M; de Araújo, J C; Herrmann, H J

2012-01-01T23:59:59.000Z

277

Innovative MIOR Process Utilizing Indigenous Reservoir Constituents  

SciTech Connect (OSTI)

This research program is directed at improving the knowledge of reservoir ecology and developing practical microbial solutions for improving oil production. The goal is to identify indigenous microbial populations which can produce beneficial metabolic products and develop a methodology to stimulate those select microbes with nutrient amendments to increase oil recovery. This microbial technology has the capability of producing multiple oil-releasing agents. Experimental laboratory work is underway. Microbial cultures have been isolated from produced water samples. Comparative laboratory studies demonstrating in situ production of microbial products as oil recovery agents were conducted in sand packs with natural field waters with cultures and conditions representative of oil reservoirs. Field pilot studies are underway.

D. O. Hitzman; A. K. Stepp; D. M. Dennis; L. R. Graumann

2003-03-31T23:59:59.000Z

278

Energy Department Invests to Drive Down Costs of Carbon Capture...  

Energy Savers [EERE]

Invests to Drive Down Costs of Carbon Capture, Support Reductions in Greenhouse Gas Pollution Energy Department Invests to Drive Down Costs of Carbon Capture, Support Reductions...

279

Knowledge Capture and Transfer Program | Department of Energy  

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

Knowledge Capture and Transfer Program Knowledge Capture and Transfer Program The Office of Learning and Workforce Development is working with Heads of Departmental Elements, DOE...

280

World's Largest Post-Combustion Carbon Capture Project Begins...  

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

World's Largest Post-Combustion Carbon Capture Project Begins Construction World's Largest Post-Combustion Carbon Capture Project Begins Construction July 15, 2014 - 9:55am Addthis...

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Knowledge Capture and Transfer Program (KCTP) "Newly Created...  

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

Knowledge Capture and Transfer Program (KCTP) "Newly Created" Powerpedia Page Knowledge Capture and Transfer Program (KCTP) "Newly Created" Powerpedia Page June 3, 2014 - 1:36pm...

282

Selective Capture of Cesium and Thallium from Natural Waters...  

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

Capture of Cesium and Thallium from Natural Waters and Simulated Wastes with Copper Ferrocyanide Functionalized Selective Capture of Cesium and Thallium from Natural Waters and...

283

New Computer Model Pinpoints Prime Materials for Carbon Capture  

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

Model Pinpoints Prime Materials for Carbon Capture New Computer Model Pinpoints Prime Materials for Carbon Capture July 17, 2012 | Tags: Dirac, Energy Technologies, Materials...

284

Report to the President on Capturing Domestic Competitive Advantage...  

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

Capturing Domestic Competitive Advantage in Advanced Manufacturing Report to the President on Capturing Domestic Competitive Advantage in Advanced Manufacturing pcastjuly2012.pdf...

285

Dynamics of soft Nanomaterials captured by transmission electron...  

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

Dynamics of soft Nanomaterials captured by transmission electron microscopy in liquid water. Dynamics of soft Nanomaterials captured by transmission electron microscopy in liquid...

286

Advanced Post-Combustion CO2 Capture Prepared for the  

E-Print Network [OSTI]

Advanced Post-Combustion CO2 Capture Prepared for the Clean Air Task Force under a grant from...................................................................................... 3 2. Current Status of Post-Combustion Capture

287

NETL emphasizes CO{sub 2} capture from existing plants  

SciTech Connect (OSTI)

This paper gives brief description of several carbon dioxide capture projects that were directed toward a broader range of capture technologies.

NONE

2008-04-01T23:59:59.000Z

288

CO2 Capture and Storage Project, Education and Training Center...  

Energy Savers [EERE]

Industrial Carbon Capture and Storage (ICCS) Project is one of the nation's largest carbon capture and storage endeavors. Part of the project includes the National...

289

Readout of Secretary Chu Meetings on Carbon Capture and Sequestration...  

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

of Secretary Chu Meetings on Carbon Capture and Sequestration and State Grid Readout of Secretary Chu Meetings on Carbon Capture and Sequestration and State Grid July 16, 2009 -...

290

Secretary Chu Announces $3 Billion Investment for Carbon Capture...  

Office of Environmental Management (EM)

3 Billion Investment for Carbon Capture and Sequestration Secretary Chu Announces 3 Billion Investment for Carbon Capture and Sequestration December 4, 2009 - 12:00am Addthis...

291

Water Challenges for Geologic Carbon Capture and Sequestration  

E-Print Network [OSTI]

and HB 90:Carbon capture and sequestration, http://legisweb.conference on carbon capture and sequestration, Pittsburgh,The DOE’s Regional Carbon Sequestration Partnerships are

Newmark, Robin L.; Friedmann, Samuel J.; Carroll, Susan A.

2010-01-01T23:59:59.000Z

292

EFRC Carbon Capture and Sequestration Activities at NERSC  

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

EFRC Carbon Capture and Sequestration Activities at NERSC EFRC Carbon Capture and Sequestration Activities at NERSC Why it Matters: Carbon dioxide (CO2) gas is considered to be...

293

Strategies for demonstration and early deployment of carbon capture and storage : a technical and economic assessment of capture percentage  

E-Print Network [OSTI]

Carbon capture and storage (CCS) is a critical technology for reducing greenhouse gas emissions from electricity production by coal-fired power plants. However, full capture (capture of nominally 90% of emissions) has ...

Hildebrand, Ashleigh Nicole

2009-01-01T23:59:59.000Z

294

Viability of Using Markerless Motion Capture; Lönsamheten av att använda Markerless Motion Capture.  

E-Print Network [OSTI]

?? This thesis presents a study on how to create a production pipeline using a markerless motion capture system for the creation of animations in… (more)

Mattsson, Viktor

2014-01-01T23:59:59.000Z

295

Experimental production characteristics of anticlinal reservoirs  

E-Print Network [OSTI]

The production characteristics of an anticlinal model reservoir have been studied. The results show the effects of production rate, structural well location, well density, and fluid properties on the oil and gas recovery. The results of this study indicate... the need to shut in high gas- oil ratio wells in order to achieve maximum recovery. An increase in well density increased recovery significantly for both upstructure and downstructure wells. An increase in the production rate appeared to increase re...

Williams, Charles David

1959-01-01T23:59:59.000Z

296

Innovative MIOR Process Utilizing Indigenous Reservoir Constituents  

SciTech Connect (OSTI)

This research program was directed at improving the knowledge of reservoir ecology and developing practical microbial solutions for improving oil production. The goal was to identify indigenous microbial populations which can produce beneficial metabolic products and develop a methodology to stimulate those select microbes with inorganic nutrient amendments to increase oil recovery. This microbial technology has the capability of producing multiple oil-releasing agents.

Hitzman, D.O.; Stepp, A.K.; Dennis, D.M.; Graumann, L.R.

2003-02-11T23:59:59.000Z

297

Technology and Economics Affecting Unconventional Reservoir Development  

E-Print Network [OSTI]

5.1.1 Low-Permeability Oil (Chalk Reservoirs) ???...? 47 5.1.1.1 Austin Chalk Formation????????? 48 5.1.1.1.1 Production History?????????. 49 5.1.2 Oil Shale???????????????..??. 53 5.1.2.1 Bakken Shale Formation... are more sensitive to certain type of resources such as oil shales and gas hydrates????????????????????.. 3 1.2 Oil shale resources in the Green River formation are giant accumulations waiting for economical exploitation???????????...???... 4 1...

Flores Campero, Cecilia P.

2010-01-15T23:59:59.000Z

298

Online political communication strategies: MEPs, e-representation and self-representation  

E-Print Network [OSTI]

1 Online political communication strategies: MEPs, e-representation and self- representation, Bournemouth University. Dr Lilleker's expertise is in public engagement in politics, and in particular how widely on the professionalisation and marketisation of political communication including Political

Paris-Sud XI, Université de

299

Gendering Representation: Parties, Institutions, and the Under-Representation Of Women In Brazil's State Legislatures  

E-Print Network [OSTI]

This dissertation provides insights on what influences women's descriptive representation in state legislatures in Brazil. The study of female representation in Brazil provides for a good case study as the country uses a ...

dos Santos, Pedro G.

2012-12-31T23:59:59.000Z

300

SEISMIC DETERMINATION OF RESERVOIR HETEROGENEITY: APPLICATION TO THE CHARACTERIZATION OF HEAVY OIL RESERVOIRS  

SciTech Connect (OSTI)

The objective of the project was to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study focused on West Coalinga Field in California. The project initially attempted to build reservoir models based on different geologic and geophysical data independently using different tools, then to compare the results, and ultimately to integrate them all. We learned, however, that this strategy was impractical. The different data and tools need to be integrated from the beginning because they are all interrelated. This report describes a new approach to geostatistical modeling and presents an integration of geology and geophysics to explain the formation of the complex Coalinga reservoir.

Matthias G. Imhof; James W. Castle

2005-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

EVOLUTION OF PROGENITORS FOR ELECTRON CAPTURE SUPERNOVAE  

SciTech Connect (OSTI)

We provide progenitor models for electron capture supernovae (ECSNe) with detailed evolutionary calculation. We include minor electron capture nuclei using a large nuclear reaction network with updated reaction rates. For electron capture, the Coulomb correction of rates is treated and the contribution from neutron-rich isotopes is taken into account in each nuclear statistical equilibrium (NSE) composition. We calculate the evolution of the most massive super asymptotic giant branch stars and show that these stars undergo off-center carbon burning and form ONe cores at the center. These cores become heavier up to the critical mass of 1.367 M{sub Sun} and keep contracting even after the initiation of O+Ne deflagration. Inclusion of minor electron capture nuclei causes convective URCA cooling during the contraction phase, but the effect on the progenitor evolution is small. On the other hand, electron capture by neutron-rich isotopes in the NSE region has a more significant effect. We discuss the uniqueness of the critical core mass for ECSNe and the effect of wind mass loss on the plausibility of our models for ECSN progenitors.

Takahashi, Koh; Umeda, Hideyuki [Department of Astronomy, University of Tokyo, Tokyo 113-0033 (Japan); Yoshida, Takashi, E-mail: ktakahashi@astron.s.u-tokyo.ac.jp, E-mail: umeda@astron.s.u-tokyo.ac.jp, E-mail: yoshida@yukawa.kyoto-u.ac.jp [Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

2013-07-01T23:59:59.000Z

302

Cherokee Reservoir: supplement to factors affecting water quality in Cherokee Reservoir  

SciTech Connect (OSTI)

Several rates and/or measurements were assumed in preparation of the Factors Affecting Water Quality in Cherokee Reservoir report prepared by Iwanski, et al. (1980). The following discussions and data were generated to support future modeling efforts of Cherokee Reservoir water quality. These discussions are not wholly intended to define conclusions or new findings, but rather lend support to assumed parameters in the modeling effort. The data include: (1) long-term BOD analyses; (2) limiting nutrient studies algal assays; (3) phytoplankton biomass; (4) primary productivity; and (5) solids transport. 10 references, 3 figures, 5 tables. (ACR)

Poppe, W.L.

1981-09-14T23:59:59.000Z

303

Planetesimal Capture in the Disk Instability Model  

E-Print Network [OSTI]

We follow the contraction and evolution of a typical Jupiter-mass clump created by the disk instability mechanism, and compute the rate of planetesimal capture during this evolution. We show that such a clump has a slow contraction phase lasting ~3x10^5 years. By following the trajectories of planetesimals as they pass through the envelope of the protoplanet, we compute the cross-section for planetesimal capture at all stages of the protoplanet's evolution. We show that the protoplanet can capture a large fraction of the solid material in its feeding zone, which will lead to an enrichment of the protoplanet in heavy elements. The exact amount of this enrichment depends upon, but is not very sensitive to the size and random speed of the planetesimals.

Ravit Helled; Morris Podolak; Attay Kovetz

2006-06-29T23:59:59.000Z

304

Thermal-neutron capture in light nuclei  

SciTech Connect (OSTI)

We have made considerable progress toward the goal of carrying out thermal-neutron capture {gamma}-ray measurements on all stable isotopes below A=60. Information processed till now has significantly augmented the existing knowledge on the detailed nuclear level structure of many light nuclides. Most of this knowledge comes from our {gamma}-ray energies, level placements, and branching ratios of secondary transitions between low-lying states. Spectroscopic information is also contained in the cross sections of the primary transitions originating from the capturing state. This is deduced from the success of ``direct`` theories of neutron capture for many nuclides, especially those of light and near closed-shell character. 23 refs, 1 tab, 3 figs.

Raman, S. [Oak Ridge National Lab., TN (United States); Jurney, E.T.; Lynn, J.E. [Los Alamos National Lab., NM (United States)

1996-10-01T23:59:59.000Z

305

Muon capture rates within the projected QRPA  

E-Print Network [OSTI]

The conservation of the number of particles within the QRPA plays an important role in the evaluation muon capture rates in all light nuclei with A \\precsim 30 . The violation of the CVC by the Coulomb field in this mass region is of minor importance, but this effect could be quite relevant for medium and heavy nuclei studied previously. The extreme sensitivity of the muon capture rates on the 'pp' coupling strength in nuclei with large neutron excess when described within the QRPA is pointed out. We reckon that the comparison between theory and data for the inclusive muon capture is not a fully satisfactory test on the nuclear model that is used. The exclusive muon transitions are much more robust for such a purpose.

Danilo Sande Santos; Arturo R. Samana; Francisco Krmpoti?; Alejandro J. Dimarco

2012-03-03T23:59:59.000Z

306

Relativistic QRPA calculation of muon capture rates  

E-Print Network [OSTI]

The relativistic proton-neutron quasiparticle random phase approximation (PN-RQRPA) is applied in the calculation of total muon capture rates on a large set of nuclei from $^{12}$C to $^{244}$Pu, for which experimental values are available. The microscopic theoretical framework is based on the Relativistic Hartree-Bogoliubov (RHB) model for the nuclear ground state, and transitions to excited states are calculated using the PN-RQRPA. The calculation is fully consistent, i.e., the same interactions are used both in the RHB equations that determine the quasiparticle basis, and in the matrix equations of the PN-RQRPA. The calculated capture rates are sensitive to the in-medium quenching of the axial-vector coupling constant. By reducing this constant from its free-nucleon value $g_A = 1.262$ by 10% for all multipole transitions, the calculation reproduces the experimental muon capture rates to better than 10% accuracy.

T. Marketin; N. Paar; T. Niksic; D. Vretenar

2009-03-30T23:59:59.000Z

307

Thermal Neutron Capture y's (CapGam)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The National Nuclear Data Center (NNDC) presents two tables showing energy and photon intensity with uncertainties of gamma rays as seen in thermal-neutron capture.  One table is organized in ascending order of gamma energy, and the second is organized by Z, A of the target. In the energy-ordered table the three strongest transitions are indicated in each case. The nuclide given is the target nucleus in the capture reaction. The gamma energies given are in keV. The gamma intensities given are relative to 100 for the strongest transition. %I? (per 100 n-captures) for the strongest transition is given, where known. All data are taken from the Evaluated Nuclear Structure Data File (ENSDF), a computer file of evaluated nuclear structure data and from the eXperimental Unevaluated Nuclear Data List (XUNDL). (Specialized Interface)

308

Carbon Dioxide Capture DOI: 10.1002/anie.200902836  

E-Print Network [OSTI]

Carbon Dioxide Capture DOI: 10.1002/anie.200902836 Highly Selective CO2 Capture in Flexible 3D Coordination Polymer Networks** Hye-Sun Choi and Myunghyun Paik Suh* Carbon dioxide capture has been warming, and the development of efficient methods for capturing CO2 from industrial flue gas has become

Paik Suh, Myunghyun

309

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS.  

E-Print Network [OSTI]

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS. Adriano M. Garsia and Mark Haiman representations in various bi-degrees are given by the Macdonald coefficients Kµ. Assuming one fundamental the conjectures in various special cases. 1 #12;1. Introduction Macdonald in (1, 2) introduced a remarkable new

Haiman, Mark D.

310

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS.  

E-Print Network [OSTI]

A GRADED REPRESENTATION MODEL FOR MACDONALD'S POLYNOMIALS. Adriano M. Garsia and Mark Haiman representations in various bi­degrees are given by the Macdonald coefficients K â??¯ . Assuming one fundamental the conjectures in various special cases. 1 #12; 1. Introduction Macdonald in (1, 2) introduced a remarkable new

Haiman, Mark D.

311

3D Sparse Representations Lanusse F. a  

E-Print Network [OSTI]

3D Sparse Representations Lanusse F. a Starck J.-L. a Woiselle A. c Fadili M.J. b a Laboratoire AIM Securite, 95101 Argenteuil CEDEX, France. Abstract In this chapter we review a variety of 3D sparse representations developed in recent years and adapted to different kinds of 3D signals. In particular, we describe

Starck, Jean-Luc

312

NEST REPRESENTATIONS OF DIRECTED GRAPH ALGEBRAS  

E-Print Network [OSTI]

NEST REPRESENTATIONS OF DIRECTED GRAPH ALGEBRAS KENNETH R. DAVIDSON AND ELIAS KATSOULIS Abstract. This paper is a comprehensive study of the nest rep- resentations for the free semigroupoid algebra LG that the finite dimensional nest representations sep- arate the points in LG, and a fortiori, in T + (G

Katsoulis, Elias G.

313

Carbon Capture | netl.doe.gov  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N-Capture ofCapture CONTACTCapture

314

Geothermal Reservoir Technology Research Program: Abstracts of selected research projects  

SciTech Connect (OSTI)

Research projects are described in the following areas: geothermal exploration, mapping reservoir properties and reservoir monitoring, and well testing, simulation, and predicting reservoir performance. The objectives, technical approach, and project status of each project are presented. The background, research results, and future plans for each project are discussed. The names, addresses, and telephone and telefax numbers are given for the DOE program manager and the principal investigators. (MHR)

Reed, M.J. (ed.)

1993-03-01T23:59:59.000Z

315

Analysis of a geopressured gas reservoir using solution plot method  

E-Print Network [OSTI]

dependent formation compressibility and water influx require extensive study of the reservoir core samples and aquifer characteristics that are not commonly conducted. Poston and Chen solved this problem by re-arranging the material balance equation... of water compressibility (c~) and formation compressibility (c/ ). Studies of geopressured gas reservoirs have shown such reservoirs to be generally associated with either interbedded shales and or an aquifer. Each of these conditions can provide...

Hussain, Syed Muqeedul

1992-01-01T23:59:59.000Z

316

Oxygenation cost estimates for Cherokee, Douglas, and Norris reservoirs  

SciTech Connect (OSTI)

The capital and annual costs associated with reoxygenation of the turbine releases at Cherokee, Douglas and Norris Reservoirs using the small bubble injection technique developed for Ft. Patrick Henry Dam were computed. The weekly average dissolved oxygen (DO) deficits were computed for each reservoir for an average year (based on 16 years of records). The total annual cost of an oxygen supply and injection system for each reservoir is presented. 5 refs., 6 figs., 5 tabs.

Fain, T.G.

1980-10-01T23:59:59.000Z

317

Analyzing aquifers associated with gas reservoirs using aquifer influence functions  

E-Print Network [OSTI]

- teristics of the associated aquifer are vital to proper management of the reservoir. Typically, the reservoir and associated aquifer are located in a geologic setting which is highly faulted. Limited geologic and seismic knowledge exists about...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...

Targac, Gary Wayne

1988-01-01T23:59:59.000Z

318

Continuous Model Updating and Forecasting for a Naturally Fractured Reservoir  

E-Print Network [OSTI]

result in suboptimal decisions and huge disappointments (see Sec. 1.2.2) Reservoir simulation literature indicates that an acceptable level of matching historical reservoir performance is required to establish reliable forecasts. However, this does... and field production. Such capabilities enable continuous and automatic fine-tuning of production controls to optimize project economics and/or some well or reservoir performance stated objective. Remotely activated sub-surface valves on ?smart wells...

Almohammadi, Hisham

2013-07-26T23:59:59.000Z

319

Using precision gravity data in geothermal reservoir engineering modeling studies  

SciTech Connect (OSTI)

Precision gravity measurements taken at various times over a geothermal field can be used to derive information about influx into the reservoir. Output from a reservoir simulation program can be used to compute surface gravity fields and time histories. Comparison of such computer results with field-measured gravity data can add confidence to simulation models, and provide insight into reservoir processes. Such a comparison is made for the Bulalo field in the Philippines.

Atkinson, Paul G.; Pederseen, Jens R.

1988-01-01T23:59:59.000Z

320

Shale Oil Production Performance from a Stimulated Reservoir Volume.  

E-Print Network [OSTI]

??The horizontal well with multiple transverse fractures has proven to be an effective strategy for shale gas reservoir exploitation. Some operators are successfully producing shale… (more)

Chaudhary, Anish Singh

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada...  

Open Energy Info (EERE)

Reservoir-Scale Fracture Permeability in the Dixie Valley, Nevada, Geothermal Field Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper:...

322

Monitoring and Modeling Fluid Flow in a Developing EGS Reservoir...  

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

More Documents & Publications Imaging, Characterizing, and Modeling of Fracture Networks and Fluid Flow in EGS Reservoirs Detection and Characterization of Natural...

323

Application of thermal depletion model to geothermal reservoirs...  

Open Energy Info (EERE)

of thermal depletion model to geothermal reservoirs with fracture and pore permeability Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings:...

324

Dispersed Fluid Flow in Fractured Reservoirs- an Analysis of...  

Open Energy Info (EERE)

correlations. Downhole measurements of the tracer response exiting from discrete fracture zones permit further characterization of reservoir fluid flow behavior. Tracer...

325

FLUID INCLUSION STRATIGRAPHY: NEW METHOD FOR GEOTHERMAL RESERVOIR...  

Open Energy Info (EERE)

RESERVOIR ASSESSMENT PRELIMINARY RESULTS Abstract Fluid Inclusion Stratigraphy (FIS) is a new technique developed for the oil industry in order to map borehole fluids....

326

Prediction of coalbed methane reservoir performance with type curves.  

E-Print Network [OSTI]

??Coalbed methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoirs are dual-porosity systems that are characterized by… (more)

Bhavsar, Amol Bhaskar.

2005-01-01T23:59:59.000Z

327

WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS.  

E-Print Network [OSTI]

??WATERJETTING: A NEW DRILLING TECHNIQUE IN COALBED METHANE RESERVOIRS Applications of waterjeting to drill horizontal wells for the purpose of degassing coalbeds prior to mining… (more)

Funmilayo, Gbenga M.

2010-01-01T23:59:59.000Z

328

,"U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Coalbed Methane Proved Reserves New Reservoir Discoveries in Old Fields (Billion Cubic...

329

Impact of Langmuir isotherm on production behavior of CBM reservoirs.  

E-Print Network [OSTI]

??Coalbed Methane is an unconventional gas resource that consists of methane production from the coal seams. CBM reservoir performance is also influenced by the interrelationship… (more)

Arrey, Efundem Ndipanquang.

2004-01-01T23:59:59.000Z

330

Stress-dependent permeability on tight gas reservoirs.  

E-Print Network [OSTI]

??People in the oil and gas industry sometimes do not consider pressure-dependent permeability in reservoir performance calculations. It basically happens due to lack of lab… (more)

Rodriguez, Cesar Alexander

2005-01-01T23:59:59.000Z

331

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

U.S. Energy Information Administration (EIA) Indexed Site

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

332

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

U.S. Energy Information Administration (EIA) Indexed Site

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

333

animal reservoir hosts: Topics by E-print Network  

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

AND SIMULATION OF A MATURE FIELD USING AN INTEGRATED APPROACH University of Kansas - KU ScholarWorks Summary: Reservoir characterization involves various studies...

334

Variations in dissolved gas compositions of reservoir fluids...  

Open Energy Info (EERE)

A. E.; Copp, J. F. . 111991. Variations in dissolved gas compositions of reservoir fluids from the Coso geothermal field. Proceedings of () ; () : Sixteenth workshop on...

335

INJECTION AND THERMAL BREAKTHROUGH IN FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

and Pruess, K. , Analysis of injection testing of geothermalreservoirs: Geothermal Resoures Council, Vol. 4. , (into a fractured geothermal reservoir: Transactions, Vol. 4,

Bodvarsson, Gudmundur S.

2012-01-01T23:59:59.000Z

336

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon...  

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

chemistrybutchercarbonationmechanism.pdf More Documents & Publications Synchrotron X-ray Studies of Super-critical Carbon Dioxide Reservoir Rock Interfaces Innovative...

337

A reservoir management study of a mature oil field.  

E-Print Network [OSTI]

??An integrated geological, petrophysical and reservoir engineering review was performed for a mature, producing oil field. Like many older fields, important data are missing or… (more)

Peruzzi, Tave

2012-01-01T23:59:59.000Z

338

Seventeenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

PREFACE The Seventeenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 29-31, 1992. There were one hundred sixteen registered participants which equaled the attendance last year. Participants were from seven foreign countries: Italy, Japan, United Kingdom, France, Belgium, Mexico and New Zealand. Performance of many geothermal fields outside the United States was described in the papers. The Workshop Banquet Speaker was Dr. Raffaele Cataldi. Dr. Cataldi gave a talk on the highlights of his geothermal career. The Stanford Geothermal Program Reservoir Engineering Award for Excellence in Development of Geothermal Energy was awarded to Dr. Cataldi. Dr. Frank Miller presented the award at the banquet. Thirty-eight papers were presented at the Workshop with two papers submitted for publication only. Dr. Roland Horne opened the meeting and the key note speaker was J.E. ''Ted'' Mock who discussed the DOE Geothermal R. & D. Program. The talk focused on aiding long-term, cost effective private resource development. Technical papers were organized in twelve sessions concerning: geochemistry, hot dry rock, injection, geysers, modeling, and reservoir mechanics. Session chairmen were major contributors to the program and we thank: Sabodh Garg., Jim Lovekin, Jim Combs, Ben Barker, Marcel Lippmann, Glenn Horton, Steve Enedy, and John Counsil. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank Pat Ota, Ted Sumida, and Terri A. Ramey who also produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate audiovisual equipment and to Francois Groff who coordinated the meeting arrangements for the Workshop. Henry J. Ramey, Jr. Roland N. Horne Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook -vii

Ramey, H.J. Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E.; Cook, J.W. (Stanford Geothermal Program)

1992-01-31T23:59:59.000Z

339

APPLICATION OF RESERVOIR CHARACTERIZATION AND ADVANCED TECHNOLOGY TO IMPROVE RECOVERY AND ECONOMICS IN A LOWER QUALITY SHALLOW SHELF SANANDRES RESERVOIR  

SciTech Connect (OSTI)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; (7) Mobility control agents.

Unknown

2003-01-15T23:59:59.000Z

340

Application of Reservoir Characterization and Advanced Technology to Improve Recovery and Economics in a Lower Quality Shallow Shelf Carbonate Reservoir  

SciTech Connect (OSTI)

The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three dimensional (3-D) seismic; (3) Cross-well bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; and (7) Mobility control agents.

Taylor, Archie R.

1996-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Shear-slip analysis in multiphase fluid-flow reservoir engineering ap plications using TOUGH-FLAC  

E-Print Network [OSTI]

IN MULTIPHASE FLUID-FLOW RESERVOIR ENGINEERING APPLICATIONSin multiphase fluid-flow reservoir-engineering applications.in multiphase fluid-flow reservoir engineering applications.

Rutqvist, Jonny; Birkholzer, Jens; Cappa, Frederic; Oldenburg, Curt; Tsang, Chin-Fu

2008-01-01T23:59:59.000Z

342

CO2 gas/oil ratio prediction in a multi-component reservoir by combined seismic and electromagnetic imaging  

E-Print Network [OSTI]

CO 2 flooding of an oil reservoir are inverted to producein a complex reservoir containing oil, water, hydrocarbonincluding oil, water and gas) and reservoir pressure. The

Hoversten, G.M.; Gritto, Roland; Washbourne, John; Daley, Tom

2002-01-01T23:59:59.000Z

343

Magic Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpIncMAKGalway Bay IEOWCCatcher.pngWavemillMississippi. ItsReservoir

344

Quantification of uncertainty in reservoir simulations influenced by varying input geological parameters, Maria Reservoir, CaHu Field  

E-Print Network [OSTI]

QUANTIFICATION OF UNCERTAINTY IN RESERVOIR SIMULATIONS INFLUENCED BY VARYING INPUT GEOLOGICAL PARAMETERS, MARIA RESERVOIR, CAHU FIELD A Thesis by KARINE CHRYSTEL SCHEPERS Submitted to the Office of Graduate... BY VARYING INPUT GEOLOGICAL PARAMETERS, MARIA RESERVOIR, CAHU FIELD A Thesis by KARINE CHRYSTEL SCHEPERS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

Schepers, Karine Chrystel

2005-02-17T23:59:59.000Z

345

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

SciTech Connect (OSTI)

In this final report, we describe research results from Phase 2 of a technical/economic study of fossil hydrogen energy systems with carbon dioxide (CO{sub 2}) capture and storage (CCS). CO{sub 2} capture and storage, or alternatively, CO{sub 2} capture and sequestration, involves capturing CO{sub 2} from large point sources and then injecting it into deep underground reservoirs for long-term storage. By preventing CO{sub 2} emissions into the atmosphere, this technology has significant potential to reduce greenhouse gas (GHG) emissions from fossil-based facilities in the power and industrial sectors. Furthermore, the application of CCS to power plants and hydrogen production facilities can reduce CO{sub 2} emissions associated with electric vehicles (EVs) and hydrogen fuel cell vehicles (HFCVs) and, thus, can also improve GHG emissions in the transportation sector. This research specifically examines strategies for transitioning to large-scale coal-derived energy systems with CCS for both hydrogen fuel production and electricity generation. A particular emphasis is on the development of spatially-explicit modeling tools for examining how these energy systems might develop in real geographic regions. We employ an integrated modeling approach that addresses all infrastructure components involved in the transition to these energy systems. The overall objective is to better understand the system design issues and economics associated with the widespread deployment of hydrogen and CCS infrastructure in real regions. Specific objectives of this research are to: Develop improved techno-economic models for all components required for the deployment of both hydrogen and CCS infrastructure, Develop novel modeling methods that combine detailed spatial data with optimization tools to explore spatially-explicit transition strategies, Conduct regional case studies to explore how these energy systems might develop in different regions of the United States, and Examine how the design and cost of coal-based H{sub 2} and CCS infrastructure depend on geography and location.

Nils Johnson; Joan Ogden

2010-12-31T23:59:59.000Z

346

Incremental learning for automated knowledge capture.  

SciTech Connect (OSTI)

People responding to high-consequence national-security situations need tools to help them make the right decision quickly. The dynamic, time-critical, and ever-changing nature of these situations, especially those involving an adversary, require models of decision support that can dynamically react as a situation unfolds and changes. Automated knowledge capture is a key part of creating individualized models of decision making in many situations because it has been demonstrated as a very robust way to populate computational models of cognition. However, existing automated knowledge capture techniques only populate a knowledge model with data prior to its use, after which the knowledge model is static and unchanging. In contrast, humans, including our national-security adversaries, continually learn, adapt, and create new knowledge as they make decisions and witness their effect. This artificial dichotomy between creation and use exists because the majority of automated knowledge capture techniques are based on traditional batch machine-learning and statistical algorithms. These algorithms are primarily designed to optimize the accuracy of their predictions and only secondarily, if at all, concerned with issues such as speed, memory use, or ability to be incrementally updated. Thus, when new data arrives, batch algorithms used for automated knowledge capture currently require significant recomputation, frequently from scratch, which makes them ill suited for use in dynamic, timecritical, high-consequence decision making environments. In this work we seek to explore and expand upon the capabilities of dynamic, incremental models that can adapt to an ever-changing feature space.

Benz, Zachary O.; Basilico, Justin Derrick; Davis, Warren Leon,; Dixon, Kevin R.; Jones, Brian S.; Martin, Nathaniel; Wendt, Jeremy Daniel

2013-12-01T23:59:59.000Z

347

CO2 Capture with Enzyme Synthetic Analogue  

SciTech Connect (OSTI)

Project overview provides background on carbonic anhydrase transport mechanism for CO2 in the human body and proposed approach for ARPA-E project to create a synthetic enzyme analogue and utilize it in a membrane for CO2 capture from flue gas.

Harry Cordatos

2010-03-01T23:59:59.000Z

348

Carbon Dioxide Capture from Coal-Fired  

E-Print Network [OSTI]

. LFEE 2005-002 Report #12;#12;i ABSTRACT Investments in three coal-fired power generation technologiesCarbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis May 2005 MIT LFEE 2005 environment. The technologies evaluated are pulverized coal (PC), integrated coal gasification combined cycle

349

Porphyrins for boron neutron capture therapy  

DOE Patents [OSTI]

Novel compounds for treatment of brain tumors in Boron Neutron Capture Therapy are disclosed. A method for preparing the compounds as well as pharmaceutical compositions containing said compounds are also disclosed. The compounds are water soluble, non-toxic and non-labile boronated porphyrins which show significant uptake and retention in tumors.

Miura, Michiko (Center Moriches, NY); Gabel, Detlef (Bremen, DE)

1990-01-01T23:59:59.000Z

350

Capture and Utilisation of Landfill Gas  

E-Print Network [OSTI]

about 955 landfills that recovered biogas. The largest number of such landfills were in the USA landfills in Denmark that in total captured 5,800Nm3 of biogas per hour, equivalent to 276.4MW of contained #12;Biomass US DATA ON GENERATION OF BIOGAS AT LANDFILLS Eileen Berenyi, a Research Associate of EEC

Columbia University

351

Annual Report: Carbon Capture (30 September 2012)  

SciTech Connect (OSTI)

Capture of carbon dioxide (CO{sub 2}) is a critical component in reducing greenhouse gas emissions from fossil fuel-based processes. The Carbon Capture research to be performed is aimed at accelerating the development of efficient, cost-effective technologies which meet the post-combustion programmatic goal of capture of 90% of the CO{sub 2} produced from an existing coal-fired power plant with less than a 35% increase in the cost of electricity (COE), and the pre-combustion goal of 90% CO{sub 2} capture with less than a 10% increase in COE. The specific objective of this work is to develop innovative materials and approaches for the economic and efficient capture of CO{sub 2} from coal-based processes, and ultimately assess the performance of promising technologies at conditions representative of field application (i.e., slip stream evaluation). The Carbon Capture research includes seven core technical research areas: post-combustion solvents, sorbents, and membranes; pre-combustion solvents, sorbents, and membranes; and oxygen (O{sub 2}) production. The goal of each of these tasks is to develop advanced materials and processes that are able to reduce the energy penalty and cost of CO{sub 2} (or O{sub 2}) separation over conventional technologies. In the first year of development, materials will be examined by molecular modeling, and then synthesized and experimentally characterized at lab scale. In the second year, they will be tested further under ideal conditions. In the third year, they will be tested under realistic conditions. The most promising materials will be tested at the National Carbon Capture Center (NCCC) using actual flue or fuel gas. Systems analyses will be used to determine whether or not materials developed are likely to meet the Department of Energy (DOE) COE targets. Materials which perform well and appear likely to improve in performance will be licensed for further development outside of the National Energy Technology Laboratory (NETL), Office of Research and Development (ORD).

Luebke, David; Morreale, Bryan; Richards, George; Syamlal, Madhava

2014-04-16T23:59:59.000Z

352

Comparative Assessment of Status and Opportunities for CO2 Capture and Storage and Radioactive Waste Disposal in North America  

E-Print Network [OSTI]

2 injection, depleted oil and gas reservoirs for 20 years,depleted hydrocarbon reservoirs known to have trapped oiloil and gas companies are viewing depleted reservoirs and

Oldenburg, C.

2010-01-01T23:59:59.000Z

353

Application of integrated reservoir management and reservoir characterization to optimize infill drilling. Annual report, June 13, 1994--June 12, 1995  

SciTech Connect (OSTI)

This project has used a multi-disciplinary approach employing geology, geophysics, and engineering to conduct advanced reservoir characterization and management activities to design and implement an optimized infill drilling program at the North Robertson (Clearfork) Unit in Gaines County, Texas. The activities during the first Budget Period have consisted of developing an integrated reservoir description from geological, engineering, and geostatistical studies, and using this description for reservoir flow simulation. Specific reservoir management activities are being identified and tested. The geologically targeted infill drilling program will be implemented using the results of this work. A significant contribution of this project is to demonstrate the use of cost-effective reservoir characterization and management tools that will be helpful to both independent and major operators for the optimal development of heterogeneous, low permeability shallow-shelf carbonate (SSC) reservoirs. The techniques that are outlined for the formulation of an integrated reservoir description apply to all oil and gas reservoirs, but are specifically tailored for use in the heterogeneous, low permeability carbonate reservoirs of West Texas.

Pande, P.K.

1996-11-01T23:59:59.000Z

354

Advanced Oil Recovery Technologies for Improved Recovery from Slope Basin Clastic Reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, NM  

SciTech Connect (OSTI)

The Nash Draw Brushy Canyon Pool in Eddy County New Mexico was a cost-shared field demonstration project in the U.S. Department of Energy Class III Program. A major goal of the Class III Program was to stimulate the use of advanced technologies to increase ultimate recovery from slope-basin clastic reservoirs. Advanced characterization techniques were used at the Nash Draw Pool (NDP) project to develop reservoir management strategies for optimizing oil recovery from this Delaware reservoir. The objective of the project was to demonstrate that a development program, which was based on advanced reservoir management methods, could significantly improve oil recovery at the NDP. Initial goals were (1) to demonstrate that an advanced development drilling and pressure maintenance program can significantly improve oil recovery compared to existing technology applications and (2) to transfer these advanced methodologies to other oil and gas producers. Analysis, interpretation, and integration of recently acquired geological, geophysical, and engineering data revealed that the initial reservoir characterization was too simplistic to capture the critical features of this complex formation. Contrary to the initial characterization, a new reservoir description evolved that provided sufficient detail regarding the complexity of the Brushy Canyon interval at Nash Draw. This new reservoir description was used as a risk reduction tool to identify 'sweet spots' for a development drilling program as well as to evaluate pressure maintenance strategies. The reservoir characterization, geological modeling, 3-D seismic interpretation, and simulation studies have provided a detailed model of the Brushy Canyon zones. This model was used to predict the success of different reservoir management scenarios and to aid in determining the most favorable combination of targeted drilling, pressure maintenance, well stimulation, and well spacing to improve recovery from this reservoir. An Advanced Log Analysis technique developed from the NDP project has proven useful in defining additional productive zones and refining completion techniques. This program proved to be especially helpful in locating and evaluating potential recompletion intervals, which has resulted in low development costs with only small incremental increases in lifting costs. To develop additional reserves at lower costs, zones behind pipe in existing wells were evaluated using techniques developed for the Brushy Canyon interval. These techniques were used to complete uphole zones in thirteen of the NDP wells. A total of 14 recompletions were done: four during 1999, four during 2000, two during 2001, and four during 2002-2003. These workovers added reserves of 332,304 barrels of oil (BO) and 640,363 MCFG (thousand cubic feet of gas) at an overall weighted average development cost of $1.87 per BOE (barrel of oil equivalent). A pressure maintenance pilot project in a developed area of the field was not conducted because the pilot area was pressure depleted, and the reservoir in that area was found to be compartmentalized and discontinuous. Economic analyses and simulation studies indicated that immiscible injection of lean hydrocarbon gas for pressure maintenance was not warranted at the NDP and would need to be considered for implementation in similar fields very soon after production has started. Simulation studies suggested that the injection of miscible carbon dioxide (CO{sub 2}) could recover significant quantities of oil at the NDP, but a source of low-cost CO{sub 2} was not available in the area. Results from the project indicated that further development will be under playa lakes and potash areas that were beyond the regions covered by well control and are not accessible with vertical wells. These areas, covered by 3-D seismic surveys that were obtained as part of the project, were accessed with combinations of deviated/horizontal wells. Three directional/horizontal wells have been drilled and completed to develop reserves under surface-restricted areas and potash mines. The third

Mark B. Murphy

2005-09-30T23:59:59.000Z

355

The significance of local water resources captured in small reservoirs for crop production A global-scale analysis  

E-Print Network [OSTI]

modelling Food security Crop yield s u m m a r y Rainwater harvesting, broadly defined as the collection significance, rainwater harvesting in small reser- voirs has previously been overlooked in large data and other physical datasets to explore the potential role of small, localized rainwater harvesting

Douglas, Ellen M.

356

Reservoir permeability from seismic attribute analysis  

SciTech Connect (OSTI)

In case of porous fluid-saturated medium the Biot's poroelasticity theory predicts a movement of the pore fluid relative to the skeleton on seismic wave propagation through the medium. This phenomenon opens an opportunity for investigation of the flow properties of the hydrocarbon-saturated reservoirs. It is well known that relative fluid movement becomes negligible at seismic frequencies if porous material is homogeneous and well cemented. In this case the theory predicts an underestimated seismic wave velocity dispersion and attenuation. Based on Biot's theory, Helle et al. (2003) have numerically demonstrated the substantial effects on both velocity and attenuation by heterogeneous permeability and saturation in the rocks. Besides fluid flow effect, the effects of scattering (Gurevich, et al., 1997) play very important role in case of finely layered porous rocks and heterogeneous fluid saturation. We have used both fluid flow and scattering effects to derive a frequency-dependent seismic attribute which is proportional to fluid mobility and applied it for analysis of reservoir permeability.

Silin, Dmitriy; Goloshubin, G.; Silin, D.; Vingalov, V.; Takkand, G.; Latfullin, M.

2008-02-15T23:59:59.000Z

357

INNOVATIVE MIOR PROCESS UTILIZING INDIGENOUS RESERVOIR CONSTITUENTS  

SciTech Connect (OSTI)

This research program was directed at improving the knowledge of reservoir ecology and developing practical microbial solutions and technologies for improving oil production. The goal was to identify and utilize indigenous microbial populations which can produce beneficial metabolic products and develop a methodology to stimulate those select microbes with nutrient amendments to increase oil recovery. This microbial technology has the capability of producing multiple oil-releasing agents. Experimental laboratory work in model sandpack cores was conducted using microbial cultures isolated from produced water samples. Comparative laboratory studies demonstrating in situ production of microbial products as oil recovery agents were conducted in sand packs with natural field waters using cultures and conditions representative of oil reservoirs. Increased oil recovery in multiple model sandpack systems was achieved and the technology and results were verified by successful field studies. Direct application of the research results has lead to the development of a feasible, practical, successful, and cost-effective technology which increases oil recovery. This technology is now being commercialized and applied in numerous field projects to increase oil recovery. Two field applications of the developed technology reported production increases of 21% and 24% in oil recovery.

D.O. Hitzman; A.K. Stepp; D.M. Dennis; L.R. Graumann

2003-09-01T23:59:59.000Z

358

A general-purpose, geochemical reservoir simulator  

SciTech Connect (OSTI)

A geochemical simulator for the analysis of coupled reaction and transport processes is presented. The simulator is based on the numerical solution of the equations of coupled multi-phase fluid flow, species transport, energy balance and rock/fluid reactions. It also accounts for the effects of grain growth/dissolution and the alteration of porosity and permeability due to mineral reactions. The simulator can be used to analyze core floods, single-well scenarios and multiple production/injection well systems on the reservoir scale. Additionally, the simulator provides two flow options: the Darcy law for fluid flow in porous media and the Brinkman law that subsumes both free and porous medium flows. The simulator was tested using core acidizing data and results were in good agreement with laboratory observations. The simulator was applied to analyze matrix acidizing treatments for a horizontal well. The evolution of the skin factor was predicted and the optimal volume of acid required to remove the near-wellbore damage was determined. Reactive fluid infiltration was shown to lead to reaction-front fingering under certain conditions. Viscosity contrast in multiphase flow could also result in viscous fingering. Examples in this study also address these nonlinear fingering phenomena. A waterflood on the reservoir scale was analyzed and simulation results show that scale formation during waterfloods can occur far beyond injection wells. Two cases of waste disposal by deep well injection were evaluated and our simulation results were consistent with field measured data.

Liu, X.; Ortoleva, P.

1996-12-31T23:59:59.000Z

359

Twentieth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

PREFACE The Twentieth Workshop on Geothermal Reservoir Engineering, dedicated to the memory of Professor Hank Ramey, was held at Stanford University on January 24-26, 1995. There were ninety-five registered participants. Participants came from six foreign countries: Japan, Mexico, England, Italy, New Zealand and Iceland. The performance of many geothermal reservoirs outside the United States was described in several of the papers. Professor Roland N. Horne opened the meeting and welcomed visitors to the campus. The key note speaker was Marshall Reed, who gave a brief overview of the Department of Energy's current plan. Thirty-two papers were presented in the technical sessions of the workshop. Technical papers were organized into eleven sessions concerning: field development, modeling, well tesubore, injection, geoscience, geochemistry and field operations. Session chairmen were major contributors to the workshop, and we thank: Ben Barker, Bob Fournier, Mark Walters, John Counsil, Marcelo Lippmann, Keshav Goyal, Joel Renner and Mike Shook. In addition to the technical sessions, a panel discussion was held on ''What have we learned in 20 years?'' Panel speakers included Patrick Muffler, George Frye, Alfred Truesdell and John Pritchett. The subject was further discussed by Subir Sanyal, who gave the post-dinner speech at the banquet. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank our students who operated the audiovisual equipment. Shaun D. Fitzgerald Program Manager

None

1995-01-26T23:59:59.000Z

360

A simulation-based reservoir management program  

SciTech Connect (OSTI)

There are more than 5,200 independent oil and gas producers operating in the US today (based on current IPAA membership figures). These companies are playing an increasingly important role in production of hydrocarbons in California and elsewhere in the US. Pacific Operators Offshore, Inc., in a historic collaboration with its government royalty owners, the California State Lands Commission and the Minerals Management Service of the US Department of Interior, is attempting to redevelop the Carpinteria Offshore Field after two-and-a-half decades of production and partial abandonment by a previous operator. This paper will describe a project which focuses on the distribution of advanced reservoir management technologies (geological, petrophysical, and engineering) to independent producers like Pacific Operators Offshore, Inc. The evolving information highway, specifically the World Wide Web (WWW), serves as the distribution medium. The project to be described in this paper is an example of the implementation of a reservoir management tool which is supported by distributed databases, incorporates a shared computing environment, and integrates stochastic, geological, and engineering modeling.

Voskanian, M.M. [California State Lands Commission, Sacramento, CA (United States); Kendall, R.P.; Whitney, E.M. [Los Alamos National Lab., NM (United States); Coombs, S. [Pacific Operators Offshore, Inc., Santa Barbara, CA (United States); Paul, R.G. [Minerals Management Service, Reston, VA (United States). Headquarters Office; Ershaghi, I. [Univ. of Southern California, Los Angeles, CA (United States)

1996-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Production management techniques for water-drive gas reservoirs. Field number 1, onshore gulf coast over-pressured, high yield condensate reservoir. Topical report, July 1993  

SciTech Connect (OSTI)

To develop improved completion and reservoir management strategies for water-drive gas reservoirs, the study conducted on an overpressured high yield gas condensate reservoir is reported. The base recovery factor for the field was projected to be only 47.8%, due to high residual gas saturation and a relatively strong aquifer which maintained reservoir pressure.

Hower, T.L.

1993-07-01T23:59:59.000Z

362

Sixth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

INTRODUCTION TO THE PROCEEDINGS OF THE SIXTH GEOTHERMAL RESERVOIR ENGINEERING WORKSHOP, STANFORD GEOTHERMAL PROGRAM Henry J. Ramey, Jr., and Paul Kruger Co-Principal Investigators Ian G. Donaldson Program Manager Stanford Geothermal Program The Sixth Workshop on Geothermal Reservoir Engineering convened at Stanford University on December 16, 1980. As with previous Workshops the attendance was around 100 with a significant participation from countries other than the United States (18 attendees from 6 countries). In addition, there were a number of papers from foreign contributors not able to attend. Because of the success of all the earlier workshops there was only one format change, a new scheduling of Tuesday to Thursday rather than the earlier Wednesday through Friday. This change was in general considered for the better and will be retained for the Seventh Workshop. Papers were presented on two and a half of the three days, the panel session, this year on the numerical modeling intercomparison study sponsored by the Department of Energy, being held on the second afternoon. This panel discussion is described in a separate Stanford Geothermal Program Report (SGP-TR42). This year there was a shift in subject of the papers. There was a reduction in the number of papers offered on pressure transients and well testing and an introduction of several new subjects. After overviews by Bob Gray of the Department of Energy and Jack Howard of Lawrence Berkeley Laboratory, we had papers on field development, geopressured systems, production engineering, well testing, modeling, reservoir physics, reservoir chemistry, and risk analysis. A total of 51 papers were contributed and are printed in these Proceedings. It was, however, necessary to restrict the presentations and not all papers printed were presented. Although the content of the Workshop has changed over the years, the format to date has proved to be satisfactory. The objectives of the Workshop, the bringing together of researchers, engineers and managers involved in geothermal reservoir study and development and the provision of a forum for the prompt and open reporting of progress and for the exchange of ideas, continue to be met . Active discussion by the majority of the participants is apparent both in and outside the workshop arena. The Workshop Proceedings now contain some of the most highly cited geothermal literature. Unfortunately, the popularity of the Workshop for the presentation and exchange of ideas does have some less welcome side effects. The major one is the developing necessity for a limitation of the number of papers that are actually presented. We will continue to include all offered papers in the Summaries and Proceedings. As in the recent past, this sixth Workshop was supported by a grant from the Department of Energy. This grant is now made directly to Stanford as part of the support for the Stanford Geothermal Program (Contract No. DE-AT03-80SF11459). We are certain that all participants join us in our appreciation of this continuing support. Thanks are also due to all those individuals who helped in so many ways: The members of the program committee who had to work so hard to keep the program to a manageable size - George Frye (Aminoil USA), Paul G. Atkinson (Union Oil Company). Michael L. Sorey (U.S.G.S.), Frank G. Miller (Stanford Geothermal Program), and Roland N. Horne (Stanford Geothermal Program). The session chairmen who contributed so much to the organization and operation of the technical sessions - George Frye (Aminoil USA), Phillip H. Messer (Union Oil Company), Leland L. Mink (Department of Energy), Manuel Nathenson (U.S.G.S.), Gunnar Bodvarsson (Oregon State University), Mohindar S. Gulati (Union Oil Company), George F. Pinder (Princeton University), Paul A. Witherspoon (Lawrence Berkeley Laboratory), Frank G. Miller (Stanford Geothermal Program) and Michael J. O'Sullivan (Lawrence Berkeley Laboratory). The many people who assisted behind the scenes, making sure that everything was prepared and organized - in particular we would like to t

Ramey, H.J. Jr.; Kruger, P. (eds.)

1980-12-18T23:59:59.000Z

363

Operation of water supply reservoirs for flood mitigation : hydrologic and institutional considerations  

E-Print Network [OSTI]

Additional demands are being placed upon reservoirs to meet a variety of diverse needs. These demands require efficient management of the limited storage through reservoir operations. This efficiency is most critical with water supply reservoirs...

Craney, Patrick Wayne

1996-01-01T23:59:59.000Z

364

Improved Upscaling & Well Placement Strategies for Tight Gas Reservoir Simulation and Management  

E-Print Network [OSTI]

, with opportunities for improved reservoir simulation & management, such as simulation model design, well placement. Our work develops robust and efficient strategies for improved tight gas reservoir simulation and management. Reservoir simulation models are usually...

Zhou, Yijie

2013-07-29T23:59:59.000Z

365

Pressure transient test analysis of vuggy naturally fractured carbonate reservoir: field case study  

E-Print Network [OSTI]

Well pressure transient analysis is widely used in reservoir management to obtain reservoir information needed for reservoir simulation, damage identification, well optimization and stimulation evaluation. The main objective of this project...

Ajayi, Babatunde Tolulope

2009-06-02T23:59:59.000Z

366

Integrated Hydraulic Fracture Placement and Design Optimization in Unconventional Gas Reservoirs  

E-Print Network [OSTI]

Unconventional reservoir such as tight and shale gas reservoirs has the potential of becoming the main source of cleaner energy in the 21th century. Production from these reservoirs is mainly accomplished through engineered hydraulic fracturing...

Ma, Xiaodan

2013-12-10T23:59:59.000Z

367

An Autonomic Reservoir Framework for the Stochastic Optimization of Well Placement  

E-Print Network [OSTI]

impact on reservoir management. However, the determination of optimal well locations is both chal Approximation (SPSA) optimization algorithm, coupled with the Integrated Parallel Accurate Reservoir SimulatorAn Autonomic Reservoir Framework for the Stochastic Optimization of Well Placement Wolfgang

Parashar, Manish

368

Fracture Modeling and Flow Behavior in Shale Gas Reservoirs Using Discrete Fracture Networks  

E-Print Network [OSTI]

Fluid flow process in fractured reservoirs is controlled primarily by the connectivity of fractures. The presence of fractures in these reservoirs significantly affects the mechanism of fluid flow. They have led to problems in the reservoir which...

Ogbechie, Joachim Nwabunwanne

2012-02-14T23:59:59.000Z

369

Experimental Investigation of Propped Fracture Conductivity in Tight Gas Reservoirs Using The Dynamic Conductivity Test  

E-Print Network [OSTI]

in unconventional reservoirs such as coalbed methane, shale gas and tight gas reservoirs. Developing these types of unconventional gas reservoirs improves our energy security, and benefits the overall economy. Also, natural gas is one of the cleanest and most...

Romero Lugo, Jose 1985-

2012-10-24T23:59:59.000Z

370

STUDY OF WATERFLOODING PROCESS IN NATURALLY FRACTURED RESERVOIRS FROM STATIC AND DYNAMIC IMBIBITION EXPERIMENTS  

E-Print Network [OSTI]

STUDY OF WATERFLOODING PROCESS IN NATURALLY FRACTURED RESERVOIRS FROM STATIC AND DYNAMIC IMBIBITION experiments, followed by waterflooding, were performed at reservoir conditions to investigate rock wettability Berea and Spraberry cores at reservoir conditions to illustrate the actual process of waterflooding

Schechter, David S.

371

Computer Simulation of Reservoir Depletion and Oil Flow from the Macondo Well Following the Deepwater  

E-Print Network [OSTI]

Computer Simulation of Reservoir Depletion and Oil Flow from the Macondo Well Following, 2010, Computer simulation of reservoir depletion and oil flow from the Macondo well following. ..................................................................................12 Figures Figure 1. Oblique schematic view of the M56 oil reservoir

372

Methods and systems using encapsulated tracers and chemicals for reservoir interrogation and manipulation  

DOE Patents [OSTI]

An apparatus, method, and system of reservoir interrogation. A tracer is encapsulating in a receptacle. The receptacle containing the tracer is injected into the reservoir. The tracer is analyzed for reservoir interrogation.

Roberts, Jeffery; Aines, Roger D; Duoss, Eric B; Spadaccini, Christopher M

2014-11-04T23:59:59.000Z

373

Solving the Linear Equation in Reservoir Simulation List of authors  

E-Print Network [OSTI]

analogous to those techniques, but ensures that material balance is preserved exactly within each planeSolving the Linear Equation in Reservoir Simulation List of authors: Julien Maes 1 Reservoir, so that solving the linear equations arising in Newtons step is more and more challenging. Simulators

Boyer, Edmond

374

General inflow performance relationship for solution-gas reservoir wells  

SciTech Connect (OSTI)

Two equations are developed to describe the inflow performance relationship (IPR) of wells producing from solution-gas drive reservoirs. These are general equations (extensions of the currently available IPR's) that apply to wells with any drainage-area shape at any state of completion flow efficiency and any stage of reservoir depletion. 7 refs.

Dias-Couto, L.E.; Golan, M.

1982-02-01T23:59:59.000Z

375

Resolution of reservoir scale electrical anisotropy from marine CSEM data  

SciTech Connect (OSTI)

A combination of 1D and 3D forward and inverse solutions is used to quantify the sensitivity and resolution of conventional controlled source electromagnetic (CSEM) data collected using a horizontal electric dipole source to transverse electrical anisotropy located in a deep-water exploration reservoir target. Since strongly anisotropic shale layers have a vertical resistivity that can be comparable to many reservoirs, we examine how CSEM can discriminate confounding shale layers through their characteristically lower horizontal resistivity. Forward modeling demonstrates that the sensitivity to reservoir level anisotropy is very low compared to the sensitivity to isotropic reservoirs, especially when the reservoir is deeper than about 2 km below the seabed. However, for 1D models where the number of inversion parameters can be fixed to be only a few layers, both vertical and horizontal resistivity of the reservoir can be well resolved using a stochastic inversion. We find that the resolution of horizontal resistivity increases as the horizontal resistivity decreases. We show that this effect is explained by the presence of strong horizontal current density in anisotropic layers with low horizontal resistivity. Conversely, when the reservoir has a vertical to horizontal resistivity ratio of about 10 or less, the current density is vertically polarized and hence has little sensitivity to the horizontal resistivity. Resistivity anisotropy estimates from 3D inversion for 3D targets suggest that resolution of reservoir level anisotropy for 3D targets will require good a priori knowledge of the background sediment conductivity and structural boundaries.

Brown, V.; Hoversten, G.M.; Key, K.; Chen, J.

2011-10-01T23:59:59.000Z

376

Flood Operation Rules for a Single Reservoir Licheng Dong  

E-Print Network [OSTI]

, University of California - Davis 2012-12-12 Abstract This paper examines the theoretical behavior ecosystems. 2. Simple Inflow Hydrographs Three main factors affect the reservoir's inflow flood volume and peak outflow (Ergish, 2010): 1) inflow hydrograph volume and shape; 2) controllable reservoir storage

Lund, Jay R.

377

Integration of well test analysis into naturally fractured reservoir simulation  

E-Print Network [OSTI]

of the requirements for the degree of MASTER OF SCIENCE December 2005 Major Subject: Petroleum Engineering INTEGRATION OF WELL TEST ANALYSIS INTO A NATURALLY FRACTURED RESERVOIR SIMULATION A Thesis by LAURA..., W. John Lee Wayne M. Ahr Head of Department, Stephen A. Holditch December 2005 Major Subject: Petroleum Engineering iii ABSTRACT Integration of Well Test Analysis into a Naturally Fractured Reservoir...

Perez Garcia, Laura Elena

2006-04-12T23:59:59.000Z

378

Developing A Grid Portal For Large-scale Reservoir Studies  

E-Print Network [OSTI]

Developing A Grid Portal For Large-scale Reservoir Studies 1 Center for Computation & Technology 2 uncertainty. · Advantages of grid technology · Proposed Solution of the UCoMS Team · What is a Portal? · UCo of reservoir uncertainty... Petroleum drilling consist of many uncertainties. Main objective is to optimize

Allen, Gabrielle

379

A Variable Cell Model for Simulating Gas Condensate Reservoir Performance  

E-Print Network [OSTI]

, SPE-~~~ SPE 21428 A Variable Cell Model for Simulating Gas Condensate Reservoir Performance A of depletion performance of gas condensate reservoirs report the existence of a A variable cell model for simulating gas relatively high, near-constant, oil saturation in condensate reeervoir performance has been

Al-Majed, Abdulaziz Abdullah

380

The Optimization of Well Spacing in a Coalbed Methane Reservoir  

E-Print Network [OSTI]

reserve estimation for a coalbed methane reservoir. Other numerical reservoir simulation studies were presented by David, H. and Law, S.18, Hower, T.L.19, and Jalal, J. and Shahab, D.M.20. They showed the application of a compositional simulator...

Sinurat, Pahala Dominicus

2012-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Gradient-based Methods for Production Optimization of Oil Reservoirs  

E-Print Network [OSTI]

Gradient-based Methods for Production Optimization of Oil Reservoirs Eka Suwartadi Doctoral Thesis oil reservoirs. Gradient- based optimization, which utilizes adjoint-based gradient computation optimization for water flooding in the secondary phase of oil recovery is the main topic in this thesis

Foss, Bjarne A.

382

Predicting spatial distribution of critical pore types and their influence on reservoir quality, Canyon (Pennsylvanian) Reef reservoir, Diamond M field, Texas  

E-Print Network [OSTI]

Subject: Geology iii ABSTRACT Predicting Spatial Distribution of Critical Pore Types and Their Influence on Reservoir Quality, Canyon (Pennsylvanian) Reef Reservoir, Diamond M Field, Texas... scale. Ultimately slice maps of reservoir quality at a 10 ft interval for a 150 ft section of the Canyon Reef reservoir were developed. These iv reservoir quality maps will provide a useful tool for the design and implementation of accurate...

Fisher, Aaron Jay

2007-04-25T23:59:59.000Z

383

Opportunities to improve oil productivity in unstructured deltaic reservoirs  

SciTech Connect (OSTI)

This report contains presentations presented at a technical symposium on oil production. Chapter 1 contains summaries of the presentations given at the Department of Energy (DOE)-sponsored symposium and key points of the discussions that followed. Chapter 2 characterizes the light oil resource from fluvial-dominated deltaic reservoirs in the Tertiary Oil Recovery Information System (TORIS). An analysis of enhanced oil recovery (EOR) and advanced secondary recovery (ASR) potential for fluvial-dominated deltaic reservoirs based on recovery performance and economic modeling as well as the potential resource loss due to well abandonments is presented. Chapter 3 provides a summary of the general reservoir characteristics and properties within deltaic deposits. It is not exhaustive treatise, rather it is intended to provide some basic information about geologic, reservoir, and production characteristics of deltaic reservoirs, and the resulting recovery problems.

Not Available

1991-01-01T23:59:59.000Z

384

High resolution reservoir geological modelling using outcrop information  

SciTech Connect (OSTI)

This is China`s first case study of high resolution reservoir geological modelling using outcrop information. The key of the modelling process is to build a prototype model and using the model as a geological knowledge bank. Outcrop information used in geological modelling including seven aspects: (1) Determining the reservoir framework pattern by sedimentary depositional system and facies analysis; (2) Horizontal correlation based on the lower and higher stand duration of the paleo-lake level; (3) Determining the model`s direction based on the paleocurrent statistics; (4) Estimating the sandbody communication by photomosaic and profiles; (6) Estimating reservoir properties distribution within sandbody by lithofacies analysis; and (7) Building the reservoir model in sandbody scale by architectural element analysis and 3-D sampling. A high resolution reservoir geological model of Youshashan oil field has been built by using this method.

Zhang Changmin; Lin Kexiang; Liu Huaibo [Jianghan Petroleum Institute, Hubei (China)] [and others

1997-08-01T23:59:59.000Z

385

Energy transport between two pure-dephasing reservoirs  

E-Print Network [OSTI]

A pure-dephasing reservoir acting on an individual quantum system induces loss of coherence without energy exchange. When acting on composite quantum systems, dephasing reservoirs can lead to a radically different behavior. Transport of energy between two pure-dephasing markovian reservoirs is predicted in this work. They are connected through a chain of coupled sites. The baths are kept in thermal equilibrium at distinct temperatures. Quantum coherence between sites is generated in the steady-state regime and results in the underlying mechanism sustaining the effect. A quantum model for the reservoirs is a necessary condition for the existence of stationary energy transport. A microscopic derivation of the non-unitary system-bath interaction is employed, valid in the ultrastrong inter-site coupling regime. The model assumes that each site-reservoir coupling is local.

T. Werlang; D. Valente

2014-08-21T23:59:59.000Z

386

Reviving Abandoned Reservoirs with High-Pressure Air Injection: Application in a Fractured and Karsted Dolomite Reservoir  

SciTech Connect (OSTI)

Despite declining production rates, existing reservoirs in the United States contain vast volumes of remaining oil that is not being effectively recovered. This oil resource constitutes a huge target for the development and application of modern, cost-effective technologies for producing oil. Chief among the barriers to the recovery of this oil are the high costs of designing and implementing conventional advanced recovery technologies in these mature, in many cases pressure-depleted, reservoirs. An additional, increasingly significant barrier is the lack of vital technical expertise necessary for the application of these technologies. This lack of expertise is especially notable among the small operators and independents that operate many of these mature, yet oil-rich, reservoirs. We addressed these barriers to more effective oil recovery by developing, testing, applying, and documenting an innovative technology that can be used by even the smallest operator to significantly increase the flow of oil from mature U.S. reservoirs. The Bureau of Economic Geology and Goldrus Producing Company assembled a multidisciplinary team of geoscientists and engineers to evaluate the applicability of high-pressure air injection (HPAI) in revitalizing a nearly abandoned carbonate reservoir in the Permian Basin of West Texas. The Permian Basin, the largest oil-bearing basin in North America, contains more than 70 billion barrels of remaining oil in place and is an ideal venue to validate this technology. We have demonstrated the potential of HPAI for oil-recovery improvement in preliminary laboratory tests and a reservoir pilot project. To more completely test the technology, this project emphasized detailed characterization of reservoir properties, which were integrated to access the effectiveness and economics of HPAI. The characterization phase of the project utilized geoscientists and petroleum engineers from the Bureau of Economic Geology and the Department of Petroleum Engineering (both at The University of Texas at Austin) to define the controls on fluid flow in the reservoir as a basis for developing a reservoir model. The successful development of HPAI technology has tremendous potential for increasing the flow of oil from deep carbonate reservoirs in the Permian Basin, a target resource that can be conservatively estimated at more than 1.5 billion barrels. Successful implementation in the field chosen for demonstration, for example, could result in the recovery of more than 34 million barrels of oil that will not otherwise be produced. Geological and petrophysical analysis of available data at Barnhart field reveals the following important observations: (1) the Barnhart Ellenburger reservoir is similar to most other Ellenburger reservoirs in terms of depositional facies, diagenesis, and petrophysical attributes; (2) the reservoir is characterized by low to moderate matrix porosity much like most other Ellenburger reservoirs in the Permian Basin; (3) karst processes (cave formation, infill, and collapse) have substantially altered stratigraphic architecture and reservoir properties; (4) porosity and permeability increase with depth and may be associated with the degree of karst-related diagenesis; (5) tectonic fractures overprint the reservoir, improving overall connectivity; (6) oil-saturation profiles show that the oil-water contact (OWC) is as much as 125 ft lower than previous estimations; (7) production history and trends suggest that this reservoir is very similar to other solution-gas-drive reservoirs in the Permian Basin; and (8) reservoir simulation study showed that the Barnhart reservoir is a good candidate for HPAI and that application of horizontal-well technology can improve ultimate resource recovery from the reservoir.

Robert Loucks; Stephen C. Ruppel; Dembla Dhiraj; Julia Gale; Jon Holder; Jeff Kane; Jon Olson; John A. Jackson; Katherine G. Jackson

2006-09-30T23:59:59.000Z

387

Ninth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

The attendance at the Workshop was similar to last year's with 123 registered participants of which 22 represented 8 foreign countries. A record number of technical papers (about 60) were submitted for presentation at the Workshop. The Program Committee, therefore, decided to have several parallel sessions to accommodate most of the papers. This format proved unpopular and will not be repeated. Many of the participants felt that the Workshop lost some of its unique qualities by having parallel sessions. The Workshop has always been held near the middle of December during examination week at Stanford. This timing was reviewed in an open discussion at the Workshop. The Program Committee subsequently decided to move the Workshop to January. The Tenth Workshop will be held on January 22-24, 1985. The theme of the Workshop this year was ''field developments worldwide''. The Program Committee addressed this theme by encouraging participants to submit field development papers, and by inviting several international authorities to give presentations at the Workshop. Field developments in at least twelve countries were reported: China, El Salvador, France, Greece, Iceland, Italy, Japan, Kenya, Mexico, New Zealand, the Philippines, and the United States. There were 58 technical presentations at the Workshop, of which 4 were not made available for publication. Several authors submitted papers not presented at the Workshop. However, these are included in the 60 papers of these Proceedings. The introductory address was given by Ron Toms of the U.S. Department of Energy, and the banquet speaker was A1 Cooper of Chevron Resources Company. An important contribution was made to the Workshop by the chairmen of the technical sessions. Other than Stanford Geothermal Program faculty members, they included: Don White (Field Developments), Bill D'Olier (Hydrothermal Systems), Herman Dykstra (Well Testing), Karsten Pruess (Well Testing), John Counsil (Reservoir Chemistry), Malcolm Mossman (Reservoir Chemistry), Greg Raasch (Production), Manny Nathenson (Injection), Susan Petty (Injection), Subir Sanyal (Simulation), Marty Molloy (Petrothermal), and Allen Moench (Reservoir Physics). The Workshop was organized by the Stanford Geothermal Program faculty, staff and students. We would like to thank Jean Cook, Joanne Hartford, Terri Ramey, Amy Osugi, and Marilyn King for their valued help with the Workshop arrangements and the Proceedings. We also owe thanks to the program students who arranged and operated the audio-visual equipment. The Ninth Workshop was supported by the Geothermal and Hydropower Technologies Division of the U . S . Department of Energy through contract DE-AT03-80SF11459. We deeply appreciate this continued support. H. J. Ramey, Jr., R. N. Horne, P. Kruger, W. E. Brigham, F. G. Miller, J. S . Gudmundsson -vii

Ramey, H.J. Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E.; Gudmundsson, J.S. (Stanford Geothermal Program)

1983-12-15T23:59:59.000Z

388

Converting Boundary Representation Solid Models to Half-Space Representation Models for Monte Carlo Analysis  

SciTech Connect (OSTI)

Solid modeling computer software systems provide for the design of three-dimensional solid models used in the design and analysis of physical components. The current state-of-the-art in solid modeling representation uses a boundary representation format in which geometry and topology are used to form three-dimensional boundaries of the solid. The geometry representation used in these systems is cubic B-spline curves and surfaces--a network of cubic B-spline functions in three-dimensional Cartesian coordinate space. Many Monte Carlo codes, however, use a geometry representation in which geometry units are specified by intersections and unions of half-spaces. This paper describes an algorithm for converting from a boundary representation to a half-space representation.

Davis JE, Eddy MJ, Sutton TM, Altomari TJ

2007-03-01T23:59:59.000Z

389

MONOMIAL REPRESENTATIONS M. Harris, Eilenberg lecture 3  

E-Print Network [OSTI]

MONOMIAL REPRESENTATIONS M. Harris, Eilenberg lecture 3 In the previous lecture I described Hecke. HARRIS, EILENBERG LECTURE 3 (5) Suppose is associated to a compatible family M ¯Q� of one

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

390

Harmonic Representation of Combinations and Partitions  

E-Print Network [OSTI]

In the present article a new method of deriving integral representations of combinations and partitions in terms of harmonic products has been established. This method may be relevant to statistical mechanics and to number theory.

Michalis Psimopoulos

2011-03-01T23:59:59.000Z

391

QUASI-REPRESENTATIONS OF SURFACE GROUPS 1 ...  

E-Print Network [OSTI]

C?-algebra. 1. Introduction. Let G be a discrete countable group. In [3,4] the ... conjecture, a unital finite dimensional representation ?: C?(G) ? Mr(C) induces ...

2012-07-13T23:59:59.000Z

392

Mental Representations Formed From Educational Website Formats  

SciTech Connect (OSTI)

The increasing popularity of web-based distance education places high demand on distance educators to format web pages to facilitate learning. However, limited guidelines exist regarding appropriate writing styles for web-based distance education. This study investigated the effect of four different writing styles on reader’s mental representation of hypertext. Participants studied hypertext written in one of four web-writing styles (e.g., concise, scannable, objective, and combined) and were then administered a cued association task intended to measure their mental representations of the hypertext. It is hypothesized that the scannable and combined styles will bias readers to scan rather than elaborately read, which may result in less dense mental representations (as identified through Pathfinder analysis) relative to the objective and concise writing styles. Further, the use of more descriptors in the objective writing style will lead to better integration of ideas and more dense mental representations than the concise writing style.

Elizabeth T. Cady; Kimberly R. Raddatz; Tuan Q. Tran; Bernardo de la Garza; Peter D. Elgin

2006-10-01T23:59:59.000Z

393

Quantization and erasures in frame representations  

E-Print Network [OSTI]

Frame representations, which correspond to overcomplete generalizations to basis expansions, are often used in signal processing to provide robustness to errors. In this thesis robustness is provided through the use of ...

Boufounos, Petros T., 1977-

2006-01-01T23:59:59.000Z

394

Tube-wave Seismic Imaging and Monitoring Method for Oil Reservoirs...  

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

Tube-wave Seismic Imaging and Monitoring Method for Oil Reservoirs and Aquifers Lawrence Berkeley National Laboratory Contact LBL About This Technology Real-Time Reservoir...

395

Sizing of a hot dry rock reservoir from a hydraulic fracturing experiment  

SciTech Connect (OSTI)

Hot dry rock (HDR) reservoirs do not lend themselves to the standard methods of reservoir sizing developed in the petroleum industry such as the buildup/drawdown test. In a HDR reservoir the reservoir is created by the injection of fluid. This process of hydraulic fracturing of the reservoir rock usually involves injection of a large volume (5 million gallons) at high rates (40BPM). A methodology is presented for sizing the HDR reservoir created during the hydraulic fracturing process. The reservoir created during a recent fracturing experiment is sized using the techniques presented. This reservoir is then investigated for commercial potential by simulation of long term power production. 5 refs., 7 figs.

Zyvoloski, G.

1985-01-01T23:59:59.000Z

396

Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity...  

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

Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced Geothermal Systems Novel use of 4D Monitoring Techniques to Improve Reservoir...

397

E-Print Network 3.0 - ardross reservoir gridblock Sample Search...  

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

sections. Reservoir Reservoir gridblock Idealized gridblockSingle matrix block Fracture Matrix 12;SPE... gridblocks is applied for ... Source: Arbogast, Todd - Center for...

398

Sensitivity analysis of modeling parameters that affect the dual peaking behaviour in coalbed methane reservoirs.  

E-Print Network [OSTI]

??Coalbed methane reservoir (CBM) performance is controlled by a complex set of reservoir, geologic, completion and operational parameters and the inter-relationships between those parameters. Therefore… (more)

Okeke, Amarachukwu Ngozi

2006-01-01T23:59:59.000Z

399

E-Print Network 3.0 - andres reservoir foster Sample Search Results  

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

NATIONAL WILDLIFE REFUGE... Reservoir Elephant Butte Reservoir Afton Red Sand Mason Draw Fort Bliss McGregor Range White Sands Missile Source: Laughlin, Robert B. - Department of...

400

Numerical modeling of water injection into vapor-dominated geothermal reservoirs  

E-Print Network [OSTI]

Renewable Energy, Office of Geothermal Technologies, of theTransport in Fractured Geothermal Reservoirs, Geothermics,Depletion of Vapor-Dominated Geothermal Reservoirs, Lawrence

Pruess, Karsten

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Petrophysical rock classification in the Cotton Valley tight-gas sandstone reservoir with a clustering  

E-Print Network [OSTI]

Petrophysical rock classification in the Cotton Valley tight-gas sandstone reservoir classification method with field data acquired in the Cotton Valley tight-gas sandstone reservoir located

Torres-Verdín, Carlos

402

EVALUATION OF PERFORMANCE OF CYCLIC STEAM INJECTION IN NATURALLY FRACTURED RESERVOIRS – AN ARTIFICIAL NEURAL NETWORK APPLICATION.  

E-Print Network [OSTI]

??With increasing demand on oil, it is important to improve the recovery factor of oil reservoirs. Naturally fractured reservoirs constitute a major portion of world’s… (more)

Chintalapati, Santosh Phani Bhushan

2011-01-01T23:59:59.000Z

403

Continuous reservoir simulation model updating and forecasting using a markov chain monte carlo method  

E-Print Network [OSTI]

forecasts of well and reservoir performance, accessible at any time. It can be used to optimize long-term reservoir performance at field scale....

Liu, Chang

2009-05-15T23:59:59.000Z

404

Ordinary Muon Capture in Hydrogen Reexamined  

E-Print Network [OSTI]

The rate of muon capture in a muonic hydrogen atom is calculated in heavy-nucleon chiral perturbation theory up to next-to-next-to leading order. To this order, we present the systematic evaluation of all the corrections due to the QED and electroweak radiative corrections and the proton-size effect. Since the low-energy constants involved can be determined from other independent sources of information, the theory has predictive power. For the hyperfine-singlet $\\mu p$ capture rate $\\Gamma_0$, our calculation gives $\\Gamma_0=710 \\,\\pm 5\\,s^{-1}$, which is in excellent agreement with the experimental value obtained in a recent high-precision measurement by the MuCap Collaboration.

U. Raha; F. Myhrer; K. Kubodera

2013-06-03T23:59:59.000Z

405

Layered solid sorbents for carbon dioxide capture  

SciTech Connect (OSTI)

A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is/are deposited on the surface of and/or within the solid substrate. A method of preparing and using the solid sorbent is provided.

Li, Bingyun; Jiang, Bingbing; Gray, McMahan L; Fauth, Daniel J; Pennline, Henry W; Richards, George A

2014-11-18T23:59:59.000Z

406

Electron capture cross sections for stellar nucleosynthesis  

E-Print Network [OSTI]

In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions. Towards this aim we exploit the advantages of a refined version of the proton-neutron quasi-particle random-phase approximation (pn-QRPA) and carry out state-by-state evaluations of the rates of exclusive processes that lead to any of the accessible transitions within the chosen model space. In the second stage of our present study, we translate the above mentioned $e^-$-capture cross sections to the stellar environment ones by inserting the temperature dependence through a Maxwell-Boltzmann distribution describing the stellar electron gas. As a concrete nuclear target we use the $^{66}Zn$ isotope, which belongs to the iron group nuclei and plays prominent role in stellar nucleosynthesis at core collapse supernovae environment.

Giannaka, P G

2015-01-01T23:59:59.000Z

407

Quantification of Hungry Horse Reservoir Water Levels Needed to Maintain or Enhance Reservoir Fisheries, 1983-1985 Summary Report.  

SciTech Connect (OSTI)

The Pacific Northwest Electric Power Planning and Conservation Act passed in 1980 by Congress has provided a mechanism which integrates and provides for stable energy planning in the Pacific Northwest. The Act created the Northwest Power Planning Council and charged the Council with developing a comprehensive fish and wildlife program to protect and enhance fish and wildlife impacted by hydroelectric development in the Columbia River Basin. Implementation of the plan is being carried out by the Bonneville Power Administration. The Hungry Horse Reservoir study is part of that Council's plan. This study proposes to quantify seasonal water levels needed to maintain or enhance principal gamefish species in Hungry Horse Reservoir. The specific study objects are listed below. (1) Quantify the amount of reservoir habitat available at different water level elevations; (2) Estimate recruitment of westslope cutthroat trout juveniles from important spawning and nursery tributaries; (3) Determine the abundance, growth, distribution and use of available habitat by major game species in the reservoir; (4) Determine the abundance and availability of fish food organisms in the reservoir; (5) Quantify the seasonal use of available food items by major fish species; (6) Develop relationships between reservoir drawdown and reservoir habitat used by fish and fish food organisms; and (7) Estimate the impact of reservoir operation on major gamefish species.

May, Bruce

1985-06-01T23:59:59.000Z

408

Dynamic Reservoir Characterization for High Resolution Connectivity Mapping and Conformance Control, Morrow Sandstone Reservoir, Postle Field, Oklahoma  

E-Print Network [OSTI]

. The purpose is to conduct dynamic reservoir characterization of the Postle Field, Morrow Reservoir, under CO2 depletion, followed by water flooding in 1965, and later onset of CO2-enhanced oil recovery in 1995 within valley fill complexes (Fig. 3). Whiting Petroleum Company, the operator, is preparing to initiate a CO2

409

Capturing Energy Savings with Steam Traps  

E-Print Network [OSTI]

Capturing Energy Savings with Steam Traps Richard C; Bockwinkel General Manager Armstrong Service? A Division of Armstrong International, Inc. Orlando, Florida ABSTRACT This paper will discuss the energy savings potential of steam... Engineer Steam Traps Armstrong International, Inc. Three Rivers, Michigan basis. Finally, it's important to recognize that a steam trap program will reduce steam waste> which will reduce the amount of fuel burned> which will reduce pollutants...

Bockwinkel, R. G.; French, S. A.

410

Data Capture Technique for High Speed Signaling  

DOE Patents [OSTI]

A data capture technique for high speed signaling to allow for optimal sampling of an asynchronous data stream. This technique allows for extremely high data rates and does not require that a clock be sent with the data as is done in source synchronous systems. The present invention also provides a hardware mechanism for automatically adjusting transmission delays for optimal two-bit simultaneous bi-directional (SiBiDi) signaling.

Barrett, Wayne Melvin (Rochester, MN); Chen, Dong (Croton On Hudson, NY); Coteus, Paul William (Yorktwon Heights, NY); Gara, Alan Gene (Mount Kisco, NY); Jackson, Rory (Eastchester, NY); Kopcsay, Gerard Vincent (Yorktown Hieghts, NY); Nathanson, Ben Jesse (Teaneck, NY); Vranas, Paylos Michael (Bedford Hills, NY); Takken, Todd E. (Brewster, NY)

2008-08-26T23:59:59.000Z

411

Simteche Hydrate CO2 Capture Process  

SciTech Connect (OSTI)

As a result of an August 4, 2005 project review meeting held at Los Alamos National Laboratory (LANL) to assess the project's technical progress, Nexant/Simteche/LANL project team was asked to meet four targets related to the existing project efforts. The four targets were to be accomplished by the September 30, 2006. These four targets were: (1) The CO{sub 2} hydrate process needs to show, through engineering and sensitivity analysis, that it can achieve 90% CO{sub 2} capture from the treated syngas stream, operating at 1000 psia. The cost should indicate the potential of achieving the Sequestration Program's cost target of less than 10% increase in the cost of electricity (COE) of the non-CO{sub 2} removal IGCC plant or demonstrate a significant cost reduction from the Selexol process cost developed in the Phase II engineering analysis. (2) The ability to meet the 20% cost share requirement for research level efforts. (3) LANL identifies through equilibrium and bench scale testing a once-through 90% CO{sub 2} capture promoter that supports the potential to achieve the Sequestration Program's cost target. Nexant is to perform an engineering analysis case to verify any economic benefits, as needed; no ETM validation is required, however, for this promoter for FY06. (4) The CO{sub 2} hydrate once-through process is to be validated at 1000 psia with the ETM at a CO{sub 2} capture rate of 60% without H{sub 2}S. The performance of 68% rate of capture is based on a batch, equilibrium data with H{sub 2}S. Validation of the test results is required through multiple runs and engineering calculations. Operational issues will be solved that will specifically effect the validation of the technology. Nexant was given the primary responsibility for Target No.1, while Simteche was mainly responsible for Target No.2; with LANL having the responsibility of Targets No.3 and No.4.

Nexant and Los Alamos National Laboratory

2006-09-30T23:59:59.000Z

412

Analytical solution for Joule-Thomson cooling during CO2 geo-sequestration in depleted oil and gas reservoirs  

E-Print Network [OSTI]

sequestration in depleted oil and gas reservoirs Simon A.1. Introduction Depleted oil and gas reservoirs (DOGRs)

Mathias, S.A.

2010-01-01T23:59:59.000Z

413

Naturally fractured tight gas reservoir detection optimization  

SciTech Connect (OSTI)

The goal of the work this quarter has been to partition and high-grade the Greater Green River basin for exploration efforts in the Upper Cretaceous tight gas play and to initiate resource assessment of the basin. The work plan for the quarter of July 1-September 30, 1998 comprised three tasks: (1) Refining the exploration process for deep, naturally fractured gas reservoirs; (2) Partitioning of the basin based on structure and areas of overpressure; (3) Examination of the Kinney and Canyon Creek fields with respect to the Cretaceous tight gas play and initiation of the resource assessment of the Vermilion sub-basin partition (which contains these two fields); and (4) Initiation analysis of the Deep Green River Partition with respect to the Stratos well and assessment of the resource in the partition.

NONE

1998-11-30T23:59:59.000Z

414

Naturally fractured tight gas reservoir detection optimization  

SciTech Connect (OSTI)

Building upon the partitioning of the Greater Green River Basin (GGRB) that was conducted last quarter, the goal of the work this quarter has been to conclude evaluation of the Stratos well and the prototypical Green River Deep partition, and perform the fill resource evaluation of the Upper Cretaceous tight gas play, with the goal of defining target areas of enhanced natural fracturing. The work plan for the quarter of November 1-December 31, 1998 comprised four tasks: (1) Evaluation of the Green River Deep partition and the Stratos well and examination of potential opportunity for expanding the use of E and P technology to low permeability, naturally fractured gas reservoirs, (2) Gas field studies, and (3) Resource analysis of the balance of the partitions.

NONE

1999-06-01T23:59:59.000Z

415

Naturally fractured tight gas reservoir detection optimization  

SciTech Connect (OSTI)

During this quarter, work began on the regional structural and geologic analysis of the greater Green River basin (GGRB) in southwestern Wyoming, northwestern Colorado and northeastern Utah. The ultimate objective of the regional analysis is to apply the techniques developed and demonstrated during earlier phases of the project to sweet-spot delineation in a relatively new and underexplored play: tight gas from continuous-type Upper Cretaceous reservoirs of the GGRB. The primary goal of this work is to partition and high-grade the greater Green River basin for exploration efforts in the Cretaceous tight gas play. The work plan for the quarter of January 1, 1998--March 31, 1998 consisted of three tasks: (1) Acquire necessary data and develop base map of study area; (2) Process data for analysis; and (3) Initiate structural study. The first task and second tasks were completed during this reporting period. The third task was initiated and work continues.

NONE

1998-09-30T23:59:59.000Z

416

Calibration of Seismic Attributes for Reservoir Characterization  

SciTech Connect (OSTI)

The project, "Calibration of Seismic Attributes for Reservoir Characterization," is now complete. Our original proposed scope of work included detailed analysis of seismic and other data from two to three hydrocarbon fields; we have analyzed data from four fields at this level of detail, two additional fields with less detail, and one other 2D seismic line used for experimentation. We also included time-lapse seismic data with ocean-bottom cable recordings in addition to the originally proposed static field data. A large number of publications and presentations have resulted from this work, inlcuding several that are in final stages of preparation or printing; one of these is a chapter on "Reservoir Geophysics" for the new Petroleum Engineering Handbook from the Society of Petroleum Engineers. Major results from this project include a new approach to evaluating seismic attributes in time-lapse monitoring studies, evaluation of pitfalls in the use of point-based measurements and facies classifications, novel applications of inversion results, improved methods of tying seismic data to the wellbore, and a comparison of methods used to detect pressure compartments. Some of the data sets used are in the public domain, allowing other investigators to test our techniques or to improve upon them using the same data. From the public-domain Stratton data set we have demonstrated that an apparent correlation between attributes derived along 'phantom' horizons are artifacts of isopach changes; only if the interpreter understands that the interpretation is based on this correlation with bed thickening or thinning, can reliable interpretations of channel horizons and facies be made. From the public-domain Boonsville data set we developed techniques to use conventional seismic attributes, including seismic facies generated under various neural network procedures, to subdivide regional facies determined from logs into productive and non-productive subfacies, and we developed a method involving cross-correlation of seismic waveforms to provide a reliable map of the various facies present in the area. The Wamsutter data set led to the use of unconventional attributes including lateral incoherence and horizon-dependent impedance variations to indicate regions of former sand bars and current high pressure, respectively, and to evaluation of various upscaling routines. The Teal South data set has provided a surprising set of results, leading us to develop a pressure-dependent velocity relationship and to conclude that nearby reservoirs are undergoing a pressure drop in response to the production of the main reservoir, implying that oil is being lost through their spill points, never to be produced. Additional results were found using the public-domain Waha and Woresham-Bayer data set, and some tests of technologies were made using 2D seismic lines from Michigan and the western Pacific ocean.

Wayne D. Pennington

2002-09-29T23:59:59.000Z

417

CALIBRATION OF SEISMIC ATTRIBUTES FOR RESERVOIR CHARACTERIZATION  

SciTech Connect (OSTI)

The project, ''Calibration of Seismic Attributes for Reservoir Calibration,'' is now complete. Our original proposed scope of work included detailed analysis of seismic and other data from two to three hydrocarbon fields; we have analyzed data from four fields at this level of detail, two additional fields with less detail, and one other 2D seismic line used for experimentation. We also included time-lapse seismic data with ocean-bottom cable recordings in addition to the originally proposed static field data. A large number of publications and presentations have resulted from this work, including several that are in final stages of preparation or printing; one of these is a chapter on ''Reservoir Geophysics'' for the new Petroleum Engineering Handbook from the Society of Petroleum Engineers. Major results from this project include a new approach to evaluating seismic attributes in time-lapse monitoring studies, evaluation of pitfalls in the use of point-based measurements and facies classifications, novel applications of inversion results, improved methods of tying seismic data to the wellbore, and a comparison of methods used to detect pressure compartments. Some of the data sets used are in the public domain, allowing other investigators to test our techniques or to improve upon them using the same data. From the public-domain Stratton data set we have demonstrated that an apparent correlation between attributes derived along ''phantom'' horizons are artifacts of isopach changes; only if the interpreter understands that the interpretation is based on this correlation with bed thickening or thinning, can reliable interpretations of channel horizons and facies be made. From the public-domain Boonsville data set we developed techniques to use conventional seismic attributes, including seismic facies generated under various neural network procedures, to subdivide regional facies determined from logs into productive and non-productive subfacies, and we developed a method involving cross-correlation of seismic waveforms to provide a reliable map of the various facies present in the area. The Wamsutter data set led to the use of unconventional attributes including lateral incoherence and horizon-dependent impedance variations to indicate regions of former sand bars and current high pressure, respectively, and to evaluation of various upscaling routines. The Teal South data set has provided a surprising set of results, leading us to develop a pressure-dependent velocity relationship and to conclude that nearby reservoirs are undergoing a pressure drop in response to the production of the main reservoir, implying that oil is being lost through their spill points, never to be produced. Additional results were found using the public-domain Waha and Woresham-Bayer data set, and some tests of technologies were made using 2D seismic lines from Michigan and the western Pacific ocean.

Wayne D. Pennington; Horacio Acevedo; Aaron Green; Joshua Haataja; Shawn Len; Anastasia Minaeva; Deyi Xie

2002-10-01T23:59:59.000Z

418

Current reservoirs in the simple exclusion process  

E-Print Network [OSTI]

We consider the symmetric simple exclusion process in the interval $[-N,N]$ with additional birth and death processes respectively on $(N-K,N]$, $K>0$, and $[-N,-N+K)$. The exclusion is speeded up by a factor $N^2$, births and deaths by a factor $N$. Assuming propagation of chaos (a property proved in a companion paper "Truncated correlations in the stirring process with births and deaths") we prove convergence in the limit $N\\to \\infty$ to the linear heat equation with Dirichlet condition on the boundaries; the boundary conditions however are not known a priori, they are obtained by solving a non linear equation. The model simulates mass transport with current reservoirs at the boundaries and the Fourier law is proved to hold.

Anna De Masi; Errico Presutti; Dimitrios Tsagkarogiannis; Maria Eulalia Vares

2011-04-20T23:59:59.000Z

419

Eighteenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

PREFACE The Eighteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 26-28, 1993. There were one hundred and seventeen registered participants which was greater than the attendance last year. Participants were from eight foreign countries: Italy, Japan, United Kingdom, Mexico, New Zealand, the Philippines, Guatemala, and Iceland. Performance of many geothermal fields outside the United States was described in several of the papers. Dean Gary Ernst opened the meeting and welcomed the visitors to the campus. The key note speaker was J.E. ''Ted'' Mock who gave a brief overview of the Department of Energy's current plan. The Stanford Geothermal Program Reservoir Engineering Award for Excellence in Development of Geothermal Energy was awarded to Dr. Mock who also spoke at the banquet. Thirty-nine papers were presented at the Workshop with two papers submitted for publication only. Technical papers were organized in twelve sessions concerning: field operations, The Geysers, geoscience, hot-dry-rock, injection, modeling, slim hole wells, geochemistry, well test and wellbore. Session chairmen were major contributors to the program and we thank: John Counsil, Kathleen Enedy, Harry Olson, Eduardo Iglesias, Marcelo Lippmann, Paul Atkinson, Jim Lovekin, Marshall Reed, Antonio Correa, and David Faulder. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank Pat Ota, Ted Sumida, and Terri A. Ramey who also produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate audiovisual equipment and to John Hornbrook who coordinated the meeting arrangements for the Workshop. Henry J. Ramey, Jr. Roland N. Horne Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook

Ramey, H.J. Jr.; Horne, R.J.; Kruger, P.; Miller, F.G.; Brigham, W.E.; Cook, J.W. (Stanford Geothermal Program)

1993-01-28T23:59:59.000Z

420

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

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Gamma Spectrum from Neutron Capture on Tungsten Isotopes  

E-Print Network [OSTI]

FROM NEUTRON CAPTURE ON TUNGSTEN ISOTOPES A. M. HURST ?1,2 ,capture on the stable tungsten isotopes is presented, withknown decay schemes of the tungsten isotopes from neutron

Hurst, Aaron

2011-01-01T23:59:59.000Z

422

solvent-carbon-capture-scientific | netl.doe.gov  

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

Development of a Novel Gas Pressurized Stripping Process-Based Technology for CO2 Capture Project No.: DE-FE0007567 Carbon Capture Scientific is developing and testing a novel,...

423

Capturing the Sun, Creating a Clean Energy Future (Brochure)...  

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

Capturing the Sun, Creating a Clean Energy Future (Brochure), SunShot, Solar Energy Technologies Program (SETP), U.S. Department of Energy (DOE) Capturing the Sun, Creating a Clean...

424

New Funding Boosts Carbon Capture, Solar Energy and High Gas...  

Office of Environmental Management (EM)

Boosts Carbon Capture, Solar Energy and High Gas Mileage Cars and Trucks New Funding Boosts Carbon Capture, Solar Energy and High Gas Mileage Cars and Trucks June 11, 2009 -...

425

Carbon Dioxide Capture/Sequestration Tax Deduction (Kansas)  

Broader source: Energy.gov [DOE]

Carbon Dioxide Capture/Sequestration Tax Deduction allows a taxpayer a deduction to adjusted gross income with respect to the amortization of the amortizable costs of carbon dioxide capture,...

426

Perspectives on Carbon Capture and Sequestration in the United States  

E-Print Network [OSTI]

are capturing CO 2 emissions from a coal power plant you aresources of emissions, e.g. coal-fired power plants or cementemissions are captured from stationary sources such as coal-fired power

Wong-Parodi, Gabrielle

2011-01-01T23:59:59.000Z

427

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate First Quarterly Report 2007 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing

Rochelle, Gary T.

428

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Fourth Quarterly Report 2006 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing

Rochelle, Gary T.

429

Comparing Single and Multiple Turbine Representations in a Wind Farm Simulation: Preprint  

SciTech Connect (OSTI)

This paper compares single turbine representation versus multiple turbine representation in a wind farm simulation.

Muljadi, E.; Parsons, B.

2006-03-01T23:59:59.000Z

430

INDECOMPOSABLE REPRESENTATIONS FOR REAL ROOTS OF A WILD QUIVER  

E-Print Network [OSTI]

INDECOMPOSABLE REPRESENTATIONS FOR REAL ROOTS OF A WILD QUIVER BERNT TORE JENSEN AND XIUPING SU wild quiver. We define operations which act on representations of this quiver, and using representation and the generic representation coincide. We will see that for wild quivers, the situation can

Su, Xiuping

431

Value Capture in the Global Wind Energy Industry  

E-Print Network [OSTI]

K. 2007. Clipper Windpower: an overview of manufacturing.capture for 2.5MW Clipper Windpower Liberty turbine, 2008

Dedrick, Jason; Kraemer, Kenneth L.

2011-01-01T23:59:59.000Z

432

Submarine fan lobe models: Implications for reservoir properties  

SciTech Connect (OSTI)

A multitude of submarine fan lobe models, advocating widely different reservoir properties, has been introduced into the sedimentologic literature. Four of these models are compared to show their differences in reservoir properties. Braided suprafan lobes are characterized by stacked sand bodies with good lateral and vertical communication, and they constitute excellent reservoir facies. The unchanneled depositional lobes, composed of sheetlike sand bodies with good lateral and moderate vertical communication, exhibit properties of good reservoir facies. Fanlobes, which refer to meandering channels and associated levee facies of large mud-rich submarine fans such as the Mississippi Fan in the Gulf of Mexico, are characterized by offset stacked sand bodies with poor lateral and vertical communication. These lenticular sands have the potential to be moderately good reservoir facies. Ponded lobes, which represent mud-rich slump facies of slope environments, comprise poor reservoir facies because of poor sand content and poor sand-body connectivity caused by chaotic bedding. Furthermore, the presence of slumped mud layers in ponded lobes is expected to hinder fluid flow. Because different lobe models vary significantly from one another in terms of reservoir properties, caution must be exercised to apply the proper lobe model to ancient fan sequences in hydrocarbon exploration and production.

Shanmugam, G.; Moiola, R.J. (Mobil Research and Development Corp., Dallas, TX (USA))

1990-09-01T23:59:59.000Z

433

Putting integrated reservoir characterization into practice - in house training  

SciTech Connect (OSTI)

The need for even more efficient reservoir characterization and management has forced a change in the way Mobil Oil provides technical support to its production operations. We`ve learned that to be successful, a good understanding of the reservoir is essential. This includes an understanding of the technical and business significance of reservoir heterogeneities at different stages of field development. A multi-disciplinary understanding of the business of integrated reservoir characterization is essential and to facilitate this understanding, Mobil has developed a highly successful {open_quotes}Reservoir Characterization Field Seminar{close_quotes}. Through specific team based case studies that incorporate outcrop examples and data the program provides participants the opportunity to explore historic and alternative approaches to reservoir description, characterization and management. We explore appropriate levels and timing of data gathering, technology applications, risk assessment and management practices at different stages of field development. The case studies presented throughout the course are a unique element of the program which combine real life and hypothetical problem sets that explore how different technical disciplines interact, the approaches to a problem solving they use, the assumptions and uncertainties contained in their contributions and the impact those conclusions may have on other disciplines involved in the overall reservoir management process. The team building aspect of the course was an added bonus.

Wright, F.M. Jr.; Best, D.A.; Clarke, R.T. [Mobile Exploration and Producing Technical Center, Dallas, TX (United States)

1997-08-01T23:59:59.000Z

434

Identification and quantification of fracture behavior through reservoir simulation  

SciTech Connect (OSTI)

This study demonstrated the use of reservoir simulation as a tool for quantifying and describing the relative significance of fracture and matrix flow units to overall reservoir storage capacity and transmissibility in a field development example. A high matrix porosity Pennsylvanian age sandstone oil reservoir, that is currently undergoing the early stages of secondary recovery by waterflood, was studied. Unexpected early water breakthrough indicated the presence of a high directional permeability fracture system superimposed on the high porosity matrix system. To further understand the reservoir behavior, improve field performance and to quantify the relative contributions of fracture and matrix units to permeability and storage capacity, a reservoir simulation and characterization project was initiated. Well test, well log, tracer and geologic data were integrated into the simulation project. The integrated study indicated that the fractures exhibited high directional permeability but low storage capacity relative to the matrix portion of the reservoir. Although fractures heavily influenced overall fluid flow behavior, they did not contain large storage capacity. The system had a low calculated fracture intensity index. Reservoir simulation enabled the quantification of the relative importance of the two flow systems which in turn had a large impact on total reserves estimates and production forecasting. Simulation results indicated a need to realign injector and producer patterns which improved production rates and ultimate recovery.

Cline, S. [Univ. of Oklahoma, Oklahoma City, OK (United States)]|[Hefner Corporation, Oklahoma City, OK (United States)

1995-08-01T23:59:59.000Z

435

RESEARCH PROGRAM ON FRACTURED PETROLEUM RESERVOIRS  

SciTech Connect (OSTI)

Numerical simulation of water injection in discrete fractured media with capillary pressure is a challenge. Dual-porosity models in view of their strength and simplicity can be mainly used for sugar-cube representation of fractured media. In such a representation, the transfer function between the fracture and the matrix block can be readily calculated for water-wet media. For a mixed-wet system, the evaluation of the transfer function becomes complicated due to the effect of gravity. In this work, they use a discrete-fracture model in which the fractures are discretized as one dimensional entities to account for fracture thickness by an integral form of the flow equations. This simple step greatly improves the numerical solution. Then the discrete-fracture model is implemented using a Galerkin finite element method. The robustness and the accuracy of the approach are shown through several examples. First they consider a single fracture in a rock matrix and compare the results of the discrete-fracture model with a single-porosity model. Then, they use the discrete-fracture model in more complex configurations. Numerical simulations are carried out in water-wet media as well as in mixed-wet media to study the effect of matrix and fracture capillary pressures.

Abbas Firoozabadi

2002-04-12T23:59:59.000Z

436

Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine  

E-Print Network [OSTI]

i Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine Topical Report Prepared Pilot Plant Study of Carbon Dioxide Capture by Aqueous Monoethanolamine Ross Edward Dugas, M capture using monoethanolamine (MEA). MEA is an appropriate choice for a baseline study since

Rochelle, Gary T.

437

Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study  

E-Print Network [OSTI]

1 Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study by Anusha Kothandaraman Students #12;2 #12;3 Carbon Dioxide Capture by Chemical Absorption: A Solvent Comparison Study by Anusha with electricity generation accounting for 40% of the total1 . Carbon capture and sequestration (CCS) is one

438

THE COST OF CARBON CAPTURE Jeremy David and Howard Herzog  

E-Print Network [OSTI]

THE COST OF CARBON CAPTURE Jeremy David and Howard Herzog Massachusetts Institute of Technology's technology for CO2 separation and capture at three types of power plants: integrated coal gasification (NGCC). The analysis was based on studies from the literature that analyzed the economics of capturing

439

Biomass energy with carbon capture and storage (BECCS): a review  

E-Print Network [OSTI]

Biomass energy with carbon capture and storage (BECCS): a review Claire Gough, Paul Upham December are alternative terms for the coupling of bioenergy with carbon capture and storage (CCS). The paper follows from a workshop held in December 2009, hosted by the Scottish Centre for Carbon Capture and Storage

Matthews, Adrian

440

Capture-ready power plants : options, technologies and economics  

E-Print Network [OSTI]

A plant can be considered to be capture-ready if, at some point in the future it can be retrofitted for carbon capture and sequestration and still be economical to operate. The concept of capture-ready is not a specific ...

Bohm, Mark (Mark C.)

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Economic Modeling of Carbon Capture and Sequestration Technologies  

E-Print Network [OSTI]

Economic Modeling of Carbon Capture and Sequestration Technologies Jim McFarland (jrm1@mit.edu; +1 explores the economics of carbon capture and sequestration technologies as applied to electric generating of the world economy, is used to model two of the most promising carbon capture and sequestration (CCS

442

Tarmat behavior calculated for reservoir with sealing fault  

SciTech Connect (OSTI)

The Minagish Oolite oil reservoir in Kuwait is one of many Middle East reservoirs characterized by the presence of a tarmat (heavy to tar-like crude) at the oil-water contact. Since a waterflood project is planned for the Minagish Oolite, which contains a radial pattern of faults, a study was made to consider tarmat behavior upon water injection below it when the injection well is located near a sealing fault. The study resulted in a technique to predict the time of tarmat breakdown, response time at the nearest observation well, and differential pressure at the tarmat anywhere in the reservoir.

Osman, M.E.S.

1986-08-01T23:59:59.000Z

443

Flood control reservoir operations for conditions of limited storage capacity  

E-Print Network [OSTI]

). Therefore, if the entire flood control capacity of a reservoir is available, only an extremely severe flood event would require the implementation of the EOS for most reservoir projects, and thus the bulk of the research has been focused on how to manage... operations objectives. In other words, the REOS provide a set of rules that reflect the risk of flooding upstream as well as downstream of the dams. The USACE and other reservoir management agencies may use the methodology proposed in this study...

Rivera Ramirez, Hector David

2005-02-17T23:59:59.000Z

444

Strategies for Demonstration and Early Deployment of Carbon Capture and Storage: A Technical and Economic Assessment of Capture Percentage  

E-Print Network [OSTI]

Strategies for Demonstration and Early Deployment of Carbon Capture and Storage: A Technical;2 #12;Strategies for Demonstration and Early Deployment of Carbon Capture and Storage: A Technical and Policy at the Massachusetts Institute of Technology ABSTRACT Carbon capture and storage (CCS

445

Capture of carbon dioxide by hybrid sorption  

DOE Patents [OSTI]

A composition, process and system for capturing carbon dioxide from a combustion gas stream. The composition has a particulate porous support medium that has a high volume of pores, an alkaline component distributed within the pores and on the surface of the support medium, and water adsorbed on the alkaline component, wherein the proportion of water in the composition is between about 5% and about 35% by weight of the composition. The process and system contemplates contacting the sorbent and the flowing gas stream together at a temperature and for a time such that some water remains adsorbed in the alkaline component when the contact of the sorbent with the flowing gas ceases.

Srinivasachar, Srivats

2014-09-23T23:59:59.000Z

446

Neutron Captures in the r-Process  

E-Print Network [OSTI]

The r-process involves neutron-rich nuclei far off stability for which no experimental cross sections are known. Therefore, one has to rely on theory. The difficulties in the predictions are briefly addressed. To investigate the impact of altered rates, a comparison of r-process production in hot bubble models with largely varied rates is shown. Due to the (n,gamma)-(gamma,n) equilibrium established at the onset of the r-process, only late-time neutron captures are important which mainly modify the abundances around the third r-process peak.

T. Rauscher

2004-04-12T23:59:59.000Z

447

Capture of Carbon Dioxide Archived Projects  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N-Capture of Carbon Dioxide Archived

448

Wyoming Carbon Capture and Storage Institute  

SciTech Connect (OSTI)

This report outlines the accomplishments of the Wyoming Carbon Capture and Storage (CCS) Technology Institute (WCTI), including creating a website and online course catalog, sponsoring technology transfer workshops, reaching out to interested parties via news briefs and engaging in marketing activities, i.e., advertising and participating in tradeshows. We conclude that the success of WCTI was hampered by the lack of a market. Because there were no supporting financial incentives to store carbon, the private sector had no reason to incur the extra expense of training their staff to implement carbon storage. ii

Nealon, Teresa

2014-06-30T23:59:59.000Z

449

Carbon Capture and Storage | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power Systems EngineeringDepartment of4 Federal6CleanCaithness ShepherdsCapturingStorageStorage

450

Natural geometric representation for electron local observables  

SciTech Connect (OSTI)

An existence of the quartic identities for the electron local observables that define orthogonality relations for the 3D quantities quadratic in the electron observables is found. It is shown that the joint solution of the quartic and bilinear identities for the electron observables defines a unique natural representation of the observables. In the natural representation the vector type electron local observables have well-defined fixed positions with respect to a local 3D orthogonal reference frame. It is shown that the natural representation of the electron local observables can be defined in six different forms depending on a choice of the orthogonal unit vectors. The natural representation is used to determine the functional dependence of the electron wave functions on the local observables valid for any shape of the electron wave packet. -- Highlights: •Quartic identities that define the orthogonality relations for the electron local observables are found. •Joint solution of quartic and bilinear identities defines a unique natural representation of the electron local observables. •Functional dependence of the electron wave functions on the electron local observables is determined.

Minogin, V.G., E-mail: minogin@isan.troitsk.ru

2014-03-15T23:59:59.000Z

451

Disagreement between capture probabilities extracted from capture and quasi-elastic backscattering excitation functions  

E-Print Network [OSTI]

Experimental quasi-elastic backscattering and capture (fusion) excitation functions are usually used to extract the s-wave capture probabilities for the heavy-ion reactions. We investigated the $^{16}$O+$^{120}$Sn,$^{144}$Sm,$^{208}$Pb systems at energies near and below the corresponding Coulomb barriers and concluded that the probabilities extracted from quasi-elastic data are much larger than the ones extracted from fusion excitation functions at sub and deep-sub barrier energies. This seems to be a reasonable explanation for the known disagreement observed in literature for the nuclear potential diffuseness derived from both methods.

V. V. Sargsyan; G. G. Adamian; N. V. Antonenko; R. P. S. Gomes

2014-06-05T23:59:59.000Z

452

Sixteenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

The Sixteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 23-25, 1991. The Workshop Banquet Speaker was Dr. Mohinder Gulati of UNOCAL Geothermal. Dr. Gulati gave an inspiring talk on the impact of numerical simulation on development of geothermal energy both in The Geysers and the Philippines. Dr. Gulati was the first recipient of The Stanford Geothermal Program Reservoir Engineering Award for Excellence in Development of Geothermal Energy. Dr. Frank Miller presented the award. The registered attendance figure of one hundred fifteen participants was up slightly from last year. There were seven foreign countries represented: Iceland, Italy, Philippines, Kenya, the United Kingdom, Mexico, and Japan. As last year, papers on about a dozen geothermal fields outside the United States were presented. There were thirty-six papers presented at the Workshop, and two papers were submitted for publication only. Attendees were welcomed by Dr. Khalid Aziz, Chairman of the Petroleum Engineering Department at Stanford. Opening remarks were presented by Dr. Roland Horne, followed by a discussion of the California Energy Commission's Geothermal Activities by Barbara Crowley, Vice Chairman; and J.E. ''Ted'' Mock's presentation of the DOE Geothermal Program: New Emphasis on Industrial Participation. Technical papers were organized in twelve sessions concerning: hot dry rock, geochemistry, tracer injection, field performance, modeling, and chemistry/gas. As in previous workshops, session chairpersons made major contributions to the program. Special thanks are due to Joel Renner, Jeff Tester, Jim Combs, Kathy Enedy, Elwood Baldwin, Sabodh Garg, Marcel0 Lippman, John Counsil, and Eduardo Iglesias. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank Pat Ota, Angharad Jones, Rosalee Benelli, Jeanne Mankinen, Ted Sumida, and Terri A. Ramey who also produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate the audiovisual equipment and to Michael Riley who coordinated the meeting arrangements for a second year. Henry J. Ramey, Jr. Roland N. Horne Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook

Ramey, H.J. Jr.; Kruger, P.; Miller, F.G.; Horne, R.N.; Brigham, W.E.; Cook, J.W. (Stanford Geothermal Program) [Stanford Geothermal Program

1991-01-25T23:59:59.000Z

453

Nineteenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

PREFACE The Nineteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 18-20, 1994. This workshop opened on a sad note because of the death of Prof. Henry J. Ramey, Jr. on November 19, 1993. Hank had been fighting leukemia for a long time and finally lost the battle. Many of the workshop participants were present for the celebration of his life on January 21 at Stanford's Memorial Church. Hank was one of the founders of the Stanford Geothermal Program and the Geothermal Reservoir Engineering Workshop. His energy, kindness, quick wit, and knowledge will long be missed at future workshops. Following the Preface we have included a copy of the Memorial Resolution passed by the Stanford University Senate. There were one hundred and four registered participants. Participants were from ten foreign countries: Costa Rica, England, Iceland, Italy, Japan, Kenya, Mexico, New Zealand, Philippines and Turkey. Workshop papers described the performance of fourteen geothermal fields outside the United States. Roland N. Home opened the meeting and welcomed the visitors to the campus. The key note speaker was J.E. ''Ted'' Mock who gave a presentation about the future of geothermal development. The banquet speaker was Jesus Rivera and he spoke about Energy Sources of Central American Countries. Forty two papers were presented at the Workshop. Technical papers were organized in twelve sessions concerning: sciences, injection, production, modeling, and adsorption. Session chairmen are an important part of the workshop and our thanks go to: John Counsil, Mark Walters, Dave Duchane, David Faulder, Gudmundur Bodvarsson, Jim Lovekin, Joel Renner, and Iraj Ershaghi. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank Pat Ota, Ted Sumida, and Terri A. Ramey who also produces the Proceedings Volumes for publication. We owe a great deal of thanks to our students who operate audiovisual equipment and to Xianfa Deng who coordinated the meeting arrangements for the Workshop. Roland N. Home Frank G. Miller Paul Kruger William E. Brigham Jean W. Cook

Ramey, H.J. Jr.; Horne, R.J.; Kruger, P.; Miller, F.G.; Brigham, W.E.; Cook, J.W. (Stanford Geothermal Program)

1994-01-20T23:59:59.000Z

454

A Framework for Environmental Assessment of CO2 Capture and Storage Systems  

E-Print Network [OSTI]

Aaron DS, Williams KA. Is carbon capture and storage reallyal. Comparison of carbon capture and storage with renewablefuel power plants with carbon capture and storage. Energy

Sathre, Roger

2013-01-01T23:59:59.000Z

455

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

E-Print Network [OSTI]

a recent study by the Carbon Capture Project (CCP 2000), theof Fossil Hydrogen Energy Systems with Carbon Capture andThe Implications Of New Carbon Capture And Sequestration

Ogden, Joan M

2004-01-01T23:59:59.000Z

456

Spatially-explicit impacts of carbon capture and sequestration on water supply and demand  

E-Print Network [OSTI]

Annual Conference on Carbon Capture and Sequestration, MayEleventh Annual Carbon Capture, Utilization & Sequestrationplants with and without carbon capture. Presentation at 2009

Sathre, Roger

2014-01-01T23:59:59.000Z

457

Calcifying Cyanobacteria - The potential of biomineralization for Carbon Capture and Storage  

E-Print Network [OSTI]

Herzog H, Golomb D: Carbon Capture and Storage from Fossil for point-source carbon capture and sequestration. Althoughof renewable biofuels, and carbon capture and storage (CCS).

Jansson, Christer G

2010-01-01T23:59:59.000Z

458

Petrophysics -The Integration of Reservoir Geosciences Date: 22nd -25th September 2014  

E-Print Network [OSTI]

& Integrated Petrophyiscs and Uncertainty Management Date: 2nd - 7th March 2015 Reservoir SurveillancePetrophysics - The Integration of Reservoir Geosciences Date: 22nd - 25th September 2014 Analysis GL5517 Integrating Petrophysics and Seismic Data for Reservoir Characterisation GL55518 Reservoir

Levi, Ran

459

The Role of Geochemistry and Stress on Fracture Development and Proppant Behavior in EGS Reservoirs  

Broader source: Energy.gov [DOE]

Project objective: Develop Improved Methods For Maintaining Permeable Fracture Volumes In EGS Reservoirs.

460

Robust Optimization of Oil Reservoir Flooding G.M. van Essen, M.J. Zandvliet,  

E-Print Network [OSTI]

Robust Optimization of Oil Reservoir Flooding G.M. van Essen, M.J. Zandvliet, P.M.J. Van den Hof the reservoir to the subsurface. The injection wells inject water into the oil reservoir with the aim to push reservoirs, the oil-water front does not travel uniformly towards the pro- duction wells, but is usually

Van den Hof, Paul

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Bayes Linear Uncertainty Analysis for Oil Reservoirs Based on Multiscale Computer Experiments  

E-Print Network [OSTI]

Bayes Linear Uncertainty Analysis for Oil Reservoirs Based on Multiscale Computer Experiments, 2008 1 Introduction Reservoir simulators are important and widely-used tools for oil reservoir for reservoirs, where the model inputs are physical parameters, such as the permeability and porosity of various

Oakley, Jeremy

462

Effects of Original Vegatation on Reservoir Water Quality  

E-Print Network [OSTI]

The purpose of this study was to undertake an initial step that would lead to a better understanding of the effects of nutrients released from vegetation inundated by water at newly constructed reservoirs. Specifically, a series of leaching studies...

Ball, J.; Weldon, C.; Crocker, B.

463

Simulation of naturally fractured reservoirs using empirical transfer function  

E-Print Network [OSTI]

This research utilizes the imbibition experiments and X-ray tomography results for modeling fluid flow in naturally fractured reservoirs. Conventional dual porosity simulation requires large number of runs to quantify transfer function parameters...

Tellapaneni, Prasanna Kumar

2004-09-30T23:59:59.000Z

464

Heavy oil reservoirs recoverable by thermal technology. Annual report  

SciTech Connect (OSTI)

This volume contains reservoir, production, and project data for target reservoirs thermally recoverable by steam drive which are equal to or greater than 2500 feet deep and contain heavy oil in the 8 to 25/sup 0/ API gravity range. Data were collected from three source types: hands-on (A), once-removed (B), and twice-removed (C). In all cases, data were sought depicting and characterizing individual reservoirs as opposed to data covering an entire field with more than one producing interval or reservoir. The data sources are listed at the end of each case. This volume also contains a complete listing of operators and projects, as well as a bibliography of source material.

Kujawa, P.

1981-02-01T23:59:59.000Z

465

Pressure test data reveal reservoir barriers/faults  

SciTech Connect (OSTI)

A review of transient pressure test data from an oil reservoir in Libya indicated not only the suspected fault barriers, but also the non-sealing portions of the faults. Extensive seismic data indicated much faulting, and directional trends had been interpreted to be generally northwest-southeast. The reservoir is a heterogeneous dolomite with average permeability of 40 to 50 md and contains neither natural fractures not stratification. Vertical displacement (throw) of each fault block is indicated to be within the range of the dolomite thickness, i.e., 40 to 180 ft. Therefore, when the fault throw is greater than reservoir thickness there is sealing, and when the throw is less than reservoir thickness the faults are non-sealing.

Hurd, J.D.

1984-07-30T23:59:59.000Z

466

Problems of fluid flow in a deformable reservoir  

E-Print Network [OSTI]

itself and the surrounding rock mass. The change in the stress-strain state of the system is induced by pressure change in the layers of the reservoir. Numerical results qualitatively agree with observed field behavior. Such behavior includes (1...

Diyashev, Ildar

2006-04-12T23:59:59.000Z

467

Geomechanical Development of Fractured Reservoirs During Gas Production  

E-Print Network [OSTI]

is constructed by implementing a poroviscoelastic model into the dual permeability (DPM)-finite element model (FEM) to investigate the coupled time-dependent viscoelastic deformation, fracture network evolution and compressible fluid flow in gas shale reservoir...

Huang, Jian

2013-04-05T23:59:59.000Z

468

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

469

The Role of Acidizing in Proppant Fracturing in Carbonate Reservoirs  

E-Print Network [OSTI]

of the most widely considered alternatives for application in carbonate reservoirs. Especially in areas that have high closure stress, the non-smoothly etched surface created by acid fracturing may not remain open upon closing, resulting in decrease...

Densirimongkol, Jurairat

2010-10-12T23:59:59.000Z

470

Acidizing of Sandstone Reservoirs Using HF and Organic Acids  

E-Print Network [OSTI]

Mud acid, which is composed of HCl and HF, is commonly used to remove the formation damage in sandstone reservoirs. However, many problems are associated with HCl, especially at high temperatures. Formic-HF acids have served as an alternative...

Yang, Fei

2012-10-19T23:59:59.000Z

471

Reservoir Simulation Used to Plan Diatomite Developement in Mountainous Region  

E-Print Network [OSTI]

In Santa Barbara County, Santa Maria Pacific (an exploration and production company) is expanding their cyclic steam project in a diatomite reservoir. The hilly or mountainous topography and cut and fill restrictions have interfered with the company...

Powell, Richard

2012-10-19T23:59:59.000Z

472

An Integrated Study Method For Exploration Of Gas Hydrate Reservoirs...  

Open Energy Info (EERE)

approach for exploration of gas hydrate reservoirs in marine areas. Authors C. Y. Sun, B. H. Niu, P. F. Wen, Y. Y. Huang, H. Y. Wang, X. W. Huang and J. Li Published Journal...

473

Evaluation of hydrogen sulfide concentrations in Norwegian reservoir fluids  

E-Print Network [OSTI]

exponential relationship between [HZS] and reservoir temperature, the others include additional fluid parameters. This contribution is considered of particular importance for planning [HZS] control strategies and for production management....

Haland, Kjersti

1998-01-01T23:59:59.000Z

474

Static Reservoir Model Upgridding and Design of User Interface  

E-Print Network [OSTI]

other advantages. The desire for the assessment of risk and uncertainty in reservoir performance is another key issue that is attracting the researchers. Predictions are necessarily of a statistical character because uncertainty is involved in almost all...

Du, Song

2011-02-22T23:59:59.000Z

475

Streamline-based production data integration in naturally fractured reservoirs  

E-Print Network [OSTI]

Streamline-based models have shown great potential in reconciling high resolution geologic models to production data. In this work we extend the streamline-based production data integration technique to naturally fractured reservoirs. We use a...

Al Harbi, Mishal H.

2005-08-29T23:59:59.000Z

476

Optimum Reservoir Operation for Flood Control and Conservation Purposes  

E-Print Network [OSTI]

. With stringent flood plain management, susceptibility to flooding could actually decrease over time as existing activities choose to leave the flood plain and regulation prevents other activities from moving into the flood plain. Reservoir sedimentation reduces...

Wurbs, Ralph A.; Cabezas, L. Morris; Tibbets, Michael N.

477

Understanding reservoir mechanisms using phase and component streamline tracing  

E-Print Network [OSTI]

some important signatures of reservoir dynamics, such as dominant phase in flow, appearance and disappearance of phases (e.g. gas), and flow of components like CO2. In the work being presented, we demonstrate the benefits of visualizing phase...

Kumar, Sarwesh

2009-05-15T23:59:59.000Z

478

Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This project will provide the first ever formal evaluation of fracture and fracture flow evolution in an EGS reservoir following a hydraulic stimulation.

479

Exploration model for possible geothermal reservoir, Coso Hot...  

Open Energy Info (EERE)

Abstract The purpose of this study was to test the hypothesis that a steam-filled fracture geothermal reservoir exists at Coso Hot Springs KGRA, as proposed by Combs and...

480

Three-dimensional Modeling of Fracture Clusters in Geothermal Reservoirs  

Broader source: Energy.gov [DOE]

Project objective: to develop a 3-D numerical model for simulating mode I; II; and III (tensile; shear; and tearing propagation of multiple fractures using the virtual multi-dimensional internal bond (VMIB); to predict geothermal reservoir stimulation.

Note: This page contains sample records for the topic "representations capturing reservoir" 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

Well Productivity Enhancement of High Temperature Heterogeneous Carbonate Reservoirs  

E-Print Network [OSTI]

Acidizing is one of the most popular techniques for well productivity enhancement during oil and gas production. However, the treatment method is not very effective when the wellbore penetrates through multiple layers of heterogeneous reservoirs...

Wang, Guanqun

2014-05-08T23:59:59.000Z

482

Seismic characterization of fractured reservoirs by focusing Gaussian beams  

E-Print Network [OSTI]

Naturally fractured reservoirs occur worldwide, and they account for the bulk of global oil production. The most important impact of fractures is their influence on fluid flow. To maximize oil production, the characterization ...

Zheng, Yingcai

483

Seismic characterization of fractured reservoirs using 3D double beams  

E-Print Network [OSTI]

We propose an efficient target-oriented method to characterize seismic properties of fractured reservoirs: the spacing between fractures and the fracture orientation. We use both singly scattered and multiply scattered ...

Zheng, Yingcai

2012-01-01T23:59:59.000Z

484

Reservoir Characterization with Limited Sample Data using Geostatistics  

E-Print Network [OSTI]

The primary objective of this dissertation was to develop a systematic method to characterize the reservoir with the limited available data. The motivation behind the study was characterization of CO2 pilot area in the Hall Gurney Field, Lansing...

Ghoraishy, Sayyed Mojtaba

2008-01-01T23:59:59.000Z

485

Hydroacoustic Estimates of Fish Density Distributions in Cougar Reservoir, 2011  

SciTech Connect (OSTI)

Day and night mobile hydroacoustic surveys were conducted once each month from April through December 2011 to quantify the horizontal and vertical distributions of fish throughout Cougar Reservoir, Lane County, Oregon.

Ploskey, Gene R.; Zimmerman, Shon A.; Hennen, Matthew J.; Batten, George W.; Mitchell, T. D.

2012-09-01T23:59:59.000Z

486

Reservoir Operation by Ant Colony Optimization Algorithms M. R. ...  

E-Print Network [OSTI]

1. Reservoir Operation by Ant Colony Optimization Algorithms. M. R. Jalali1; A. Afshar2; and M. A. Mariño, Hon.M.ASCE3. Abstract: In this paper, ant colony ...

Jalali

2000-11-05T23:59:59.000Z

487

Scattering Characteristics In Heterogeneous Fractured Reservoirs From Waveform Estimation  

E-Print Network [OSTI]

Offset-dependent characteristics of seismic scattering are useful in the interpretation of fractured reservoirs. Synthetic seismograms generated by a 3-D finite difference modeling are used to study elastic wave propagation ...

Shen, Feng

1998-01-01T23:59:59.000Z

488

Discrete Feature Approach for Heterogeneous Reservoir Production Enhancement  

SciTech Connect (OSTI)

The report presents summaries of technology development for discrete feature modeling in support of the improved oil recovery (IOR) for heterogeneous reservoirs. In addition, the report describes the demonstration of these technologies at project study sites.

Dershowitz, William S.; Curran, Brendan; Einstein, Herbert; LaPointe, Paul; Shuttle, Dawn; Klise, Kate

2002-07-26T23:59:59.000Z

489

Geothermal Resource-Reservoir Investigations Based On Heat Flow...  

Open Energy Info (EERE)

Resource-Reservoir Investigations Based On Heat Flow And Thermal Gradient Data For The United States Jump to: navigation, search OpenEI Reference LibraryAdd to library Report:...

490

Capturing CO2 via reactions in nanopores.  

SciTech Connect (OSTI)

This one-year exploratory LDRD aims to provide fundamental understanding of the mechanism of CO2 scrubbing platforms that will reduce green house gas emission and mitigate the effect of climate change. The project builds on the team member's expertise developed in previous LDRD projects to study the capture or preferential retention of CO2 in nanoporous membranes and on metal oxide surfaces. We apply Density Functional Theory and ab initio molecular dynamics techniques to model the binding of CO2 on MgO and CaO (100) surfaces and inside water-filled, amine group functionalized silica nanopores. The results elucidate the mechanisms of CO2 trapping and clarify some confusion in the literature. Our work identifies key future calculations that will have the greatest impact on CO2 capture technologies, and provides guidance to science-based design of platforms that can separate the green house gas CO2 from power plant exhaust or even from the atmosphere. Experimentally, we modify commercial MFI zeolite membranes and find that they preferentially transmit H2 over CO2 by a factor of 34. Since zeolite has potential catalytic capability to crack hydrocarbons into CO2 and H2, this finding paves the way for zeolite membranes that can convert biofuel into H2 and separate the products all in one step.

Leung, Kevin; Nenoff, Tina Maria; Criscenti, Louise Jacqueline; Tang, Z [University of Cincinnati; Dong, J. H. [University of Cincinnati

2008-10-01T23:59:59.000Z

491

Quantized Hamiltonian dynamics captures the low-temperature regime of charge transport in molecular crystals  

SciTech Connect (OSTI)

The quantized Hamiltonian dynamics (QHD) theory provides a hierarchy of approximations to quantum dynamics in the Heisenberg representation. We apply the first-order QHD to study charge transport in molecular crystals and find that the obtained equations of motion coincide with the Ehrenfest theory, which is the most widely used mixed quantum-classical approach. Quantum initial conditions required for the QHD variables make the dynamics surpass Ehrenfest. Most importantly, the first-order QHD already captures the low-temperature regime of charge transport, as observed experimentally. We expect that simple extensions to higher-order QHDs can efficiently represent other quantum effects, such as phonon zero-point energy and loss of coherence in the electronic subsystem caused by phonons.

Wang, Linjun, E-mail: linjun.wang@rochester.edu, E-mail: oleg.prezhdo@rochester.edu; Chen, Liping; Prezhdo, Oleg V., E-mail: linjun.wang@rochester.edu, E-mail: oleg.prezhdo@rochester.edu [Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States); Akimov, Alexey V. [Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States) [Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States); Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

2013-11-07T23:59:59.000Z

492

REAL-TIME TRACER MONITORING OF RESERVOIR STIMULATION PROCEDURES  

SciTech Connect (OSTI)

Ongoing Phase 2 work comprises the development and field-testing of a real-time reservoir stimulation diagnostic system. Phase 3 work commenced in June 2001, and involved conducting research, development and field-testing of real-time enhanced dual-fluid stimulation processes. Experimental field-testing to date includes three well tests. Application of these real-time stimulation processes and diagnostic technologies has been technically successful with commercial production from the ''marginal'' reservoirs in the first two well tests. The third well test proved downhole-mixing is an efficient process for acid stimulation of a carbonate reservoir that produced oil and gas with 2200 psi bottomhole reservoir pressure, however, subsequent shut-in pressure testing indicated the reservoir was characterized by low-permeability. Realtimezone continues to seek patent protection in foreign markets to the benefit of both RTZ and NETL. Realtimezone and the NETL have licensed the United States patented to Halliburton Energy Services (HES). Ongoing Phase 2 and Phase 3 field-testing continues to confirm applications of both real-time technologies, from well testing conducted over the last 12-month work period and including well test scheduled for year-end of 2002. Technical data transfer to industry is ongoing via Internet tech-transfer, public presentations and industry publications. Final Phase 3 test work will be focused on further field-testing the innovational process of blending stimulation fluids downhole. This system provides a number of advantages in comparison to older industry fracturing techniques and allows the operator to control reservoir fracture propagation and concentrations of proppant placed in the reservoir, in real-time. Another observed advantage is that lower friction pressures result, which results in lower pump treating pressures and safer reservoir hydraulic fracturing jobs.

George Scott III

2002-08-01T23:59:59.000Z

493

Heavy oil reservoirs recoverable by thermal technology. Annual report  

SciTech Connect (OSTI)

The purpose of this study was to compile data on reservoirs that contain heavy oil in the 8 to 25/sup 0/ API gravity range, contain at least ten million barrels of oil currently in place, and are non-carbonate in lithology. The reservoirs within these constraints were then analyzed in light of applicable recovery technology, either steam-drive or in situ combustion, and then ranked hierarchically as candidate reservoirs. The study is presented in three volumes. Volume I presents the project background and approach, the screening analysis, ranking criteria, and listing of candidate reservoirs. The economic and environmental aspects of heavy oil recovery are included in appendices to this volume. This study provides an extensive basis for heavy oil development, but should be extended to include carbonate reservoirs and tar sands. It is imperative to look at heavy oil reservoirs and projects on an individual basis; it was discovered that operators, and industrial and government analysts will lump heavy oil reservoirs as poor producers, however, it was found that upon detailed analysis, a large number, so categorized, were producing very well. A study also should be conducted on abandoned reservoirs. To utilize heavy oil, refiners will have to add various unit operations to their processes, such as hydrotreaters and hydrodesulfurizers and will require, in most cases, a lighter blending stock. A big problem in producing heavy oil is that of regulation; specifically, it was found that the regulatory constraints are so fluid and changing that one cannot settle on a favorable recovery and production plan with enough confidence in the regulatory requirements to commit capital to the project.

Kujawa, P.

1981-02-01T23:59:59.000Z

494

A critical evaluation of factors affecting reservoir yield estimates  

E-Print Network [OSTI]

Statement of Problem Estimation of reservoir yield is fundamental to water resources planning and management. Effective management of the surface water resource of a river basin requires an understanding of the amount of water which can be provided... and approaches used in handling various complicating factors. Water supply planning and management involves complex institutional, legal, hydrologic, and physical systems. Streamflow, reservoir sedimentation, evaporation, water demands, and other variables...

Bergman, Carla Elaine

1987-01-01T23:59:59.000Z

495

Use of east Texas reservoirs by wintering bald eagles  

E-Print Network [OSTI]

to Human Activities CONCLUSION Lakeshore Disturbances and Management Recommendations Public Attitude The Future . LITERATURE CITED APPENDIX - OTHER AVIAN SPECIES THIS RESEARCHER COMMONLY OBSERVED SHARING EAST TEXAS RESERVOIRS WITH BALD EAGLES... for the presence of late-departing eagles. 28 Project managers for each Corps of Engineers reservoir in the study area, river authorities, power plant personnel, regional U. S. Forest Service offices, and lumber- companies were contacted in person...

Russell, Sandra Joy

1982-01-01T23:59:59.000Z

496

A manual for evaluation and exploitation of carbonate reservoirs  

E-Print Network [OSTI]

A MANUAL FOR EVALUATION AND EXPI OITATION OF CARBONATE RESERVOIRS A Thesis bv PEDRO CORDOVA Submitted to the Office of Graduate Studies of Texas ASM University In Partial fulfillment of the requiren;enis for (he dc(n. ee of MASTER OF SCIENCE.... Brimhall (Member) James E. Russell (Head of Department) December 1992 ABSTRACT A Manual for Evaluation and Exploitation of Carbonate Reservoirs. (December 1992) Pedro Luis Cordova, B. S. , Universidad del Zulia Chair of Advisory Committee: Dr. W. J...

Cordova, Pedro Luis

1992-01-01T23:59:59.000Z

497

US production of natural gas from tight reservoirs  

SciTech Connect (OSTI)

For the purposes of this report, tight gas reservoirs are defined as those that meet the Federal Energy Regulatory Commission`s (FERC) definition of tight. They are generally characterized by an average reservoir rock permeability to gas of 0.1 millidarcy or less and, absent artificial stimulation of production, by production rates that do not exceed 5 barrels of oil per day and certain specified daily volumes of gas which increase with the depth of the reservoir. All of the statistics presented in this report pertain to wells that have been classified, from 1978 through 1991, as tight according to the FERC; i.e., they are ``legally tight`` reservoirs. Additional production from ``geologically tight`` reservoirs that have not been classified tight according to the FERC rules has been excluded. This category includes all producing wells drilled into legally designated tight gas reservoirs prior to 1978 and all producing wells drilled into physically tight gas reservoirs that have not been designated legally tight. Therefore, all gas production referenced herein is eligible for the Section 29 tax credit. Although the qualification period for the credit expired at the end of 1992, wells that were spudded (began to be drilled) between 1978 and May 1988, and from November 5, 1990, through year end 1992, are eligible for the tax credit for a subsequent period of 10 years. This report updates the EIA`s tight gas production information through 1991 and considers further the history and effect on tight gas production of the Federal Government`s regulatory and tax policy actions. It also provides some high points of the geologic background needed to understand the nature and location of low-permeability reservoirs.

Not Available

1993-10-18T23:59:59.000Z

498

Nash reservoir management study with stochastic images -- A case study  

SciTech Connect (OSTI)

An application of geostatistical modeling in the context of a full-field reservoir model study of the Northeast Nash waterflood is described. Geostatistics provides value in preparing and quickly modifying a self-consistent model of reservoir geology. It does not, however, provide a complete description of all the geologic features that impact fluid flow. A rationale for selecting a stochastic description instead of a deterministic description is presented.

Fanchi, J.R.; Meng, H.Z.; Stoltz, R.P.; Owen, M.W.

1996-09-01T23:59:59.000Z

499

Reservoir rock-property calculations from thin section measurements  

E-Print Network [OSTI]

RESERVOIR ROCK-PROPERTY CALCULATIONS FROM THIN SECTION MEASUREMENTS A Thesis by DAVID RICHARD SNEED Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1988 Major Subject: Geology RESERVOIR ROCK-PROPERTY CALCULATIONS FROM THIN SECTION MEASUREMENTS A Thesis by DAVID RICHARD SNEED Approved as to style and content by: Robert R. Berg (Chair of Committee) ~ c(. Thomas T. Tieh (Member...

Sneed, David Richard

1988-01-01T23:59:59.000Z

500

Recreation land policies of Texas river authorities operating reservoirs  

E-Print Network [OSTI]

RECREATION LAND POLICIES OF TEXAS RIVER AUTHORITIES OPERATING RESERVOIRS A Thesis by LOU ELLEN RUESINK Submitted to the Graduate College of Texas A1IM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1979 Major Subject: Recreation and Resources Developmenr. RECREATION LAND POLICIES OF TEXAS RIVER AUTHORITIES OPERATING RESERVOIRS A Thesis by LOU ELLEN RUESINK Approved as to sty1e and content by: (Chairman of o ittee) (Member...

Ruesink, Lou Ellen

1979-01-01T23:59:59.000Z