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1

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

2

Borehole geophysics evaluation of the Raft River geothermal reservoir,  

Open Energy Info (EERE)

reservoir, reservoir, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; GEOPHYSICAL SURVEYS; RAFT RIVER VALLEY; GEOTHERMAL EXPLORATION; BOREHOLES; EVALUATION; HOT-WATER SYSTEMS; IDAHO; MATHEMATICAL MODELS; WELL LOGGING; CAVITIES; EXPLORATION; GEOTHERMAL SYSTEMS; HYDROTHERMAL SYSTEMS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Author(s): Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace, T.L. Published: Geophysics, 2/1/1977 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article Geophysical Method At Raft River Geothermal Area (1977) Raft River Geothermal Area

3

Borehole geophysics evaluation of the Raft River geothermal reservoir |  

Open Energy Info (EERE)

reservoir reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Borehole geophysics evaluation of the Raft River geothermal reservoir Details Activities (1) Areas (1) Regions (0) Abstract: Borehole geophysics techniques were used in evaluating the Raft River geothermal reservoir to establish a viable model for the system. The assumed model for the hot water (145/sup 0/C) reservoir was a zone of higher conductivity, increased porosity, decreased density, and lower sonic velocity. It was believed that the long term contact with the hot water would cause alteration producing these effects. With this model in mind, cross-plots of the above parameters were made to attempt to delineate the reservoir. It appears that the most meaningful data include smoothed and

4

Selecting The Optimal Logging Suite For Geothermal Reservoir Evaluation-  

Open Energy Info (EERE)

Selecting The Optimal Logging Suite For Geothermal Reservoir Evaluation- Selecting The Optimal Logging Suite For Geothermal Reservoir Evaluation- Results From The Alum 25-29 Well, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Selecting The Optimal Logging Suite For Geothermal Reservoir Evaluation- Results From The Alum 25-29 Well, Nevada Details Activities (6) Areas (1) Regions (0) Abstract: This paper presents the results of analysis of a state of the art set of wireline petrophysical and wellbore image logs recorded in the Alum 25-29 well, southwestern Nevada. The Alum well penetrated nearly 2000 ft (610 m) of volcano-clastic rocks and more than 1000 ft of basement, separated from the sediments by a shallowly dipping detachment fault. The logs were acquired both to characterize the site and also to select the

5

Evaluation of testing and reservoir parameters in geothermal...  

Open Energy Info (EERE)

testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings:...

6

Reservoir evaluation tests on RRGE 1 and RRGE 2, Raft River Geothermal  

Open Energy Info (EERE)

evaluation tests on RRGE 1 and RRGE 2, Raft River Geothermal evaluation tests on RRGE 1 and RRGE 2, Raft River Geothermal Project, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Reservoir evaluation tests on RRGE 1 and RRGE 2, Raft River Geothermal Project, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Results of the production and interference tests conducted on the geothermal wells RRGE 1 and RRGE 2 in Raft River Valley, Idaho during September--November, 1975 are presented. In all, three tests were conducted, two of them being short-duration production tests and one, a long duration interference test. In addition to providing estimates on the permeability and storage parameters of the geothermal reservoir, the tests also indicated the possible existence of barrier boundaries. The data

7

Evaluation of testing and reservoir parameters in geothermal wells at Raft  

Open Energy Info (EERE)

testing and reservoir parameters in geothermal wells at Raft testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Evaluation of testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Evaluating the Raft River and Boise, Idaho, resources by pump and injection tests require information on the geology, geochemistry, surficial and borehole geophysics, and well construction and development methods. Nonideal test conditions and a complex hydrogeologic system prevent the use of idealized mathematical models for data evaluation in a one-phase fluid system. An empirical approach is successfully used since it was observed that all valid pump and injection well pressure data for constant discharge

8

Modeling of Geothermal Reservoirs: Fundamental Processes, Computer  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Modeling of Geothermal Reservoirs: Fundamental Processes, Computer Simulation and Field Applications Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Modeling of Geothermal Reservoirs: Fundamental Processes, Computer Simulation and Field Applications Abstract This article attempts to critically evaluate the present state of the art of geothermal reservoir simulation. Methodological aspects of geothermal reservoir modeling are briefly reviewed, with special emphasis on flow in fractured media. We then examine some applications of numerical simulation to studies of reservoir dynamics, well test design and analysis, and modeling of specific fields. Tangible impacts of reservoir simulation

9

Borehole geophysics evaluation of the Raft River geothermal reservoir...  

Open Energy Info (EERE)

GEOTHERMAL SYSTEMS; HYDROTHERMAL SYSTEMS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Authors Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace and T.L. Published...

10

Reservoir evaluation tests on RRGE 1 and RRGE 2, Raft River Geothermal...  

Open Energy Info (EERE)

response to the changes in the Earth's gravitational field caused by the passage of the sun and the moon. Overall, the results of the tests indicate that the geothermal reservoir...

11

Analysis of Geothermal Reservoir Stimulation Using Geomechanics...  

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

System (EGS) Reservoir; 2010 Geothermal Technology Program Peer Review Report Seismic Fracture Characterization Methods for Enhanced Geothermal Systems; 2010 Geothermal Technology...

12

Blackfoot Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Blackfoot Reservoir Geothermal Area Blackfoot Reservoir Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Blackfoot Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Idaho Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

13

Blackfoot Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Blackfoot Reservoir Geothermal Area Blackfoot Reservoir Geothermal Area (Redirected from Blackfoot Reservoir Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Blackfoot Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Idaho Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

14

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

15

Chelated Indium Activable Tracers for Geothermal Reservoirs  

E-Print Network [OSTI]

SGP-TR-99 Chelated Indium Activable Tracers for Geothermal Reservoirs Constantinos V. Chrysikopoulos Paul Kruger June 1986 Financial support was provided through the Stanford Geothermal Program under University Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD

Stanford University

16

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

17

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...

18

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

19

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...

20

INJECTION AND THERMAL BREAKTHROUGH IN FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

geothermal reservoirs (except those in the Imperial Valley)Geothermal resource and reservoir investigation of U.S. Bureau of Reclamation Leaseholds at East Mesa, Imperial Valley,

Bodvarsson, Gudmundur S.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

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...

22

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

23

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

24

Reducing temperature uncertainties by stochastic geothermal reservoir modelling  

Science Journals Connector (OSTI)

......economically successful geothermal reservoirs. To this...An increased use of geothermal energy requires reliable estimates...exploration and development of geothermal reservoirs. Suitable...risk of failure and cost may be reduced and estimated......

C. Vogt; D. Mottaghy; A. Wolf; V. Rath; R. Pechnig; C. Clauser

2010-04-01T23:59:59.000Z

25

Reducing temperature uncertainties by stochastic geothermal reservoir modelling  

Science Journals Connector (OSTI)

......Section 4) for a current geothermal district heating project in The Hague...Geothermal Reservoir A geothermal district heating project in The Hague...2008. The Den Haag Geothermal District Heating Project-3-D Models......

C. Vogt; D. Mottaghy; A. Wolf; V. Rath; R. Pechnig; C. Clauser

2010-04-01T23:59:59.000Z

26

Magic Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Magic Reservoir Geothermal Area Magic Reservoir Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Magic Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.32833333,"lon":-114.3983333,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Geotechnical studies of geothermal reservoirs | Open Energy Information  

Open Energy Info (EERE)

Geotechnical studies of geothermal reservoirs Geotechnical studies of geothermal reservoirs Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geotechnical studies of geothermal reservoirs Details Activities (7) Areas (7) Regions (0) Abstract: It is proposed to delineate the important factors in the geothermal environment that will affect drilling. The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters that help describe the reservoir and overlying cap rock. The geologic environment and reservoir characteristics of several geothermal areas were studied, and drill bits were obtained from most of the areas. The geothermal areas studied are: (1) Geysers, California, (2) Imperial Valley, California, (3) Roosevelt Hot

28

GETEM-Geothermal Electricity Technology Evaluation Model  

Broader source: Energy.gov [DOE]

A guide to providing input to GETEM, the Geothermal Electricity Technology Evaluation Model. GETEM is designed to help the Geothermal Technologies Program of the U.S. Department of Energy in estimating some of the technical and economic values of its research projects and subprograms. The tool is intended to estimate and summarize the performance and cost of various geothermal electric power systems at geothermal reservoirs with a wide variety of physical characteristics.

29

Geothermal reservoir engineering code: comparison and validation  

SciTech Connect (OSTI)

INTERCOMP has simulated six geothermal reservoir problems. INTERCOMP's geothermal reservoir model was used for all problems. No modifications were made to this model except to provide tabular output of the simulation results in the units used in RFP No. DE-RP03-80SF-10844. No difficulty was encountered in performing the problems described herein, although setting up the boundary and grid conditions exactly as specified were sometimes awkward, and minor modifications to the grid system were necessitated. The results of each problem are presented in tabular and (for many) graphical form.

Not Available

1981-02-27T23:59:59.000Z

30

Geothermal Electricity Technology Evaluation Model | Department...  

Energy Savers [EERE]

Geothermal Electricity Technology Evaluation Model Geothermal Electricity Technology Evaluation Model The Geothermal Electricity Technology Evaluation Model (GETEM) aids the...

31

A Hydro-Thermo-Mechanical Numerical Model For Hdr Geothermal Reservoir  

Open Energy Info (EERE)

Hydro-Thermo-Mechanical Numerical Model For Hdr Geothermal Reservoir Hydro-Thermo-Mechanical Numerical Model For Hdr Geothermal Reservoir Evaluation Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Hydro-Thermo-Mechanical Numerical Model For Hdr Geothermal Reservoir Evaluation Details Activities (0) Areas (0) Regions (0) Abstract: A two-dimensional numerical model of coupled fluid flow, heat transfer and rock mechanics in naturally fractured rock is developed. The model is applicable to assessments of hot dry rock (HDR) geothermal reservoir characterisation experiments, and to the study of hydraulic stimulations and the heat extraction potential of HDR reservoirs. Modelling assumptions are based on the characteristics of the experimental HDR reservoir in the Carnmenellis granite in Cornwall, S. W. England. In

32

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

33

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

34

INJECTION AND THERMAL BREAKTHROUGH IN FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

geology of three geothermal wells, Klamath Falls, Oregon,evaluation of five geothermal wells: in Proceedings Second

Bodvarsson, Gudmundur S.

2012-01-01T23:59:59.000Z

35

An Updated Conceptual Model Of The Los Humeros Geothermal Reservoir  

Open Energy Info (EERE)

Humeros Geothermal Reservoir Humeros Geothermal Reservoir (Mexico) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Updated Conceptual Model Of The Los Humeros Geothermal Reservoir (Mexico) Details Activities (0) Areas (0) Regions (0) Abstract: An analysis of production and reservoir engineering data of 42 wells from the Los Humeros geothermal field (Mexico) allowed obtaining the pressure and temperature profiles for the unperturbed reservoir fluids and developing 1-D and 2-D models for the reservoir. Results showed the existence of at least two reservoirs in the system: a relatively shallow liquid-dominant reservoir located between 1025 and 1600 m above sea level (a.s.l.) the pressure profile of which corresponds to a 300-330°C boiling water column and a deeper low-liquid-saturation reservoir located between

36

ANALYSIS OF PRODUCTION DECLINE IN GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

their Application to Geothermal Well Testing, in Geothermalthe Performance of Geothermal Wells, Geothermal Res.of Production Data from Geothermal Wells, Geothermal Res.

Zais, E.J.; Bodvarsson, G.

2008-01-01T23:59:59.000Z

37

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

38

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

39

Use Of Electrical Surveys For Geothermal Reservoir Characterization-  

Open Energy Info (EERE)

Use Of Electrical Surveys For Geothermal Reservoir Characterization- Use Of Electrical Surveys For Geothermal Reservoir Characterization- Beowawe Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Use Of Electrical Surveys For Geothermal Reservoir Characterization- Beowawe Geothermal Field Details Activities (4) Areas (1) Regions (0) Abstract: The STAR geothermal reservoir simulator was used to model the natural state of the Beowawe geothermal field, and to compute the subsurface distributions of temperature and salinity which were in turn employed to calculate pore-fluid resistivity. Archie's law, which relates formation resistivity to porosity and pore-fluid resistivity, was adopted to infer formation resistivity distribution. Subsequently, DC, MT and SP postprocessors were used to compute the expected response corresponding to

40

Issues surrounding fracturing of geothermal systems - predicting thermal conductivity of reservoir rocks and evaluating performance of fracture proppants.  

E-Print Network [OSTI]

??Traditional geothermal systems have been limited to geologic systems in which elevated temperatures, abundant water, and high porosity and permeability are found. Engineered geothermal systems (more)

Brinton, Daniel

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

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

42

Hydraulics and Well Testing of Engineered Geothermal Reservoirs...  

Open Energy Info (EERE)

Hydraulics and Well Testing of Engineered Geothermal Reservoirs Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Hydraulics and Well Testing of...

43

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:...

44

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

45

Integrated Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada |  

Open Energy Info (EERE)

Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Integrated Seismic Studies At The Rye Patch Geothermal Reservoir, Nevada Details Activities (2) Areas (1) Regions (0) Abstract: A 3-D surface seismic reflection survey, covering an area of over 3 square miles, was conducted at the Rye Patch geothermal reservoir (Nevada) to explore the structural features that may control geothermal production in the area. In addition to the surface sources and receivers, a high-temperature three-component seismometer was deployed in a borehole at a depth of 3900 ft within the basement below the reservoir, which recorded the waves generated by all surface sources. A total of 1959 first-arrival travel times were determined out of 2134 possible traces. Two-dimensional

46

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

47

FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR | Open Energy  

Open Energy Info (EERE)

FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: FLUID STRATIGRAPHY OF THE COSO GEOTHERMAL RESERVOIR Details Activities (1) Areas (1) Regions (0) Abstract: A fluid model for the Coso geothermal reservoir is developed from Fluid Inclusion Stratigraphy (FIS) analyses. Fluid inclusion gas chemistry in well cuttings collected at 20 ft intervals is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow, fluid processes and reservoir seals. Boiling and condensate zones are distinguished. Models are created using cross-sections and fence diagrams. A thick condensate and boiling zone is indicated across the western portion

48

Fluid Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir |  

Open Energy Info (EERE)

Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Fluid Stratigraphy and Permeable Zones of the Coso Geothermal Reservoir Details Activities (1) Areas (1) Regions (0) Abstract: A fence-diagram for the Coso geothermal reservoir is developed from Fluid Inclusion Stratigraphy (FIS) analyses. Fluid inclusion gas chemistry in well cuttings collected at 20 ft intervals is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow, fluid processes and reservoir seals. Boiling and condensate zones are distinguished. Permeable zones are indicated by a large change in

49

Twelfth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

Preface The Twelfth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 20-22, 1987. The year ending December 1986 was very difficult for the domestic geothermal industry. Low oil prices caused a sharp drop in geothermal steam prices. We expected to see some effect upon attendance at the Twelfth Workshop. To our surprise, the attendance was up by thirteen from previous years, with one hundred and fifty-seven registered participants. Eight foreign countries were represented: England, France, Iceland, Italy, Japan, Mexico, New Zealand, and Turkey. Despite a worldwide surplus of oil, international geothermal interest and development is growing at a remarkable pace. There were forty-one technical presentations at the Workshop. All of these are published as papers in this Proceedings volume. Seven technical papers not presented at the Workshop are also published; they concern geothermal developments and research in Iceland, Italy, and New Zealand. In addition to these forty-eight technical presentations or papers, the introductory address was given by Henry J. Ramey, Jr. from the Stanford Geothermal Program. The Workshop Banquet speaker was John R. Berg from the Department of Energy. We thank him for sharing with the Workshop participants his thoughts on the expectations of this agency in the role of alternative energy resources, specifically geothermal, within the country???s energy framework. His talk is represented as a paper in the back of this volume. The chairmen of the technical sessions made an important contribution to the workshop. Other than Stanford faculty members they included: M. Gulati, K. Goyal, G.S. Bodvarsson, A.S. Batchelor, H. Dykstra, M.J. Reed, A. Truesdell, J.S. Gudmundsson, and J.R. Counsil. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and students. We would like to thank Jean Cook, Marilyn King, Amy Osugi, Terri Ramey, and Rosalee Benelli for their valued help with the meeting arrangements and preparing the Proceedings. We also owe great thanks to our students who arranged and operated the audio-visual equipment, specially Jim Lovekin. The Twelfth Workshop was supported by the Geothermal Technology Division of the U. S. Department of Energy through Contract Nos. DE-AS03-80SF11459 and DE-AS07- 84ID12529. We deeply appreciate this continued support. January 1987 Henry J. Ramey, Jr. Paul Kruger Roland N. Horne William E. Brigham Frank G. Miller Jesus Rivera

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

1987-01-22T23:59:59.000Z

50

Geothermal reservoir well stimulation program. First-year progress report  

SciTech Connect (OSTI)

The Geothermal Reservoir Well Stimulation Program (GRWSP) group planned and executed two field experiments at the Raft River KGRA during 1979. Well RRGP-4 was stimulated using a dendritic (Kiel) hydraulic fracture technique and Well RRGP-5 was stimulated using a conventional massive hydraulic fracture technique. Both experiments were technically successful; however, the post-stimulation productivity of the wells was disappointing. Even though the artificially induced fractures probably successfully connected with the natural fracture system, reservoir performance data suggest that productivity remained low due to the fundamentally limited flow capacity of the natural fractures in the affected region of the reservoir. Other accomplishments during the first year of the program may be summarized as follows: An assessment was made of current well stimulation technology upon which to base geothermal applications. Numerous reservoirs were evaluated as potential candidates for field experiments. A recommended list of candidates was developed which includes Raft River, East Mesa, Westmorland, Baca, Brawley, The Geysers and Roosevelt Hot Springs. Stimulation materials (fracture fluids, proppants, RA tracer chemicals, etc.) were screened for high temperature properties, and promising materials selected for further laboratory testing. Numerical models were developed to aid in predicting and evaluating stimulation experiments. (MHR)

Not Available

1980-02-01T23:59:59.000Z

51

Characterization of geothermal reservoir crack patterns using shear-wave  

Open Energy Info (EERE)

geothermal reservoir crack patterns using shear-wave geothermal reservoir crack patterns using shear-wave splitting Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Characterization of geothermal reservoir crack patterns using shear-wave splitting Details Activities (1) Areas (1) Regions (0) Abstract: Microearthquakes recorded by a downhole, three-component seismic network deployed around the Coso, California, geothermal reservoir since 1992 display distinctive shear-wave splitting and clear polarization directions. From the polarizations the authors estimated three predominant subsurface fracture directions, and from the time delays of the split waves they determined tomographically the 3-D fracture density distribution in the reservoir. Author(s): Lou, M.; Rial, J.A. Published: Geophysics, 3/1/1997

52

Tectonic setting of the Coso geothermal reservoir | Open Energy Information  

Open Energy Info (EERE)

Tectonic setting of the Coso geothermal reservoir Tectonic setting of the Coso geothermal reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Tectonic setting of the Coso geothermal reservoir Details Activities (1) Areas (1) Regions (0) Abstract: The Coso geothermal reservoir is being developed in Sierran-type crystalline bedrock of the Coso Mountains, a small desert mountain range just to the east of the Sierra Nevada and Rose Valley, which is the southern extension of the Owens Valley of eastern California Optimum development of this reservoir requires an understanding of the fracture hydrology of the Coso Mountains crystalline terrain and its hydrologic connection to regional groundwater and thermal sources. An interpreted, conceptually balanced regional cross section that extends from the Sierra

53

Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal  

Open Energy Info (EERE)

Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Lithology and alteration mineralogy of reservoir rocks at Coso Geothermal Area, California Details Activities (1) Areas (1) Regions (0) Abstract: Coso is one of several high-temperature geothermal systems associated with recent volcanic activity in the Basin and Range province. Chemical and fluid inclusion data demonstrate that production is from a narrow, asymmetric plume of thermal water that originates from a deep reservoir to the south and then flows laterally to the north. Geologic controls on the geometry of the upwelling plume were investigated using petrographic and analytical analyses of reservoir rock and vein material.

54

Thirteenth workshop on geothermal reservoir engineering: Proceedings  

SciTech Connect (OSTI)

PREFACE The Thirteenth Workshop on Geothermal Reservoir Engineering was held at Stanford University on January 19-21, 1988. Although 1987 continued to be difficult for the domestic geothermal industry, world-wide activities continued to expand. Two invited presentations on mature geothermal systems were a keynote of the meeting. Malcolm Grant presented a detailed review of Wairakei, New Zealand and highlighted plans for new development. G. Neri summarized experience on flow rate decline and well test analysis in Larderello, Italy. Attendance continued to be high with 128 registered participants. Eight foreign countries were represented: England, France, Iceland, Italy, New Zealand, Japan, Mexico and The Philippines. A discussion of future workshops produced a strong recommendation that the Stanford Workshop program continue for the future. There were forty-one technical presentations at the Workshop. All of these are published as papers in this Proceedings volume. Four technical papers not presented at the Workshop are also published. In addition to these forty five technical presentations or papers, the introductory address was given by Henry J. Ramey, Jr. from the Stanford Geothermal Program. The Workshop Banquet speaker was Gustavo Calderon from the Inter-American Development Bank. We thank him for sharing with the Workshop participants a description of the Bank???s operations in Costa Rica developing alternative energy resources, specifically Geothermal, to improve the country???s economic basis. His talk appears as a paper in the back of this volume. The chairmen of the technical sessions made an important contribution to the workshop. Other than Stanford faculty members they included: J. Combs, G. T. Cole, J. Counsil, A. Drenick, H. Dykstra, K. Goyal, P. Muffler, K. Pruess, and S. K. Sanyal. The Workshop was organized by the Stanford Geothermal Program faculty, staff and students. We would like to thank Marilyn King, Pat Oto, Terri Ramey, Bronwyn Jones, Yasmin Gulamani, and Rosalee Benelli for their valued help with the meeting arrangements and preparing the Proceedings. We also owe great thanks to our students who arranged and operated the audio-visual equipment, especially Jeralyn Luetkehans. The Thirteenth Workshop was supported by the Geothermal Technology Division of the U.S. Department of Energy through Contract No. DE-AS07-84ID12529. We deeply appreciate this continued support. Henry J. Ramey, Jr. Paul Kruger Roland N. Horne William E. Brigham Frank G. Miller Jean W. Cook

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

1988-01-21T23:59:59.000Z

55

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

Scien- Producing Geothermal Wells. (LA 6 5 5 3 x ) t i f i cSteam-Water Flow i n Geothermal Wells. Journal o f Petroleumo f a Hawaii Geothermal Well-- HGP-A. It Geothermal

Sudo!, G.A

2012-01-01T23:59:59.000Z

56

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

f the Mesa Geothermal Anomaly, Imperial Valley, California.Pioneering Geothermal Test Work i n the Imperial Valley o f

Sudo!, G.A

2012-01-01T23:59:59.000Z

57

GETEM -Geothermal Electricity Technology Evaluation Model | Department...  

Energy Savers [EERE]

GETEM -Geothermal Electricity Technology Evaluation Model GETEM -Geothermal Electricity Technology Evaluation Model A guide to providing input to GETEM, the Geothermal Electricity...

58

GETEM - Geothermal Electricity Technology Evaluation Model |...  

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

GETEM - Geothermal Electricity Technology Evaluation Model GETEM - Geothermal Electricity Technology Evaluation Model A guide to providing input to GETEM, the Geothermal...

59

New method for evaluating composite reservoir systems  

SciTech Connect (OSTI)

A simple new technique has been developed for evaluating interference test data in radially symmetric composite reservoirs. The technique is based on the realization that systematic variations in the apparent storage coefficient (calculated from semi-log analysis of the late-time data are indicative of a two-mobility (k/..mu..) reservoir. By analyzing variations in the apparent storage coefficient, both the mobility and size of the inner region can be calculated. The technique is particularly useful for evaluating heterogeneous geothermal systems where the intersection of several faults, or hydrothermal alteration has created a high permeability region in the center of the geothermal field. The technique is applied to an extensive interference test in the geothermal reservoir at Klamath Falls, Oregon. 7 refs., 7 figs.

Benson, S.M.; Lai, C.H.

1985-03-01T23:59:59.000Z

60

Geothermal Exploration And Reservoir Monitoring Using Earthquakes And The  

Open Energy Info (EERE)

Geothermal Exploration And Reservoir Monitoring Using Earthquakes And The Geothermal Exploration And Reservoir Monitoring Using Earthquakes And The Passive Seismic Method Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Geothermal Exploration And Reservoir Monitoring Using Earthquakes And The Passive Seismic Method Details Activities (1) Areas (1) Regions (0) Abstract: This paper reviews the use of earthquake studies in the field of geothermal exploration. Local, regional and teleseismic events can all provide useful information about a geothermal area on various scales. It is imperative that data collection is conducted in properly designed, realistic experiments. Ground noise is still of limited usefulness as a prospecting tool. The utility of the method cannot yet be assessed because of its undeveloped methodology and the paucity of case histories.

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

FLUID INCLUSION STRATIGRAPHY: NEW METHOD FOR GEOTHERMAL RESERVOIR  

Open Energy Info (EERE)

FLUID INCLUSION STRATIGRAPHY: NEW METHOD FOR GEOTHERMAL RESERVOIR FLUID INCLUSION STRATIGRAPHY: NEW METHOD FOR GEOTHERMAL RESERVOIR ASSESSMENT PRELIMINARY RESULTS Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: FLUID INCLUSION STRATIGRAPHY: NEW METHOD FOR GEOTHERMAL RESERVOIR ASSESSMENT PRELIMINARY RESULTS Details Activities (1) Areas (1) Regions (0) Abstract: Fluid Inclusion Stratigraphy (FIS) is a new technique developed for the oil industry in order to map borehole fluids. This method is being studied for application to geothermal wells and is funded by the California Energy Commission. Fluid inclusion gas geochemistry is analyzed and plotted on well log diagrams. The working hypothesis is that select gaseous species and species ratios indicate areas of groundwater and reservoir fluid flow

62

Characterization of Fractures in Geothermal Reservoirs Using Resistivity |  

Open Energy Info (EERE)

Characterization of Fractures in Geothermal Reservoirs Using Resistivity Characterization of Fractures in Geothermal Reservoirs Using Resistivity Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Characterization of Fractures in Geothermal Reservoirs Using Resistivity Abstract The optimal design of production in fractured geothermal reservoirs requires knowledge of the resource's connectivity, therefore making fracture characterization highly important. This study aims to develop methodologies to use resistivity measurements to infer fracture properties in geothermal fields. The resistivity distribution in the field can be estimated by measuring potential differences between various points and the data can then be used to infer fracture properties due to the contrast in resistivity between water and rock.

63

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir  

Open Energy Info (EERE)

Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Hydrologic Properties of the Dixie Valley, Nevada, Geothermal Reservoir from Well-Test Analyses Abstract Temperature, pressure, and spinner (TPS) logs have been recorded in several wells from the Dixie Valley Geothermal Reservoir in west central Nevada. A variety of well-test analyses has been performed with these data to quantify the hydrologic properties of this fault-dominated geothermal resource. Four complementary analytical techniques were employed, their individual application depending upon availability and quality of data and validity of scientific assumptions. In some instances, redundancy in

64

Exploration model for possible geothermal reservoir, Coso Hot Springs KGRA,  

Open Energy Info (EERE)

model for possible geothermal reservoir, Coso Hot Springs KGRA, model for possible geothermal reservoir, Coso Hot Springs KGRA, Inyo Co. , California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Exploration model for possible geothermal reservoir, Coso Hot Springs KGRA, Inyo Co. , California Details Activities (1) Areas (1) Regions (0) 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 Jarzabek (1977). Gravity data collected by the USGS (Isherwood and Plouff, 1978) was plotted and compared with the geology of the area, which is well known. An east-west trending Bouguer gravity profile was constructed through the center of the heat flow anomaly described by Combs (1976). The best fit model for the observed gravity at

65

ANNOTATED RESEARCH BIBLIOGRAPHY FOR GEOTHERMAL RESERVOIR ENGINEERING  

E-Print Network [OSTI]

F i r s t Geopressured Geothermal Energy Conference. Austin,I 2nd Geopressured Geothermal Energy Conference. UniversityExperiment t o Extract Geothermal Energy From Hot Dry Rock."

Sudo!, G.A

2012-01-01T23:59:59.000Z

66

True-Temperature Determination Of Geothermal Reservoirs | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » True-Temperature Determination Of Geothermal Reservoirs Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: True-Temperature Determination Of Geothermal Reservoirs Details Activities (0) Areas (0) Regions (0) Abstract: Parameters governing the resistivity in geothermal areas are analyzed. A method for the calculation of the true temperature of geothermal reservoirs is explained, and the effectiveness of the method is evidenced. Author(s): Jin Doo Jung Published: Geoexploration, 1977 Document Number: Unavailable DOI: 10.1016/0016-7142(77)90002-3 Source: View Original Journal Article

67

Characterization Of Fracture Patterns In The Geysers Geothermal Reservoir  

Open Energy Info (EERE)

Patterns In The Geysers Geothermal Reservoir Patterns In The Geysers Geothermal Reservoir By Shear-Wave Splitting Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Characterization Of Fracture Patterns In The Geysers Geothermal Reservoir By Shear-Wave Splitting Details Activities (1) Areas (1) Regions (0) Abstract: The authors have analyzed the splitting of shear waves from microearthquakes recorded by a 16-station three-component seismic network at the Northwest Geysers geothermal field, Geysers, California, to determine the preferred orientation of subsurface fractures and cracks. Average polarization crack directions with standard deviation were computed for each station. Also, graphical fracture characterizations in the form of equal-area projections and rose diagrams were created to depict the

68

3-D Seismic Methods For Geothermal Reservoir Exploration And  

Open Energy Info (EERE)

Methods For Geothermal Reservoir Exploration And Methods For Geothermal Reservoir Exploration And Assessment-Summary Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: 3-D Seismic Methods For Geothermal Reservoir Exploration And Assessment-Summary Details Activities (5) Areas (1) Regions (0) Abstract: A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally

69

Application of thermal depletion model to geothermal reservoirs with  

Open Energy Info (EERE)

thermal depletion model to geothermal reservoirs with thermal depletion model to geothermal reservoirs with fracture and pore permeability Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Application of thermal depletion model to geothermal reservoirs with fracture and pore permeability Details Activities (2) Areas (2) Regions (0) Abstract: If reinjection and production wells intersect connected fractures, it is expected that reinjected fluid would cool the production well much sooner than would be predicted from calculations of flow in a porous medium. A method for calculating how much sooner that cooling will occur was developed. Basic assumptions of the method are presented, and possible application to the Salton Sea Geothermal Field, the Raft River System, and to reinjection of supersaturated fluids is discussed.

70

Update on the Raft River Geothermal Reservoir | Open Energy Information  

Open Energy Info (EERE)

on the Raft River Geothermal Reservoir on the Raft River Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Update on the Raft River Geothermal Reservoir Details Activities (1) Areas (1) Regions (0) Abstract: Since the last conference, a fourth well has been drilled to an intermediate depth and tested as a production well, with plans to use this well in the long term for injection of fluids into the strata above the production strata. The third, triple legged well has been fully pump tested, and the recovery of the second well from an injection well back to production status has revealed very interesting data on the reservoir conditions around that well. Both interference testing and geochemistry analysis shows that the third well is producing from a different aquifer

71

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...

72

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.

73

Integrated seismic studies at the Rye Patch geothermal reservoir...  

Open Energy Info (EERE)

studies at the Rye Patch geothermal reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Integrated seismic studies at the Rye Patch...

74

Geothermal Reservoir Assessment Case Study, Northern Basin and Range  

Open Energy Info (EERE)

Reservoir Assessment Case Study, Northern Basin and Range Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Abstract N/A Authors Elaine J. Bell, Lawrence T. Larson and Russell W. Juncal Published U.S. Department of Energy, 1980 Report Number GLO2386 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province, Northern Dixie Valley, Nevada Citation Elaine J. Bell,Lawrence T. Larson,Russell W. Juncal. 1980. Geothermal Reservoir Assessment Case Study, Northern Basin and Range Province,

75

Geothermal field case studies that document the usefulness of models in predicting reservoir and well behavior  

SciTech Connect (OSTI)

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant art of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Falls in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources. 14 refs., 6 figs.

Lippmann, M.J.

1989-03-01T23:59:59.000Z

76

Geothermal Field Case Studies that Document the Usefulness of Models in Predicting Reservoir and Well Behavior  

SciTech Connect (OSTI)

The geothermal industry has shown significant interest in case histories that document field production histories and demonstrate the techniques which work best in the characterization and evaluation of geothermal systems. In response to this interest, LBL has devoted a significant part of its geothermal program to the compilation and analysis of data from US and foreign fields (e.g., East Mesa, The Geysers, Susanville, and Long Valley in California; Klamath Fall in Oregon; Valles Caldera, New Mexico; Cerro Prieto and Los Azufres in Mexico; Krafla and Nesjavellir in Iceland; Larderello in Italy; Olkaria in Kenya). In each of these case studies we have been able to test and validate in the field, or against field data, the methodology and instrumentation developed under the Reservoir Technology Task of the DOE Geothermal Program, and to add to the understanding of the characteristics and processes occurring in geothermal reservoirs. Case study results of the producing Cerro Prieto and Olkaria geothermal fields are discussed in this paper. These examples were chosen because they illustrate the value of conceptual and numerical models to predict changes in reservoir conditions, reservoir processes, and well performance that accompany field exploitation, as well as to reduce the costs associated with the development and exploitation of geothermal resources.

Lippmann, Marcelo J.

1989-03-21T23:59:59.000Z

77

State of Seismic Methods For Geothermal Reservoir Exploration and Assessment  

Office of Scientific and Technical Information (OSTI)

3-D Seismic Methods For Geothermal Reservoir Exploration 3-D Seismic Methods For Geothermal Reservoir Exploration and Assessment - Summary E.L Majer Lawrence Berkeley National Laboratory Introduction A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the

78

Statistical study of seismicity associated with geothermal reservoirs in  

Open Energy Info (EERE)

study of seismicity associated with geothermal reservoirs in study of seismicity associated with geothermal reservoirs in California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Statistical study of seismicity associated with geothermal reservoirs in California Details Activities (5) Areas (5) Regions (0) Abstract: Statistical methods are outlined to separate spatially, temporally, and magnitude-dependent portions of both the random and non-random components of the seismicity. The methodology employed compares the seismicity distributions with a generalized Poisson distribution. Temporally related events are identified by the distribution of the interoccurrence times. The regions studied to date include the Imperial Valley, Coso, The Geysers, Lassen, and the San Jacinto fault. The spatial characteristics of the random and clustered components of the seismicity

79

DOE-project on geothermal reservoir engineering computer code comparison and validation: evaluation of results for Problem 6  

SciTech Connect (OSTI)

Three of the four simulators used in computing a difficult three-dimensional problem show excellent quantitative agreement. This demonstrates that numerical simulators are capable of producing accurate results for field-wide reservoir depletion problems, involving phase transitions, gravitationally induced steam/water counterflow, and recharge.

Pruess, K.

1980-12-01T23:59:59.000Z

80

A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration  

Open Energy Info (EERE)

GEOTHERMAL ENERGYGeothermal Home GEOTHERMAL ENERGYGeothermal Home Journal Article: A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration Details Activities (0) Areas (0) Regions (0) Abstract: The size and low resistivity of the clay cap associated with a geothermal system create a target well suited for electromagnetic (EM) methods and also make electrical detection of the underlying geothermal reservoir a challenge. Using 3-D numerical models, we evaluate four EM techniques for use in geothermal exploration: magnetotellurics (MT), controlled-source audio magnetotellurics (CSAMT), long-offset time-domain EM (LOTEM), and short-offset time-domain EM (TEM). Our results show that all of these techniques can delineate the clay cap, but none can be said to unequivocally detect the reservoir. We do find, however, that the EM

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

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

82

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

83

Analysis of Geothermal Reservoir Stimulation Using Geomechanics...  

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

into estimates of seismic hazard relationships between induced seismicity, changes in fracture density, fluid injectionwithdrawal, background stress, and geothermal production....

84

ANALYSIS OF PRODUCTION DECLINE IN GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

geothermal, and hydrological litera- ture. The data sets examined include Wairakei, New Zealand - 141 wells Cerro Prieto, Mexico -

Zais, E.J.; Bodvarsson, G.

2008-01-01T23:59:59.000Z

85

Hydraulic fracture stimulation treatment of Well Baca 23. Geothermal Reservoir Well-Stimulation Program  

SciTech Connect (OSTI)

Well Stimulation Experiment No. 5 of the Geothermal Reservoir Well Stimulation Program (GRWSP) was performed on March 22, 1981 in Baca 23, located in Union's Redondo Creek Project Area in Sandoval County, New Mexico. The treatment selected was a large hydraulic fracture job designed specifically for, and utilizing frac materials chosen for, the high temperature geothermal environment. The well selection, fracture treatment, experiment evaluation, and summary of the job costs are presented herein.

Not Available

1981-06-01T23:59:59.000Z

86

Comprehensive Evaluation of the Geothermal Resource Potential...  

Open Energy Info (EERE)

American Recovery and Reinvestment Act of 2009. State Nevada Objectives Characterize the geothermal reservoir, the Astor Pass Site, using novel technologies and integrating this...

87

Precise Gravimetry and Geothermal Reservoir Management | Open Energy  

Open Energy Info (EERE)

Precise Gravimetry and Geothermal Reservoir Management Precise Gravimetry and Geothermal Reservoir Management Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Precise Gravimetry and Geothermal Reservoir Management Abstract Modern portable gravimeters can routinely achieve a5 ugal uncertainty with careful measurementprocedures involving multiple station occupations inthe same day, and stacking of readings over at least15 minutes during each occupation. Although furtherimprovements in gravimeter accuracy are feasible,other practical factors relating to repeat surveys ofgeothermal fields make such improvements oflimited value. The two most important factors arebenchmark elevation variations (3 ugal/cm) andgroundwater level fluctuations (5-10 ugal/m). Dualfrequency GPS receivers can give elevations

88

The Ahuachapan geothermal field, El Salvador: Reservoir analysis  

SciTech Connect (OSTI)

The Earth Sciences Division of Lawrence Berkeley Laboratory (LBL) is conducting a reservoir evaluation study of the Ahuachapan geothermal field in El Salvador. This work is being performed in cooperation with the Comision Ejecutiva Hidroelectrica del Rio Lempa (CEL) and the Los Alamos National Laboratory (LANL). This report describes the work done during the first year of the study (FY 1988--89), and includes the (1) development of geological and conceptual models of the field, (2) evaluation of the initial thermodynamic and chemical conditions and their changes during exploitation, (3) evaluation of interference test data and the observed reservoir pressure decline, and (4) the development of a natural state model for the field. The geological model of the field indicates that there are seven (7) major and five (5) minor faults that control the fluid movement in the Ahuachapan area. Some of the faults act as a barrier to flow as indicated by large temperature declines towards the north and west. Other faults act as preferential pathways to flow. The Ahuachapan Andesites provide good horizontal permeability to flow and provide most of the fluids to the wells. The underlying Older Agglomerates also contribute to well production, but considerably less than the Andesites. 84 refs.

Aunzo, Z.; Bodvarsson, G.S.; Laky, C.; Lippmann, M.J.; Steingrimsson, B.; Truesdell, A.H.; Witherspoon, P.A. (Lawrence Berkeley Lab., CA (USA); Icelandic National Energy Authority, Reykjavik (Iceland); Geological Survey, Menlo Park, CA (USA); Lawrence Berkeley Lab., CA (USA))

1989-08-01T23:59:59.000Z

89

CALCULATION AND USE OF STEAM/WATER RELATIVE PERMEABILITIES IN GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

c c c i i c I CALCULATION AND USE OF STEAM/WATER RELATIVE PERMEABILITIES IN GEOTHERMAL RESERVOIRS to calculate the steam/water relative permeabilities in geothermal reservoirs was developed and applied curves as a basis for analysis of future well tests for geothermal reservoirs. c ii #12;TABLE OF CONTENTS

Stanford University

90

Geothermal reservoir temperatures estimated from the oxygen isotope  

Open Energy Info (EERE)

reservoir temperatures estimated from the oxygen isotope reservoir temperatures estimated from the oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Geothermal reservoir temperatures estimated from the oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes Details Activities (3) Areas (3) Regions (0) Abstract: The oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes have been tested as a geothermometer in three areas of the western United States. Limited analyses of spring and borehole fluids and existing experimental rate studies suggest that dissolved sulfate and water are probably in isotopic equilibrium in all reservoirs of significant size with temperatures above

91

Geothermal reservoir engineering computer code comparison and validation  

SciTech Connect (OSTI)

The results of computer simulations for a set of six problems typical of geothermal reservoir engineering applications are presented. These results are compared to those obtained by others using similar geothermal reservoir simulators on the same problem set. The purpose of this code comparison is to check the performance of participating codes on a set of typical reservoir problems. The results provide a measure of the validity and appropriateness of the simulators in terms of major assumptions, governing equations, numerical accuracy, and computational procedures. A description is given of the general reservoir simulator - its major assumptions, mathematical formulation, and numerical techniques. Following the description of the model is the presentation of the results for the six problems. Included with the results for each problem is a discussion of the results; problem descriptions and result tabulations are included in appendixes. Each of the six problems specified in the contract was successfully simulated. (MHR)

Faust, C.R.; Mercer, J.W.; Miller, W.J.

1980-11-12T23:59:59.000Z

92

Numerical Code Comparison Project - A Necessary Step Towards Confidence in Geothermal Reservoir Simulators  

SciTech Connect (OSTI)

A necessary first step in resolving differences and in evaluating the usefulness of numerical simulators for geothermal reservoir analysis is the comparison of simulator results for a set of well-specified problems involving processes applicable in reservoir analysis. Under the direction of DOE'S Geothermal Reservoir Engineering Management Program (GREMP), a set of six test problems has been developed in an attempt to meet this need. The problem set covers a range of reservoir situations including single- and two-phase flow under 1, 2, and 3 dimensional conditions. Each problem has been test run to insure that the parameter specifications will yield workable solutions, and in several cases analytical solutions are available for comparison. Brief descriptions of the problems are given in each problem, the desired grid and time-step sizes were specified to minimize differences in results due to numerical discretization.

Sorey, Michael L.

1980-12-16T23:59:59.000Z

93

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:...

94

West Valley Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Valley Reservoir Geothermal Area Valley Reservoir Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: West Valley Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.19166667,"lon":-120.385,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

95

Geysers Hi-T Reservoir Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Geysers Hi-T Reservoir Geothermal Area Geysers Hi-T Reservoir Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Geysers Hi-T Reservoir Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.8,"lon":-122.8,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

96

Geothermal reservoir simulation to enhance confidence in predictions for nuclear waste disposal  

SciTech Connect (OSTI)

Numerical simulation of geothermal reservoirs is useful and necessary in understanding and evaluating reservoir structure and behavior, designing field development, and predicting performance. Models vary in complexity depending on processes considered, heterogeneity, data availability, and study objectives. They are evaluated using computer codes written and tested to study single and multiphase flow and transport under nonisothermal conditions. Many flow and heat transfer processes modeled in geothermal reservoirs are expected to occur in anthropogenic thermal (AT) systems created by geologic disposal of heat-generating nuclear waste. We examine and compare geothermal systems and the AT system expected at Yucca Mountain, Nevada, and their modeling. Time frames and spatial scales are similar in both systems, but increased precision is necessary for modeling the AT system, because flow through specific repository locations will affect long-term ability radionuclide retention. Geothermal modeling experience has generated a methodology, used in the AT modeling for Yucca Mountain, yielding good predictive results if sufficient reliable data are available and an experienced modeler is involved. Codes used in geothermal and AT modeling have been tested extensively and successfully on a variety of analytical and laboratory problems.

Kneafsey, Timothy J.; Pruess, Karsten; O'Sullivan, Michael J.; Bodvarsson, Gudmundur S.

2002-06-15T23:59:59.000Z

97

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...

98

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

99

THE ROLE OF CAPILLARY FORCES IN THE NATURAL STATE OF FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

THE ROLE OF CAPILLARY FORCES IN THE NATURAL STATE OF FRACTURED GEOTHERMAL RESERVOIRS A REPORT of experiments into the natural state of geothermal reservoirs have been conducted using porous medium models, even though geothermal systems are usually highly fractured. It is unclear whether a porous medium

Stanford University

100

Geothermal Electricity Technology Evaluation Model (GETEM) Development...  

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

Electricity Technology Evaluation Model (GETEM) Development Geothermal Electricity Technology Evaluation Model (GETEM) Development Project objective: Provide a tool for estimating...

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Well-test data from geothermal reservoirs  

SciTech Connect (OSTI)

Extensive well testing in geothermal resources has been carried out throughout the western United States and in northern Mexico since 1975. Each resource tested and each well test conducted by LBL during the eight-year period are covered in brief. The information, collected from published reports and memoranda, includes test particulars, special instrumentation, data interpretation when available, and plots of actual data. Brief geologic and hydrologic descriptions of the geothermal resources are also presented. The format is such that well test descriptions are grouped, in the order performed, into major sections according to resource, each section containing a short resource description followed by individual test details. Additional information regarding instrumentation is provided. Source documentation is provided throughout to facilitate access to further information and raw data.

Bodvarsson, M.G.; Benson, S.M.

1982-09-01T23:59:59.000Z

102

Hot Dry Rock Geothermal Reservoir Testing- 1978 To 1980 | Open Energy  

Open Energy Info (EERE)

Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hot Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Details Activities (3) Areas (1) Regions (0) Abstract: The Phase I Hot Dry Rock Geothermal Energy reservoirs at the Fenton Hill field site grew continuously during Run Segments 2 through 5 (January 1978 to December 1980). Reservoir growth was caused not only by pressurization and hydraulic fracturing, but also by heat-extraction and thermal-contraction effects. Reservoir heat-transfer area grew from 8000 to 50,000 m2 and reservoir fracture volume grew from 11 to 266 m3. Despite this reservoir growth, the water loss rate increased only 30%, under similar pressure environments. For comparable temperature and pressure

103

Simple numerical simulation for liquid dominated geothermal reservoir  

SciTech Connect (OSTI)

A numerical model for geothermal reservoir has been developed. The model used is based on an idealized, two-dimensional case, where the porous medium is isotropic, nonhomogeneous, filled with saturated liquid. The fluids are assumed to have constant and temperature dependent viscosity. A Boussinesq approximation and Darcy`s law are used. The model will utilize a simple hypothetical geothermal system, i.e. graben within horsts structure, with three layers of different permeabilities. Vorticity plays an importance roles in the natural convection process, and its generation and development do not depend only on the buoyancy, but also on the magnitude and direction relation between the flow velocity and the local gradient of permeability to viscosity ratio. This model is currently used together with a physical, scaled-down reservoir model to help conceptual modeling.

Wintolo, D.; Sutrisno; Sudjamiko [Gadjah Mada Univ., Yogyakarta (Indonesia)] [and others

1996-12-31T23:59:59.000Z

104

Simple numerical simulation for liquid dominated geothermal reservoir  

SciTech Connect (OSTI)

A numerical model for geothermal reservoir has been developed. The model used is based on an idealized, two-dimensional case, where the porous medium is isotropic, nonhomogeneous, filled with saturated liquid. The fluids are assumed to have constant and temperature dependent viscosity. A Boussinesq approximation and Darcys law are used. The model will utilize a simple hypothetical geothermal system, i.e. graben within horsts structure, with three layers of different permeabilities. Vorticity plays an importance roles in the natural convection process, and its generation and development do not depend only on the buoyancy, but also on the magnitude and direction relation between the flow velocity and the local gradient of permeability to viscosity ratio. This model is currently used together with a physical, scaled-down reservoir model to help conceptual modeling.

Wintolo, Djoko; Sutrisno; Sudjatmiko; Sudarman, S.

1996-01-24T23:59:59.000Z

105

Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir |  

Open Energy Info (EERE)

Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Three-Dimensional Seismic Imaging Of The Rye Patch Geothermal Reservoir Details Activities (3) Areas (1) Regions (0) Abstract: A 3-D surface seismic survey was conducted to explore the structure of the Rye Patch geothermal reservoir (Nevada), to determine if modern seismic techniques could be successfully applied in geothermal environments. Furthermore, it was intended to map the structural features which may control geothermal production in the reservoir. The seismic survey covered an area of 3.03 square miles and was designed with 12 north-south receiver lines and 25 east-west source lines. The receiver group interval was 100 feet and the receiver line spacing was 800 feet. The

106

Imaging the Soultz Enhanced Geothermal Reservoir using double-difference tomography and microseismic data  

E-Print Network [OSTI]

We applied the double-difference tomography method to image the P and S-wave velocity structure of the European Hot Dry Rock geothermal reservoir (also known as the Soultz Enhanced Geothermal System) at Soultz-sous-Forets, ...

Pieros Concha, Diego Alvaro

2010-01-01T23:59:59.000Z

107

GEOTHERMAL RESOURCE AND RESERVOIR INVESTIGATIONS OF U.S. BUREAU OF RECLAMATION LEASEHOLDS AT EAST MESA, IMPERIAL VALLEY, CALIFORNIA  

E-Print Network [OSTI]

of geothermal resources in the Imperial Valley ofO N GEOTHERMAL RESOURCE INVESTIGATIONS IMPERIAL VALLEY. C Ageothermal reservoir underlying the East Mesa area, Imperial Valley,

2009-01-01T23:59:59.000Z

108

Geothermal resource evaluation of the Yuma area  

SciTech Connect (OSTI)

This report presents an evaluation of the geothermal potential of the Yuma, Arizona area. A description of the study area and the Salton Trough area is followed by a geothermal analysis of the area, a discussion of the economics of geothermal exploration and exploitation, and recommendations for further testing. It was concluded economic considerations do not favor geothermal development at this time. (ACR)

Poluianov, E.W.; Mancini, F.P.

1985-11-29T23:59:59.000Z

109

Reservoir-Stimulation Optimization with Operational Monitoring for Creation of Enhanced Geothermal Systems  

Broader source: Energy.gov [DOE]

Reservoir-Stimulation Optimization with Operational Monitoring for Creation of Enhanced Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

110

Calculation of geothermal reservoir temperatures and steam fractions from gas compositions  

SciTech Connect (OSTI)

This paper deals with the chemical equilibria and physical characteristics of the fluid in the reservoir (temperature, steam fraction with respect to total water, gas/steam ratio, redox conditions), which seem to be responsible for the observed concentrations of some reactive species found in the geothermal fluids (CO2, H2, H2S and CH4). Gas geochemistry is of particular interest in vapor-dominated fields where the fluid discharged consists of almost pure steam containing a limited number of volatile chemical species. Considering several geothermal systems, a good correlation has been obtained among the temperatures calculated from the gas geothermometers and the temperatures measured in the reservoir of evaluated by other physical or chemical methods. 24 refs., 5 figs.

D'Amore, F.; Truesdell, A.H.

1985-01-01T23:59:59.000Z

111

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

E-Print Network [OSTI]

DOE), Division of Geothermal Energy (DGE) proposed thatof Energy, Division of Geothermal Energy, through Lawrence

Howard, J. H.

2012-01-01T23:59:59.000Z

112

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

E-Print Network [OSTI]

from low permeability and/or porosity geothermal resources. Existing geochemical reactive transport reservoir characterization and present example analyses of the pore systems of representative rocks fromPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University

Stanford University

113

EXPERIMENTAL VERIFICATION OF THE LOAD-FOLLOWING POTENTIAL OF A HOT DRY ROCK GEOTHERMAL RESERVOIR  

E-Print Network [OSTI]

was about 2 minutes. INTRODUCTION The Hot Dry Rock (HDR) geothermal reservoir at Fenton Hill, New MexicoEXPERIMENTAL VERIFICATION OF THE LOAD-FOLLOWING POTENTIAL OF A HOT DRY ROCK GEOTHERMAL RESERVOIR Mexico 87545 ABSTRACT A recent 6-day flow experiment conducted at the Los Alamos National Laboratory

114

Detailed Joint Structure in a Geothermal Reservoir from Studies of Induced Microearthquake Clusters  

E-Print Network [OSTI]

microearthquake data collected from a geothermal reservoir at Fenton Hill, New Mexico, provide an opportunityDetailed Joint Structure in a Geothermal Reservoir from Studies of Induced Microearthquake Clusters Alamos National Laboratory, Los Alamos, New Mexico LAUR 94-3846 #12;2 Abstract Microearthquake clusters

115

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

E-Print Network [OSTI]

Induced Microearthquake Patterns in Hydrocarbon and Geothermal Reservoirs: A Review W. Scott or production of fluids can induce microseismic events in hydrocarbon and geothermal reservoirs. By deploying sensors downhole, data sets have been collected that consist of a few hundred to well over 10,000 induced

116

Base Technologies and Tools for Supercritical Reservoirs Geothermal Lab  

Open Energy Info (EERE)

Technologies and Tools for Supercritical Reservoirs Geothermal Lab Technologies and Tools for Supercritical Reservoirs Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Base Technologies and Tools for Supercritical Reservoirs Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 High-Temperature Downhole Tools Project Description Development of downhole tools capable of reliable operation in supercritical environments is a significant challenge with a number of technical and operational hurdles related to both the hardware and electronics design. Hardware designs require the elimination of all elastomer seals and the use of advanced materials. Electronics must be hardened to the extent practicable since no electronics system can survive supercritical temperatures. To develop systems capable of logging in these environments will require a number of developments. More robust packaging of electronics is needed. Sandia will design and develop innovated, highly integrated, high-temperature (HT) data loggers. These data loggers will be designed and developed using silicon-on-insulator/silicon carbide (SOI/SiC) technologies integrated into a MultiChip Module (MCM); greatly increasing the reliability of the overall system (eliminating hundreds of board-level innerconnects) and decreasing the size of the electronics package. Tools employing these electronics will be capable of operating continuously at temperatures up to 240 °C and by using advanced Dewar flasks, will operate in a supercritical reservoir with temperatures over 450 °C and pressures above 70 MPa. Dewar flasks are needed to protect the electronic components, but those currently available are only reliable in temperature regimes in the range of 350 °C; promising advances in materials will be investigated to improve Dewar technologies. HT wireline currently used for logging operations is compromised at temperatures above 300 °C; along with exploring the development of a HT wireline for logging purposes, alternative approaches that employ HT batteries (e.g., those awarded a recent R&D 100) will also be investigated, and if available will enable deployment using slickline, which is not subject to the same temperature limitations as wireline. To demonstrate the capability provided by these improvements, tools will be developed and fielded. The developed base technologies and working tool designs will be available to industry throughout the project period. The developed techniques and subsystems will help to further the advancement of HT tools needed in the geothermal industry.

117

Deep geothermal reservoirs evolution: from a modeling perspective BRGM, 3 Avenue Claude Guillemin, BP 36009 -45060 Orlans Cedex 2, France  

E-Print Network [OSTI]

Deep geothermal reservoirs evolution: from a modeling perspective S. Lopez1 1 BRGM, 3 Avenue Claude deep geothermal reservoirs evolution and management based on examples ranging from direct use of geothermal heat to geothermal electricity production. We will try to focus on French experiences

Paris-Sud XI, Université de

118

Using Parallel MCMC Sampling to Calibrate a Computer Model of a Geothermal Reservoir  

E-Print Network [OSTI]

Using Parallel MCMC Sampling to Calibrate a Computer Model of a Geothermal Reservoir by T. Cui, C. 686 ISSN 1178-360 #12;Using Parallel MCMC Sampling to Calibrate a Computer Model of a Geothermal of a geothermal field to achieve model `calibration' from measured well-test data. We explore three scenarios

Fox, Colin

119

Potential Impact of Reservoir Engineering R&D on Geothermal Energy Costs  

SciTech Connect (OSTI)

A tutorial program for use on personal computers is being developed to evaluate the sensitivity of geothermal energy costs to potential technological improvements. Reservoir engineering R&D will reduce risk to the funding organization and in turn reduce the risk premium paid on a loan. The use of a risk premium was described as an investment bankers option at the November 1986 Future of Geothermal Energy Conference in San Diego, California. In the sensitivity analysis, we propose to calculate an energy cost: (1) at the predicted production parameters of temperature, drawdown rate, etc., and (2) at the most likely worse case values. The differential higher cost of the worse case over the predicted case is the risk premium. Thus R&D that improves reservoir definition will reduce the worse-case-minus-predicted-case difference and the financial risk premium. Improvements in reservoir engineering can then be quantified in terms of reduced energy costs. This paper will discuss the proposed approach to obtain critique of the procedure and provide the best logic for use in evaluating the potential impact of reservoir engineering R&D.

Traeger, Richard K.; Entingh, Daniel

1987-01-20T23:59:59.000Z

120

Hydraulic fracturing in a sedimentary geothermal reservoir: Results and implications  

Science Journals Connector (OSTI)

Field experiments in a geothermal research well were conducted to enhance the inflow performance of a clastic sedimentary reservoir section. Due to depths exceeding 4050m, bottom hole temperatures exceeding 140C, and open hole section (dual zone), technically demanding and somewhat unprecedented conditions had to be managed. The fracturing operations were successful. Fractures were created in two isolated borehole intervals and the inflow behaviour of the reservoir was decisively enhanced. The effective pressures applied for fracture initiation and propagation were only slightly above in situ pore pressures. Nevertheless, the stimulation ratio predicted by fracture performance modelling could not be achieved. Multiple reasons could be identified that account for the mismatch. An insufficient fracture tie-back, as well as chemical and mechanical processes during closure, led to reduced fracture conductivities and therefore diminished productivity. The insights gained are the basis for further fracture design concepts at the given and geologic comparable sites.

B. Legarth; E. Huenges; G. Zimmermann

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Two-dimensional simulation of the Raft River geothermal reservoir and  

Open Energy Info (EERE)

dimensional simulation of the Raft River geothermal reservoir and dimensional simulation of the Raft River geothermal reservoir and wells. (SINDA-3G program) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Two-dimensional simulation of the Raft River geothermal reservoir and wells. (SINDA-3G program) Details Activities (1) Areas (1) Regions (0) Abstract: Computer models describing both the transient reservoir pressure behavior and the time dependent temperature response of the wells at the Raft River, Idaho, Geothermal Resource were developed. A horizontal, two-dimensional, finite-difference model for calculating pressure effects was constructed to simulate reservoir performance. Vertical, two-dimensional, finite-difference, axisymmetric models for each of the three existing wells at Raft River were also constructed to describe the

122

GEOTHERMAL RESERVOIR ENGINEERING MANGEMENT PROGRAM PLAN (GREMP PLAN)  

E-Print Network [OSTI]

2 Mission of Division of Geothermal Energy . . . . .of the Division of Geothermal Energy and these directoratesof Energy, Division of Geothermal Energy effort is the

Bloomster, C.H.

2010-01-01T23:59:59.000Z

123

GEOTHERMAL RESERVOIR ENGINEERING MANGEMENT PROGRAM PLAN (GREMP PLAN)  

E-Print Network [OSTI]

2 Mission of Division of Geothermal Energy . . . . .of Energy, Division of Geothermal Energy effort is theMission of Division of Geothermal Energy The mission of the

Bloomster, C.H.

2010-01-01T23:59:59.000Z

124

INJECTION AND THERMAL BREAKTHROUGH IN FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

Applications & Operations, Geothermal Energy Division of theP. , and Otte, C. , Geothermal energy: Stanford, California,Applications & Operations, Geothermal Energy Division of the

Bodvarsson, Gudmundur S.

2012-01-01T23:59:59.000Z

125

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

E-Print Network [OSTI]

ment methods for geothermal well system param- eters,on calcite-fouled geothermal wells (Michaels, 1979). An

Howard, J. H.

2012-01-01T23:59:59.000Z

126

Coso: example of a complex geothermal reservoir. Final report, 1984-1985 |  

Open Energy Info (EERE)

Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Details Activities (1) Areas (1) Regions (0) Abstract: The Coso geothermal system has been widely studied and reported by scientists through the past several years, but there is still a considerable divergence of opinion regarding the structural setting, origin, and internal structure of this energy resource. Because of accelerating exploration and development drilling that is taking place, there is a need for a reservoir model that is consistent with the limited geologic facts available regarding the area. Author(s): Austin, C.F.; Durbin, W.F.

127

GEOTHERMAL RESOURCE AND RESERVOIR INVESTIGATIONS OF U.S. BUREAU OF RECLAMATION LEASEHOLDS AT EAST MESA, IMPERIAL VALLEY, CALIFORNIA  

E-Print Network [OSTI]

on the Republic geothermal wells, East Mesa, California.evalu- ation of five geothermal wells, Proc. second UNhydrologic continuity Geothermal Well Inferred barrier

2009-01-01T23:59:59.000Z

128

Comprehensive Evaluation of the Geothermal Resource Potential within the Pyramid Lake Paiute Reservation  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objective: to characterize the geothermal reservoir using novel technologies and integrating this information into a 3D geologic and reservoir model numerical model to determine the efficacy of future geothermal production.

129

SUMMARY OF RESERVOIR ENGINEERING DATA: WAIRAKEI GEOTHERMAL FIELD, NEW ZEALAND  

E-Print Network [OSTI]

mental Effects of Geothermal Power Production Phase IIA,"its development as a geothermal power system, Wairakei andI. (Compiler), Geothermal Steam for Power i n N e w Zealand,

Pritchett, J.W.

2012-01-01T23:59:59.000Z

130

SUMMARY OF RESERVOIR ENGINEERING DATA: WAIRAKEI GEOTHERMAL FIELD, NEW ZEALAND  

E-Print Network [OSTI]

mental Effects of Geothermal Power Production Phase IIA,"its development as a geothermal power system, Wairakei andI. (Compiler), Geothermal Steam for Power i n N e w Zealand,

Pritchett, J.W.

2010-01-01T23:59:59.000Z

131

GEOTHERMAL RESERVOIR ENGINEERING MANGEMENT PROGRAM PLAN (GREMP PLAN)  

E-Print Network [OSTI]

2 Mission of Division of Geothermal Energy . . . . .Nations Symposium on Geothermal Energy, Vol. 1 , p. 487-494.Nations Symposium on Geothermal Energy, Vol. 1 p . l i i i -

Bloomster, C.H.

2010-01-01T23:59:59.000Z

132

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

E-Print Network [OSTI]

geothermal resource in the US Gulf of Mexico region. In particular, geopressured sandstones near salt domesPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University INJECTION IN STIMULATION OF GEOPRESSURED GEOTHERMAL RESERVOIRS Tatyana Plaksina,1 Christopher White,1

Stanford University

133

U.S. Department of Energy Geothermal Electricity Technology Evaluation...  

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

Department of Energy Geothermal Electricity Technology Evaluation Model (GETEM) Webinar U.S. Department of Energy Geothermal Electricity Technology Evaluation Model (GETEM) Webinar...

134

U.S. DOE Geothermal Electricity Technology Evaluation Model ...  

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

U.S. DOE Geothermal Electricity Technology Evaluation Model (GETEM) Webinar Presentation U.S. DOE Geothermal Electricity Technology Evaluation Model (GETEM) Webinar Presentation...

135

Interest in using microearthquakes for characterizing petro-leum and geothermal reservoirs and the region surround-  

E-Print Network [OSTI]

Interest in using microearthquakes for characterizing petro- leum and geothermal reservoirs can be obtained from well logs, but they only provide direct information about conditions near the well. Microseismic (MS) monitoring techniques can be pri- mary methods for obtaining detailed

136

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

E-Print Network [OSTI]

Energy Geothermal Wayang Windu Ltd., 2. Geothermal Laboratory ITB, Bandung. mulyadiPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University-DOMINATED TWO-PHASE ZONE OF THE WAYANG WINDU GEOTHERMAL FIELD, JAVA, INDONESIA Mulyadi1 and Ali Ashat2 1. Star

Stanford University

137

PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009  

E-Print Network [OSTI]

an Enhanced Geothermal System (EGS) power generation project in Desert Peak (Nevada) geothermal field. As partPROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University GEOTHERMAL SYSTEM K.M. Kovac1 , Susan J. Lutz2 , Peter S. Drakos3 , Joel Byersdorfer4 , and Ann Robertson

Stanford University

138

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

a mismatch between rough surfaces that will enhance reservoir porosity and permeability. In the early daysPROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University the performance of EGS reservoirs. Geothermal injection wells are often drilled into formations containing

Stanford University

139

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

not to the permeability but to the porosity of the medium, the contribution of the drag current through the matrix regionPROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University TO GEOTHERMAL RESERVOIR ENGINEERING: CHARACTERIZATION OF FRACTURED RESERVOIRS Tsuneo Ishido1 , Yuji Nishi2

Stanford University

140

3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary  

SciTech Connect (OSTI)

A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the challenge has been to separate the ''background'' natural complexity and heterogeneity of the matrix from the fracture/fault heterogeneity controlling the fluid flow. Ideally one not only wants to find the fractures, but the fractures that are controlling the flow of the fluids. Evaluated in this work is current state-of-the-art surface (seismic reflection) and borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal reservoir characteristics. The focus is on active methods; the assumption being that accuracy is needed for successful well siting. Passive methods are useful for exploration and detailed monitoring for in-fill drilling, but in general the passive methods lack the precision and accuracy for well siting in new or step out areas. In addition, MEQ activity is usually associated with production, after the field has been taken to a mature state, thus in most cases it is assumed that there is not enough MEQ activity in unproduced areas to accurately find the permeable pathways. The premise of this review is that there may new developments in theory and modeling, as well as in data acquisition and processing, which could make it possible to image the subsurface in much more detail than 15 years ago. New understanding of the effect of fractures on seismic wave propagation are now being applied to image fractures in gas and oil environments. It now may be appropriate to apply these methods, with modifications, to geothermal applications. It is assumed that to implement the appropriate methods an industry coupled program tightly linked to actual field cases, iterating between development and application will be pursued. The goal of this work is to evaluate the most promising methods and approaches that may be used for improved geothermal exploration and reservoir assessment. It is not a comprehensive review of all seismic methods used to date in geothermal environments. This work was motivated by a need to assess current and developing seismic technology that if applied in geothermal cases may greatly improve the chances for locating new geothermal resources and/or improve assessment of current ones.

Majer, E.L.

2003-07-14T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Geothermal Resource-Reservoir Investigations Based On Heat Flow And Thermal  

Open Energy Info (EERE)

Resource-Reservoir Investigations Based On Heat Flow And Thermal Resource-Reservoir Investigations Based On Heat Flow And Thermal Gradient Data For The United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal Resource-Reservoir Investigations Based On Heat Flow And Thermal Gradient Data For The United States Details Activities (2) Areas (2) Regions (0) Abstract: Several activities related to geothermal resources in the western United States are described in this report. A database of geothermal site-specific thermal gradient and heat flow results from individual exploration wells in the western US has been assembled. Extensive temperature gradient and heat flow exploration data from the active exploration of the 1970's and 1980's were collected, compiled, and synthesized, emphasizing previously unavailable company data. Examples of

142

Introduction to the Proceedings of the Sixth Geothermal Reservoir Engineering Workshop, Stanford Geothermal Program  

SciTech Connect (OSTI)

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 thenumerical 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 i n 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 l i k e t o thank Jean Cook and Joanne Hartford (Petroleum Engineering Department, Stanford University) without whom there may never have been a Sixth Workshop. Henry J. Ramey, Jr. Paul Kruger Ian G. Donaldson Stanford University December 31, 1980

Ramey, Henry J. Jr.; Kruger, Paul; Donaldson, Ian G.

1980-12-18T23:59:59.000Z

143

STATUS OF GEOTHERMAL RESERVOIR ENGINEERING RESEARCH PROJECTS SUPPORTED BY USDOE/DIVISION OF GEOTHERMAL ENERGY  

E-Print Network [OSTI]

BY USDOE/DIVISION OF GEOTHERMAL ENERGY J J. H. Howard and W.BY USWE/DIVISION O GEOTHERMAL ENERGY F Berkeley, CaliforniaWE), Division of Geothermal Energy (mS) proposed that

Howard, J.H.

2011-01-01T23:59:59.000Z

144

Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations  

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

The purpose of phase 1 is to determine the feasibility of integrating geologic CO2 storage (GCS) with geothermal energy production. Phase 1 includes reservoir analyses to determine injector/producer well schemes that balance the generation of economically useful flow rates at the producers with the need to manage reservoir overpressure to reduce the risks associated with overpressure, such as induced seismicity and CO2 leakage to overlying aquifers. Based on a range of well schemes, techno-economic analyses of the levelized cost of electricity (LCOE) are conducted to determine the economic benefits of integrating GCS with geothermal energy production. In addition to considering CO2 injection, reservoir analyses are conducted for nitrogen (N2) injection to investigate the potential benefits of incorporating N2 injection with integrated geothermal-GCS, as well as the use of N2 injection as a potential pressure-support and working-fluid option. Phase 1 includes preliminary environmental risk assessments of integrated geothermal-GCS, with the focus on managing reservoir overpressure. Phase 1 also includes an economic survey of pipeline costs, which will be applied in Phase 2 to the analysis of CO2 conveyance costs for techno-economics analyses of integrated geothermal-GCS reservoir sites. Phase 1 also includes a geospatial GIS survey of potential integrated geothermal-GCS reservoir sites, which will be used in Phase 2 to conduct sweet-spot analyses that determine where promising geothermal resources are co-located in sedimentary settings conducive to safe CO2 storage, as well as being in adequate proximity to large stationary CO2 sources.

Buscheck, Thomas A.

145

STATUS OF GEOTHERMAL RESERVOIR ENGINEERING RESEARCH PROJECTS SUPPORTED BY USDOE/DIVISION OF GEOTHERMAL ENERGY  

E-Print Network [OSTI]

RESEARCH PROJECPS SUPPORTED BY USWE/DIVISION O GEOTHERMAL ENERGY F Berkeley, California 94720 ABSTRACT

Howard, J.H.

2011-01-01T23:59:59.000Z

146

Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels  

SciTech Connect (OSTI)

In enhanced geothermal systems (EGS) the reservoir permeability is often enhanced or created using hydraulic fracturing. In hydraulic fracturing, high fluid pressures are applied to confined zones in the subsurface usually using packers to fracture the host rock. This enhances rock permeability and therefore conductive heat transfer to the circulating geothermal fluid (e.g. water or supercritical carbon dioxide). The ultimate goal is to increase or improve the thermal energy production from the subsurface by either optimal designs of injection and production wells or by altering the fracture permeability to create different zones of circulation that can be exploited in geothermal heat extraction. Moreover, hydraulic fracturing can lead to the creation of undesirable short-circuits or fast flow-paths between the injection and extraction wells leading to a short thermal residence time, low heat recovery, and thus a short-life of the EGS. A potential remedy to these problems is to deploy a cementing (blocking, diverting) agent to minimize short-cuts and/or create new circulation cells for heat extraction. A potential diverting agent is the colloidal silica by-product that can be co-produced from geothermal fluids. Silica gels are abundant in various surface and subsurface applications, yet they have not been evaluated for EGS applications. In this study we are investigating the benefits of silica gel deployment on thermal response of an EGS, either by blocking short-circuiting undesirable pathways as a result of diverting the geofluid to other fractures; or creating, within fractures, new circulation cells for harvesting heat through newly active surface area contact. A significant advantage of colloidal silica is that it can be co-produced from geothermal fluids using an inexpensive membrane-based separation technology that was developed previously using DOE-GTP funding. This co-produced silica has properties that potentially make it useful as a fluid diversion agent for subsurface applications. Colloidal silica solutions exist as low-viscosity fluids during their induction period but then undergo a rapid increase in viscosity (gelation) to form a solid gel. The length of the induction period can be manipulated by varying the properties of the solution, such as silica concentration and colloid size. We believe it is possible to produce colloidal silica gels suitable for use as diverting agents for blocking undesirable fast-paths which result in short-circuiting the EGS once hydraulic fracturing has been deployed. In addition, the gels could be used in conventional geothermal fields to increase overall energy recovery by modifying flow.

Hunt, Jonathan

2013-01-31T23:59:59.000Z

147

Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels  

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

In enhanced geothermal systems (EGS) the reservoir permeability is often enhanced or created using hydraulic fracturing. In hydraulic fracturing, high fluid pressures are applied to confined zones in the subsurface usually using packers to fracture the host rock. This enhances rock permeability and therefore conductive heat transfer to the circulating geothermal fluid (e.g. water or supercritical carbon dioxide). The ultimate goal is to increase or improve the thermal energy production from the subsurface by either optimal designs of injection and production wells or by altering the fracture permeability to create different zones of circulation that can be exploited in geothermal heat extraction. Moreover, hydraulic fracturing can lead to the creation of undesirable short-circuits or fast flow-paths between the injection and extraction wells leading to a short thermal residence time, low heat recovery, and thus a short-life of the EGS. A potential remedy to these problems is to deploy a cementing (blocking, diverting) agent to minimize short-cuts and/or create new circulation cells for heat extraction. A potential diverting agent is the colloidal silica by-product that can be co-produced from geothermal fluids. Silica gels are abundant in various surface and subsurface applications, yet they have not been evaluated for EGS applications. In this study we are investigating the benefits of silica gel deployment on thermal response of an EGS, either by blocking short-circuiting undesirable pathways as a result of diverting the geofluid to other fractures; or creating, within fractures, new circulation cells for harvesting heat through newly active surface area contact. A significant advantage of colloidal silica is that it can be co-produced from geothermal fluids using an inexpensive membrane-based separation technology that was developed previously using DOE-GTP funding. This co-produced silica has properties that potentially make it useful as a fluid diversion agent for subsurface applications. Colloidal silica solutions exist as low-viscosity fluids during their induction period but then undergo a rapid increase in viscosity (gelation) to form a solid gel. The length of the induction period can be manipulated by varying the properties of the solution, such as silica concentration and colloid size. We believe it is possible to produce colloidal silica gels suitable for use as diverting agents for blocking undesirable fast-paths which result in short-circuiting the EGS once hydraulic fracturing has been deployed. In addition, the gels could be used in conventional geothermal fields to increase overall energy recovery by modifying flow.

Hunt, Jonathan

148

Geothermal reservoir temperatures estimated from the oxygen isotope...  

Open Energy Info (EERE)

temperatures estimated from the oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes Jump to: navigation, search GEOTHERMAL...

149

Proceedings of the technical review on advances in geothermal reservoir technology---Research in progress  

SciTech Connect (OSTI)

This proceedings contains 20 technical papers and abstracts describing most of the research activities funded by the Department of Energy (DOE's) Geothermal Reservoir Technology Program, which is under the management of Marshall Reed. The meeting was organized in response to several requests made by geothermal industry representatives who wanted to learn more about technical details of the projects supported by the DOE program. Also, this gives them an opportunity to personally discuss research topics with colleagues in the national laboratories and universities.

Lippmann, M.J. (ed.)

1988-09-01T23:59:59.000Z

150

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

and lithologies. This method promises to lower the cost of geothermal energy production in several ways. Knowledge is funded by the Department of Energy, Enhanced Geothermal Systems Technology Development program. The DOEPROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University

Stanford University

151

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

E-Print Network [OSTI]

their untapped geothermal resources) for cost effective power production and direct-use applications. As part for further study). INTRODUCTION Geothermal energy is an under exploited resource throughout the world, yetPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University

Stanford University

152

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

for the generation of electrical energy at the Los Azufres geothermal system, Mexico (Ruíz et al., 2010). The projectPROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University IN A PIPELINE NETWORK OF GEOTHERMAL SYSTEM Mahendra P. Verma Geotermia, Instituto de Investigaciones Eléctricas

Stanford University

153

Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis  

SciTech Connect (OSTI)

This report highlights the work that was done to characterize fractured geothermal reservoirs using production data. That includes methods that were developed to infer characteristic functions from production data and models that were designed to optimize reinjection scheduling into geothermal reservoirs, based on these characteristic functions. The characterization method provides a robust way of interpreting tracer and flow rate data from fractured reservoirs. The flow-rate data are used to infer the interwell connectivity, which describes how injected fluids are divided between producers in the reservoir. The tracer data are used to find the tracer kernel for each injector-producer connection. The tracer kernel describes the volume and dispersive properties of the interwell flow path. A combination of parametric and nonparametric regression methods were developed to estimate the tracer kernels for situations where data is collected at variable flow-rate or variable injected concentration conditions. The characteristic functions can be used to calibrate thermal transport models, which can in turn be used to predict the productivity of geothermal systems. This predictive model can be used to optimize injection scheduling in a geothermal reservoir, as is illustrated in this report.

Roland N. Horne, Kewen Li, Mohammed Alaskar, Morgan Ames, Carla Co, Egill Juliusson, Lilja Magnusdottir

2012-06-30T23:59:59.000Z

154

Geothermal Well Testing and Evaluation | Open Energy Information  

Open Energy Info (EERE)

Geothermal Well Testing and Evaluation Geothermal Well Testing and Evaluation Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Geothermal Well Testing and Evaluation Author Jon Ragnarsson Published Iceland Geosurvey, 2013 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Geothermal Well Testing and Evaluation Citation Jon Ragnarsson. Geothermal Well Testing and Evaluation [Internet]. 2013. Iceland Geosurvey. [cited 2013/10/18]. Available from: http://www.geothermal.is/geothermal-well-testing-and-evaluation Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Well_Testing_and_Evaluation&oldid=688939" Categories: References Geothermal References Uncited References What links here Related changes Special pages

155

Geothermal Electricity Technology Evaluation Model (GETEM) | Open Energy  

Open Energy Info (EERE)

Electricity Technology Evaluation Model (GETEM) Electricity Technology Evaluation Model (GETEM) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Geothermal Electricity Technology Evaluation Model (GETEM) Agency/Company /Organization: National Renewable Energy Laboratory Sector: Climate Focus Area: Geothermal Phase: Evaluate Options Topics: Opportunity Assessment & Screening Resource Type: Software/modeling tools User Interface: Desktop Application Website: www1.eere.energy.gov/geothermal/getem.html OpenEI Keyword(s): EERE tool Equivalent URI: cleanenergysolutions.org/content/geothermal-electricity-technology-eva Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance References: Geothermal Electricity Technology Evaluation Model[1] Model the estimated performance and costs of available U.S. geothermal

156

Integrated Geothermal-CO2 Storage Reservoirs: FY1 Final Report  

SciTech Connect (OSTI)

The purpose of phase 1 is to determine the feasibility of integrating geologic CO2 storage (GCS) with geothermal energy production. Phase 1 includes reservoir analyses to determine injector/producer well schemes that balance the generation of economically useful flow rates at the producers with the need to manage reservoir overpressure to reduce the risks associated with overpressure, such as induced seismicity and CO2 leakage to overlying aquifers. This submittal contains input and output files of the reservoir model analyses. A reservoir-model "index-html" file was sent in a previous submittal to organize the reservoir-model input and output files according to sections of the FY1 Final Report to which they pertain. The recipient should save the file: Reservoir-models-inputs-outputs-index.html in the same directory that the files: Section2.1.*.tar.gz files are saved in.

Thomas A. Buscheck

2012-01-01T23:59:59.000Z

157

Reservoir Investigations on the Hot Dry Rock Geothermal System...  

Open Energy Info (EERE)

Investigations on the Hot Dry Rock Geothermal System, Fenton Hill, New Mexico- Tracer Test Results Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference...

158

Reducing temperature uncertainties by stochastic geothermal reservoir modelling  

Science Journals Connector (OSTI)

......reducing risk of failure and cost. In addition, the stochastic...Clauser C. , 2006. Geothermal Energy, inLandolt-Bornstein...and Technologies, Vol. 3: Energy Technologies, Subvol. C: Renewable Energies, pp. 480-595, ed. Heinloth......

C. Vogt; D. Mottaghy; A. Wolf; V. Rath; R. Pechnig; C. Clauser

2010-04-01T23:59:59.000Z

159

Reservoir Simulation on the Cerro Prieto Geothermal Field: A Continuing Study  

SciTech Connect (OSTI)

The Cerro Prieto geothermal field is a liquid-dominated geothermal reservoir of complex geological and hydrological structure. It is located at the southern end of the Salton-Mexicali trough which includes other geothermal anomalies as Heber and East Mesa. Although in 1973, the initial power plant installed capacity was 75 MW of electrical power, this amount increased to 180 MW in 1981 as field development continued. It is expected to have a generating capacity of 620 MW by the end of 1985, when two new plants will be completely in operation. Questions about field deliverability, reservoir life and ultimate recovery related to planned installations are being presently asked. Numerical modeling studies can give very valuable answers to these questions, even at the early stages in the development of a field. An effort to simulate the Cerro Prieto geothermal reservoir has been undergoing for almost two years. A joint project among Comision Federal de Electricidad (CFE), Instituto de Investigaciones Electricas (IIE) and Intercomp of Houstin, Texas, was created to perform reservoir engineering and simulation studies on this field. The final project objective is tosimulate the behavior of the old field region when production from additional wells located in the undeveloped field zones will be used for feeding the new power plants.

Castaneda, M.; Marquez, R.; Arellano, V.; Esquer, C.A.

1983-12-15T23:59:59.000Z

160

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....

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

the reservoir rocks to the working fluid. A key assumption associated with reservoir creation with evolving porosity and permeability for each element that depends on the local structure of the discretePROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University

Stanford University

162

Factors controlling reservoir quality in tertiary sandstones and their significance to geopressured geothermal production  

SciTech Connect (OSTI)

Variable intensity of diagenesis is the factor primarily responsible for contrasting regional reservoir quality of Tertiary sandstones from the upper and lower Texas coast. Detailed comparison of Frio sandstone from the Chocolate Bayou/Danbury Dome area, Brazoria County, and Vicksburg sandstones from the McAllen Ranch Field area, Hidalgo County, reveals that extent of diagenetic modification is most strongly influenced by (1) detrital mineralogy and (2) regional geothermal gradients. The regional reservoir quality of Frio sandstones from Brazoria County is far better than that characterizing Vicksburg sandstones from Hidalgo County, especially at depths suitable for geopressured geothermal energy production. However, in predicting reservoir quality on a site-specific basis, locally variable factors such as relative proportions for porosity types, pore geometry as related to permeability, and local depositional environment must also be considered. Even in an area of regionally favorable reservoir quality, such local factors can significantly affect reservoir quality and, hence, the geothermal production potential of a specific sandstone unit.

Loucks, R.G.; Richmann, D.L.; Milliken, K.L.

1981-01-01T23:59:59.000Z

163

Comprehensive Evaluation of the Geothermal Resource Potential within the  

Open Energy Info (EERE)

Comprehensive Evaluation of the Geothermal Resource Potential within the Comprehensive Evaluation of the Geothermal Resource Potential within the Pyramid Lake Paiute Reservation Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Comprehensive Evaluation of the Geothermal Resource Potential within the Pyramid Lake Paiute Reservation Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description The proposed project will provide state-of-the-art characterization information and a detailed analysis of the geothermal resource potential at the Astor Pass site. The information gained during this study will allow the Pyramid Lake Paiute Tribe to make informed decisions regarding construction of a geothermal power plant. Additional benefits include the transfer of new technologies and geothermal data to the geothermal industry and to create and preserve nearly three dozen jobs that will serve to stimulate the economy in accordance with the American Recovery and Reinvestment Act of 2009.

164

Final Technical Report, Geothermal Resource Evaluation And Definitioni  

Open Energy Info (EERE)

Technical Report, Geothermal Resource Evaluation And Definitioni Technical Report, Geothermal Resource Evaluation And Definitioni (Gred) Program-Phases I, Ii, And Iii For The Animas Valley, Nm Geothermal Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Final Technical Report, Geothermal Resource Evaluation And Definitioni (Gred) Program-Phases I, Ii, And Iii For The Animas Valley, Nm Geothermal Resource Details Activities (9) Areas (1) Regions (0) Abstract: This report contains a detailed summary of a methodical and comprehensive assessment of the potential of the Animas Valley, New Mexico geothermal resource leasehold owned by Lightning Dock Geothermal, Inc. Work described herein was completed under the auspices of the Department of Energy (DOE) Cooperative Agreement DE-FC04-00AL66977, Geothermal Resource

165

Analysis of Injection-Induced Micro-Earthquakes in a Geothermal Steam Reservoir, The Geysers Geothermal Field, California  

E-Print Network [OSTI]

and Renewable Energy, Geothermal Technologies Program, ofwith energy extraction at The Geysers geothermal field. We

Rutqvist, J.

2008-01-01T23:59:59.000Z

166

An updated conceptual model of the Los Humeros geothermal reservoir (Mexico)  

Science Journals Connector (OSTI)

An analysis of production and reservoir engineering data of 42 wells from the Los Humeros geothermal field (Mexico) allowed obtaining the pressure and temperature profiles for the unperturbed reservoir fluids and developing 1-D and 2-D models for the reservoir. Results showed the existence of at least two reservoirs in the system: a relatively shallow liquid-dominant reservoir located between 1025 and 1600 m above sea level (a.s.l.) the pressure profile of which corresponds to a 300330C boiling water column and a deeper low-liquid-saturation reservoir located between 850 and 100 m a.s.l. with temperatures between 300 and 400C. Both reservoirs seem to be separated by a vitreous tuff lithological unit, but hydraulic connectivity occurs through faults and fractures of the system, allowing deep steam to ascend while condensate flows down (porous heat pipe). The geochemical and isotopic (?18O, ?D) composition of the produced fluids can be explained as the result of a boiling process with reservoir steam separation and partial condensation, a fact that agrees with the proposed reservoir engineering model.

V.M Arellano; A Garc??a; R.M Barragn; G Izquierdo; A Aragn; D Nieva

2003-01-01T23:59:59.000Z

167

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

Broader source: Energy.gov [DOE]

Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

168

A History of Geothermal Energy Research and Development in the United States: Reservoir Engineering 1976-2006  

Broader source: Energy.gov [DOE]

This report summarizes significant research projects performed by the U.S. Department of Energy (DOE) over 30 years to overcome challenges in reservoir engineering and to make generation of electricity from geothermal resources more cost-competitive.

169

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, 94720, USA ABSTRACT Interactions between hydrothermal fluids and rock alter mineralogy, leading permeability reduction in fractured and intact Westerly granite due to high-temperature fluid flow through core

Stanford University

170

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, proppant will need to withstand high temperatures, acidified fluids, acid treatments, and cleanouts while in equilibrium with fluids of varying composition. TOUGHREACT was used to model one dimensional flow

Stanford University

171

Julian, B.R. and G.R. Foulger, Improved Methods for Mapping Permeability and Heat sources in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering, Stanford University,  

E-Print Network [OSTI]

Systems (EGS) experiments and other geothermal operations. With support from the Dept. of Energy, we in Geothermal Areas using Microearthquake Data, Thirty-Fifth Workshop on Geothermal Reservoir Engineering and Heat sources in Geothermal Areas using Microearthquake Data Bruce R. Julian§ U. S. Geological Survey

Foulger, G. R.

172

Geothermal reservoir assessment case study: Northern Dixie Valley, Nevada  

SciTech Connect (OSTI)

Two 1500 foot temperature gradient holes and two deep exploratory wells were drilled and tested. Hydrologic-hydrochemical, shallow temperature survey, structural-tectonic, petrologic alteration, and solid-sample geochemistry studies were completed. Eighteen miles of high resolution reflection seismic data were gathered over the area. The study indicates that a geothermal regime with temperatures greater than 400/sup 0/F may exist at a depth of approximately 7500' to 10,000' over an area more than ten miles in length.

Denton, J.M.; Bell, E.J.; Jodry, R.L.

1980-11-01T23:59:59.000Z

173

Electromagnetic soundings over a geothermal reservoir in Dixie Valley, Nevada  

SciTech Connect (OSTI)

An electromagnetic (EM) sounding survey was performed over a region encompassing the Dixie Valley geothermal field with the purpose of mapping the subsurface resistivity in the geothermal field and its surroundings. The EM survey consisted of 19 frequency-domain depth soundings made with the EM-60 system using three separate horizontal-loop transmitters, and was designed to explore a narrow region adjacent to the Stillwater Range to a depth of 2 to 3 k. Most sounding curves could be fitted to three-layer resistivity models. The surface layer is moderately conductive (10 to 15 ohm-m), has a maximum thickness of 500 m, and consists mainly of alluvial fan and lake sediments. More conductive zones are associated with hydrothermally altered rocks; a resistivity high may be associated with siliceous hot spring deposits. The conductive second layer (2 to 5 ohm-m) varies in thickness from 400 to 800 m and thickens toward the center of the valley. This layer probably consists of lacustrine sediments saturated with saline waters. Local resistivity lows observed in the second layer may be related to elevated subsurface temperatures. This layer may act as a cap rock for the geothermal system. Resistivities of the third layer are high (50 to 100 ohm-m) except in a narrow 5-km band paralleling the range front. This low-resistivity zone, within volcanic rocks, correlates well in depth and location with reported zones of geothermal fluid production. It also seems to correlate with the western margin of a concealed graben structure previously inferred from other geophysical data.

Wilt, M.J.; Goldstein, N.E.

1983-04-01T23:59:59.000Z

174

Use of Slim Holes for Geothermal Reservoir Assessment: An Update  

SciTech Connect (OSTI)

Production and injection data from slim holes and large-diameter wells in three (3) geothermal fields (Oguni, Sumikawa, Steamboat Hills) were examined to determine the effect of borehole diameter (1) on the discharge rate and (2) on the productivity/injectivity indices. For boreholes with liquid feedzones, maximum discharge rates scale with diameter according to a relationship previously derived by Pritchett. The latter scaling rule does not apply to discharge data for boreholes with two-phase feedzones. Data from Oguni and Sumikawa geothermal fields indicate that the productivity (for boreholes with liquid feeds) and injectivity indices are more or less equal. The injectivity indices for Sumikawa boreholes are essentially independent of borehole diameter. The latter result is at variance with Oguni data; both the productivity and injectivity indices for Oguni boreholes display a strong variation with borehole diameter. Based on the discharge and injection data from these three geothermal fields, the flow rate of large-diameter production wells with liquid feedzones can be predicted using data from slim holes.

Garg, S.K.; Combs, J.; Goranson, C.

1995-01-01T23:59:59.000Z

175

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University plants, a pipe system is used to gather fluids from production wells and transport them to a power plant, or to steam separators. In the case of hydrothermal systems, where the geothermal fluid is a mixture of steam

Stanford University

176

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University, which produces fluid at temperatures in the range of 100-130 °C. Since 1979, the geothermal resource has the fluids from the entire region into distinctive units. This characterization provided valuable clues

Stanford University

177

Advancing Reactive Tracer Methods for Measurement of Thermal Evolution in Geothermal Reservoirs: Final Report  

SciTech Connect (OSTI)

The injection of cold fluids into engineered geothermal system (EGS) and conventional geothermal reservoirs may be done to help extract heat from the subsurface or to maintain pressures within the reservoir (e.g., Rose et al., 2001). As these injected fluids move along fractures, they acquire heat from the rock matrix and remove it from the reservoir as they are extracted to the surface. A consequence of such injection is the migration of a cold-fluid front through the reservoir (Figure 1) that could eventually reach the production well and result in the lowering of the temperature of the produced fluids (thermal breakthrough). Efficient operation of an EGS as well as conventional geothermal systems involving cold-fluid injection requires accurate and timely information about thermal depletion of the reservoir in response to operation. In particular, accurate predictions of the time to thermal breakthrough and subsequent rate of thermal drawdown are necessary for reservoir management, design of fracture stimulation and well drilling programs, and forecasting of economic return. A potential method for estimating migration of a cold front between an injection well and a production well is through application of reactive tracer tests, using chemical whose rate of degradation is dependent on the reservoir temperature between the two wells (e.g., Robinson 1985). With repeated tests, the rate of migration of the thermal front can be determined, and the time to thermal breakthrough calculated. While the basic theory behind the concept of thermal tracers has been understood for some time, effective application of the method has yet to be demonstrated. This report describes results of a study that used several methods to investigate application of reactive tracers to monitoring the thermal evolution of a geothermal reservoir. These methods included (1) mathematical investigation of the sensitivity of known and hypothetical reactive tracers, (2) laboratory testing of novel tracers that would improve method sensitivity, (3) development of a software tool for design and interpretation of reactive tracer tests and (4) field testing of the reactive tracer temperature monitoring concept.

Mitchell A. Plummer; Carl D. Palmer; Earl D. Mattson; Laurence C. Hull; George D. Redden

2011-07-01T23:59:59.000Z

178

EFFECTS OF WATER INJECTION INTO FRACTURED GEOTHERMAL RESERVOIRS  

E-Print Network [OSTI]

DIVISION OF THE DEPARTMENT OF ENERGY STANFORD-DOE CONTRACT DE-AT03-80SF11459 #12;EFFECTS OF WATER INJECTION improvement and degradation of total energy recovery. placement of reservoir f l u i d can mean support of waste water disposal and %proved re- source recovery. I n order t o correctly apportion importance

Stanford University

179

Laboratory study of acid stimulation of drilling-mud-damaged geothermal-reservoir materials. Final report  

SciTech Connect (OSTI)

Presented here are the results of laboratory testing performed to provide site specific information in support of geothermal reservoir acidizing programs. The testing program included laboratory tests performed to determine the effectiveness of acid treatments in restoring permeability of geologic materials infiltrated with hydrothermally altered sepiolite drilling mud. Additionally, autoclave tests were performed to determine the degree of hydrothermal alteration and effects of acid digestion on drilling muds and drill cuttings from two KGRA's. Four laboratory scale permeability/acidizing tests were conducted on specimens prepared from drill cuttings taken from two geothermal formations. Two tests were performed on material from the East Mesa KGRA Well No. 78-30, from a depth of approximately 5500 feet, and two tests were performed on material from the Roosevelt KGRA Well No. 52-21, from depths of approximately 7000 to 7500 feet. Tests were performed at simulated in situ geothermal conditions of temperature and pressure.

Not Available

1983-05-01T23:59:59.000Z

180

Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques |  

Open Energy Info (EERE)

Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Evaluation of the Mercury Soil Mapping Geothermal Exploration Techniques Abstract In order to evaluate the suitability of the soil mercury geochemical survey as a geothermal exploration technique, soil concentrates of mercy are compared to the distribution of measured geothermal gradients at Dixie Valley, Nevada; Roosevelt Hot Springs, Utah; and Nova, Japan. Zones containing high mercury values are found to closely correspond to high geothermal gradient zones in all three areas. Moreover, the highest mercury values within the anomalies are found near the wells with the highest geothermal gradient. Such close correspondence between soil concentrations

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Geothermal low-temperature reservoir assessment in Dona Ana County, New Mexico. Final report  

SciTech Connect (OSTI)

Sixty-four shallow temperature gradient holes were drilled on the Mesilla Valley East Mesa (east of Interstate Highways 10 and 25), stretching from US Highway 70 north of Las Cruces to NM Highway 404 adjacent to Anthony, New Mexico. Using these data as part of the site selection process, Chaffee Geothermal, Ltd. of Denver, Colorado, drilled two low-temperature geothermal production wells to the immediate north and south of Tortugas Mountain and encountered a significant low-temperature reservoir, with a temperature of about 150{sup 0}F and flow rates of 750 to 1500 gallons per minute at depths from 650 to 1250 feet. These joint exploration activities resulted in the discovery and confirmation of a 30-square-mile low-temperature geothermal anomaly just a few miles to the east of Las Cruces that has been newly named as the Las Cruces east Mesa Geothermal Field. Elevated temperature and heat flow data suggest that the thermal anomaly is fault controlled and extends southward to the Texas border covering a 100-square-mile area. With the exception of some localized perturbations, the anomaly appears to decrease in temperature from the north to the south. Deeper drilling is required in the southern part of the anomaly to confirm the existence of commercially-exploitable geothermal waters.

Icerman, L.; Lohse, R.L.

1983-04-01T23:59:59.000Z

182

Deep Geothermal Reservoir Temperatures in the Eastern Snake River Plain, Idaho using Multicomponent Geothermometry  

SciTech Connect (OSTI)

The U.S. Geological survey has estimated that there are up to 4,900 MWe of undiscovered geothermal resources and 92,000 MWe of enhanced geothermal potential within the state of Idaho. Of particular interest are the resources of the Eastern Snake River Plain (ESRP) which was formed by volcanic activity associated with the relative movement of the Yellowstone Hot Spot across the state of Idaho. This region is characterized by a high geothermal gradient and thermal springs occurring along the margins of the ESRP. Masking much of the deep thermal potential of the ESRP is a regionally extensive and productive cold-water aquifer. We have undertaken a study to infer the temperature of the geothermal system hidden beneath the cold-water aquifer of the ESRP. Our approach is to estimate reservoir temperatures from measured water compositions using an inverse modeling technique (RTEst) that calculates the temperature at which multiple minerals are simultaneously at equilibrium while explicitly accounting for the possible loss of volatile constituents (e.g., CO2), boiling and/or water mixing. In the initial stages of this study, we apply the RTEst model to water compositions measured from a limited number of wells and thermal springs to estimate the regionally extensive geothermal system in the ESRP.

Ghanashyam Neupane; Earl D. Mattson; Travis L. McLing; Carl D. Palmer; Robert W. Smith; Thomas R. Wood

2014-02-01T23:59:59.000Z

183

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications  

Broader source: Energy.gov [DOE]

Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications presentation at the April 2013 peer review meeting held in Denver, Colorado.

184

U.S. DOE Geothermal Electricity Technology Evaluation Model ...  

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

1 Greg Mines Idaho National Laboratory June 30, 2011 U.S. Department of Energy Geothermal Electricity Technology Evaluation Model (GETEM) Webinar EERE Business Administration...

185

Geothermal: Sponsored by OSTI -- Generic Natural Systems Evaluation...  

Office of Scientific and Technical Information (OSTI)

Generic Natural Systems Evaluation - Thermodynamic Database Development and Data Management Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log...

186

Double Difference Earthquake Locations at the Salton Sea Geothermal Reservoir  

SciTech Connect (OSTI)

The purpose of this paper is to report on processing of raw waveform data from 4547 events recorded at 12 stations between 2001 and 2005 by the Salton Sea Geothermal Field (SSGF) seismic network. We identified a central region of the network where vertically elongated distributions of hypocenters have previously been located from regional network analysis. We process the data from the local network by first autopicking first P and S arrivals; second, improving these with hand picks when necessary; then, using cross-correlation to provide very precise P and S relative arrival times. We used the HypoDD earthquake location algorithm to locate the events. We found that the originally elongated distributions of hypocenters became more tightly clustered and extend down the extent of the study volume at 10 Km. However, we found the shapes to depend on choices of location parameters. We speculate that these narrow elongated zones of seismicity may be due to stress release caused by fluid flow.

Boyle, K L; Hutchings, L J; Bonner, B P; Foxall, W; Kasameyer, P W

2007-08-08T23:59:59.000Z

187

Evaluation Of Baltazor Known Geothermal Resources Area, Nevada | Open  

Open Energy Info (EERE)

Baltazor Known Geothermal Resources Area, Nevada Baltazor Known Geothermal Resources Area, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Evaluation Of Baltazor Known Geothermal Resources Area, Nevada Details Activities (3) Areas (1) Regions (0) Abstract: By virtue of the Geothermal Steam Act of 1970, the U.S. Geological Survey is required to appraise geothermal resources of the United States prior to competitive lease sales. This appraisal involves coordinated input from a variety of disciplines, starting with reconnaissance geology and geophysics. This paper describes how the results of several geophysical methods used in KGRA evaluation were interpreted by the authors, two geophysicists, involved with both the Evaluation Committee and the research program responsible for obtaining and interpreting the

188

Effectiveness of Shallow Temperatures Surveys to Target a Geothermal Reservoir at Previously Explored Sites at McGee Mountain, Nevada  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project Objectives: To evaluate the cost-effectiveness of two innovative technologies in early-stage geothermal exploration:a) shallow (2m) survey; b) hydroprobe; and Identify a geothermal resource at the project site.

189

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty-Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9-  

E-Print Network [OSTI]

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty- Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9- 11, 2009. Monitoring Geothermal Processes with Microearthquake Mechanisms Bruce R. Julian, U. S

Foulger, G. R.

190

STANFORD GEOTHERMAL PR0GRAh.I STANFORD UNIVERSITY  

E-Print Network [OSTI]

Department of Energy since 1975. research i n geothermal r e s e r v o i r engineering techniques t h a t w iSTANFORD GEOTHERMAL PR0GRAh.I STANFORD UNIVERSITY STANFORD,CALIFORNIA 94305 SGP-TR-5 1 GEOTHERMAL Implications of Adsorption and Formation Fluid Composition on Geothermal Reservoir Evaluation . . 40 TASK 5

Stanford University

191

A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration  

Open Energy Info (EERE)

Evaluation Of Electromagnetic Methods In Geothermal Exploration Evaluation Of Electromagnetic Methods In Geothermal Exploration - L Pellerin, J M Johnston & G W Hohmann, Geophysics, 61(1), 1996, Pp 121-130 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Numerical Evaluation Of Electromagnetic Methods In Geothermal Exploration - L Pellerin, J M Johnston & G W Hohmann, Geophysics, 61(1), 1996, Pp 121-130 Details Activities (0) Areas (0) Regions (0) Abstract: Unavailable Author(s): Unknown Published: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1996 Document Number: Unavailable DOI: 10.1016/S0148-9062(97)87449-9 Source: View Original Journal Article Retrieved from "http://en.openei.org/w/index.php?title=A_Numerical_Evaluation_Of_Electromagnetic_Methods_In_Geothermal_Exploration_-_L_Pellerin,_J_M_Johnston_%26_G_W_Hohmann,_Geophysics,_61(1),_1996,_Pp_121-130&oldid=3883

192

Pressure analysis of the hydromechanical fracture behaviour in stimulated tight sedimentary geothermal reservoirs  

E-Print Network [OSTI]

The future of Geothermal Energy. Massachusetts Institute ofthe exploitation of geothermal energy from such rocks. Wemethod to extract geothermal energy from tight sedimentary

Wessling, S.

2009-01-01T23:59:59.000Z

193

Geothermal-Reservoir Well-Stimulation Program. Program status report  

SciTech Connect (OSTI)

Seven experimental fracture stimulation treatments completed to date and the laboratory work performed to develop the stimulation technology are described. A discussion of the pre-stimulation and post-stimulation data and their evaluation is provided for each experiment. Six of the seven stimulation experiments were at least technically successful in stimulating the wells. The two fracture treatments in East Mesa 58-30 more than doubled the producing rate of the previously marginal producer. The two fracture treatments in Raft River and the two in Baca were all successful in obtaining significant production from previously nonproductive intervals. However, these treatments failed to establish commercial production due to deficiencies in either fluid temperature or flow rate. The acid etching treatment in the well at The Geysers did not have any material effect on producing rate.

Not Available

1982-05-01T23:59:59.000Z

194

Effects of non-condensible gases on fluid recovery in fractured geothermal reservoirs  

E-Print Network [OSTI]

1). In most canes, geothermal wells have only a few majorhigh temperature geothermal wells. For the fracture relative

Bodvarsson, Gudmundur S.; Gaulke, Scott

1986-01-01T23:59:59.000Z

195

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

E-Print Network [OSTI]

. In addition on volcanic rocks collumnar and sheet joints occured caused the rocks have a good porosityPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University area underneath cause the densities difference between rocks and its surrounding. The difference

Stanford University

196

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

for frictional failure often dominate fluid flow in low-porosity crystalline rocks (Barton, 1995; Ito and Zoback (i.e., shearing) fractures help maintain geothermal reservoir permeability despite crack sealing and other geochemical fluid- rock interactions that should destroy that permeability. By analogy

Stanford University

197

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

E-Print Network [OSTI]

in the derived porosity-permeability relationship. This first step will be applied to every single wellPROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University and the resulting probability distributions of permeability, net-to-gross ratio and temperature are combined

Stanford University

198

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

E-Print Network [OSTI]

strategies involve reservoir stimulation to overcome the lack of porosity and/or permeability of the rock of geological conditions such as presence of hydrothermal fluid, high heat flux, high rock permeability and/or high rock porosity. Enhanced (or Engineered) Geothermal systems (EGS) are an attempt to exploit

Stanford University

199

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

using continuum models. Despite the fundamental uncertainties inherited within the probabilistic the circulation loop and installing operating equipment (DOE, 2008). Figure 1: Logical steps to complete an EGS reservoir project (DOE, 2008) Despite that geothermal energy is a mature geosciences energy technology

Stanford University

200

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University MWe. A geochemical assessment of the field is made based on analytical data of fluids sampled in the initial aquifer fluids were modeled. Results indicate that "excess enthalpy" discharged by some wells

Stanford University

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

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

E-Print Network [OSTI]

PROCEEDINGS, Thirty-Sixth Workshop on Geothermal Reservoir Engineering Stanford University (the better the fluid flow, the lower the calcite content). This suggests that the fracture zones acting as flow pathways for the circulation of deep and hot fluids. These are crucial conditions

Stanford University

202

Flint Geothermal Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Flint Geothermal Geothermal Area Flint Geothermal Geothermal Area (Redirected from Flint Geothermal Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Flint Geothermal Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

203

Geothermal Basics  

Broader source: Energy.gov [DOE]

Geothermal energygeo (earth) + thermal (heat)is heat energy from the earth. What is a geothermal resource? To understand the basics of geothermal energy production, geothermal resources are reservoirs of hot water that exist at varying temperatures and depths below the Earth's surface. Mile-or-more-deep wells can be drilled into underground reservoirs to tap steam and very hot water that can be brought to the surface for use in a variety of applications, including electricity generation, direct use, and heating and cooling. In the United States, most geothermal reservoirs are located in the western states. This page represents how geothermal energy can be harnessed to generate electricity.

204

Laboratory testing and modeling to evaluate perfluorocarbon compounds as tracers in geothermal systems  

SciTech Connect (OSTI)

The thermal stability and adsorption characteristics of three perfluorinated hydrocarbon compounds were evaluated under geothermal conditions to determine the potential to use these compounds as conservative or thermally-degrading tracers in Engineered (or Enhanced) Geothermal Systems (EGS). The three compounds tested were perfluorodimethyl-cyclobutane (PDCB), perfluoromethylcyclohexane (PMCH), and perfluorotrimethylcyclohexane (PTCH), which are collectively referred to as perfluorinated tracers, or PFTs. Two sets of duplicate tests were conducted in batch mode in gold-bag reactors, with one pair of reactors charged with a synthetic geothermal brine containing the PFTs and a second pair was charged with the brine-PFT mixture plus a mineral assemblage chosen to be representative of activated fractures in an EGS reservoir. A fifth reactor was charged with deionized water containing the three PFTs. The experiments were conducted at {approx}100 bar, with temperatures ranging from 230 C to 300 C. Semi-analytical and numerical modeling was also conducted to show how the PFTs could be used in conjunction with other tracers to interrogate surface area to volume ratios and temperature profiles in EGS reservoirs. Both single-well and cross-hole tracer tests are simulated to illustrate how different suites of tracers could be used to accomplish these objectives. The single-well tests are especially attractive for EGS applications because they allow the effectiveness of a stimulation to be evaluated without drilling a second well.

Reimus, Paul W [Los Alamos National Laboratory

2011-01-21T23:59:59.000Z

205

The Monitoring and Evaluation of Geothermal Systems.  

E-Print Network [OSTI]

??With the heightened importance of green engineering in todays society, harnessing the Earths internal energy has become ever more important. Specifically, the use of geothermal (more)

Maynard, Whitney E.

2010-01-01T23:59:59.000Z

206

HEAT AND MASS TRANSFER IN A FAULT-CONTROLLED GEOTHERMAL RESERVOIR CHARGED AT CONSTANT PRESSURE  

E-Print Network [OSTI]

Subsurface Study of Imperial Valley Geothermal Anomalies,of the Mesa Geothermal Anomaly, Imperial Valley, California,geothermal systems such as those at Wairakei (Grindley [19]), Broadlands (Grindley [20]), Long Valley (Rinehart and Ross [21]), Imperial

Goyal, K.P.

2013-01-01T23:59:59.000Z

207

Evaluation of the Geothermal Public Power Utility Workshops in California  

SciTech Connect (OSTI)

The federal government devotes significant resources to educating consumers and businesses about geothermal energy. Yet little evidence exists for defining the kinds of information needed by the various audiences with specialized needs. This paper presents the results of an evaluation of the Geothermal Municipal Utility Workshops that presented information on geothermal energy to utility resource planners at customer-owned utilities in California. The workshops were sponsored by the Western Area Power Administration and the U.S. Department of Energy's GeoPowering the West Program and were intended to qualitatively assess the information needs of municipal utilities relative to geothermal energy and get feedback for future workshops. The utility workshop participants found the geothermal workshops to be useful and effective for their purposes. An important insight from the workshops is that utilities need considerable lead-time to plan a geothermal project. They need to know whether it is better to own a project or to purchase geothermal electricity from another nonutility owner. California customer-owned utilities say they do not need to generate more electricity to meet demand, but they do need to provide more electricity from renewable resources to meet the requirements of the state's Renewable Portfolio Standard.

Farhar, B. C.

2004-10-01T23:59:59.000Z

208

Retrospective Benefit-Cost Evaluation of U.S. DOE Geothermal...  

Office of Environmental Management (EM)

Retrospective Benefit-Cost Evaluation of U.S. DOE Geothermal Technologies R&D Program Investments Retrospective Benefit-Cost Evaluation of U.S. DOE Geothermal Technologies R&D...

209

Geothermal power in Italy: A social multi-criteria evaluation  

Science Journals Connector (OSTI)

Abstract Italy was the first country in the world to exploit geothermal resources for electricity production. In Europe it is still the first country in terms of installed capacity. Currently, the only region in Italy with geothermal power plants is Tuscany. This study focuses on Mt. Amiata, one of the two geothermal areas in Tuscany. In Mt. Amiata a strong opposition to the exploitation of geothermal resources is rising. The context is characterized by contested scientific results regarding crucial issues such as the impact of geothermal exploitation on human health and the conservation of water resources. A social multi-criteria evaluation is proposed to explore the different legitimate perspectives of the actors involved. Scenarios are distinguished in terms of their technology, plant site and installed capacity. Criteria reflect economic considerations, social aspects and environmental concerns. A Condorcet consistent aggregation algorithm is applied and results are analyzed using a sensitivity analysis. The alternative scenarios are evaluated by attaching different weights to the criteria reflecting divergent points of view.

Matteo Borzoni; Francesco Rizzi; Marco Frey

2014-01-01T23:59:59.000Z

210

Geothermal Basics  

Broader source: Energy.gov [DOE]

Geothermal energy is thermal energy generated and stored in the Earth. Geothermal energy can manifest on the surface of the Earth, or near the surface of the Earth, where humankind may harness it to serve our energy needs. Geothermal resources are reservoirs of hot water that exist at varying temperatures and depths below the Earth's surface. Wells can be drilled into these underground reservoirs to tap steam and very hot water that can be brought to the surface for a variety of uses.

211

Use of Geophysical Techniques to Characterize Fluid Flow in a Geothermal Reservoir  

Broader source: Energy.gov [DOE]

Project objectives: Joint inversion of geophysical data for ground water flow imaging; Reduced the cost in geothermal exploration and monitoring; & Combined passive and active geophysical methods.

212

Numerical Study of Downhole Heat Exchanger Concept in Geothermal Energy Extraction from Saturated and Fractured Reservoirs.  

E-Print Network [OSTI]

??Geothermal energy has gained a lot of attention recently due to several favorable aspects such as ubiquitously distributed, renewable, low emission resources while leveraging the (more)

Feng, Yin

2012-01-01T23:59:59.000Z

213

Radon Transect Studies in Vapor- and Liquid-Dominated Geothermal Reservoirs  

SciTech Connect (OSTI)

This communication describes the transect analysis conducted at the vapor-dominated reservoirs at The Geysers in California and the liquid-dominated reservoirs at Cerro Prieto in Baja, California.

Semprini, Lewis; Kruger, Paul

1980-12-16T23:59:59.000Z

214

Summary of Hot-Dry-Rock Geothermal Reservoir Testing 1978-1980...  

Open Energy Info (EERE)

fracturing, but also by heat extraction and thermal contraction effects. Reservoir heat- transfer area grew from 8000 to 50 000 m2 and reservoir fracture volume grew from 11...

215

Geothermal: Sponsored by OSTI -- Two-Stage, Integrated, Geothermal...  

Office of Scientific and Technical Information (OSTI)

Two-Stage, Integrated, Geothermal-CO2 Storage Reservoirs: An Approach for Sustainable Energy Production, CO2-Sequestration Security, and Reduced Environmental Risk Geothermal...

216

Modeling shear failure and permeability enhancement due to coupled Thermal-Hydrological-Mechanical processes in Enhanced Geothermal Reservoirs  

SciTech Connect (OSTI)

The connectivity and accessible surface area of flowing fractures, whether natural or man-made, is possibly the single most important factor, after temperature, which determines the feasibility of an Enhanced Geothermal System (EGS). Rock deformation and in-situ stress changes induced by injected fluids can lead to shear failure on preexisting fractures which can generate microseismic events, and also enhance the permeability and accessible surface area of the geothermal formation. Hence, the ability to accurately model the coupled thermal-hydrologic-mechanical (THM) processes in fractured geological formations is critical in effective EGS reservoir development and management strategies. The locations of the microseismic events can serve as indicators of the zones of enhanced permeability, thus providing vital information for verification of the coupled THM models. We will describe a general purpose computational code, FEHM, developed for this purpose, that models coupled THM processes during multiphase fluid flow and transport in fractured porous media. The code incorporates several models of fracture aperture and stress behavior combined with permeability relationships. We provide field scale examples of applications to geothermal systems to demonstrate the utility of the method.

Kelkar, Sharad [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

217

Evaluation of Emerging Technology for Geothermal Drilling and...  

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

Technology for Geothermal Drilling and Logging Applications Technology Development and Field Trials of EGS Drilling Systems GEA Geothermal Summit Presentation Lauren Boyd...

218

Comprehensive Evaluation of the Geothermal Potential within the Pyramid Lake Paiute Reservation  

Broader source: Energy.gov [DOE]

Comprehensive Evaluation of the Geothermal Potential within the Pyramid Lake Paiute Reservationpresentation at the April 2013 peer review meeting held in Denver, Colorado.

219

Frio sandstone reservoirs in the deep subsurface along the Texas Gulf Coast: their potential for production of geopressured geothermal energy  

SciTech Connect (OSTI)

Detailed geological, geophysical, and engineering studies conducted on the Frio Formation have delineated a geothermal test well site in the Austin Bayou Prospect which extends over an area of 60 square miles. A total of 800 to 900 feet of sandstone will occur between the depths of 13,500 and 16,500 feet. At leat 30 percent of the sand will have core permeabilities of 20 to 60 millidarcys. Temperature at the top of the sandstone section will be 300/sup 0/F. Water, produced at a rate of 20,000 to 40,000 barrels per day, will probably have to be disposed of by injection into shallower sandstone reservoirs. More than 10 billion barrels of water are in place in these sandstone reservoirs of the Austin Bayou Prospect; there should be approximately 400 billion cubic feet of methane in solution in this water. Only 10 percent of the water and methane (1 billion barrels of water and 40 billion cubic feet of methane) will be produced without reinjection of the waste water into the producing formation. Reservoir simulation studies indicate that 90 percent of the methane can be produced with reinjection. 106 figures.

Bebout, D.G.; Loucks, R.G.; Gregory, A.R.

1983-01-01T23:59:59.000Z

220

Earth Tidal Analysis At Raft River Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Earth Tidal Analysis At Raft River Geothermal Earth Tidal Analysis At Raft River Geothermal Area(1980) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the reservoir response to tidal and barometric effects Notes Porosity-total compressibility product evaluation based on tidal strain response compares favorably with results based on conventional pumping techniques. Analysis of reservoir response to barometric loading using Auto Regressive Integrated Moving Average (ARIMA) stochastic modeling appears also to have potential use for the evaluation of reservoir parameters. References Hanson, J. M. (29 May 1980) Reservoir response to tidal and barometric effects

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


221

Two-Stage, Integrated, Geothermal-CO2 Storage Reservoirs: An Approach for Sustainable Energy Production, CO2-Sequestration Security, and Reduced Environmental Risk  

SciTech Connect (OSTI)

We introduce a hybrid two-stage energy-recovery approach to sequester CO{sub 2} and produce geothermal energy at low environmental risk and low cost by integrating geothermal production with CO{sub 2} capture and sequestration (CCS) in saline, sedimentary formations. Our approach combines the benefits of the approach proposed by Buscheck et al. (2011b), which uses brine as the working fluid, with those of the approach first suggested by Brown (2000) and analyzed by Pruess (2006), using CO{sub 2} as the working fluid, and then extended to saline-formation CCS by Randolph and Saar (2011a). During stage one of our hybrid approach, formation brine, which is extracted to provide pressure relief for CO{sub 2} injection, is the working fluid for energy recovery. Produced brine is applied to a consumptive beneficial use: feedstock for fresh water production through desalination, saline cooling water, or make-up water to be injected into a neighboring reservoir operation, such as in Enhanced Geothermal Systems (EGS), where there is often a shortage of a working fluid. For stage one, it is important to find economically feasible disposition options to reduce the volume of brine requiring reinjection in the integrated geothermal-CCS reservoir (Buscheck et al. 2012a). During stage two, which begins as CO{sub 2} reaches the production wells; coproduced brine and CO{sub 2} are the working fluids. We present preliminary reservoir engineering analyses of this approach, using a simple conceptual model of a homogeneous, permeable CO{sub 2} storage formation/geothermal reservoir, bounded by relatively impermeable sealing units. We assess both the CO{sub 2} sequestration capacity and geothermal energy production potential as a function of well spacing between CO{sub 2} injectors and brine/CO{sub 2} producers for various well patterns and for a range of subsurface conditions.

Buscheck, T A; Chen, M; Sun, Y; Hao, Y; Elliot, T R

2012-02-02T23:59:59.000Z

222

MASSIVELY PARALLEL FULLY COUPLED IMPLICIT MODELING OF COUPLED THERMAL-HYDROLOGICAL-MECHANICAL PROCESSES FOR ENHANCED GEOTHERMAL SYSTEM RESERVOIRS  

SciTech Connect (OSTI)

Development of enhanced geothermal systems (EGS) will require creation of a reservoir of sufficient volume to enable commercial-scale heat transfer from the reservoir rocks to the working fluid. A key assumption associated with reservoir creation/stimulation is that sufficient rock volumes can be hydraulically fractured via both tensile and shear failure, and more importantly by reactivation of naturally existing fractures (by shearing) to create the reservoir. The advancement of EGS greatly depends on our understanding of the dynamics of the intimately coupled rock-fracture-fluid system and our ability to reliably predict how reservoirs behave under stimulation and production. In order to increase our understanding of how reservoirs behave under these conditions, we have developed a physics-based rock deformation and fracture propagation simulator by coupling a discrete element model (DEM) for fracturing with a continuum multiphase flow and heat transport model. In DEM simulations, solid rock is represented by a network of discrete elements (often referred as particles) connected by various types of mechanical bonds such as springs, elastic beams or bonds that have more complex properties (such as stress-dependent elastic constants). Fracturing is represented explicitly as broken bonds (microcracks), which form and coalesce into macroscopic fractures when external load is applied. DEM models have been applied to a very wide range of fracturing processes from the molecular scale (where thermal fluctuations play an important role) to scales on the order of 1 km or greater. In this approach, the continuum flow and heat transport equations are solved on an underlying fixed finite element grid with evolving porosity and permeability for each grid cell that depends on the local structure of the discrete element network (such as DEM particle density). The fluid pressure gradient exerts forces on individual elements of the DEM network, which therefore deforms and fractures. Such deformation/fracturing in turn changes the permeability, which again changes the evolution of fluid pressure, coupling the two phenomena. The intimate coupling between fracturing and fluid flow makes the meso-scale DEM simulations necessary, as these methods have substantial advantages over conventional continuum mechanical models of elastic rock deformation. The challenges that must be overcome to simulate EGS reservoir stimulation, preliminary results, progress to date and near future research directions and opportunities will be discussed.

Robert Podgorney; Hai Huang; Derek Gaston

2010-02-01T23:59:59.000Z

223

Geothermal Evaluation of The Hosston Formation Lackland Air Force Base, San Antonio, Texas Phase II Report  

SciTech Connect (OSTI)

This report summarizes the results of a phased program to test the geothermal characteristics of the Hosston Formation at Lackland Air Force Base, San Antonio, Texas. The geothermal resource evaluation was made possible through drilling and preliminary testing of a large diameter well, Lackland AFB No.1, at the south portion of the base. Phase I of the program had 3 major components: (1) compilation and interpretation of surface and subsurface geologic data to site the well; (2) design of the well; and (3) permitting the well. Phase II consisted of well drilling and preliminary development. The goal of the program was to identify water temperature, water quality, and productivity characteristics of the Hosston aquifer, which preliminary studies suggested might be favorable for direct applications on the base. Results reported herein suggest that heat pumps or other engineering alternatives might be needed for such applications. Results of the well drilling give data on water productivity, quality and temperature. Air-lift testing shows that, although the well does not flow to surface, good artesian pressure exists. Water quality appears acceptable, with about 2200 parts per million total dissolved solids. Equilibrated reservoir temperatures appear to be slightly less than 108 F (42 C).

Zeisloft, Jon; Foley, Duncan

1984-05-30T23:59:59.000Z

224

Fracture Characterization in Enhanced Geothermal Systems by Wellbore...  

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

Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir...

225

Geothermal Literature Review (Majer, 2003) | Open Energy Information  

Open Energy Info (EERE)

Geothermal Literature Review (Majer, 2003) Geothermal Literature Review (Majer, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review (Majer, 2003) Exploration Activity Details Location Unspecified Exploration Technique Geothermal Literature Review Activity Date Usefulness not indicated DOE-funding Unknown Notes The goal of this work is to evaluate the most promising methods and approaches that may be used for improved geothermal exploration and reservoir assessment. It is not a comprehensive review of all seismic methods used to date in geothermal environments. This work was motivated by a need to assess current and developing seismic technology that if applied in geothermal cases may greatly improve the chances for locating new geothermal resources and/or improve assessment of current ones.

226

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.

227

Evaluation of the St. Lucia geothermal resource: macroeconomic models  

SciTech Connect (OSTI)

A macroeconometric model describing the St. Lucian economy was developed using 1970 to 1982 economic data. Results of macroeconometric forecasts for the period 1983 through 1985 show an increase in gross domestic product (GDP) for 1983 and 1984 with a decline in 1985. The rate of population growth is expected to exceed GDP growth so that a small decline in per capita GDP will occur. We forecast that garment exports will increase, providing needed employment and foreign exchange. To obtain a longer-term but more general outlook on St. Lucia's economy, and to evaluate the benefit of geothermal energy development, we applied a nonlinear programming model. The model maximizes discounted cumulative consumption.

Burris, A.E.; Trocki, L.K.; Yeamans, M.K.; Kolstad, C.D.

1984-08-01T23:59:59.000Z

228

BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL SYSTEM  

Open Energy Info (EERE)

BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL SYSTEM BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL SYSTEM RESERVOIR DEVELOPMENT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL SYSTEM RESERVOIR DEVELOPMENT Details Activities (1) Areas (1) Regions (0) Abstract: Thermal stimulation can be utilized to precondition a well to optimize fracturing and production during Enhanced Geothermal System (EGS) reservoir development. A finite element model was developed for the fully coupled processes consisting of: thermoporoelastic deformation, hydraulic conduction, thermal osmosis, heat conduction, pressure thermal effect, and the interconvertibility of mechanical and thermal energy. The model has

229

Testing geopressured geothermal reservoirs in existing wells. Wells of Opportunity Program final contract report, 1980-1981  

SciTech Connect (OSTI)

The geopressured-geothermal candidates for the Wells of Opportunity program were located by the screening of published information on oil industry activity and through direct contact with the oil and gas operators. This process resulted in the recommendation to the DOE of 33 candidate wells for the program. Seven of the 33 recommended wells were accepted for testing. Of these seven wells, six were actually tested. The first well, the No. 1 Kennedy, was acquired but not tested. The seventh well, the No. 1 Godchaux, was abandoned due to mechanical problems during re-entry. The well search activities, which culminated in the acceptance by the DOE of 7 recommended wells, were substantial. A total of 90,270 well reports were reviewed, leading to 1990 wells selected for thorough geological analysis. All of the reservoirs tested in this program have been restricted by one or more faults or permeability barriers. A comprehensive discussion of test results is presented.

Not Available

1982-01-01T23:59:59.000Z

230

Shear-wave splitting and reservoir crack characterization: the Coso  

Open Energy Info (EERE)

Shear-wave splitting and reservoir crack characterization: the Coso Shear-wave splitting and reservoir crack characterization: the Coso geothermal field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Shear-wave splitting and reservoir crack characterization: the Coso geothermal field Details Activities (1) Areas (1) Regions (0) Abstract: This paper aims to improve current understanding of the subsurface fracture system in the Coso geothermal field, located in east-central California. The Coso reservoir is in active economic development, so that knowledge of the subsurface fracture system is of vital importance for an accurate evaluation of its geothermal potential and day-to-day production. To detect the geometry and density of fracture systems we applied the shear-wave splitting technique to a large number of

231

Advances In The Past 20 Years- Geochemistry In Geothermal Exploration  

Open Energy Info (EERE)

Advances In The Past 20 Years- Geochemistry In Geothermal Exploration Advances In The Past 20 Years- Geochemistry In Geothermal Exploration Resource Evaluation And Reservoir Management Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Advances In The Past 20 Years- Geochemistry In Geothermal Exploration Resource Evaluation And Reservoir Management Details Activities (8) Areas (2) Regions (0) Abstract: Most theoretical fundamentals of geothermal geochemistry were established by the mid-1980s, as were numerous practical applications of these fundamentals to geothermal resource evaluation and management. Since that time, these geeochmical tools have been refined to various degrees. Noted developments include: widespread use of high-performance liquid chromatography (HPLC); advances in spectral analysis; new and refined

232

Preliminary study of discharge characteristics of slim holes compared to production wells in liquid-dominated geothermal reservoirs  

SciTech Connect (OSTI)

There is current interest in using slim holes for geothermal exploration and reservoir assessment. A major question that must be addressed is whether results from flow or injection testing of slim holes can be scaled to predict large diameter production well performance. This brief report describes a preliminary examination of this question from a purely theoretical point of view. The WELBOR computer program was used to perform a series of calculations of the steady flow of fluid up geothermal boreholes of various diameters at various discharge rates. Starting with prescribed bottomhole conditions (pressure, enthalpy), the WELBOR code integrates the equations expressing conservation of mass, momentum and energy (together with fluid constitutive properties obtained from the steam tables) upwards towards the wellhead using numerical techniques. This results in computed profiles of conditions (pressure, temperature, steam volume fraction, etc.) as functions of depth within the flowing well, and also in a forecast of wellhead conditions (pressure, temperature, enthalpy, etc.). From these results, scaling rules are developed and discussed.

Pritchett, J.W. [S-Cubed, La Jolla, CA (United States)

1993-06-01T23:59:59.000Z

233

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.

234

Flint Geothermal Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Flint Geothermal Geothermal Area Flint Geothermal Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Flint Geothermal Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: Colorado Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

235

Resource investigation of low- and moderate-temperature geothermal areas in San Bernardino, California. Part of the third year report, 1980-81, of the US Department of Energy-California State-Coupled Program for Reservoir Assessment and Confirmation  

SciTech Connect (OSTI)

Ninety-seven geothermal wells and springs were identified and plotted on a compiled geologic map of the 40-square-mile study area. These wells and springs were concentrated in three distinguishable resource areas: Arrowhead Hot Springs; South San Bernardino; and Harlem Hot Springs - in each of which detailed geophysical, geochemical, and geological surveys were conducted. The Arrowhead Hot Springs geothermal area lies just north of the City of San Bernardino in the San Bernardino Mountains astride a shear zone (offshoot of the San Andreas fault) in pre-Cambrian gneiss and schist. The Harlem Hot Springs geothermal area, on the east side of the City, and the south San Bernardino geothermal area, on the south side, have geothermal reservoirs in Quaternary alluvial material which overlies a moderately deep sedimentary basin bound on the southwest by the San Jacinto fault (a ground water barrier). Geothermometry calculations suggest that the Arrowhead Hot Springs geothermal area, with a maximum reservoir temperature of 142/sup 0/C, may have the highest maximum reservoir temperature of the three geothermal areas. The maximum temperature recorded by CDMG in the south San Bernardino geothermal area was 56/sup 0/C from an artesian well, while the maximum temperature recorded in the Harlem Hot Springs geothermal area was 49.5/sup 0/C at 174 meters (570 feet) in an abandoned water well. The geophysical and geological surveys delineated fault traces in association with all three of the designated geothermal areas.

Youngs, L.G.; Bezore, S.P.; Chapman, R.H.; Chase, G.W.

1981-08-01T23:59:59.000Z

236

Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot  

Open Energy Info (EERE)

Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Springs: KGRA, China Lake, CA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Evaluation of Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Coso Hot Springs: KGRA, China Lake, CA Details Activities (1) Areas (1) Regions (0) Abstract: The well, Coso Geothermal Exploratory Hole No. 1 (CGEH-1) was drilled at the China Lake Naval Weapons Center. Drilling was started on 2 September 1977, and the well completed on 1 December 1977 to 4845 ft. The well is an exploratory hole to determine geological and hydrothermal characteristics of the Coso Hot Springs KGRA (Known Geothermal Resource Area). During drilling, numerous geophysical and temperature surveys were performed to evaluate the geological characteristics of CGEH-1. LBL

237

Evaluation of field development plans using 3-D reservoir modelling  

SciTech Connect (OSTI)

Three-dimensional reservoir modelling has become an accepted tool in reservoir description and is used for various purposes, such as reservoir performance prediction or integration and visualisation of data. In this case study, a small Northern North Sea turbiditic reservoir was to be developed with a line drive strategy utilising a series of horizontal producer and injector pairs, oriented north-south. This development plan was to be evaluated and the expected outcome of the wells was to be assessed and risked. Detailed analyses of core, well log and analogue data has led to the development of two geological {open_quotes}end member{close_quotes} scenarios. Both scenarios have been stochastically modelled using the Sequential Indicator Simulation method. The resulting equiprobable realisations have been subjected to detailed statistical well placement optimisation techniques. Based upon bivariate statistical evaluation of more than 1000 numerical well trajectories for each of the two scenarios, it was found that the wells inclinations and lengths had a great impact on the wells success, whereas the azimuth was found to have only a minor impact. After integration of the above results, the actual well paths were redesigned to meet external drilling constraints, resulting in substantial reductions in drilling time and costs.

Seifert, D.; Lewis, J.J.M. [Heriot-Watt Univ., Edinburgh (United Kingdom); Newbery, J.D.H. [Conoco, UK Ltd., Aberdeen (United Kingdom)] [and others

1997-08-01T23:59:59.000Z

238

Advancing reactive tracer methods for measuring thermal evolution in CO2-and water-based geothermal reservoirs  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop reactive tracer method for monitoring thermal drawdown in enhanced geothermal systems.

239

Conceptual Model At Raft River Geothermal Area (1976) | Open Energy  

Open Energy Info (EERE)

6) 6) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Conceptual Model Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine productive zones in the reservoir Notes Borehole geophysics techniques were used in evaluating the Raft River geothermal reservoir to establish a viable model for the system. The assumed model for the hot water 1450C reservoir was a zone of higher conductivity, increased porosity, decreased density, and lower sonic velocity. References Applegate, J.K.; Donaldson, P.R.; Kinkley, D.L.; Wallace, T.L. (1 January 1976) Borehole geophysics evaluation of the Raft River geothermal reservoir Retrieved from "http://en.openei.org/w/index.php?title=Conceptual_Model_At_Raft_River_Geothermal_Area_(1976)&oldid=473821

240

Evaluation of geothermal energy in desalination by vacuum membrane distillation  

Science Journals Connector (OSTI)

This paper presents the energy evaluation of the cross-flow vacuum membrane distillation (VMD) for three types of lab-fabricated polyvinylidene fluoride (PVDF) membranes and the commercial Westran S PVDF membrane. Membranes with the effective area 23.5cm2 are tested with distilled water and geothermal water as the feed solutions. Results show that the membrane porosity controlled the flux through the fabricated membranes and the commercial membrane. The commercial membrane with porosity of approximately 76.5%, which was the most porous among the tested membranes, gave the highest flux at 9.28kg/m2 h under the optimum conditions of 33.2L/h feed flow rate and 30kPa downstream pressure. The corresponding specific energy consumption was 66.03kW/kgh?1 when distilled water was examined. Heating energy of 8789kW/kgh?1, which is approximately 95% of the total energy consumption, could be saved when the warm geothermal water is fed directly into the VMD system. The water produced meets the drinking water quality with the TDS varying between 102 and 119ppm, thus the geothermal water desalination using the VMD system to produce the drinking water is satisfactory. An economic analysis for a 20,000m3/d VMD desalination plant finds that the water production costs are $0.50/m3 and $1.22/m3 respectively for the plant operated with and without geothermal energy (GE). Compare to the plant without GE utilisation, the water production costs of the plant operated with GE are less than $0.50/m3 that is at least $0.72/m3 or approximately 59% in cost saving when the water fluxes are larger than 6.6kg/m2h. The specific membrane cost reduced from $0.058/m3 to $0.035/m3 when the membrane life extended from 3 to 5years.

Rosalam Sarbatly; Chel-Ken Chiam

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Applications of Geothermal Energy  

Science Journals Connector (OSTI)

The distinction between near surface and deep geothermal systems follows from the different depth levels of the geothermal reservoirs and different techniques of utilization (Fig ... smooth. Distinguishing the tw...

Ingrid Stober; Kurt Bucher

2013-01-01T23:59:59.000Z

242

Hydraulic stimulation of geothermal reservoirs: fluid flow, electric potential and microseismicity relationships  

Science Journals Connector (OSTI)

......represents the reservoir relaxation process occurring around the openhole...Li (1987), it is a slow process and, therefore, it may not...to observe fluid diffusion processes is useful for the understanding...Abstracts of Papers , EAGE-56th Mtg. Tech. Exhib., I004. Li......

Mathieu Darnet; Guy Marquis; Pascal Sailhac

2006-07-01T23:59:59.000Z

243

Integrated Chemical Geothermometry System for Geothermal Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Develop practical and reliable system to predict geothermal reservoir temperatures from integrated chemical analyses of spring and well fluids.

244

Geothermal: Sponsored by OSTI -- Fracture Characterization in...  

Office of Scientific and Technical Information (OSTI)

Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log...

245

Rock Physics-Based Carbonate Reservoir Pore Type Evaluation by Combining Geological, Petrophysical and Seismic Data  

E-Print Network [OSTI]

model, similar to modern marine hydrological environments within carbonate islands. How to evaluate carbonate reservoir permeability heterogeneity from 3 D seismic data has been a dream for reservoir geoscientists, which is a key factor to optimize...

Dou, Qifeng

2012-07-16T23:59:59.000Z

246

Earth Tidal Analysis At Salton Sea Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

80) 80) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At Salton Sea Geothermal Area (1980) Exploration Activity Details Location Salton Sea Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the reservoir response to tidal and barometric effects Notes Porosity-total compressibility product evaluation based on tidal strain response compares favorably with results based on conventional pumping techniques. Analysis of reservoir response to barometric loading using Auto Regressive Integrated Moving Average (ARIMA) stochastic modeling appears also to have potential use for the evaluation of reservoir parameters.

247

Geothermal energy market study on the Atlantic Coastal Plain: Ocean City, Maryland geothermal energy evaluation  

SciTech Connect (OSTI)

This report is one of a series of studies that have been made by the Applied Physics Laboratory, or its subcontractors, to examine the technical and economic feasibility of the utilization of geothermal energy at the request of potential users.

Schubert, C.E.

1981-08-01T23:59:59.000Z

248

An Evaluation Of Exploration Methods For Low-Temperature Geothermal...  

Open Energy Info (EERE)

Geothermal Systems In The Artesian-City Area, Idaho Authors E. M. Struhsacker, C. Smith and R. M. Capuano Published Journal Geological Society of America Bulletin, 1983 DOI...

249

NREL: Geothermal Technologies - News Release Archives  

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

1 1 August 1, 2011 Geothermal Electricity Technology Evaluation Model Webinar Materials Now Available This webinar provided an overview of the model and its use with an emphasis on how the model calculates the generation costs associated with exploration and confirmation activities, well field development, and reservoir definition. August 1, 2011 Blue Ribbon Panel Recommendations Report Available Earlier this spring, the U.S. Department of Energy's (DOE) Geothermal Technologies Program (GTP) assembled a panel of geothermal experts to identify the obstacles to geothermal energy growth and more. May 9, 2011 Department of Energy to Issue Funding Opportunity: Technology Advancement for Rapid Development of Geothermal Resources in the U.S. In early June 2011, the U.S. Department of Energy's Geothermal Technologies

250

A Resource Assessment Of Geothermal Energy Resources For Converting Deep Gas Wells In Carbonate Strata Into Geothermal Extraction Wells: A Permian Basin Evaluation  

SciTech Connect (OSTI)

Previously conducted preliminary investigations within the deep Delaware and Val Verde sub-basins of the Permian Basin complex documented bottom hole temperatures from oil and gas wells that reach the 120-180C temperature range, and occasionally beyond. With large abundances of subsurface brine water, and known porosity and permeability, the deep carbonate strata of the region possess a good potential for future geothermal power development. This work was designed as a 3-year project to investigate a new, undeveloped geographic region for establishing geothermal energy production focused on electric power generation. Identifying optimum geologic and geographic sites for converting depleted deep gas wells and fields within a carbonate environment into geothermal energy extraction wells was part of the project goals. The importance of this work was to affect the three factors limiting the expansion of geothermal development: distribution, field size and accompanying resource availability, and cost. Historically, power production from geothermal energy has been relegated to shallow heat plumes near active volcanic or geyser activity, or in areas where volcanic rocks still retain heat from their formation. Thus geothermal development is spatially variable and site specific. Additionally, existing geothermal fields are only a few 10s of square km in size, controlled by the extent of the heat plume and the availability of water for heat movement. This plume radiates heat both vertically as well as laterally into the enclosing country rock. Heat withdrawal at too rapid a rate eventually results in a decrease in electrical power generation as the thermal energy is mined. The depletion rate of subsurface heat directly controls the lifetime of geothermal energy production. Finally, the cost of developing deep (greater than 4 km) reservoirs of geothermal energy is perceived as being too costly to justify corporate investment. Thus further development opportunities for geothermal resources have been hindered. To increase the effective regional implementation of geothermal resources as an energy source for power production requires meeting several objectives. These include: 1) Expand (oil and gas as well as geothermal) industry awareness of an untapped source of geothermal energy within deep permeable strata of sedimentary basins; 2) Identify and target specific geographic areas within sedimentary basins where deeper heat sources can be developed; 3) Increase future geothermal field size from 10 km2 to many 100s km2 or greater; and 4) Increase the productive depth range for economic geothermal energy extraction below the current 4 km limit by converting deep depleted and abandoned gas wells and fields into geothermal energy extraction wells. The first year of the proposed 3-year resource assessment covered an eight county region within the Delaware and Val Verde Basins of West Texas. This project has developed databases in Excel spreadsheet form that list over 8,000 temperature-depth recordings. These recordings come from header information listed on electric well logs recordings from various shallow to deep wells that were drilled for oil and gas exploration and production. The temperature-depth data is uncorrected and thus provides the lower temperature that is be expected to be encountered within the formation associated with the temperature-depth recording. Numerous graphs were developed from the data, all of which suggest that a log-normal solution for the thermal gradient is more descriptive of the data than a linear solution. A discussion of these plots and equations are presented within the narrative. Data was acquired that enable the determination of brine salinity versus brine density with the Permian Basin. A discussion on possible limestone and dolostone thermal conductivity parameters is presented with the purpose of assisting in determining heat flow and reservoir heat content for energy extraction. Subsurface maps of temperature either at a constant depth or within a target geothermal reservoir are discusse

Erdlac, Richard J., Jr.

2006-10-12T23:59:59.000Z

251

OPTIMIZATION OF INJECTION INTO VAPOR-DOMINATED GEOTHERMAL  

E-Print Network [OSTI]

given by U.S. Department of Energy, Geothermal Division. #12;vii Table of Contents ABSTRACTOPTIMIZATION OF INJECTION INTO VAPOR-DOMINATED GEOTHERMAL RESERVOIRS CONSIDERING ADSORPTION governing the behavior of vapor- dominated geothermal reservoirs. These mechanisms affect both

Stanford University

252

Stress and Permeability Heterogeneity within the Dixie Valley Geothermal Reservoir: Recent Results from Well 82-5  

SciTech Connect (OSTI)

We collected borehole televiewer, temperature and flowmeter logs and conducted a hydraulic fracturing test in a well (82-5) that penetrated the SFZ within the known boundaries of the geothermal field but which failed to encounter significant permeability. Although stuck drill pipe prevented direct access to the SFZ, borehole breakouts and cooling cracks indicated a {approximately}90 degree rotation in the azimuth of the least horizontal principal stress (Shmin) in well 82-5 at about 2.7 km depth. This rotation, together with the low (Shmin) magnitude measured at 2.5 km depth in well 82-5, is most readily explained through the occurrences of one or more normal faulting earthquakes in the hanging wall of the SFZ in the northern part of the reservoir. The orientation of (Shmin) below 2.7 km (i.e., {approximately}20 to 50 m above the top of the SFZ) is such that both the overall SFZ and natural fractures directly above the SFZ are optimally oriented for normal faulting failure. If these fracture and stress orient ations persist into the SFZ itself, then the existence of a local stress relief zone (i.e., anormalously high (Shmin) magnitude) is the most likely explanation for the very low fault zone permeability encountered in well 82-5.

S. H. Hickman; M. D. Zoback; C. A. Barton; R. Benoit; J. Svitek; R. Summers

1999-12-01T23:59:59.000Z

253

Evaluation of Oil-Industry Stimulation Practices for Engineered Geothermal Systems  

SciTech Connect (OSTI)

Geothermal energy extraction is typically achieved by use of long open-hole intervals in an attempt to connect the well with the greatest possible rock mass. This presents a problem for the development of Enhanced (Engineered) Geothermal Systems (EGS), owing to the challenge of obtaining uniform stimulation throughout the open-hole interval. Fluids are often injected in only a fraction of that interval, reducing heat transfer efficiency and increasing energy cost. Pinnacle Technologies, Inc. and GeothermEx, Inc. evaluated a variety of techniques and methods that are commonly used for hydraulic fracturing of oil and gas wells to increase and evaluate stimulation effectiveness in EGS wells. Headed by Leen Weijers, formerly Manager of Technical Development at Pinnacle Technologies, Inc., the project ran from August 1, 2004 to July 31, 2006 in two one-year periods to address the following tasks and milestones: 1) Analyze stimulation results from the closest oil-field equivalents for EGS applications in the United States (e.g., the Barnett Shale in North Texas) (section 3 on page 8). Pinnacle Technologies, Inc. has collected fracture growth data from thousands of stimulations (section 3.1 on page 12). This data was further evaluated in the context of: a) Identifying techniques best suited to developing a stimulated EGS fracture network (section 3.2 on page 29), and b) quantifying the growth of the network under various conditions to develop a calibrated model for fracture network growth (section 3.3 on page 30). The developed model can be used to design optimized EGS fracture networks that maximize contact with the heat source and minimize short-circuiting (section 3.4 on page 38). 2) Evaluate methods used in oil field applications to improve fluid diversion and penetration and determine their applicability to EGS (section 4 on page 50). These methods include, but are not limited to: a) Stimulation strategies (propped fracturing versus water fracturing versus injecting fluid below fracturing gradients) (section 4.1 on page 50); b) zonal isolation methods (by use of perforated casing or packers) (section 4.2 on page 57); c) fracture re-orientation and fracture network growth techniques (e.g., by use of alternating high- and low-rate injections) (section 4.4 on page 74); and d) fluid diversion methods (by use of the SurgiFrac technique, the StimGun perforation technique, or stress shadowing). This project task is to be completed in the first project year, enabling the most promising techniques to be field tested and evaluated in the second project year. 3) Study the applicability of the methods listed above by utilizing several techniques (section 5 on page 75) including, but not limited to: a) Hydraulic Impedance Testing (HIT) to determine the location of open hydraulic fractures along a open-hole interval; b) pressure transient testing to determine reservoir permeability, pore pressure, and closure stress; and c) treatment well tilt mapping or microseismic mapping to evaluate fracture coverage. These techniques were reviewed for their potential application for EGS in the first project year (section 5.1 on page 75). This study also includes further analysis of any field testing that will be conducted in the Desert Peak area in Nevada for ORMAT Nevada, Inc. (section 5.2 on page 86), with the aim to close the loop to provide reliable calibrated fracture model results. Developed through its hydraulic fracture consulting business, techniques of Pinnacle Technologies, Inc. for stimulating and analyzing fracture growth have helped the oil and gas industry to improve hydraulic fracturing from both a technical and economic perspective. In addition to more than 30 years of experience in the development of geothermal energy for commercial power generation throughout the world, GeothermEx, Inc. brings to the project: 1) Detailed information about specific developed and potential EGS reservoirs, 2) experience with geothermal well design, completion, and testing practices, and 3) a direct connection to the Desert Peak EGS project.

Peter Van Dyke; Leen Weijers; Ann Robertson-Tait; Norm Warpinski; Mike Mayerhofer; Bill Minner; Craig Cipolla

2007-10-17T23:59:59.000Z

254

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

E-Print Network [OSTI]

, through mud temperatures. In this study formation temperatures of the five geothermal wells in Germencik and analyze the formation temperatures at geothermal wells. For the methods Curve fitting, Horner plot

Stanford University

255

PROCEEDINGS, Thirty-Seventh Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 30 -February 1, 2012  

E-Print Network [OSTI]

: Organic Rankine Cycle) with maximal installed net capacity of 1.5MWe (Figure 1). Several deep geothermal

Boyer, Edmond

256

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

E-Print Network [OSTI]

for the geothermal district heating (GDH) of approximately 150 000 dwellings. As of late 2010, thirty four GDH

Paris-Sud XI, Université de

257

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

, Stanford, California, February 1-3, 2010 SGP-TR-188 THE SUPPRESSION OF SONIC SHOCKS IN GEOTHERMAL WELLS

Stanford University

258

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

of geothermal wells that are effectively cemented and durable poses a significant operational challenge used is critical to the long-term durability of a geothermal well. Conventional cement systems are high systems, they typically fail. More ductile cement systems have been introduced and applied in geothermal

Stanford University

259

Enhanced Geothermal Systems (EGS) | Open Energy Information  

Open Energy Info (EERE)

Enhanced Geothermal Systems (EGS) Enhanced Geothermal Systems (EGS) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Enhanced Geothermal Systems (EGS) Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps EGS Links Related documents and websites DOE EGS Technical Roadmap DOE EGS Systems Demonstration Projects How EGS Works (Animation) EGS Development (Animation) EGS Schematic.jpg ] Dictionary.png Enhanced Geothermal Systems: Enhanced Geothermal Systems (EGS) are human engineered hydrothermal reservoirs developed for commercial use as an alternative to naturally

260

STATE-OF-THE-ART OF MODELS FOR GEOTHERMAL RECOVERY PROCESSES  

E-Print Network [OSTI]

Recent interest in geothermal energy development hasassociated with a geothermal energy reservoir are describeddevelopment and use of geothermal energy. Many ex- periments

Tsang, C.F.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Factors controlling reservoir quality in tertiary sandstones and their significance to geopressured geothermal production. Annual report, May 1, 1979-May 31, 1980  

SciTech Connect (OSTI)

Differing extents of diagenetic modification is the factor primarily responsible for contrasting regional reservoir quality of Tertiary sandstones from the Upper and Lower Texas Gulf Coast. Detailed comparison of Frio sandstones from the Chocolate Bayou/Danbury Dome area, Brazoria County, and Vicksburg sandstones from the McAllen Ranch Field area, Hidalgo County, reveals that extent of diagenetic modification is most strongly influenced by (1) detrital mineralogy and (2) regional geothermal gradients. Vicksburg sandstones from the McAllen Ranch Field area are less stable, chemically and mechanically, than Frio sandstones from the Chocolate Bayou/Danbury dome area. Vicksburg sandstones are mineralogically immature and contain greater proportions of feldspars and rock fragments than do Frio sandstones. Thr reactive detrital assemblage of Vicksubrg sandstones is highly susceptible to diagenetic modification. Susceptibility is enhanced by higher than normal geothermal gradients in the McAllen Ranch Field area. Thus, consolidation of Vicksburg sandstones began at shallower depth of burial and precipitation of authigenic phases (especially calcite) was more pervasive than in Frio sandstones. Moreover, the late-stage episode of ferroan calcite precipitation that occluded most secondary porosity in Vicksburg sandstones did not occur significantly in Frio sandstones. Therefore, regional reservoir quality of Frio sandstones from Brazoria County is far better than that characterizing Vicksburg sandstones from Hidalgo County, especially at depths suitable for geopressured geothermal energy production.

Loucks, R.G.; Richmann, D.L.; Milliken, K.L.

1980-07-01T23:59:59.000Z

262

Geophysical Method At Raft River Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Geophysical Method At Raft River Geothermal Area (1977) Geophysical Method At Raft River Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geophysical Method At Raft River Geothermal Area (1977) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Geophysical Techniques Activity Date 1977 Usefulness not indicated DOE-funding Unknown Notes Borehole geophysics were completed at the Raft River valley, Idaho. References Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace, T.L. (1 February 1977) Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Retrieved from "http://en.openei.org/w/index.php?title=Geophysical_Method_At_Raft_River_Geothermal_Area_(1977)&oldid=594349" Category: Exploration Activities

263

Stanford Geothermal Program Tnterdisciplinary Research  

E-Print Network [OSTI]

Stanford Geothermal Program Tnterdisciplinary Research in Engineering and Earth Sciences Stanford University Stanford, California A LABORATORY MODEL OF STWLATED GEOTHERMAL RESERVOIRS by A. Hunsbedt P. Kruger created by artificial stimulation of geothermal reservoirs has been con- structed. The model has been used

Stanford University

264

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

E-Print Network [OSTI]

-mail: hector.carlos.pulido@pemex.com ABSTRACT Complex reservoir geometries can influence the results obtained

Stanford University

265

The Cerro Prieto IV (Mexico) geothermal reservoir: Pre-exploitation thermodynamic conditions and main processes related to exploitation (20002005)  

Science Journals Connector (OSTI)

The Cerro Prieto IV (CP IV) reservoir, located in the northeastern part of the Cerro Prieto (Mexico) geothermal field, was studied in order to define its pre-exploitation conditions and initial (20002005) response to exploitation. Bottomhole thermodynamic conditions were estimated by modeling heat and fluid flows using the WELLSIM program and well production data. Produced fluid chemical and isotopic data were also analyzed to investigate characteristic patterns of behavior over time, which were then compared against simulation results to obtain a conceptual model of the CP IV reservoir. According to the proposed model, two zones in the reservoir separated by Fault H and producing fluids of different characteristics were identified under pre-exploitation conditions. Wells in the area to the east-southeast (south block) produce very high-enthalpy fluids (?2000kJ/kg), with very low chloride (?7000mg/kg) and high CO2 (>6 molar) and ?D (wells toward the west-northwest (north block) show moderate-enthalpy fluids (14001800kJ/kg), with high chloride (?12,000mg/kg) and relatively low CO2 (<6 molar) and ?D (reservoir processes associated with exploitation. Also, it was found that the dynamics of the CP IV reservoir is controlled by the Fault H system.

Vctor Manuel Arellano; Rosa Mara Barragn; Alfonso Aragn; Marco Helio Rodrguez; Alfredo Prez

2011-01-01T23:59:59.000Z

266

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

267

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

Tectonic br Setting Host br Rock br Age Host br Rock br Lithology Tectonic br Setting Host br Rock br Age Host br Rock br Lithology Mean br Capacity Mean br Reservoir br Temp Amedee Geothermal Area Amedee Geothermal Area Walker Lane Transition Zone Geothermal Region Extensional Tectonics Mesozoic granite granodiorite MW K Beowawe Hot Springs Geothermal Area Beowawe Hot Springs Geothermal Area Central Nevada Seismic Zone Geothermal Region Extensional Tectonics MW K Blue Mountain Geothermal Area Blue Mountain Geothermal Area Northwest Basin and Range Geothermal Region Extensional Tectonics triassic metasedimentary MW K Brady Hot Springs Geothermal Area Brady Hot Springs Geothermal Area Northwest Basin and Range Geothermal Region Extensional Tectonics MW Coso Geothermal Area Coso Geothermal Area Walker Lane Transition Zone

268

Retrospective Benefit-Cost Evaluation of U.S. DOE Geothermal Technologies R&D Program Investments  

Broader source: Energy.gov [DOE]

Retrospective Benefit-Cost Evaluation of U.S. DOE Geothermal Technologies R&D Program Investments: Impacts of a Cluster of Energy Technologies, August 2010.

269

STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY  

E-Print Network [OSTI]

STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY STANFORD, CALIFORNIA 34105 Stanford Geothermal, California SGP-TR-72 A RESERVOIR ENGINEERING ANALYSIS OF A VAPOR-DOMINATED GEOTHERMAL FIELD BY John Forrest Dee June 1983 Financial support was provided through the Stanford Geothermal Program under Department

Stanford University

270

STANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY  

E-Print Network [OSTI]

was provided through the Stanford Geothermal Program under Department of Energy Contract No. DE-AT03-80SF11459 heat sweep model for estimating energy recovery from fractured geothermal reservoirs based on earlySTANFORD GEOTHERMAL PROGRAM STANFORD UNIVERSITY Stanford Geothermal Program Interdisciplinary

Stanford University

271

Preliminary plan for the development of geothermal energy in the town of Gabbs, Nevada  

SciTech Connect (OSTI)

Characteristics of the site significant to the prospect for geothermal development are described, including: physiography, demography, economy, and the goals and objectives of the citizens as they relate to geothermal development. The geothermal resource evaluation is described, including the depth to reservoir, production rates of existing water wells, water quality, and the resource temperature. Uses of the energy that seem appropriate to the situation both now and in the foreseeable future at Gabbs are described. The essential institutional requirements for geothermal energy development are discussed, including the financial, environmental, legal, and regulatory requirements. The main resource, engineering and institutional considerations involved in a geothermal district heating system for Gabbs are summarized.

Not Available

1981-11-09T23:59:59.000Z

272

Experiment-Based Model for the Chemical Interactions between Geothermal  

Open Energy Info (EERE)

Experiment-Based Model for the Chemical Interactions between Geothermal Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Project Description The geochemical model will be developed on a foundation of both theory and measurements of chemical and physical interactions between minerals, rocks, scCO2 and water. An experimentally validated reservoir modeling capability is critically important for the evaluation of the scCO2-EGS concept, the adoption of which could significantly enhance energy production in the USA.

273

Geothermal Direct Use | Open Energy Information  

Open Energy Info (EERE)

Direct Use Direct Use Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF [edit] Geothermal Direct Use Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps Direct Use Links Related documents and websites EERE's Direct Use Report National Institute of Building Science's Whole Building Design Guide Policy Makers' Guidebook for Geothermal Heating and Cooling Dictionary.png Geothermal Direct Use: Low- to moderate-temperature water from geothermal reservoirs can be used to provide heat directly to buildings, or other applications that require

274

Evaluation of C-14 as a natural tracer for injected fluids at theAidlin sector of The Geysers geothermal system through modeling ofmineral-water-gas Reactions  

SciTech Connect (OSTI)

A reactive-transport model for 14C was developed to test its applicability to the Aidlin geothermal system. Using TOUGHREACT, we developed a 1-D grid to evaluate the effects of water injection and subsequent water-rock-gas interaction on the compositions of the produced fluids. A dual-permeability model of the fracture-matrix system was used to describe reaction-transport processes in which the permeability of the fractures is many orders of magnitude higher than that of the rock matrix. The geochemical system included the principal minerals (K-feldspar, plagioclase, calcite, silica polymorphs) of the metagraywackes that comprise the geothermal reservoir rocks. Initial simulation results predict that the gas-phase CO2 in the reservoir will become more enriched in 14C as air-equilibrated injectate water (with a modern carbon signature) is incorporated into the system, and that these changes will precede accompanying decreases in reservoir temperature. The effects of injection on 14C in the rock matrix will be lessened somewhat because of the dissolution of matrix calcite with ''dead'' carbon.

Dobson, Patrick; Sonnenthal, Eric; Lewicki, Jennifer; Kennedy, Mack

2006-06-01T23:59:59.000Z

275

Geothermal initiatives in Central America  

SciTech Connect (OSTI)

The US Agency for International Development is supporting a new project in energy and resources exploitation for Central America. One of the largest components of the project involves exploration and reservoir development investigations directed at enhancing the production of electricity from the region's geothermal resources. An assessment of the geothermal resources of Honduras is in progress, and interesting geothermal regions in the Guanacaste Province of Costa Rica are being explored. Well-logging activities are in progress in the production wells at the Miravalles geothermal field in Costa Rica, and preparations are being made for logging critical wells at Ahuachapan in El Salvador. A self-contained logging truck, complete with high-temperature logging cable and logging tools designed for geothermal service, is being fabricated and will be made available for dedicated use throughout Central America. Geochemical and isotopic analyses of water samples collected in Panama are being evaluated to select a high-priority geothermal site in that country. Application of low- and medium-enthalpy geothermal fluids for industrial and agricultural processes is being investigated in Guatemala.

Hanold, R.J.; Loose, V.W.; Laughlin, A.W.; Wade, P.E.

1986-01-01T23:59:59.000Z

276

PROCEEDINGS, Thirty-Fourth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 9-11, 2009  

E-Print Network [OSTI]

of 2015 nine units of geothermal electric power plants with a total capacity 450 MW are planned to be set of Mutnovsky volcano was studied by the method of numerical simulation. The distribution of temperature of natural heat carrier extraction to obtain geothermal energy are the subject of studying of mining thermal

Stanford University

277

Geothermal-reservoir engineering research at Stanford University. Second annual report, October 1, 1981-September 30, 1982  

SciTech Connect (OSTI)

Progress in the following tasks is discussed: heat extraction from hydrothermal reservoirs, noncondensable gas reservoir engineering, well test analysis and bench-scale experiments, DOE-ENEL Cooperative Research, Stanford-IIE Cooperative Research, and workshop and seminars. (MHR)

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

1982-09-01T23:59:59.000Z

278

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

279

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

280

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies |  

Open Energy Info (EERE)

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Details Activities (2) Areas (2) Regions (0) Abstract: Injection-backflow tracer testing on a single well is not a commonly used procedure for geothermal reservoir evaluation, and, consequently, there is little published information on the character or interpretation of tracer recovery curves. Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

BOREHOLE PRECONDITIONING OF GEOTHERMAL WELLS FOR ENHANCED GEOTHERMAL...  

Open Energy Info (EERE)

Abstract Thermal stimulation can be utilized to precondition a well to optimize fracturing and production during Enhanced Geothermal System (EGS) reservoir development. A...

282

Geothermal: Sponsored by OSTI -- Integrated, Geothermal-CO2 Storage...  

Office of Scientific and Technical Information (OSTI)

Integrated, Geothermal-CO2 Storage Reservoirs: Adaptable, Multi-Stage, Sustainable, Energy-Recovery Strategies that Reduce Carbon Intensity and Environmental Risk...

283

Geothermal resources in Southwestern Utah: gravity and magnetotelluric investigations.  

E-Print Network [OSTI]

??Recent geothermal studies on sedimentary basins in Western Utah suggest the possibility of significant geothermal reservoirs at depths of 3 to 5 km. This research (more)

Hardwick, Christian Lynn

2013-01-01T23:59:59.000Z

284

Geothermal Direct-Use Minimizing Land Use and Impact  

Broader source: Energy.gov [DOE]

With geothermal direct-use applications, land use issues usually only arise during exploration and development when geothermal reservoirs are located in or near urbanized areas, critical habitat...

285

Fracture Characterization in Enhanced Geothermal Systems by Wellbore...  

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

Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis; 2010 Geothermal Technology Program Peer Review Report Fracture Characterization in...

286

Three-dimensional Modeling of Fracture Clusters in Geothermal...  

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

Three-dimensional Modeling of Fracture Clusters in Geothermal Reservoirs; 2010 Geothermal Technology Program Peer Review Report Three-dimensional Modeling of Fracture Clusters in...

287

Oregon: DOE Advances Game-Changing EGS Geothermal Technology...  

Office of Environmental Management (EM)

demonstration project, at Newberry Volcano near Bend, Oregon, represents a key step in geothermal energy development, demonstrating that an engineered geothermal reservoir can...

288

Injectivity Test At Raft River Geothermal Area (1979) | Open Energy  

Open Energy Info (EERE)

Injectivity Test At Raft River Geothermal Area (1979) Injectivity Test At Raft River Geothermal Area (1979) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Raft River Geothermal Area (1979) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Injectivity Test Activity Date 1979 Usefulness useful DOE-funding Unknown Notes Quantification of the pressure response prior to 600 minutes is not always possible. Short-duration (< 24-hour) injection or pump tests are conducted with the drilling rig equipment, and long-duration (21-day) injection and pump tests are then conducted with the permanent pumping facilities. References Allman, D. W.; Goldman, D.; Niemi, W. L. (1 January 1979) Evaluation of testing and reservoir parameters in geothermal wells at Raft

289

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

GEOTHERMAL PRODUCTION FIELD, PHILIPPINES R. N. Colina, J. B. Omagbon, G. E. Parayno, R. P. Andrino, D. M. Yglopaz, R. C. M. Malate, F. X. M. Sta. Ana and J. J. C. Austria Energy Development Corporation Merritt

Stanford University

290

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

E-Print Network [OSTI]

using continuum models. Despite the fundamental uncertainties inherited within the probabilistic loop and installing operating equipment (DOE, 2008). Despite that geothermal energy is a mature gained from the geological site characterization and the fundamental uncertainties inherited within

Stanford University

291

Summary of the planning, management, and evaluation process for the Geothermal Program Review VI conference  

SciTech Connect (OSTI)

The purpose of this document is to present an overview of the planning, facilitation, and evaluation process used to conduct the Geothermal Program Review VI (PR VI) conference. This document was also prepared to highlight lessons learned from PR VI and, by utilizing the evaluation summaries and recommendations, be used as a planning tool for PR VII. The conference, entitled Beyond Goals and Objectives,'' was sponsored by the US Department of Energy's (DOE) Geothermal Technology Division (GTD), PR VI was held in San Francisco, California on April 19--21, 1988 and was attended by 127 participants. PR VI was held in conjunction with the National Geothermal Association's (NGA) Industry Round Table. This document presents a brief summary of the activities, responsibilities, and resources for implementing the PR VI meeting and provides recommendations, checklists, and a proposed schedule for assisting in planning PR VII.

Not Available

1988-10-01T23:59:59.000Z

292

Honokowai Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Honokowai Geothermal Area Honokowai Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Honokowai Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

293

Mokapu Penninsula Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Mokapu Penninsula Geothermal Area Mokapu Penninsula Geothermal Area (Redirected from Mokapu Penninsula Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Mokapu Penninsula Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

294

Kilauea Summit Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kilauea Summit Geothermal Area Kilauea Summit Geothermal Area (Redirected from Kilauea Summit Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kilauea Summit Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (12) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

295

Geothermal Reservoir Dynamics - TOUGHREACT  

E-Print Network [OSTI]

analysis of fluid flow, heat transfer, and rock-mechanicalof the coupling between fluid flow, heat transfer, chemical

2005-01-01T23:59:59.000Z

296

Geothermal energy abstract sets. Special report No. 14  

SciTech Connect (OSTI)

This bibliography contains annotated citations in the following areas: (1) case histories; (2) drilling; (3) reservoir engineering; (4) injection; (5) geothermal well logging; (6) environmental considerations in geothermal development; (7) geothermal well production; (8) geothermal materials; (9) electric power production; (10) direct utilization of geothermal energy; (11) economics of geothermal energy; and (12) legal, regulatory and institutional aspects. (ACR)

Stone, C. (comp.)

1985-01-01T23:59:59.000Z

297

Geothermal-well completions: a survey and technical evaluation of existing equipment and needs  

SciTech Connect (OSTI)

The geothermal environment and associated well completion problems are reviewed. Existing well completion equipment is surveyed and limitations are identified. A technical evaluation of selected completion equipment is presented. The technical evaluation concentrates on well cementing equipment and identifies potential failure mechanisms which limit the effectiveness of these tools. Equipment employed in sand control, perforating, and corrosion control are identified as potential subjects for future technical evaluation.

Nicholson, J.E.; Snyder, R.E.

1982-07-01T23:59:59.000Z

298

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

E-Print Network [OSTI]

to capture the alterations in reservoir properties (mainly porosity and permeability) due to changes water into a hot water reservoir will contract the rock, however the surrounding rock will constrain conditions are employed. In particular, porosity and permeability were coupled through the changes

Stanford University

299

Tracing Geothermal Fluids  

SciTech Connect (OSTI)

Geothermal water must be injected back into the reservoir after it has been used for power production. Injection is critical in maximizing the power production and lifetime of the reservoir. To use injectate effectively the direction and velocity of the injected water must be known or inferred. This information can be obtained by using chemical tracers to track the subsurface flow paths of the injected fluid. Tracers are chemical compounds that are added to the water as it is injected back into the reservoir. The hot production water is monitored for the presence of this tracer using the most sensitive analytic methods that are economically feasible. The amount and concentration pattern of the tracer revealed by this monitoring can be used to evaluate how effective the injection strategy is. However, the tracers must have properties that suite the environment that they will be used in. This requires careful consideration and testing of the tracer properties. In previous and parallel investigations we have developed tracers that are suitable from tracing liquid water. In this investigation, we developed tracers that can be used for steam and mixed water/steam environments. This work will improve the efficiency of injection management in geothermal fields, lowering the cost of energy production and increasing the power output of these systems.

Michael C. Adams; Greg Nash

2004-03-01T23:59:59.000Z

300

A technical and economic evaluation of waterflood infill drilling in West Texas Clearfork carbonate reservoirs  

E-Print Network [OSTI]

A TECHNICAL AND ECONOMIC EVALUATION OF WATERFLOOD INFILL DRILLING IN WEST TEXAS CLEARFORK CARBONATE RESERVOIRS A Thesis by DAVID PHILLIP FLORES 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; Petroleum Engineering A TECHNICAL AND ECONOMIC EVALUATION OF WATERFLOOD INFILL DRILLING IN WEST TEXAS CLEARFORK CARBONATE RESERVOIRS A Thesis by DAVID PHILLIP FLORES...

Flores, David Phillip

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Validation of Geothermal Tracer Methods in Highly Constrained...  

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

methods for measuring thermal evolution in CO2-and water-based geothermal reservoirs Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir Quantum Dot...

302

A History of Geothermal Energy Research and Development in the...  

Energy Savers [EERE]

Reservoir Engineering 1976-2006 A History of Geothermal Energy Research and Development in the United States: Reservoir Engineering 1976-2006 This report summarizes significant...

303

Hydrothermal Reservoirs | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Reservoirs Hydrothermal Reservoirs Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Hydrothermal Reservoirs Dictionary.png Hydrothermal Reservoir: Hydrothermal Reservoirs are underground zones of porous rock containing hot water and steam, and can be naturally occurring or human-made. Other definitions:Wikipedia Reegle Natural, shallow hydrothermal reservoirs naturally occurring hot water reservoirs, typically found at depths of less than 5 km below the Earth's surface where there is heat, water and a permeable material (permeability in rock formations results from fractures, joints, pores, etc.). Often, hydrothermal reservoirs have an overlying layer that bounds the reservoir and also serves as a thermal insulator, allowing greater heat retention. If hydrothermal reservoirs

304

Geothermal direct use engineering and design guidebook  

SciTech Connect (OSTI)

The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating and cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of the resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental consideration. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very large potential in the United States.

Lienau, P.J.; Lunis, B.C. (eds.)

1991-01-01T23:59:59.000Z

305

Geothermal direct use engineering and design guidebook  

SciTech Connect (OSTI)

The Geothermal Direct Use Engineering and Design Guidebook is designed to be a comprehensive, thoroughly practical reference guide for engineers and designers of direct heat projects. These projects could include the conversion of geothermal energy into space heating cooling of buildings, district heating, greenhouse heating, aquaculture and industrial processing. The Guidebook is directed at understanding the nature of geothermal resources and the exploration of these resources, fluid sampling techniques, drilling, and completion of geothermal wells through well testing, and reservoir evaluation. It presents information useful to engineers on the specification of equipment including well pumps, piping, heat exchangers, space heating equipment, heat pumps and absorption refrigeration. A compilation of current information about greenhouse, aquaculture and industrial applications is included together with a discussion of engineering cost analysis, regulation requirements, and environmental considerations. The purpose of the Guidebook is to provide an integrated view for the development of direct use projects for which there is a very potential in the United States.

Bloomquist, R.G.; Culver, G.; Ellis, P.F.; Higbee, C.; Kindle, C.; Lienau, P.J.; Lunis, B.C.; Rafferty, K.; Stiger, S.; Wright, P.M.

1989-03-01T23:59:59.000Z

306

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

E-Print Network [OSTI]

to geothermal heat mining using carbon dioxide instead of water. While manometric, volumetric, and gravimetric techniques have been used successfully to investigate adsorption of low-density subcritical vapors demonstrated using propane at subcritical and supercritical temperatures between 35 °C and 97 °C confined

Stanford University

307

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

E-Print Network [OSTI]

in the turbine is in the range of 1-6 mol%. Some condensation is likely to always occur in surface cooling generation equipment, similar to traditional steam geothermal power plants. Carbon-dioxide-based EGS systems water is present in the carbon dioxide, a water-rich phase will condense in surface equipment

Stanford University

308

Stanford Geothermal Program Final Report  

E-Print Network [OSTI]

of Energy under grant number DE-FG07-95ID13370 Stanford Geothermal Program Department of PetroleumStanford Geothermal Program Final Report July 1996 - June 1999 Funded by the U.S. Department ....................................................................................................................6 2. THE ROLE OF CAPILLARY FORCES IN THE NATURAL STATE OF FRACTURED GEOTHERMAL RESERVOIRS

Stanford University

309

Wister Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Wister Geothermal Area Wister Geothermal Area (Redirected from Wister Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Wister Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

310

White Mountains Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

White Mountains Geothermal Area White Mountains Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: White Mountains Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: New Hampshire Exploration Region: Other GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

311

Truckhaven Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Truckhaven Geothermal Area Truckhaven Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Truckhaven Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

312

Teels Marsh Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Teels Marsh Geothermal Area Teels Marsh Geothermal Area (Redirected from Teels Marsh Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Teels Marsh Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

313

Truckhaven Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Truckhaven Geothermal Area Truckhaven Geothermal Area (Redirected from Truckhaven Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Truckhaven Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

314

Wister Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Wister Geothermal Area Wister Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Wister Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

315

Development of a dual-porosity model for vapor-dominated fractured geothermal reservoirs using a semi-analytical fracture/matrix interaction term  

SciTech Connect (OSTI)

A new type of dual-porosity model is being developed to simulate two-phase flow processes in fractured geothermal reservoirs. At this time it is assumed that the liquid phase in the matrix blocks remains immobile. By utilizing the effective compressibility of a two-phase water/steam mixture in a porous rock, flow within the matrix blocks can be modeled by a single diffusion equation. This equation in turn is replaced by a non-linear ordinary differential equation that utilizes the mean pressure and mean saturation in the matrix blocks to calculate the rate of fluid flow between the matrix blocks and fractures. This equation has been incorporated into the numerical simulator TOUGH to serve as a source/sink term for computational gridblocks that represent the fracture system. The new method has been compared with solutions obtained using fully-discretized matrix blocks, on a problem involving a three-dimensional vapor-dominated reservoir containing an injection and a production well, and has been found to be quite accurate.

Zimmerman, R.W.; Hadgu, T.; Bodvarsson, G.S.

1993-02-01T23:59:59.000Z

316

U.S. Geothermal Announces Successful Completion  

Broader source: Energy.gov [DOE]

U.S. Geothermal Inc. (U.S. Geothermal), a renewable energy company focused on the production of electricity from geothermal energy, announced today that the first full size production well (NHS-1) at the Neal Hot Springs Project was successfully completed on May 23 and an initial flow test confirms the presence of a geothermal reservoir.

317

An evaluation of the geothermal potential of the Tecuamburro Volcano area of Guatemala  

SciTech Connect (OSTI)

Radiometric ages indicate that the Tecuamburro Volcano and three adjacent lava domes grew during the last 38,300 years, and that a 360-m-wide phreatic crater, Laguna Ixpaco, was formed near the base of these domes about 2900 years ago. Laguna Ixpaco is located within the Chupadero crater, from which pyroxene pumice deposits were erupted 38,300 years ago. Thus, the likelihood is great for a partly molten or solid-but-still-hot near-surface intrusion beneath the area. Fumaroles and hot springs issue locally from the Tecuamburro volcanic complex and near Laguna Ixpaco. Analyses of gas and fluid samples from these and other nearby thermal manifestations yield chemical-geothermometer temperatures of about 150{degree} to 300{degree}C, with the highest temperatures at Ixpaco. The existence of a commercial-grade geothermal reservoir beneath the Ixpaco area seems likely. 84 refs., 70 figs., 12 tabs.

Heiken, G.; Duffield, W. (eds.)

1990-09-01T23:59:59.000Z

318

A manual for evaluation and exploitation of carbonate reservoirs  

E-Print Network [OSTI]

different stages of exploration/exploitation: before drilling, during drilling, and after drilling. The selection of the appropriate carbonate reservoir model should be made first considering information obtained before and during drilling. Rocks.... . . . . . . 53 . . . 56 . . . . . 57 . . . . 60 LIST OF FIGURES (Continued) Page Fig. 24, Three different rock types, their hydrocarbon distribution, and their capillary pressure curve types. . Fig. 25. a Effect of pore-to-throat size on recovery...

Cordova, Pedro Luis

2012-06-07T23:59:59.000Z

319

Modeling-Computer Simulations At Raft River Geothermal Area (1983) | Open  

Open Energy Info (EERE)

Modeling-Computer Simulations At Raft River Geothermal Area (1983) Modeling-Computer Simulations At Raft River Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Raft River Geothermal Area (1983) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Modeling-Computer Simulations Activity Date 1983 Usefulness useful DOE-funding Unknown Exploration Basis Predict flow rate and porosity Notes The objectives of the physical modeling effort are to: (1) evaluate injection-backflow testing for fractured reservoirs under conditions of known reservoir parameters (porosity, fracture width, etc.); (2) study the mechanisms controlling solute transport in fracture systems; and (3) provide data for validation of numerical models that explicitly simulate

320

Methodology for the evaluation of a 4000-home geothermal heat pump retrofit at Fort Polk, Louisiana  

SciTech Connect (OSTI)

The US Army and a private energy service company are developing a comprehensive energy efficiency project to upgrade the family housing at Fort Polk, Louisiana. The project includes converting the space conditioning systems of more than 4,000 housing units to geothermal (or ground-source) heat pumps (GHPs). This interim report describes the methodology of the evaluation associated with this project, including the field monitoring that has been conducted at the base.

Hughes, P.J.; Shonder, J.A.; White, D.L.; Huang, H.L.

1998-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

Cambridge, MA, 02139, USA e-mail: dconcha@mit.edu ABSTRACT We used the double-difference tomography method-sous-Forets, France with 45000 m3 of water resulted in over 12,000 microseismic events (also known as microearthquakes the reservoir. The 1993 stimulations at Soultz consisted of the injection of 45,000 m3 of water into an open

Stanford University

322

PROCEEDINGS, Thirty-Fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, February 1-3, 2010  

E-Print Network [OSTI]

to hydraulic short-circuiting and inefficient heat transfer. The establishment of hydraulic connectivity geochemical and thermodynamic conditions in the reservoir to avoid degradation or adsorption of the tracer pumping tests conducted in heterogeneous transmissivity fields result in an overestimation of storativity

Stanford University

323

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

E-Print Network [OSTI]

in water, as can be observed in carbonated beverages. Furthermore, you can observe that the CO2 gas comes warm (the gas is less soluble at high temperatures). These simple observations illustrate a significant impact on ultimate reservoir performance. During simulation of water- alternating-gas floods

Stanford University

324

Evaluation of Reservoir Wettability and its Effect on Oil Recovery,10/96,659,264  

Office of Scientific and Technical Information (OSTI)

EVALUATION OF RESERVOIR WETTABILITY AND ITS EFFECT ON OIL RECOVERY EVALUATION OF RESERVOIR WETTABILITY AND ITS EFFECT ON OIL RECOVERY First Annual Report by Jill S. Buckley Work Performed under Cooperative Agreement Number DE-FC22-96ID13421 Reporting Period: July 1, 1996 - June 30, 1997 Prepared for U.S. Department of Energy Assistant Secretary for Fossil Energy Jerry Casteel, Project Manager National Petroleum Technology Center P.O. Box 3628 Tulsa OK 74101 Prepared by Petroleum Recovery Research Center New Mexico Institute of Mining and Technology 801 Leroy Place Socorro, NM 87801 ii ABSTRACT We report on the first year of the project, "Evaluation of Reservoir Wettability and its Effect on Oil Recovery." The objectives of this five-year project are (1) to achieve improved understanding of the surface and interfacial properties of crude oils and their interactions with

325

Consolidation of geologic studies of geopressured-geothermal resources in Texas. 1990 Annual report  

SciTech Connect (OSTI)

In a five-county area of South Texas, geopressured-geothermal reservoirs in the upper Wilcox Group colocated with heavy-oil reservoirs in the overlying Jackson Group. In 1990, research at the Bureau of Economic Geology concentrated on evaluating the potential of using geopressured-geothermal water for hot-water flooding of heavy-oil reservoirs. Favorable geothermal reservoirs are defined by thick deltaic sandstones and growth-fault-bounded compartments. Potential geothermal reservoirs are present at a depth of 11,000 ft (3,350 m) to 15,000 ft (4,570 m) and contain water at temperatures of 350 F (177 C) to 383 F (195 C) in Fandango field, Zapata County. One potential geothermal reservoir sandstone in the upper Wilcox (R sandstone) is composed of a continuous sand body 100 ft (30 m) to greater than 200 ft (>61 m) thick. Fault blocks average 2 to 4 mi{sup 2} (5.2 to 10.4 km{sup 2}) in area.

Raney, J.A.; Seni, S.J.; DuBar, J.R.; Walter, T.G.

1991-03-01T23:59:59.000Z

326

E-Print Network 3.0 - annual interagency geothermal Sample Search...  

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

on Geothermal Reservoir Engineering Stanford University... Keyan Zheng1 Fang He2 1 Geothermal Council of China Energy Society 20 Da Hui Si Road, Haidian District... of...

327

The Patuha geothermal system: a numerical model of a vapor-dominated system.  

E-Print Network [OSTI]

??The Patuha geothermal system is a vapor-dominated reservoir located about 40 kilometers southwest of Bandung on western Java, Indonesia. The geothermal system consists of a (more)

Schotanus, M.R.J.

2013-01-01T23:59:59.000Z

328

Seismic Fracture Characterization Methods for Enhanced Geothermal...  

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

Seismic Fracture Characterization Methods for Enhanced Geothermal Systems Principal Investigator: John H. Queen Hi-Q Geophysical Inc. Track Name: Seismicity and Reservoir Fracture...

329

Development of Enhanced Geothermal Systems Technologies Workshops...  

Energy Savers [EERE]

in the report by the Massachusetts Institute of Technology (MIT) titled The Future of Geothermal Energy (MIT 2006). Three of the presentations (in the areas of Reservoir...

330

Magmatic Geothermal Play Type | Open Energy Information  

Open Energy Info (EERE)

Making. In: Proceedings. Thirty-Ninth Workshop on Geothermal Reservoir Engineering; 20140224; Stanford, California. Stanford, California: Stanford University; p. 8 Inga...

331

Geothermal Literature Review At Coso Geothermal Area (1985) | Open Energy  

Open Energy Info (EERE)

5) 5) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermal Literature Review Activity Date 1985 Usefulness not indicated DOE-funding Unknown Exploration Basis Need to develop a reservoir model for Coso Notes Analysis of complex geothermal system was done by looking at the available data on the Coso Geothermal Field References Austin, C.F.; Durbin, W.F. (1 September 1985) Coso: example of a complex geothermal reservoir. Final report, 1984-1985 Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Literature_Review_At_Coso_Geothermal_Area_(1985)&oldid=510801" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers

332

Lualualei Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Lualualei Valley Geothermal Area (Redirected from Lualualei Valley Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lualualei Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

333

Geophysical logging case history of the Raft River geothermal system, Idaho  

Open Energy Info (EERE)

Geophysical logging case history of the Raft River geothermal system, Idaho Geophysical logging case history of the Raft River geothermal system, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geophysical logging case history of the Raft River geothermal system, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysical logging program. There is no comprehensive report on the geophysical logging, nor has there been a complete interpretation. The objectives of this study are to make an integrated interpretation of the available data and compile a case history. Emphasis has been on developing a simple interpretation

334

Heat Flow And Geothermal Potential In The South-Central United States |  

Open Energy Info (EERE)

And Geothermal Potential In The South-Central United States And Geothermal Potential In The South-Central United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Heat Flow And Geothermal Potential In The South-Central United States Details Activities (1) Areas (1) Regions (0) Abstract: Geothermal exploration is typically limited to high-grade hydrothermal reservoirs that are usually found in the western United States, yet large areas with subsurface temperatures above 150 deg. C at economic drilling depths can be found east of the Rocky Mountains. The object of this paper is to present new heat flow data and to evaluate the geothermal potential of Texas and adjacent areas. The new data show that, west of the Ouachita Thrust Belt, the heat flow values are lower than east of the fault zone. Basement heat flow values for the Palo Duro and Fort

335

DOE-Funded Research at Stanford Sees Results in Reservoir Characteriza...  

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

Geothermal Systems (EGS). This research will help developers learn more about the fracture systems in geothermal reservoirs, so that they may better predict the results of...

336

Geothermal/Exploration | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Exploration Geothermal/Exploration < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Exploration General Techniques Tree Techniques Table Regulatory Roadmap NEPA (120) Geothermal springs along Yellowstone National Park's Firehole River in the cool air of autumn. The world's most environmentally sensitive geothermal features are protected by law. Geothermal Exploration searches the earth's subsurface for geothermal resources that can be extracted for the purpose of electricity generation. A geothermal resource is as commonly a volume of hot rock and water, but in the case of EGS, is simply hot rock. Geothermal exploration programs utilize a variety of techniques to identify geothermal reservoirs as well

337

In-situ stress and fracture permeability in a fault-hosted geothermal reservoir at Dixie Valley, Nevada  

SciTech Connect (OSTI)

As part of a study relating fractured rock hydrology to in-situ stress and recent deformation within the Dixie Valley Geothermal Field, borehole televiewer logging and hydraulic fracturing stress measurements were conducted in a 2.7-km-deep geothermal production well (73B-7) drilled into the Stillwater fault zone. Borehole televiewer logs from well 73B-7 show numerous drilling-induced tensile fractures, indicating that the direction of the minimum horizontal principal stress, S{sub hmin}, is S57{degrees}E. As the Stillwater fault at this location dips S50{degrees}E at {approximately}53{degrees}, it is nearly at the optimal orientation for normal faulting in the current stress field. Analysis of the hydraulic fracturing data shows that the magnitude of S{sub hmin} is 24.1 and 25.9 MPa at 1.7 and 2.5 km, respectively. In addition, analysis of a hydraulic fracturing test from a shallow well 1.5 km northeast of 73B-7 indicates that the magnitude of S{sub hmin} is 5.6 MPa at 0.4 km depth. Coulomb failure analysis shows that the magnitude of S{sub hmin} in these wells is close to that predicted for incipient normal faulting on the Stillwater and subparallel faults, using coefficients of friction of 0.6-1.0 and estimates of the in-situ fluid pressure and overburden stress. Spinner flowmeter and temperature logs were also acquired in well 73B-7 and were used to identify hydraulically conductive fractures.

Hickman, S. [Geological Survey, Menlo Park, CA (United States); Barton, C.; Zoback, M. [Stanford Univ., CA (United States)] [and others

1997-12-31T23:59:59.000Z

338

Investigation and evaluation of geopressured-geothermal wells  

SciTech Connect (OSTI)

Over the life of the project, 1143 wildcat wells were screened for possible use. Although many did not meet the program's requirement for sand development, a surprisingly large number were abandoned because of downhole mechanical problems. Only 94 of these wells were completed as commercial hydrocarbon producers. Five wells of opportunity were funded for testing. Of these, two were evaluated for their hydraulic energy, thermal energy, and recoverable methane, and three were abandoned because of mechanical problems. (MHR)

Hartsock, J.H.; Rodgers, J.A.

1980-09-01T23:59:59.000Z

339

Energetic and economic evaluations of geothermal district heating systems by using ANN  

Science Journals Connector (OSTI)

This paper proposes an artificial neural network (ANN) technique as a new approach to evaluate the energy input, losses, output, efficiency, and economic optimization of a geothermal district heating system (GDHS). By using ANN, an energetic analysis is evaluated on the Afyon geothermal district heating system (AGDHS) located in the city of Afyonkarahisar, Turkey. Promising results are obtained about the economic evaluation of that system. This has been used to determine if the existing system is operating at its optimal level, and will provide information about the optimal design and profitable operation of the system. The results of the study show that the ANN model used for the prediction of the energy performance of the AGDHS has good statistical performance values: a correlation coefficient of 0.9983 with minimum RMS and MAPE values. The total cost for the AGDHS is profitable when the PWF is higher than 7.9. However, the PWF of the AGDHS was found to be 1.43 for the given values. As a result, while installing a GDHS, one should take into account the influences of the PWF, ambient temperature and flow rate on the total costs of the system in any location where it is to be established.

Ali Keeba?; Mehmet Ali Alkan; ?smail Yabanova; Mehmet Yumurtac?

2013-01-01T23:59:59.000Z

340

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Geothermal/Well Field < Geothermal(Redirected from Well Field) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (45) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright © 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques

Note: This page contains sample records for the topic "geothermal reservoir evaluation" from the National Library of EnergyBeta (NLEBeta).
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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

Geothermal/Well Field | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Well Field Geothermal/Well Field < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Well Fields and Reservoirs General Techniques Tree Techniques Table Regulatory Roadmap NEPA (42) Geothermal energy plant at The Geysers near Santa Rosa in Northern California, the world's largest electricity-generating hydrothermal geothermal development. Copyright © 1995 Warren Gretz Geothermal Well Fields discussion Groups of Well Field Techniques There are many different techniques that are utilized in geothermal well field development and reservoir maintenance depending on the region's geology, economic considerations, project maturity, and other considerations such as land access and permitting requirements. Well field

342

Definition: Geothermal Direct Use | Open Energy Information  

Open Energy Info (EERE)

Geothermal Direct Use Geothermal Direct Use Jump to: navigation, search Dictionary.png Geothermal Direct Use Low- to moderate-temperature water from geothermal reservoirs can be used to provide heat directly to buildings, or other applications that require heat. Generally, the water in the geothermal reservoirs withdrawn for direct use is between 68° F to 302° F. In addition to residential, commercial and industrial buildings, homes, pools and spas, greenhouses, fish farms, and even mining operations utilize direct use of geothermal resources for heat[1][2] View on Wikipedia Wikipedia Definition Geothermal heating is the direct use of geothermal energy for heating applications. Humans have taken advantage of geothermal heat this way since the Paleolithic era. Approximately seventy countries made direct

343

Geothermal well log interpretation state of the art. Final report  

SciTech Connect (OSTI)

An in-depth study of the state of the art in Geothermal Well Log Interpretation has been made encompassing case histories, technical papers, computerized literature searches, and actual processing of geothermal wells from New Mexico, Idaho, and California. A classification scheme of geothermal reservoir types was defined which distinguishes fluid phase and temperature, lithology, geologic province, pore geometry, salinity, and fluid chemistry. Major deficiencies of Geothermal Well Log Interpretation are defined and discussed with recommendations of possible solutions or research for solutions. The Geothermal Well Log Interpretation study and report has concentrated primarily on Western US reservoirs. Geopressured geothermal reservoirs are not considered.

Sanyal, S.K.; Wells, L.E.; Bickham, R.E.

1980-01-01T23:59:59.000Z

344

Geothermal Energy | Open Energy Information  

Open Energy Info (EERE)

Geothermal power) Geothermal power) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Overview Technologies Resources Market Data Geothermal Topics Data Resources Financing Permitting & Policy Links Geothermal Energy The Sierra Nevada Mountains provide a spectacular backdrop for a cooling tower array at the ORMAT Mammoth Geothermal Power Plant in Central California. Geothermal energy is heat extracted from the Earth. A wide range of temperatures can be suitable for using geothermal energy, from room temperature to above 300° F.[1] This heat can be drawn from various depths, ranging from the shallow ground (the upper 10 feet beneath the surface of the Earth) that maintains a relatively constant temperature of approximately 50° to 60° F, to reservoirs of extremely hot water and

345

Geothermal Energy | Open Energy Information  

Open Energy Info (EERE)

(Redirected from Geothermal Power) (Redirected from Geothermal Power) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Geothermal Energy RSF GeothermalPowerStation.jpg Geothermal energy is heat extracted from the Earth [Geo (Earth) + thermal (heat)].The temperature of the Earth varies widely, and a wide range of temperatures can be suitable for using geothermal energy, from room temperature to above 300° F.[1] This heat can be drawn from several sources, ranging from the shallow ground (the upper 10 feet beneath the surface of the Earth) that maintains a relatively constant temperature of approximately 50° to 60° F, to reservoirs of extremely hot water and steam located both near the Earth's surface as well as several miles deep into the Earth, even reaching the Earth's magma.[2][3] Geothermal

346

Geothermal Energy | Open Energy Information  

Open Energy Info (EERE)

Geothermal) Geothermal) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Overview Technologies Resources Market Data Geothermal Topics Data Resources Financing Permitting & Policy Links Geothermal Energy The Sierra Nevada Mountains provide a spectacular backdrop for a cooling tower array at the ORMAT Mammoth Geothermal Power Plant in Central California. Geothermal energy is heat extracted from the Earth. A wide range of temperatures can be suitable for using geothermal energy, from room temperature to above 300° F.[1] This heat can be drawn from various depths, ranging from the shallow ground (the upper 10 feet beneath the surface of the Earth) that maintains a relatively constant temperature of approximately 50° to 60° F, to reservoirs of extremely hot water and

347

Energetic, exergetic, economic and environmental evaluations of geothermal district heating systems: An application  

Science Journals Connector (OSTI)

This study deals with an energetic and exergetic analysis as well as economic and environmental evaluations of Afyon geothermal district heating system (AGDHS) in Afyon, Turkey. In the analysis, actual system data are used to assess the district heating system performance, energy and exergy efficiencies, specific exergy index, exergetic improvement potential and exergy losses. And, for economic and environmental evaluations, actual data are obtained from the Technical Departments. The energy and exergy flow diagrams are clearly drawn to illustrate how much destructions/losses take place in addition to the inputs and outputs. For system performance analysis and improvement, both energy and exergy efficiencies of the overall AGDHS are determined to be 34.86% and 48.78%, respectively. The efficiency improvements in heat and power systems can help achieving energy security in an environmentally acceptable way by reducing the emissions that might otherwise occur. Present application has shown that in Turkey, geothermal energy is much cheaper than the other energy sources, like fossil fuels, and makes a significant contribution towards reducing the emissions of air pollution.

Ali Keeba?

2013-01-01T23:59:59.000Z

348

Stanford geothermal program. Final report, July 1990--June 1996  

SciTech Connect (OSTI)

This report discusses the following: (1) improving models of vapor-dominated geothermal fields: the effects of adsorption; (2) adsorption characteristics of rocks from vapor-dominated geothermal reservoir at the Geysers, CA; (3) optimizing reinjection strategy at Palinpinon, Philippines based on chloride data; (4) optimization of water injection into vapor-dominated geothermal reservoirs; and (5) steam-water relative permeability.

NONE

1998-03-01T23:59:59.000Z

349

Testing geopressured geothermal reservoirs in existing wells: Pauline Kraft Well No. 1, Nueces County, Texas. Final report  

SciTech Connect (OSTI)

The Pauline Kraft Well No. 1 was originally drilled to a depth of 13,001 feet and abandoned as a dry hole. The well was re-entered in an effort to obtain a source of GEO/sup 2/ energy for a proposed gasohol manufacturing plant. The well was tested through a 5-inch by 2-3/8 inch annulus. The geological section tested was the Frio-Anderson sand of Mid-Oligocene age. The interval tested was from 12,750 to 12,860 feet. A saltwater disposal well was drilled on the site and completed in a Micocene sand section. The disposal interval was perforated from 4710 to 4770 feet and from 4500 to 4542 feet. The test well failed to produce water at substantial rates. Initial production was 34 BWPD. A large acid stimulation treatment increased productivity to 132 BWPD, which was still far from an acceptable rate. During the acid treatment, a failure of the 5-inch production casing occurred. The poor production rates are attributed to a reservoir with very low permeability and possible formation damage. The casing failure is related to increased tensile strain resulting from cooling of the casing by acid and from the high surface injection pressure. The location of the casing failure is now known at this time, but it is not at the surface. Failure as a result of a defect in a crossover joint at 723 feet is suspected.

Not Available

1981-01-01T23:59:59.000Z

350

NREL: Learning - Geothermal Direct Use  

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

Direct Use Direct Use Photo of alligators on a farm. Geothermally heated waters allow alligators to thrive on a farm in Colorado, where temperatures can drop below freezing. Geothermal reservoirs of hot water, which are found a few miles or more beneath the Earth's surface, can be used to provide heat directly. This is called the direct use of geothermal energy. Geothermal direct use has a long history, going back to when people began using hot springs for bathing, cooking food, and loosening feathers and skin from game. Today, hot springs are still used as spas. But there are now more sophisticated ways of using this geothermal resource. In modern direct-use systems, a well is drilled into a geothermal reservoir to provide a steady stream of hot water. The water is brought up through

351

GEOTHERM Data Set  

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

GEOTHERM is a comprehensive system of public databases and software used to store, locate, and evaluate information on the geology, geochemistry, and hydrology of geothermal systems. Three main databases address the general characteristics of geothermal wells and fields, and the chemical properties of geothermal fluids; the last database is currently the most active. System tasks are divided into four areas: (1) data acquisition and entry, involving data entry via word processors and magnetic tape; (2) quality assurance, including the criteria and standards handbook and front-end data-screening programs; (3) operation, involving database backups and information extraction; and (4) user assistance, preparation of such items as application programs, and a quarterly newsletter. The principal task of GEOTHERM is to provide information and research support for the conduct of national geothermal-resource assessments. The principal users of GEOTHERM are those involved with the Geothermal Research Program of the U.S. Geological Survey.

DeAngelo, Jacob

352

Geothermal Energy Development annual report 1979  

SciTech Connect (OSTI)

This report is an exerpt from Earth Sciences Division Annual Report 1979 (LBL-10686). Progress in thirty-four research projects is reported including the following area: geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, and geothermal environmental research. Separate entries were prepared for each project. (MHR)

Not Available

1980-08-01T23:59:59.000Z

353

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL  

E-Print Network [OSTI]

THERMO-HYDRO-MECHANICAL SIMULATION OF GEOTHERMAL RESERVOIR STIMULATIONRESERVOIR STIMULATION Silvia Seminario del Grupo de Hidrologìa Subterrànea - UPC, Barcelona #12;INTRODUCTION Enhanced geothermal systems Geothermal gradient ~ 33 °C/Km Hydraulic stimulation enhances fracture permeability (energy

Politècnica de Catalunya, Universitat

354

. Stanford Geothermal Program Interdisciplinary Research in  

E-Print Network [OSTI]

. Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD UNIVERSITY Stanford, California SGP-TR- 80 DEPLETION MODELING OF LIQUID DOMINATED GEOTHERMAL RESERVOIRS BY Gudmund 01sen June 1984 Financial support was provided through the Stanford Geothermal Program under

Stanford University

355

Stanford Geothermal Program Interdisciplinary Research in  

E-Print Network [OSTI]

was provided through the Stanford Geothermal Program under Department of Energy Contract No. DE-AT03-80SF11459Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORTI UNIVERSITY Stanford, California SGP-TR-85 ANALYSIS OF THE STANFORD GEOTHERMAL RESERVOIR MODEL EXPERIMENTS

Stanford University

356

Hualalai Northwest Rift Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Hualalai Northwest Rift Geothermal Area Hualalai Northwest Rift Geothermal Area (Redirected from Hualalai Northwest Rift Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Hualalai Northwest Rift Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

357

Under Steamboat Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Under Steamboat Springs Geothermal Area Under Steamboat Springs Geothermal Area (Redirected from Under Steamboat Springs Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Under Steamboat Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure

358

Columbus Salt Marsh Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Columbus Salt Marsh Geothermal Area Columbus Salt Marsh Geothermal Area (Redirected from Columbus Salt Marsh Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Columbus Salt Marsh Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure

359

Obsidian Cliff Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Obsidian Cliff Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Obsidian Cliff Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0

360

Evaluation of dichalcogenide compounds as possible sorption reservoirs for thermionic converters  

SciTech Connect (OSTI)

Recently a metal matrix sorption reservoir (MMSR) was developed for use as a self-regulating internal cesium reservoir for thermionic converters. The MMSR contains powdered graphite in a sintered refractory metal matrix. This innovation opens up the possibility of using alternative intercalating compounds previously overlooked because they are typically only available in powder form. One such alternative is the general class of materials known as dichalcogenides of metals. The dichalcogenide compounds are of the form MX[sub 2] where M is a metal and X is either S, Se or Te. The dichalcogenides have the laminar structure required for intercalation and some have been shown to intercalate liquid metals under certain conditions. Selected refractory metal dichalcogenides have been evaluated as potential cesium sorption reservoirs in thermionic converters. Testing showed the majority of the dichalcogenides are not stable in the thermal environment of current Thermionic Fuel Element (TFE) designs. Of the seven compounds that can survive the high temperatures and vacuum, four are not compatible with the cesium vapor at converter temperatures. The three remaining dichalcogenide compounds suitable for use in thermionic converters did not intercalate cesium at typical converter operating conditions. The result of this work allow the continued effort towards developing an internal self-regulating cesium reservoir to be concentrated on graphite contained in MMSRs.

Garner, S.D.; Horner-Richardson, K.D. (Thermacore, Inc., 780 Eden Road, Lancaster, Pennsylvania 17601 (United States)); Kim, K.Y. (WL/POOC, Wright-Patterson AFB, Ohio 45433-6563 (United States))

1993-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Some mismatches occurred when simulating fractured reservoirs as homogeneous porous media  

SciTech Connect (OSTI)

The understanding of transport processes that occur in naturally fractured geothermal systems is far from being complete. Often, evaluation and numerical simulations of fractured geothermal reservoirs, are carried out by assuming equivalent porous media and homogeneous petrophysical properties within big matrix blocks. The purpose of this paper, is to present a comparison between results obtained from numerical studies of a naturally fractured reservoir treated as a simple porous medium and the simulation of some real aspects of the fractured reservoir. A general conclusion outlines the great practical importance of considering even approximately, the true nature of such systems. Our results show that the homogeneous simplified evaluation of the energy resource in a fractured system, could result in unrealistic estimates of the reservoir capacity to generate electricity.

Mario Cesar Suarez Arriaga; Fernando Samaniego V.; Fernando Rodriguez

1996-01-24T23:59:59.000Z

362

Stanford Geothermal Workshop - Geothermal Technologies Office...  

Energy Savers [EERE]

- Geothermal Technologies Office Stanford Geothermal Workshop - Geothermal Technologies Office Presentation by Geothermal Technologies Director Doug Hollett at the Stanford...

363

Physical model of a fractured reservoir | Open Energy Information  

Open Energy Info (EERE)

model of a fractured reservoir model of a fractured reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Physical model of a fractured reservoir Details Activities (1) Areas (1) Regions (0) Abstract: The objectives of the physical modeling effort are to: (1) evaluate injection-backflow testing for fractured reservoirs under conditions of known reservoir parameters (porosity, fracture width, etc.); (2) study the mechanisms controlling solute transport in fracture systems; and (3) provide data for validation of numerical models that explicitly simulate solute migration in fracture systems. The fracture network is 0.57-m wide, 1.7-m long, and consists of two sets of fractures at right angles to one another with a fracture spacing of 10.2 cm. A series of

364

Engineered Geothermal Systems.  

E-Print Network [OSTI]

?? Different concepts for Enhanced Geothermal Systems (EGS) are presented and evaluated according to their potential for medium to large scale power production in Norwegian (more)

Drange, Lars Anders

2011-01-01T23:59:59.000Z

365

Navy 1 Geothermal Area | Department of Energy  

Energy Savers [EERE]

Geothermal Area Navy 1 Geothermal Area The Navy 1 Geothermal Project is located on the test and evaluation ranges of the Naval Air Weapons Station, China Lake. At its peak, the...

366

A semi-analytical model for heat and mass transfer in geothermal reservoirs to estimate fracture surface-are-to-volume ratios and thermal breakthrough using thermally-decaying and diffusing tracers  

SciTech Connect (OSTI)

A semi-analytical model was developed to conduct rapid scoping calculations of responses of thermally degrading and diffusing tracers in multi-well tracer tests in enhanced geothermal systems (EGS). The model is based on an existing Laplace transform inversion model for solute transport in dual-porosity media. The heat- and mass-transfer calculations are decoupled and conducted sequentially, taking advantage of the fact that heat transfer between fractures and the rock matrix is much more rapid than mass transfer and therefore mass transfer will effectively occur in a locally isothermal system (although the system will be nonisothermal along fracture flow pathways, which is accounted for by discretizing the flow pathways into multiple segments that have different temperature histories). The model takes advantage of the analogies between heat and mass transfer, solving the same governing equations with k{sub m}/({rho}C{sub p}){sub w} being substituted for {phi}D{sub m} in the equation for fracture transport and k{sub m}/({rho}C{sub p}){sub m} being subsituted for D{sub m} in the equation for matrix transport; where k = thermal conductivity (cal/cm-s-K), {rho} = density (g/cm{sup 3}), C{sub p} = heat capacity (at constant pressure) (cal/g-K), {phi} = matrix porosity, and D = tracer diffusion coefficient (cm{sup 2}/s), with the subscripts w and m referring to water and matrix, respectively. A significant advantage of the model is that it executes in a fraction of second on a single-CPU personal computer, making it very amenable for parameter estimation algorithms that involve repeated runs to find global minima. The combined thermal-mass transport model was used to evaluate the ability to estimate when thermal breakthrough would occur in a multi-well EGS configuration using thermally degrading tracers. Calculations were conducted to evaluate the range of values of Arrhenius parameters, A and E{sub {alpha}} (pre-exponential factor, 1/s, and activation energy, cal/mol) required to obtain interpretable responses of thermally-degrading tracers that decay according to the rate constant k{sub d} = Ae{sup -E{sub {alpha}}/RT}, where k{sub d} = decay rate constant (1/s), R = ideal gas constant (1.987 cal/mol-K), and T = absolute temperature (K). It is shown that there are relatively narrow ranges of A and E{sub {alpha}} that will result in readily interpretable tracer responses for any given combination of ambient reservoir temperature and working fluid residence time in a reservoir. The combined model was also used to simulate the responses of conservative tracers with different diffusion coefficients as a way of estimating fracture surface-area-to-volume ratios (SA/V) in multi-well EGS systems. This method takes advantage of the fact that the differences in breakthrough curves of tracers with different matrix diffusion coefficients are a function of SA/V. The model accounts for differences in diffusion coefficients as a function of temperature so that tracer responses obtained at different times can be used to obtain consistent estimates of SA/V as the reservoir cools down. Some single-well applications of this approach are simulated with a numerical model to demonstrate the potential to evaluate the effectiveness of EGS stimulations before a second well is drilled.

Reimus, Paul W [Los Alamos National Laboratory

2010-12-08T23:59:59.000Z

367

Raft River Geothermal Exploratory Hole No. 2, RRGE-2. Completion report |  

Open Energy Info (EERE)

Hole No. 2, RRGE-2. Completion report Hole No. 2, RRGE-2. Completion report Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Raft River Geothermal Exploratory Hole No. 2, RRGE-2. Completion report Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River Geothermal Exploratory Hole No. 2 (RRGE-2) is the second exploratory hole drilled in the Raft River Valley location of the Idaho Geothermal R and D Project for the purpose of determining the existence of hot water in quantities suitable for commercial power generation and nonelectric applications. This well was drilled to a depth of 6,543 feet below ground level to obtain additional geological information for evaluation of the deep geothermal reservoir system. The drilling and completion of RRGE-2 are described. The daily drilling

368

Earth Tidal Analysis At East Mesa Geothermal Area (1984) | Open Energy  

Open Energy Info (EERE)

Geothermal Area (1984) Geothermal Area (1984) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Earth Tidal Analysis At East Mesa Geothermal Area (1984) Exploration Activity Details Location East Mesa Geothermal Area Exploration Technique Earth Tidal Analysis Activity Date 1984 Usefulness useful DOE-funding Unknown Exploration Basis Determine porosity of the reservoir Notes The response of a confined, areally infinite aquifer to external loads imposed by earth tides is examined. Because the gravitational influence of celestial objects occurs over large areas of the earth, the confined aquifer is assumed to respond in an undrained fashion. Since undrained response is controlled by water compressibility, earth tide response can be directly used only to evaluate porous medium compressibility if porosity is

369

Kilauea Summit Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kilauea Summit Geothermal Area Kilauea Summit Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kilauea Summit Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (12) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

370

Molokai Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Molokai Geothermal Area Molokai Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Molokai Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

371

Maui Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Maui Geothermal Area Maui Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Maui Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (13) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

372

Kauai Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kauai Geothermal Area Kauai Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kauai Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

373

Rhodes Marsh Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Rhodes Marsh Geothermal Area Rhodes Marsh Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Rhodes Marsh Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

374

Kawaihae Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kawaihae Geothermal Area Kawaihae Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kawaihae Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

375

Mokapu Penninsula Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Mokapu Penninsula Geothermal Area Mokapu Penninsula Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Mokapu Penninsula Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

376

Lualualei Valley Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lualualei Valley Geothermal Area Lualualei Valley Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lualualei Valley Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

377

Kawaihae Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kawaihae Geothermal Area Kawaihae Geothermal Area (Redirected from Kawaihae Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kawaihae Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

378

Teels Marsh Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Teels Marsh Geothermal Area Teels Marsh Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Teels Marsh Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

379

Maui Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Maui Geothermal Area Maui Geothermal Area (Redirected from Maui Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Maui Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (13) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

380

Haleakala Volcano Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Haleakala Volcano Geothermal Area Haleakala Volcano Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Haleakala Volcano Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Desert Queen Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Desert Queen Geothermal Area Desert Queen Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Desert Queen Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (4) 9 Exploration Activities (1) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northwest Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

382

Kauai Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Kauai Geothermal Area Kauai Geothermal Area (Redirected from Kauai Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kauai Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

383

A quantitative evaluation of effective shale content and its influence on electrical resistivity and permeability of reservoir rocks  

E-Print Network [OSTI]

A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS A Thesis By PARAYATH E. B. MENON Submitted to the Graduate College of Texas ASM University in Partial... fulfillment of the Requirements for the Degree of MASTER OF SCIENCE January, f965 Major Subject: Petroleum Engineering A QUANTITATIVE EVALUATION OF EFFECTIVE SHALE CONTENT AND ITS INFLUENCE ON ELECTRICAL RESISTIVITY AND PERMEABILITY OF RESERVOIR ROCKS...

Menon, Parayath Eravi Bhaskara

2012-06-07T23:59:59.000Z

384

Geothermal energy systems: research perspective for domestic energy provision  

Science Journals Connector (OSTI)

This article is focused on research demand for the environmental and economic sustainable utilization of geothermal reservoirs for base load supply of heat and electricity by Enhanced Geothermal Sy...

Ernst Huenges; Thomas Kohl; Olaf Kolditz; Judith Bremer

2013-12-01T23:59:59.000Z

385

Exergoeconomic evaluation on the optimum heating circuit system of Simav geothermal district heating system  

Science Journals Connector (OSTI)

Simav is one of the most important 15 geothermal areas in Turkey. It has several geothermal resources with the mass flow rate ranging from 35 to 72kg/s and temperature from 88 to 148C. Hence, these geothermal resources are available to use for several purposes, such as electricity generation, district heating, greenhouse heating, and balneological purposes. In Simav, the 5000 residences are heated by a district heating system in which these geothermal resources are used. Beside this, a greenhouse area of 225,000m2 is also heated by geothermal. In this study, the working conditions of the Simav geothermal district heating system have been optimized. In this paper, the main characteristics of the system have been presented and the impact of the parameters of heating circuit on the system are investigated by the means of energy, exergy, and life cycle cost (LCC) concepts. As a result, the optimum heating circuit has been determined as 60/49C.

Oguz Arslan; M.Arif Ozgur; Ramazan Kose; Abtullah Tugcu

2009-01-01T23:59:59.000Z

386

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 worlds (more)

Chintalapati, Santosh Phani Bhushan

2011-01-01T23:59:59.000Z

387

Iceland Geothermal Conference 2013 - Geothermal Policies and...  

Energy Savers [EERE]

Iceland Geothermal Conference 2013 - Geothermal Policies and Impacts in the U.S. Iceland Geothermal Conference 2013 - Geothermal Policies and Impacts in the U.S. Iceland Geothermal...

388

Geothermal Research and Development Program  

SciTech Connect (OSTI)

Results are reported on adsorption of water vapor on reservoir rocks, physics of injection of water into vapor-dominated geothermal reservoirs, earth-tide effects on downhole pressures, injection optimization at the Geysers, effects of salinity in adsorption experiments, interpreting multiwell pressure data from Ohaaki, and estimation of adsorption parameters from transient experiments.

Not Available

1993-01-25T23:59:59.000Z

389

Evaluation of Current and Feasible Future Use of Geothermal Energy at Chinyunyu Hot Spring, Zambia.  

E-Print Network [OSTI]

?? The main source of geothermal energy is the heat flow from the mantle beneath the Earths surface, generated by the gradual decay of radioactive (more)

Kapasa, Christopher

2014-01-01T23:59:59.000Z

390

Productivity evaluation and influential factor analysis for Sarvak reservoir in South Azadegan oil field, Iran  

Science Journals Connector (OSTI)

Abstract Production pattern of oil wells and influential factors on productivity for the massive carbonate reservoir in the Middle East were researched by productivity evaluation on Sarvak and analysis of properties impact on production. Based on dynamic performance of Sarvak production test, the relationship between daily oil production, tubing pressure, cumulative oil production and choke size was analyzed and reasonable productivity prediction model was established by applying Poettman model, and the effect of physical properties and fluid parameters on productivity were analyzed further by numerical simulation. The study shows that daily oil production is linearly correlated with oil pressure under certain working regime, and daily oil production is power law correlated with choke sizes before and after working regime adjustment. The average designed single well productivity should be about 270 m3/d by depletion to ensure a three-year plateau period. Sarvak is a blocky carbonate reservoir, when developed with horizontal wells, interbeds distributed between layers and permeability property have the strongest impact on production of horizontal wells. So, highly deviated wells should be used to reduce the effect of interbeds and acidizing should be considered to improve the reservoir physical properties.

Hui LIU; Rui GUO; Junchang DONG; Li LIU; Yang LIU; Yingjie YI

2013-01-01T23:59:59.000Z

391

Chapter 12 - Geothermal Energy  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses where the earth's thermal energy is sufficiently concentrated for economic use, the various types of geothermal systems, the production and utilization of the resource, and the environmental benefits and costs of geothermal production. Earth scientists quantify the energy and temperature in the earth in terms of heat flow and temperature gradient. The heat of the earth is derived from two components: the heat generated by the formation of the earth, and heat generated by radioactive decay of elements in the upper parts of the earth. The word geothermal comes from the combination of the Greek words go, meaning earth, and thrm, meaning heat. Geothermal resources are concentrations of the earth's heat, or geothermal energy, that can be extracted and used economically now or in the reasonable future. The earth contains an immense amount of heat but the heat generally is too diffuse or deep for economic use. Hence, the search for geothermal resources focuses on those areas of the earth's crust where geological processes have raised temperatures near enough to the surface that the heat contained can be utilized. Currently, only concentrations of heat associated with water in permeable rocks can be exploited economically. These systems are known as hydrothermal geothermal systems. All commercial geothermal production is currently restricted to geothermal systems that are sufficiently hot for the use and that contain a reservoir with sufficient available water and productivity for economic development. Geothermal energy is one of the cleaner forms of energy now available in commercial quantities. Use of geothermal energy avoids the problems of acid rain and greatly reduces greenhouse gas emissions and other forms of air pollution.

Joel L. Renner

2008-01-01T23:59:59.000Z

392

The evaluation of a 4000-home geothermal heat pump retrofit at Fort Polk, Louisiana: Final Report  

SciTech Connect (OSTI)

This report documents an independent evaluation of an energy retrofit of 4,003 family housing units at Fort Polk, Louisiana, under an energy savings performance contract (ESPC). Replacement of the heating, cooling, and water heating systems in these housing units with geothermal heat pumps (GHPs) anchored the retrofit; low-flow shower heads and compact fluorescent lighting were also installed, as well as attic insulation where needed. Statistically valid findings indicate that the project will save 25.8 million kWh, or 32.5% of the pre-retrofit whole-community electrical consumption, and 100% of the whole-community natural gas previously used for space conditioning and water heating (260,000 therms) in a typical meteorological year. At the end-use level, the GHPs were found to save about 42% of the pre-retrofit electrical consumption for heating, cooling, and water heating in housing units that were all-electric in the pre-retrofit period. This report also demonstrates an improved method of predicting energy savings. Using an engineering model calibrated to pre-retrofit energy use data collected in the field, the method predicted actual energy savings on one of the electric feeders at Fort Polk with a very high degree of accuracy. The accuracy of this model was in turn dependent on data-calibrated models of the geothermal heat pump and ground heat exchanger that are described in this report. In addition this report documents the status of vertical borehole ground heat exchanger (BHEx) design methods at the time this project was designed, and demonstrates methods of using data collected from operating GHP systems to benchmark BHEx design methods against a detailed engineering model calibrated to date. The authors also discuss the ESPC`s structure and implementation and how the experience gained here can contribute to the success of future ESPCs.

Hughes, P.J.; Shonder, J.A.

1998-03-01T23:59:59.000Z

393

Optimized multicomponent vs. classical geothermometry: Insights from modeling studies at the Dixie Valley geothermal area  

Science Journals Connector (OSTI)

Abstract A new geothermometry approach is explored, incorporating multicomponent geothermometry coupled with numerical optimization to provide more confident estimates of geothermal reservoir temperatures when results of classical geothermometers are inconsistent. This approach is applied to geothermal well and spring waters from the Dixie Valley geothermal area (Nevada), to evaluate the influence of salt brines mixing and dilution of geothermal fluids on calculated temperatures. The main advantage of the optimized multicomponent method over classical geothermometers is its ability to quantify the extent of dilution and gas loss experienced by a geothermal fluid, and to optimize other poorly constrained or unknown parameters (such as Al and Mg concentrations), allowing the reconstruction of the deep reservoir fluid composition and therefore gaining confidence in reservoir temperatures estimations. Because the chemical evolution of deep geothermal fluids is a combination of multiple time-dependent processes that take place when these fluids ascend to the surface, reactive transport modeling is used to assess constraints on the application of solute geothermometers. Simulation results reveal that Al and Mg concentrations of ascending fluids are sensitive to mineral precipitationdissolution affecting reservoir temperatures inferred with multicomponent geothermometry. In contrast, simulations show that the concentrations of major elements such as Na, K, and SiO2 are less sensitive to re-equilibration. Geothermometers based on these elements give reasonable reservoir temperatures in many cases, except when dilution or mixing with saline waters has taken place. Optimized multicomponent geothermometry yields more representative temperatures for such cases. Taking into account differences in estimated temperatures, and chemical compositions of the Dixie Valley thermal waters, a conceptual model of two main geothermal reservoirs is proposed. The first reservoir is located along the Stillwater range normal fault system and has an estimated temperature of 240260C. It covers the area corresponding to the geothermal field but could extend towards the south-west where deep temperatures of 200225C are estimated. The second reservoir has an estimated temperature of 175190C and extends from well 62-21 to northeastern Hyder, Lower Ranch, Fault Line, and Jersey springs.

L. Peiffer; C. Wanner; N. Spycher; E.L. Sonnenthal; B.M. Kennedy; J. Iovenitti

2014-01-01T23:59:59.000Z

394

Simulation studies to evaluate the effect of fracture closure on the performance of naturally fractured reservoirs. Annual report  

SciTech Connect (OSTI)

The first of a three-year research program to evaluate the effect of fracture closure on the recovery of oil and gas from naturally fractured reservoirs has been completed. The objectives of the study are to (1) evaluate the reservoir conditions where fracture closure is significant, and (2) evaluate innovative fluid injection techniques capable of maintaining pressure within the reservoir. Simulation studies were conducted with a dual porosity simulator capable of simulating the performance of vertical and horizontal wells. Each simulator was initialized using properties typical of the Austin Chalk reservoir in Pearsall Field, Texas. Simulations of both vertical and horizontal well performance were made assuming that fracture permeability was insensitive to pressure change. Sensitivity runs indicate that the simulator is predicting the effects of critical reservoir parameters in a logical and consistent manner. The results to-date confirm that horizontal wells can increase both oil recovery rate and total oil recovery from naturally fractured reservoirs. The year one simulation results will provide the baseline for the ongoing study which will evaluate the performance degradation caused by the sensitivity of fracture permeability to pressure change, and investigate fluid injection pressure maintenance as a means to improve oil recovery performance. The study is likely to conclude that fracture closure decreases oil recovery and that pressure support achieved through fluid injection could be beneficial in improving recovery.

Not Available

1991-10-01T23:59:59.000Z

395

Geothermal Electricity Production Basics | Department of Energy  

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

Electricity Production Basics Electricity Production Basics Geothermal Electricity Production Basics August 14, 2013 - 1:49pm Addthis A photo of steam emanating from geothermal power plants at The Geysers in California. Geothermal energy originates from deep within the Earth and produces minimal emissions. Photo credit: Pacific Gas & Electric Heat from the earth-geothermal energy-heats water that has seeped into underground reservoirs. These reservoirs can be tapped for a variety of uses, depending on the temperature of the water. The energy from high-temperature reservoirs (225°-600°F) can be used to produce electricity. In the United States, geothermal energy has been used to generate electricity on a large scale since 1960. Through research and development, geothermal power is becoming more cost-effective and competitive with

396

Evaluation and Ranking of Geothermal Resources for Electrical Generation or Electrical Offset in Idaho, Montana, Oregon and Washington. Volume I.  

SciTech Connect (OSTI)

The objective was to consolidate and evaluate all geologic, environmental, and legal and institutional information in existing records and files, and to apply a uniform methodology to the evaluation and ranking of sites to allow the making of creditable forecasts of the supply of geothermal energy which could be available in the region over a 20 year planning horizon. A total of 1265 potential geothermal resource sites were identified from existing literature. Site selection was based upon the presence of thermal and mineral springs or wells and/or areas of recent volcanic activity and high heat flow. 250 sites were selected for detailed analysis. A methodology to rank the sites by energy potential, degree of developability, and cost of energy was developed. Resource developability was ranked by a method based on a weighted variable evaluation of resource favorability. Sites were ranked using an integration of values determined through the cost and developability analysis. 75 figs., 63 tabs.

Bloomquist, R. Gordon

1985-06-01T23:59:59.000Z

397

Fluid Circulation and Heat Extraction from Engineered Geothermal...  

Open Energy Info (EERE)

from Engineered Geothermal Reservoirs Abstract A large amount of fluid circulation and heat extraction (i.e., thermal power production) research and testing has been conducted...

398

DOE Offers Loan Guarantees to Geothermal Projects in Nevada and...  

Energy Savers [EERE]

southeastern Oregon, drawing on funds from the American Reinvestment and Recovery Act. Geothermal power plants generally draw on underground reservoirs of hot water or steam,...

399

Characterization Of Fracture Patterns In The Geysers Geothermal...  

Open Energy Info (EERE)

navigation, search OpenEI Reference LibraryAdd to library Report: Characterization Of Fracture Patterns In The Geysers Geothermal Reservoir By Shear-Wave Splitting Abstract The...

400

Monitoring and Modeling Fluid Flow in a Developing Enhanced Geothermal...  

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

Salak geothermal field in Indonesia. The ultimate goal is to characterize subsurface fracture system and reservoir permeability (possibly, their temporal evolution) using...

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Imaging Structure With Fluid Fluxes At The Bradys Geothermal...  

Open Energy Info (EERE)

defining an operating geothermal reservoir's lateral extent and hydrologically active fracture systems. InSAR reveals millimeter-level surface change due to volume change in the...

402

Concept Testing and Development at the Raft River Geothermal...  

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

at the Raft River Geothermal Field, Idaho The Role of Geochemistry and Stress on Fracture Development and Proppant Behavior in EGS Reservoirs Economic Impact Analysis for EGS...

403

Fracture Characterization in Enhanced Geothermal Systems by Wellbore...  

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

5 4.6.4 Fracture Characterization in Enhanced Geothermal Systems by Wellbore and Reservoir Analysis Presentation Number: 031 Investigator: Horne, Roland (Stanford University)...

404

Enhanced Geothermal System (EGS) Fact Sheet | Department of Energy  

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

System at the Northwest Geysers Geothermal Field, California EA-1733: Final Environmental Assessment Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir...

405

Three-dimensional Modeling of Fracture Clusters in Geothermal...  

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

1 4.6.1 Three-dimensional Modeling of Fracture Clusters in Geothermal Reservoirs Presentation Number: 028 Investigator: Ghassemi, Ahmad (Texas A&M University) Objectives: To...

406

Water Use in the Development and Operations of Geothermal Power...  

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

enhanced geothermal systems (EGS) that rely on engineering a productive reservoir where heat exists but water availability or permeability may be limited. Chapter 3 describes the...

407

Geothermal: Sponsored by OSTI -- Economics of Developing Hot...  

Office of Scientific and Technical Information (OSTI)

Economics of Developing Hot Stratigraphic Reservoirs Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications...

408

Conduction-Dominated Geothermal Systems | Open Energy Information  

Open Energy Info (EERE)

Making. In: Proceedings. Thirty-Ninth Workshop on Geothermal Reservoir Engineering; 20140224; Stanford, California. Stanford, California: Stanford University; p. 8 Inga...

409

The Future of Geothermal Energy  

Broader source: Energy.gov [DOE]

The Future of Geothermal Energy report is an evaluation of geothermal energy as a major supplier of energy in the United States. An 18-member assessment panel with broad experience and expertise...

410

Characterizing Structural Controls of EGS Candidate and Conventional Geothermal Reservoirs in the Great Basin: Developing Successful Exploration Strategies in Extended Terranes  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Develop catalogue of favorable structural environments and models; improve site-specific targeting of resources through detailed studies of representative sites; and compare structural controls and models in different tectonic settings.

411

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Project Summary. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate quantitative characterization of temperature distributions and surface area available for heat transfer in EGS.

412

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Nevada Test And Training Range Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Nevada Test And Training Range Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content

413

Geothermal/Environment | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Environment Geothermal/Environment < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Environmental Impact Life-Cycle Assessments Environmental Regulations Regulatory Roadmap The Geysers - a dry steam geothermal field in California emits steam into the atmosphere. The impact that geothermal energy has on the environment depends on the type of cooling and conversion technologies used. Environmental impacts are often discussed in terms of: Water Consumption Geothermal power production utilizes water in two major ways. The first method, which is inevitable in geothermal production, uses hot water from an underground reservoir to power the facility. The second would be

414

Marysville Mt Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Marysville Mt Geothermal Area Marysville Mt Geothermal Area (Redirected from Marysville Mt Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Marysville Mt Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Montana Exploration Region: Other GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

415

Florida Mountains Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Florida Mountains Geothermal Area Florida Mountains Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Florida Mountains Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

416

Fort Bliss Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Fort Bliss Geothermal Area Fort Bliss Geothermal Area (Redirected from Fort Bliss Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Fort Bliss Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (22) 10 References Area Overview Geothermal Area Profile Location: Texas Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

417

Glass Buttes Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Glass Buttes Geothermal Area Glass Buttes Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Glass Buttes Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (14) 10 References Area Overview Geothermal Area Profile Location: Oregon Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

418

Separation Creek Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Separation Creek Geothermal Area Separation Creek Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Separation Creek Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Area Overview Geothermal Area Profile Location: Oregon Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

419

Socorro Mountain Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Socorro Mountain Geothermal Area Socorro Mountain Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Socorro Mountain Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (10) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

420

Jemez Mountain Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Jemez Mountain Geothermal Area Jemez Mountain Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Jemez Mountain Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Marysville Mt Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Marysville Mt Geothermal Area Marysville Mt Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Marysville Mt Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (7) 10 References Area Overview Geothermal Area Profile Location: Montana Exploration Region: Other GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

422

New River Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

New River Geothermal Area New River Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: New River Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (13) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

423

New River Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

New River Geothermal Area New River Geothermal Area (Redirected from New River Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: New River Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (13) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

424

Fort Bliss Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Fort Bliss Geothermal Area Fort Bliss Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Fort Bliss Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (22) 10 References Area Overview Geothermal Area Profile Location: Texas Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

425

Glass Buttes Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Glass Buttes Geothermal Area Glass Buttes Geothermal Area (Redirected from Glass Buttes Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Glass Buttes Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (1) 9 Exploration Activities (14) 10 References Area Overview Geothermal Area Profile Location: Oregon Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

426

Obsidian Cliff Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Obsidian Cliff Geothermal Area Obsidian Cliff Geothermal Area (Redirected from Obsidian Cliff Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Obsidian Cliff Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: California Exploration Region: Gulf of California Rift Zone GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

427

Jemez Pueblo Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Jemez Pueblo Geothermal Area Jemez Pueblo Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Jemez Pueblo Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

428

Jemez Pueblo Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Jemez Pueblo Geothermal Area Jemez Pueblo Geothermal Area (Redirected from Jemez Pueblo Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Jemez Pueblo Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

429

Socorro Mountain Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Socorro Mountain Geothermal Area Socorro Mountain Geothermal Area (Redirected from Socorro Mountain Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Socorro Mountain Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (10) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

430

Lester Meadow Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lester Meadow Geothermal Area Lester Meadow Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lester Meadow Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: Washington Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

431

Mt Ranier Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Mt Ranier Geothermal Area Mt Ranier Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Mt Ranier Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Washington Exploration Region: Cascades GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant Developing Power Projects: 0

432

Jemez Mountain Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Jemez Mountain Geothermal Area Jemez Mountain Geothermal Area (Redirected from Jemez Mountain Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Jemez Mountain Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (3) 10 References Area Overview Geothermal Area Profile Location: New Mexico Exploration Region: Rio Grande Rift GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

433

Thermodynamic and economic evaluations of a geothermal district heating system using advanced exergy-based methods  

Science Journals Connector (OSTI)

Abstract In this paper, a geothermal district heating system (GDHS) is comparatively evaluated in terms of thermodynamic and economic aspects using advanced exergy-based methods to identify the potential for improvement, the interactions among system components, and the direction and potential for energy savings. The actual operational data are taken from the Sarayky GDHS, Turkey. In the advanced exergetic and exergoeconomic analyses, the exergy destruction and the total operating cost within each component of the system are split into endogenous/exogenous and unavoidable/avoidable parts. The advantages of these analyses over conventional ones are demonstrated. The results indicate that the advanced exergy-based method is a more meaningful and effective tool than the conventional one for system performance evaluation. The exergetic efficiency and the exergoeconomic factor of the overall system for the Sarayky GDHS were determined to be 43.72% and 5.25% according to the conventional tools and 45.06% and 12.98% according to the advanced tools. The improvement potential and the total cost-savings potential of the overall system were also determined to be 2.98% and 14.05%, respectively. All of the pumps have the highest improvement potential and total cost-savings potential because the pumps were selected to have high power during installation at the Sarayky GDHS.

Mehmet Tan; Ali Keeba?

2014-01-01T23:59:59.000Z

434

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:...

435

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...

436

Geothermal Energy | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Overview Technologies Resources Market Data Geothermal Topics Data Resources Financing Permitting & Policy Links Geothermal Energy The Sierra Nevada Mountains provide a spectacular backdrop for a cooling tower array at the ORMAT Mammoth Geothermal Power Plant in Central California. Geothermal energy is heat extracted from the Earth. A wide range of temperatures can be suitable for using geothermal energy, from room temperature to above 300° F.[1] This heat can be drawn from various depths, ranging from the shallow ground (the upper 10 feet beneath the surface of the Earth) that maintains a relatively constant temperature of approximately 50° to 60° F, to reservoirs of extremely hot water and steam located several miles deep into the Earth.[2][3]

437

Geothermal development plan: Maricopa county  

SciTech Connect (OSTI)

Maricopa county is the area of Arizona receiving top priority since it contains over half of the state's population. The county is located entirely within the Basin and Range physiographic region in which geothermal resources are known to occur. Several approaches were taken to match potential users to geothermal resources. One approach involved matching some of the largest facilities in the county to nearby geothermal resources. Other approaches involved identifying industrial processes whose heat requirements are less than the average assessed geothermal reservoir temperature of 110/sup 0/C (230/sup 0/F). Since many of the industries are located on or near geothermal resources, geothermal energy potentially could be adapted to many industrial processes.

White, D.H.

1981-01-01T23:59:59.000Z

438

Thermo-Poroelastic Modeling of Reservoir Stimulation and Microseismicity Using Finite Element Method with Damage Mechanics  

E-Print Network [OSTI]

Stress and permeability variations around a wellbore and in the reservoir are of much interest in petroleum and geothermal reservoir development. Water injection causes significant changes in pore pressure, temperature, and stress in hot reservoirs...

Lee, Sang Hoon

2012-02-14T23:59:59.000Z

439

Lost circulation in geothermal wells: survey and evaluation of industry experience  

SciTech Connect (OSTI)

Lost circulation during drilling and completion of geothermal wells can be a severe problem, particularly in naturally fractured and/or vugular formations. Geothermal and petroleum operators, drilling service companies, and independent consultants were interviewed to assess the lost circulation problem in geothermal wells and to determine general practices for preventing lost circulation. This report documents the results and conclusions from the interviews and presents recommendations for needed research. In addition, a survey was also made of the lost circulation literature, of currently available lost circulation materials, and of existing lost circulation test equipment.

Goodman, M.A.

1981-07-01T23:59:59.000Z

440

An Evaluation of the Effects of Geothermal Energy Development on Aquatic Biota in the Gysers Area of California  

E-Print Network [OSTI]

28. White, J . 1974. Geothermal energy i s not nonpolluting.required t o develop geothermal energy. American Water WorksOF THE EFFECTS OF GEOTHERMAL ENERGY DEVELOPMENT ON AQUATIC

Resh, Vincent H.; Flynn, Thomas S.; Lamberti, Gary A; McElravy, Eric

1979-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Simulation studies to evaluate the effect of fracture closure on the performance of naturally fractured reservoirs. Annual report  

SciTech Connect (OSTI)

The second year of this three-year research program to evaluate the effect of fracture closure on the recovery of oil and gas from naturally fractured reservoirs has been completed. The overall objectives of the study are to: (1) evaluate the reservoir conditions where fracture closure is significant, and (2) evaluate innovative fluid injection techniques capable of maintaining pressure within the reservoir. Simulation studies have been conducted with a dual porosity simulator capable of simulating the performance of vertical and horizontal wells. Each simulation model has been initialized with properties typical of the Austin Chalk reservoir in Pearsall Field, Texas. During year one, simulations of both vertical and horizontal well performance were made assuming that fracture permeability was insensitive to pressure charge. The results confirmed that horizontal wells could increase both rate of oil recovery and total oil recovery from naturally fractured reservoirs. During the second year the performances of the same vertical and horizontal wells were evaluated with the assumption that fracture permeability was a function of reservoir pressure. This required repetition of most of the natural depletion cases simulated in year one while invoking the pressure-sensitive fracture permeability option. To investigate sensitivity to in situ stress, two stress conditions were simulated for each primary variable. The water injection cases, begun in year one, were extended to include most of the reservoir parameters investigated for natural depletion, including fracture permeability as a function of net stress and the use of horizontal wells. The results thus far confirm that pressure-sensitive fractures degrade well performance and that the degradation is reduced by water injection pressure maintenance. Furthermore, oil recovery can be significantly increased by water injection pressure maintenance.

Not Available

1992-11-01T23:59:59.000Z

442

Property:SanyalTempReservoir | Open Energy Information  

Open Energy Info (EERE)

SanyalTempReservoir SanyalTempReservoir Jump to: navigation, search Property Name SanyalTempReservoir Property Type Page Description see Sanyal_Temperature_Classification Allows Values Extremely Low Temperature;Very Low Temperature;Low Temperature;Moderate Temperature;High Temperature;Ultra High Temperature;Steam Field Pages using the property "SanyalTempReservoir" Showing 16 pages using this property. A Amedee Geothermal Area + Very Low Temperature + B Beowawe Hot Springs Geothermal Area + Moderate Temperature + Blue Mountain Geothermal Area + High Temperature + C Chena Geothermal Area + Very Low Temperature + D Desert Peak Geothermal Area + Moderate Temperature + K Kilauea East Rift Geothermal Area + High Temperature + L Lightning Dock Geothermal Area + High Temperature +

443

An economic comparison and evaluation of two geothermal district heating systems for advanced exergoeconomic analysis  

Science Journals Connector (OSTI)

Abstract This paper refers to an economic comparison and evaluation of two geothermal district heating systems (GDHSs) under same reference state condition and mechanic/economic parameters by using an advanced exergoeconomic analysis. In this analysis, costs of investment and exergy destruction of each component for the thermal systems such as the Afyon and Sarayky \\{GDHSs\\} were split into endogenous/exogenous and unavoidable/avoidable parts, and were also compared with each other for the first time. The results obtained show that the advanced exergoeconomic analysis makes the information more accurate and useful, and supplies additional information that cannot be provided by the conversional analysis. Furthermore, the Afyon GDHS can be made more cost effectiveness, removing the system components irreversibilities, technical-economic limitations, and poorly chosen manufacturing methods, according to the Sarayky GDHS. The majority of the components in the Sarayky GDHS are to operate more economically than those in the Afyon GDHS. As a result, the usefulness of this method was clearly demonstrated comparing both the systems.

P?nar Keeba?; Harun Gkgedik; Mehmet Ali Alkan; Ali Keeba?

2014-01-01T23:59:59.000Z

444

Evaluation of geothermal energy in Arizona. Quarterly topical progress report, January 1, 1980-March 31, 1981  

SciTech Connect (OSTI)

The tasks, objectives and completed work are discussed for the legislative and institutional program, cities program, geothermal applications utilization technology, and outreach. The work on the Maryvale Terrace development and the New Mexico Energy Institute are described. (MHR)

White, D.H.; Goldstone, L.A.; Malysa, L.

1981-03-31T23:59:59.000Z

445

Evaluation of Engineered Geothermal Systems as a Heat Source for Oil Sands Production in Northern Alberta  

Science Journals Connector (OSTI)

The project costs presented in the following section are intended ... give a basic understanding of the economics of geothermal heat as an energy source for oil sands extraction. Long et...2005) reported that oil...

V. Pathak; T. Babadagli; J. A. Majorowicz; M. J. Unsworth

2014-06-01T23:59:59.000Z

446

Geothermal Blog  

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

96 Geothermal Blog en Geothermal Blog http:energy.goveeregeothermal-blog Geothermal Blog

447

Snake River Geothermal Project - Innovative Approaches to Geothermal...  

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

Snake River Geothermal Project - Innovative Approaches to Geothermal Exploration Snake River Geothermal Project - Innovative Approaches to Geothermal Exploration DOE Geothermal...

448

Documenting Visual Quality Controls on the Evaluation of Petroleum Reservoir-rocks through  

E-Print Network [OSTI]

) processes control the distribution of porosity and permeability within petroleum reservoir rocks section in a time unit. The values and distribution of porosity and permeability within reservoir rocks and prediction of the quality (porosity, permeability) of petroleum reservoirs during their exploration

Oliveira, Manuel M.

449

Geothermal electric cash flow model (GCFM)  

SciTech Connect (OSTI)

The Geothermal Cash Flow Model (GCFM) is a user-interactive computer model that estimates the costs and cash flow patterns of geothermal electric development projects. It was developed as a financial analysis tool for the US Department of Energy Geothermal Loan Guaranty Program. It contains a power-plant sizing and costing routine that is useful for preliminary feasibility studies of geothermal projects. The model can be operated using either a few preliminary estimates of geothermal resource characteristics or detailed estimates from reservoir engineering and power plant engineering studies. GCFM is available for public distribution.

Entingh, D.J.; Keimig, M.A.

1981-10-01T23:59:59.000Z

450

Geothermal Tomorrow  

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

Eritrea, and Djibouti. Kenya was the first of these countries to develop geothermal energy and has the largest geothermal plant in Africa-near Naivasha (Olkaria), yield- ing...

451

Geothermal/Water Use | Open Energy Information  

Open Energy Info (EERE)

Geothermal/Water Use Geothermal/Water Use < Geothermal Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Land Use Leasing Exploration Well Field Power Plant Transmission Environment Water Use Print PDF Geothermal Water Use General Regulatory Roadmap The Geysers in northern California is the world's largest producer of geothermal power. The dry-steam field has successfully produced power since the early 1960s when Pacific Gas & Electric installed the first 11-megawatt plant. The dry steam plant consumes water by emitting water vapor into the atmosphere. Geothermal power production utilizes water in two major ways: The first method, which is inevitable in geothermal production, uses hot water from an underground reservoir to power the facility. The second is using water for cooling (for some plants only).

452

G. M. Koelemay well No. 1, Jefferson County, Texas. Volume I. Completion and testing: testing geopressured geothermal reservoirs in existing wells. Final report  

SciTech Connect (OSTI)

The acquisition, completion, and testing of a geopressured-geothermal well are described. The following are covered: geology; petrophysics; re-entry and completion operations - test well; drilling and completion operations - disposal well; test objectives; surface testing facilities; pre-test operations; test sequence; test results and analysis; and return of wells and location to operator. (MHR)

Not Available

1980-01-01T23:59:59.000Z

453

Analysis of Low-Temperature Utilization of Geothermal Resources Geothermal  

Open Energy Info (EERE)

Temperature Utilization of Geothermal Resources Geothermal Temperature Utilization of Geothermal Resources Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Analysis of Low-Temperature Utilization of Geothermal Resources Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Geothermal Analysis Project Description In this proposal West Virginia University (WVU) outline a project which will perform an in-depth analysis of the low-temperature geothermal resources that dominate the eastern half of the United States. Full realization of the potential of what might be considered "low-grade" geothermal resources will require the examination many more uses for the heat than traditional electricity generation. To demonstrate that geothermal energy truly has the potential to be a national energy source the project will be designing, assessing, and evaluating innovative uses for geothermal-produced water such as hybrid biomass-geothermal cogeneration of electricity and district heating and efficiency improvements to the use of cellulosic biomass in addition to utilization of geothermal in district heating for community redevelopment projects.

454

Technical and economic evaluation of selected compact drill rigs for drilling 10,000 foot geothermal production wells  

SciTech Connect (OSTI)

This report summarizes the investigation and evaluation of several {open_quotes}compact{close_quotes} drill rigs which could be used for drilling geothermal production wells. Use of these smaller rigs would save money by reducing mobilization costs, fuel consumption, crew sizes, and environmental impact. Advantages and disadvantages of currently-manufactured rigs are identified, and desirable characteristics for the {open_quotes}ideal{close_quotes} compact rig are defined. The report includes a detailed cost estimate of a specific rig, and an evaluation of the cost/benefit ratio of using this rig. Industry contacts for further information are given.

Huttrer, G.W. [Geothermal Management Company, Inc., Frisco, CO (United States)

1997-11-01T23:59:59.000Z

455

Geothermal Energy Association Recognizes the National Geothermal...  

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

Geothermal Energy Association Recognizes the National Geothermal Data System Geothermal Energy Association Recognizes the National Geothermal Data System July 29, 2014 - 8:20am...

456

Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010  

E-Print Network [OSTI]

Proceedings World Geothermal Congress 2010 Bali, Indonesia, 25-29 April 2010 1 Fracture of the fracture network organization. In the specific case of the Soultz-Sous-Forêts geothermal reservoir, a new to constrain stochastic simulation of a discrete fracture network (DFN) in the geothermal reservoir. 1

Paris-Sud XI, Université de

457

Gulf Coast geopressured-geothermal reservoir simulation: final task report (year 4). Final report, 1 August 1979-31 July 1980  

SciTech Connect (OSTI)

The results of the short-term production tests run on the Pleasant Bayou No. 2 well are summarized. These tests were analyzed using conventional pressure test analysis methods. The effects of reservoir heterogeneties onm production behavior and, in particular, permeability distribution and faulting of reservoir sand were studied to determine the sensitivity of recovery to these parameters. A study on the effect of gas buildup around a producing well is reported. (MHR)

MacDonald, R.C.; Sepehrnoori, K.; Ohkuma, H.

1982-10-01T23:59:59.000Z

458

Low Enthalpy Geothermal Energy Resources in Denmark  

Science Journals Connector (OSTI)

The deep oil exploration drillings in Denmark have shown that especially the Danish Embayment contains low enthalpy geothermal resources associated with warm aquifers. The most promising reservoirs have been f...

Niels Balling; Svend Saxov

1979-01-01T23:59:59.000Z

459

Low enthalpy geothermal energy resources in Denmark  

Science Journals Connector (OSTI)

The deep oil exploration drillings in Denmark have shown that especially the Danish Embayment contains low enthalpy geothermal resources associated with warm aquifers. The most promising reservoirs have been f...

Niels Balling; Svend Saxov

460

International Partnership for Geothermal Technology - 2012 Peer...  

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

Systems (EGS) IEA-GIA ExCo - National Geothermal Data System and Online Tools The Role of Geochemistry and Stress on Fracture Development and Proppant Behavior in EGS Reservoirs...

Note: This page contains sample records for the topic "geothermal reservoir evaluation" 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

Experimental Study of Water Vapor Adsorption on Geothermal  

E-Print Network [OSTI]

Geothermal Program under Department of Energy Grant No. DE-FG07-90IDI2934,and by the Department of PetroleumSGP-TR-148 Experimental Study of Water Vapor Adsorption on Geothermal Reservoir Rocks Shubo Shang Engineering, Stanford University Stanford Geothermal Program Interdisciplinary Research in Engineering

Stanford University

462

Geothermal potential for commercial and industrial direct heat applications in Salida, Colorado. Final report  

SciTech Connect (OSTI)

The Salida Geothermal Prospect (Poncha Hot Springs) was evaluated for industrial and commercial direct heat applications at Salida, Colorado, which is located approximately five miles east of Poncha Hot Springs. Chaffee Geothermal, Ltd., holds the geothermal leases on the prospect and the right-of-way for the main pipeline to Salida. The Poncha Hot Springs are located at the intersection of two major structural trends, immediately between the Upper Arkansas graben and the Sangre de Cristo uplift. Prominent east-west faulting occurs at the actual location of the hot springs. Preliminary exploration indicates that 1600 gpm of geothermal fluid as hot as 250/sup 0/F is likely to be found at around 1500 feet in depth. The prospective existing endusers were estimated to require 5.02 x 10/sup 10/ Btu per year, but the total annual amount of geothermal energy available for existing and future endusers is 28.14 x 10/sup 10/ Btu. The engineering design for the study assumed that the 1600 gpm would be fully utilized. Some users would be cascaded and the spent fluid would be cooled and discharged to nearby rivers. The economic analysis assumes that two separate businesses, the energy producer and the energy distributor, are participants in the geothermal project. The producer would be an existing limited partnership, with Chaffee Geothermal, Ltd. as one of the partners; the distributor would be a new Colorado corporation without additional income sources. Economic evaluations were performed in full for four cases: the Base Case and three alternate scenarios. Alternate 1 assumes a three-year delay in realizing full production relative to the Base Case; Alternate 2 assumes that the geothermal reservoir is of a higher quality than is assumed for the Base Case; and Alternate 3 assumes a lower quality reservoir. 11 refs., 34 figs., 40 tabs.

Coe, B.A.; Dick, J.D.; Galloway, M.J.; Gross, J.T.; Meyer, R.T.; Raskin, R.; Zocholl, J.R.

1982-10-01T23:59:59.000Z

463

Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal Reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Seismic Mapping Of The Subsurface Structure At The Ryepatch Geothermal Reservoir Details Activities (1) Areas (1) Regions (0) Abstract: In 1998 a 3-D surface seismic survey was conducted to explore the structure of the Rye Patch geothermal reservoir (Nevada) to determine if modern seismic techniques could be successfully applied in geothermal environments. Furthermore, it was intended to map the structural features which may control geothermal production in the reservoir. The results

464

Development of the Las Tres Virgenes geothermal field, Mexico  

SciTech Connect (OSTI)

Ecological and reservoir characteristics of the Las Tres Virgenes geothermal field are presented. Pressure and temperature logs show a liquid dominated reservoir at 245{degrees}C and 61 bars. The granodeoritic with moderate fracturing rock hosts the geothermal reservoir. Production characteristics of well LV-3 were recently evaluated, produced fluids have geothermal genesis and the electrical output is 1.5 MW. At present, LV-1 is on drilling step. According with electrical needs and behaviour of the production characteristics of the zone, CFE has projected the installation in the near future one 2 MW unit. The characteristics of this turbine are specified, also the ecological criterion. A 115 KV line is needed in order to integrate this project to the existing grid. In 1995, four new deviated wells will be drilled in order to prove-up 4 MW power capacity and to explore new areas. Two of these wells will be located on the same site as of LV-3. The third well will be drilled on the same site of LV-1. Finally, the fourth injection well will be located 2 km from well LV-3.

Torres-Rodriguez, M.A.; Sanchez-Velasco, R.A.

1995-12-31T23:59:59.000Z

465

Conceptual Model At Coso Geothermal Area (1990) | Open Energy Information  

Open Energy Info (EERE)

Conceptual Model At Coso Geothermal Area (1990) Conceptual Model At Coso Geothermal Area (1990) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Conceptual Model Activity Date 1990 Usefulness useful DOE-funding Unknown Exploration Basis To develop an understanding of the fracture hydrology of the Coso Mountains crystalline terrain and its hydrologic connection to regional groundwater and thermal source Notes An interpreted, conceptually balanced regional cross section that extends from the Sierra Nevada through the geothermal reservoir to the Panamint Mountains is presented. The cross section is constrained by new reflection and refraction seismic data, gravity and magnetic modeling, drilling data from the geothermal reservoir, and published regional geologic mapping. The

466

Logging, Testing and Monitoring Geothermal Wells | Open Energy Information  

Open Energy Info (EERE)

Logging, Testing and Monitoring Geothermal Wells Logging, Testing and Monitoring Geothermal Wells Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Logging, Testing and Monitoring Geothermal Wells Abstract Wells or boreholes are essential components in both geothermal research and utilization as they enable a drastic increase in geothermal energy production beyond natural out-flow as well as providing access deep into the systems, not otherwise possible. Wells also play a vital role in all geothermal reservoir physics (also called reservoir engineering) research, which would be particularly ineffec-tive without the access into geothermal systems provided by wells. During drilling the main reservoir physics research is performed through logging of different parameters as functions

467

SGP-TR-32 STANFORD GEOTHERMAL PROGRAM  

E-Print Network [OSTI]

SGP- TR- 32 STANFORD GEOTHERMAL PROGRAM PROGRESS REPORT NO. 7 t o U. S. DEPARTMENT OF ENERGY Recent Radon Transient Experiments Energy Recovery from Fracture-Stimulated Geothermal Reservoirs 1 2 October 1, 1978 through December 31, 1978. Research is performed under t h e Department of Energy Contract

Stanford University

468

DOE - Office of Legacy Management -- Geothermal Test Facility...  

Office of Legacy Management (LM)

Geothermal Test Facility - 001 FUSRAP Considered Sites Site: Geothermal Test Facility (001) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site...

469

Numerical Investigation of Fractured Reservoir Response to Injection/Extraction Using a Fully Coupled Displacement Discontinuity Method  

E-Print Network [OSTI]

In geothermal reservoirs and unconventional gas reservoirs with very low matrix permeability, fractures are the main routes of fluid flow and heat transport, so the fracture permeability change is important. In fact, reservoir development under...

Lee, Byungtark

2011-10-21T23:59:59.000Z

470

NANOSENSORS AS RESERVOIR ENGINEERING TOOLS TO MAP IN-  

E-Print Network [OSTI]

.................................................................................. 1 1.1.1. The Role of Geothermal Energy........................................................ IN GEOTHERMAL RESERVOIRS By Morgan Ames June 2011 Financial support was provided through the Stanford Geothermal Program under Department of Energy (under contract number DE-FG36-08GO18192). Stanford University Stanford

Stanford University

471

Property:Geothermal/Partner6Website | Open Energy Information  

Open Energy Info (EERE)

Partner6Website Partner6Website Jump to: navigation, search Property Name Geothermal/Partner6Website Property Type URL Description Partner 6 Website (URL) Pages using the property "Geothermal/Partner6Website" Showing 4 pages using this property. C Complete Fiber/Copper Cable Solution for Long-Term Temperature and Pressure Measurement in Supercritical Reservoirs and EGS Wells Geothermal Project + http://www.sensortran.com/ + I Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Geothermal Project + http://www.pitt.edu/ + S Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below Surface-Exposed High-Velocity Rocks Geothermal Project + http://www.sercel.com/ + T The Snake River Geothermal Drilling Project - Innovative Approaches to Geothermal Exploration Geothermal Project + http://www.icdp-online.org/contenido/icdp/front_content.php +

472

Investigation of deep permeable strata in the permian basin for future geothermal energy reserves  

SciTech Connect (OSTI)

This project will investigate a previously unidentified geothermal energy resource, opening broad new frontiers to geothermal development. Data collected by industry during oil and gas development demonstrate deep permeable strata with temperatures {ge} 150 C, within the optimum window for binary power plant operation. The project will delineate Deep Permeable Strata Geothermal Energy (DPSGE) assets in the Permian Basin of western Texas and southeastern New Mexico. Presently, geothermal electrical power generation is limited to proximity to shallow, high-temperature igneous heat sources. This geographically restricts geothermal development. Delineation of a new, less geographically constrained geothermal energy source will stimulate geothermal development, increasing available clean, renewable world energy reserves. This proposal will stimulate geothermal reservoir exploration by identifying untapped and unrealized reservoirs of geothermal energy. DPSGE is present in many regions of the United States not presently considered as geothermally prospective. Development of this new energy source will promote geothermal use throughout the nation.

Erdlac, Richard J., Jr.; Swift, Douglas B.

1999-09-23T23:59:59.000Z

473

Kilauea Southwest Rift And South Flank Geothermal Area | Open Energy  

Open Energy Info (EERE)

Kilauea Southwest Rift And South Flank Geothermal Area Kilauea Southwest Rift And South Flank Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Kilauea Southwest Rift And South Flank Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

474

Mauna Loa Northeast Rift Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Mauna Loa Northeast Rift Geothermal Area Mauna Loa Northeast Rift Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Mauna Loa Northeast Rift Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

475

Cuttings Analysis At Bacca Ranch Geothermal Area (1976) | Open Energy  

Open Energy Info (EERE)

Bacca Ranch Geothermal Area (1976) Bacca Ranch Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Bacca Ranch Geothermal Area (1976) Exploration Activity Details Location Bacca Ranch Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the geologic environment of the geothermal area Notes The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters that help describe the reservoir and overlying cap rock. References Pratt, H. R.; Simonson, E. R. (1 January 1976) Geotechnical studies of geothermal reservoirs Retrieved from "http://en.openei.org/w/index.php?title=Cuttings_Analysis_At_Bacca_Ranch_Geothermal_Area_(1976)&oldid=473907"

476

Lahaina-Kaanapali Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Lahaina-Kaanapali Geothermal Area Lahaina-Kaanapali Geothermal Area (Redirected from Lahaina-Kaanapali Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Lahaina-Kaanapali Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (5) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

477

Valley Of Ten Thousand Smokes Region Geothermal Area | Open Energy  

Open Energy Info (EERE)

Valley Of Ten Thousand Smokes Region Geothermal Area Valley Of Ten Thousand Smokes Region Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Valley Of Ten Thousand Smokes Region Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (8) 10 References Area Overview Geothermal Area Profile Location: Alaska Exploration Region: Alaska Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

478

Under Steamboat Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Under Steamboat Springs Geothermal Area Under Steamboat Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Under Steamboat Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

479

Winnemucca Dry Lake Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Winnemucca Dry Lake Geothermal Area Winnemucca Dry Lake Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Winnemucca Dry Lake Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (1) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Walker-Lane Transition Zone Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

480

Mauna Loa Southwest Rift Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Mauna Loa Southwest Rift Geothermal Area Mauna Loa Southwest Rift Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Mauna Loa Southwest Rift Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

Note: This page contains sample records for the topic "geothermal reservoir evaluation" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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481

Olowalu-Ukumehame Canyon Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Olowalu-Ukumehame Canyon Geothermal Area Olowalu-Ukumehame Canyon Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Olowalu-Ukumehame Canyon Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (4) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

482

Hualalai Northwest Rift Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Hualalai Northwest Rift Geothermal Area Hualalai Northwest Rift Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Hualalai Northwest Rift Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (9) 10 References Area Overview Geothermal Area Profile Location: Hawaii Exploration Region: Hawaii Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed. Add a new Operating Power Plant

483

Cuttings Analysis At Jemez Mountain Geothermal Area (1976) | Open Energy  

Open Energy Info (EERE)

Jemez Mountain Geothermal Area (1976) Jemez Mountain Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Jemez Mountain Geothermal Area (1976) Exploration Activity Details Location Jemez Mountain Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the geologic environment of the geothermal area Notes The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters that help describe the reservoir and overlying cap rock. References Pratt, H. R.; Simonson, E. R. (1 January 1976) Geotechnical studies of geothermal reservoirs Retrieved from "http://en.openei.org/w/index.php?title=Cuttings_Analysis_At_Jemez_Mountain_Geothermal_Area_(1976)&oldid=473910

484

Upper Hot Creek Ranch Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Upper Hot Creek Ranch Geothermal Area Upper Hot Creek Ranch Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Upper Hot Creek Ranch Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure Operating Power Plants: 0 No geothermal plants listed.

485

Cuttings Analysis At Marysville Mountain Geothermal Area (1976) | Open  

Open Energy Info (EERE)

Geothermal Area (1976) Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Marysville Mountain Geothermal Area (1976) Exploration Activity Details Location Marysville Mountain Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the geologic environment of the geothermal area Notes The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters that help describe the reservoir and overlying cap rock. References Pratt, H. R.; Simonson, E. R. (1 January 1976) Geotechnical studies of geothermal reservoirs Retrieved from "http://en.openei.org/w/index.php?title=Cuttings_Analysis_At_Marysville_Mountain_Geothermal_Area_(1976)&oldid=473911"

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