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Note: This page contains sample records for the topic "geothermal reservoir testing" from the National Library of EnergyBeta (NLEBeta).
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1

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...

2

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:...

3

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

4

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

5

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

6

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...

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

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

10

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...

11

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

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

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

16

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

17

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

18

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...

19

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

20

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

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

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

22

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

23

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

24

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...

25

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

26

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...

27

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

28

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

29

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...

30

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

31

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

32

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

33

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...

34

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

35

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

36

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

37

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

38

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":""}]}

39

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

40

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

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

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

42

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

43

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

44

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

45

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

46

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

47

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

48

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

49

geothermal_test.cdr  

Office of Legacy Management (LM)

The Bureau of Land Management (BLM) began studies The Bureau of Land Management (BLM) began studies of the geothermal resources of an area known as the East Mesa site in 1968. In 1978, the U.S. Department of Energy (DOE) became the exclusive operator of the site, which was called the Geothermal Test Facility, and negotiated a right-of-way agreement with BLM to operate the facility. Geothermal test activities were discontinued in 1987 as development of commercial- scale geothermal power began to flourish in the region. In 1993, DOE agreed to remediate the site and return it to BLM. The Geothermal Test Facility is an 82-acre site located on the eastern edge of the Imperial Valley in Imperial County, California. The site is 140 miles east of San Diego and 10 miles north of the Mexico border. Topography of the area is generally flat; the site is at

50

geothermal_test.cdr  

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

Overview Overview The Bureau of Land Management (BLM) began studies of the geothermal resources of an area known as the East Mesa site in 1968. In 1978, the U.S. Department of Energy (DOE) became the exclusive operator of the site, which was called the Geothermal Test Facility, and negotiated a right-of-way agreement with BLM to operate the facility. Geothermal test activities were discontinued in 1987 as development of commercial- scale geothermal power began to flourish in the region. In 1993, DOE agreed to remediate the site and return it to BLM. The Geothermal Test Facility is an 82-acre site located on the eastern edge of the Imperial Valley in Imperial County, California. The site is 140 miles east of San Diego and 10 miles north of the Mexico border. Topography of the area is generally flat; the site is at an elevation of about 28 feet above sea level. The Salton Sea is approximately 40 miles northwest

51

RMOTC - Testing - Geothermal  

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

Geothermal Testing Geothermal Testing Notice: As of July 15th 2013, the Department of Energy announced the intent to sell Naval Petroleum Reserve Number 3 (NPR3). The sale of NPR-3 will also include the sale of all equipment and materials onsite. A decision has been made by the Department of Energy to complete testing at RMOTC by July 1st, 2014. RMOTC will complete testing in the coming year with the currently scheduled testing partners. For more information on the sale of NPR-3 and sale of RMOTC equipment and materials please join our mailing list here. With the existing geologic structure at RMOTC, promising potential exists for Enhanced Geothermal System (EGS) testing. The field also has two reliable water resources for supporting low-temperature geothermal testing.

52

Geothermal Well Completion Tests | Open Energy Information  

Open Energy Info (EERE)

Geothermal Well Completion Tests Geothermal Well Completion Tests Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Well Completion Tests Abstract This paper reviews the measurements that are typically made in a well immediately after drilling is completed - the Completion Tests. The objective of these tests is to determine the properties of the reservoir, and of the reservoir fluid near the well. A significant amount of information that will add to the characterisation of the reservoir and the well, can only be obtained in the period during and immediately after drilling activities are completed. Author Hagen Hole Conference Petroleum Engineering Summer School; Dubrovnik, Croatia; 2008/06/09 Published N/A, 2008 DOI Not Provided Check for DOI availability: http://crossref.org

53

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

54

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

55

geothermal_test.cdr  

Office of Legacy Management (LM)

Energy (DOE) became the exclusive operator of the site, which was called the Geothermal Test Facility, and negotiated a right-of-way agreement with BLM to operate the facility....

56

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

57

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:...

58

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

59

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

60

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

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

62

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

63

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

64

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

65

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

66

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.

67

Nevada Test And Training Range Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Nevada Test And Training Range Geothermal Area Nevada Test And Training Range Geothermal Area (Redirected from Nevada Test And Training Range 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

68

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

69

Tracer Testing At East Mesa Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

Tracer Testing At East Mesa Geothermal Area (1983) Tracer Testing At East Mesa Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1983) Exploration Activity Details Location East Mesa Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Notes 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 volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the

70

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

71

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

72

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

73

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.

74

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

75

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.

76

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

77

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

78

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

79

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

80

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

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

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.

82

Stress Test At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Stress Test At Coso Geothermal Area (2004) Stress Test At Coso Geothermal Area (2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Stress Test At Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Stress Test Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis EGS potential of Coso Geothermal Region Notes A hydraulic fracturing stress test at 3,703 feet TVD was used to constrain a normal faulting and strike-slip faulting stress tensor for this reservoir. The shear and normal stresses resolved on the fracture and fault planes were calculated and used to identify the subset of critically stressed planes that act to maintain permeability within the Coso Geothermal Field. References

83

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.

84

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...

85

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,

86

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

87

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

88

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

89

Tracer Testing At Raft River Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Exploration Basis To develop chemical tracing procedures for geothermal areas. Notes 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 volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the well bore. Increased mixing during quiescent periods, between injection and

90

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

91

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

92

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

93

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

94

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....

95

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

96

National Geothermal Data System Architecture Design, Testing...  

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

Architecture Design, Testing and Maintenance National Geothermal Data System Architecture Design, Testing and Maintenance Project objective: To create the National Geothermal Data...

97

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

98

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

99

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

100

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

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

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":""}]}

102

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":""}]}

103

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...

104

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

105

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

106

Geothermal steam quality testing  

SciTech Connect (OSTI)

Geothermal steam quality and purity have a significant effect on the operational efficiency and life of geothermal steam turbines and accessory equipment. Poor steam processing can result in scaled nozzles/blades, erosion, corrosion, reduced utilization efficiency, and early fatigue failures accelerated by stress corrosion cracking (SCC). Upsets formed by undetected slugs of liquid entering the turbine can cause catastrophic failure. The accurate monitoring and determination of geothermal steam quality/purity is intrinsically complex which often results in substantial errors. This paper will review steam quality and purity relationships, address some of the errors, complexities, calibration and focus on: thermodynamic techniques for evaluating and monitoring steam quality by use of the modified throttling calorimeters.

Jung, D.B. [Two-Phase Engineering & Research, Inc., Santa Rosa, CA (United States)

1995-12-31T23:59:59.000Z

107

Flow Test At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

Flow Test At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Neal Hot...

108

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

109

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

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

Concept Testing and Development at the Raft River Geothermal Field, Idaho Concept Testing and Development at the Raft River Geothermal Field, Idaho DOE 2010 Geothermal Technologies...

110

Concept Testing and Development at the Raft River Geothermal Field, Idaho  

Broader source: Energy.gov [DOE]

Geothermal Technologies Program 2010 Peer Review Concept Testing and Development at the Raft River Geothermal Field, Idaho, for the Engineered Geothermal Systems Demonstration Projects and Low Temperature Exploration and Demonstrations Project Track. Objective to Develop and demonstrate the techniques required to form and sustain EGS reservoirs including combined thermal and hydraulic stimulation and numerical modeling and Improve the performance and output of the Raft River geothermal field by increasing production or injectivity.

111

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

112

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

113

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

114

Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2012) Exploration Activity...

115

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

116

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

117

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...

118

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

119

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.

120

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

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

Flow Test At Coso Geothermal Area (1978) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Coso Geothermal Area (1978) Flow Test At Coso Geothermal Area (1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Flow Test Activity Date 1978 Usefulness not indicated DOE-funding Unknown Notes Flow tests of well CGEH No. 1 were conducted. LBL performed eight temperature surveys after completion of the well to estimate equilibrium reservoir temperatures. Downhole fluid samples were obtained by the U.S. Geological Survey (USGS) and Lawrence Berkeley Laboratory (LBL), and a static pressure profile was obtained. The first test began September 5, 1978 using nitrogen stimulation to initiate flow; this procedure resulted in small flow and subsequent filling of the bottom hole with drill cuttings. The second test, on November 2, 1978, utilized a nitrogen-foam-water mixture to clean residual particles from bottom hole,

122

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

123

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

124

Injectivity Test At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) |  

Open Energy Info (EERE)

Injectivity Test At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Injectivity Test At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Injectivity Test Activity Date Usefulness useful DOE-funding Unknown Notes Fenton Hill HDR site. References Z. V. Dash, H. D. Murphy, R. L. Aamodt, R. G. Aguilar, D. W. Brown, D. A. Counce, H. N. Fisher, C. O. Grigsby, H. Keppler, A. W. Laughlin, R. M. Potter, J. W. Tester, P. E. Trujillo Jr, G. Zyvoloski (1983) Hot Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Retrieved from "http://en.openei.org/w/index.php?title=Injectivity_Test_At_Fenton_Hill_Hdr_Geothermal_Area_(Dash,_Et_Al.,_1983)&oldid=511316"

125

Flow Test At Raft River Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Raft River Geothermal Area (2004) Flow Test At Raft River Geothermal Area (2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Raft River Geothermal Area (2004) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Flow Test Activity Date 2004 Usefulness useful DOE-funding GRED II Notes Geothermal Resource Exploration and Definition Projects Raft River (GRED II): Re-assessment and testing of previously abandoned production wells. The objective of the U.S. Geothermal effort is to re-access the available wellbores, assess their condition, perform extensive testing of the reservoir to determine its productive capacity, and perform a resource utilization assessment. At the time of this paper, all five wells had been

126

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

127

Tracer Testing At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2004) Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the EGS potential of the Coso Geothermal Field Notes A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the reservoir liquid in some of the feed zones boils

128

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

129

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

130

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

131

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.

132

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

133

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

134

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

135

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

136

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

137

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

138

A Test Of The Transiel Method On The Travale Geothermal Field | Open Energy  

Open Energy Info (EERE)

Of The Transiel Method On The Travale Geothermal Field Of The Transiel Method On The Travale Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Test Of The Transiel Method On The Travale Geothermal Field Details Activities (0) Areas (0) Regions (0) Abstract: An original electromagnetic method has been applied to geothermal prospecting on the Travale test site. The results show good correlations between observed polarization anomalies and productive zones. It is believed that these anomalies are related to reduction phenomena that occurred in the overburden (such as pyrite formation) caused by thermochemical exchanges between the reservoir and the overburden above those zones where the reservoir permeability is highest. Author(s): A. Duprat, M. Roudot, S. Spitz Published: Geothermics, 1985

139

National Geothermal Data System Design and Testing | Department...  

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

Design and Testing National Geothermal Data System Design and Testing National Geothermal Data System Design and Testing presentation at the April 2013 peer review meeting held in...

140

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

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

Concept Testing and Development at the Raft River Geothermal Field, Idaho Concept Testing and Development at the Raft River Geothermal Field, Idaho Concept Testing and Development...

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

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

142

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

143

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...

144

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.

145

Injectivity Test At Long Valley Caldera Geothermal Area (Morin...  

Open Energy Info (EERE)

Test At Long Valley Caldera Geothermal Area (Morin, Et Al., 1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Long Valley...

146

DOE and Partners Test Enhanced Geothermal Systems Technologies...  

Office of Environmental Management (EM)

DOE and Partners Test Enhanced Geothermal Systems Technologies DOE and Partners Test Enhanced Geothermal Systems Technologies February 20, 2008 - 4:33pm Addthis DOE has embarked on...

147

Flow Test At Valles Caldera - Sulphur Springs Geothermal Area...  

Open Energy Info (EERE)

Flow Test At Valles Caldera - Sulphur Springs Geothermal Area (Musgrave, Et Al., 1989) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test...

148

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...

149

Low Cost Exploration, Testing, and Development of the Chena Geothermal...  

Open Energy Info (EERE)

Article: Low Cost Exploration, Testing, and Development of the Chena Geothermal Resource Abstract The Chena Hot Springs geothermal field was intensivelyexplored, tested, and...

150

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

151

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

152

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

153

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

154

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

155

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

156

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

157

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

158

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

159

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

160

Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) |...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) Exploration Activity Details Location...

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

Flow Test At Fenton Hill HDR Geothermal Area (Callahan, 1996...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Callahan, 1996) Exploration Activity Details...

162

Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder,...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder, 1991) Exploration Activity Details...

163

Tracer Testing At East Mesa Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1984) Exploration Activity Details Location East Mesa...

164

Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan,...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan, 1996) Exploration Activity Details...

165

Injectivity Test At Dixie Valley Geothermal Area (Benoit, Et...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Dixie Valley Geothermal Area (Benoit, Et Al., 2000) Exploration Activity Details...

166

Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) |...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) Exploration Activity Details Location...

167

Flow Test At Dixie Valley Geothermal Area (Desormier, 1987) ...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Dixie Valley Geothermal Area (Desormier, 1987) Exploration Activity Details Location...

168

Flow Test At Long Valley Caldera Geothermal Area (Farrar, Et...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Long Valley Caldera Geothermal Area (Farrar, Et Al., 2003) Exploration Activity...

169

Injectivity Test At Long Valley Caldera Geothermal Area (Farrar...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Long Valley Caldera Geothermal Area (Farrar, Et Al., 2003) Exploration Activity...

170

Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder,...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder, 1994) Exploration Activity Details...

171

Flow Test At Blue Mountain Geothermal Area (Fairbank Engineering...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity...

172

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

173

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

174

Collection and Analysis of Reservoir Data from Testing and Operation of the  

Open Energy Info (EERE)

Collection and Analysis of Reservoir Data from Testing and Operation of the Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Collection and Analysis of Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Details Activities (1) Areas (1) Regions (0) Abstract: The Raft River 5 MW power plant will be on-line some time this spring. During testing of the supply and injection system prior to plant start-up and during testing of the plant itself, data can be collected and used to calibrate computer models, refine predicted drawdowns and interference effects, monitor changing temperatures, and recalculate reservoir parameters. Analytic methods have been used during reservoir testing at Raft River to calculate reservoir coefficients. However,

175

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.

176

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

177

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

178

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...

179

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

180

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

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

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

182

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

183

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

184

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

185

Integrated Geothermal Well Testing: Test Objectives and Facilities  

SciTech Connect (OSTI)

A new and highly integrated geothermal well test program was designed for three geothermal operators in the US (MCR, RGI and Mapco Geothermal). This program required the design, construction and operation of new well test facilities. The main objectives of the test program and facilities are to investigate the critical potential and worst problems associated with the well and produced fluids in a period of approximately 30 days. Field and laboratory investigations are required to determine and quantify the problems of fluid production, utilization and reinjection. The facilities are designed to handle a flow rate from a geothermal well of one million pounds per hour at a wellhead temperature of approximately 268 C (515 F). The facilities will handle an entire spectrum of temperature and rate conditions up to these limits. All pertinent conditions for future fluid exploitations can be duplicated with these facilities, thus providing critical information at the very early stages of field development. The new well test facilities have been used to test high temperature, liquid-dominated geothermal wells in the Imperial Valley of California. The test facilities still have some problems which should be solvable. The accomplishments of this new and highly integrated geothermal well test program are described in this paper.

Nicholson, R. W.; Vetter, O. J.

1981-01-01T23:59:59.000Z

186

Final Technical Resource Confirmation Testing at the Raft River Geothermal  

Open Energy Info (EERE)

Final Technical Resource Confirmation Testing at the Raft River Geothermal Final Technical Resource Confirmation Testing at the Raft River Geothermal Project, Cassia County, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Final Technical Resource Confirmation Testing at the Raft River Geothermal Project, Cassia County, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Incorporates the results of flow tests for geothermal production and injection wells in the Raft River geothermal field in southern Idaho. Interference testing was also accomplished across the wellfield. Author(s): Glaspey, Douglas J. Published: DOE Information Bridge, 1/30/2008 Document Number: Unavailable DOI: 10.2172/922630 Source: View Original Report Flow Test At Raft River Geothermal Area (2008) Raft River Geothermal Area Retrieved from

187

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

188

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

189

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...

190

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

191

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....

192

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

193

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

194

Contractor for geopressured-geothermal sites: Final contract report, Volume 1, fiscal years 1986--1990 (5 years), testing of wells through October 1990  

SciTech Connect (OSTI)

Field tests and studies were conducted to determine the production behavior of geopressured-geothermal reservoirs and their potential as future energy sources. Results are presented for Gladys McCall Site, Pleasant Bayou Site, and Hulin Site.

Not Available

1992-09-01T23:59:59.000Z

195

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

196

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

197

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.

198

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.

199

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

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, 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

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

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.

202

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

203

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

204

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

205

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

206

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.

207

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

208

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

209

Low Cost Exploration, Testing, And Development Of The Chena Geothermal...  

Open Energy Info (EERE)

Low Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Low Cost...

210

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

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

3 4.1.2 Concept Testing and Development at the Raft River Geothermal Field, Idaho Presentation Number: 007 Investigator: Moore, Joseph (University of Utah) Objectives: Develop and...

211

Flow Test At Chena Geothermal Area (Holdmann, Et Al., 2006) ...  

Open Energy Info (EERE)

Exploration Activity Details Location Chena Geothermal Area Exploration Technique Flow Test Activity Date 2005 - 2007 Usefulness useful DOE-funding Unknown Exploration Basis...

212

Tracer Testing At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (2006) Tracer Testing At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis To characterize the flow patterns of fluid injected into well 68-20RD. Notes A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The results demonstrate the efficacy of the simultaneous use of liquid-phase and two-phase tracers in fluid-depleted geothermal

213

Low Cost Exploration, Testing, And Development Of The Chena Geothermal  

Open Energy Info (EERE)

Cost Exploration, Testing, And Development Of The Chena Geothermal Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Low Cost Exploration, Testing, And Development Of The Chena Geothermal Resource Details Activities (2) Areas (1) Regions (0) Abstract: The Chena Hot Springs geothermal field was intensively explored, tested, and developed without a wireline unit between October 2005 and August 2006. Due to the remote location of the project and its small size of 0.4 MW, it was necessary to perform the work without the geothermal industry infrastructure typically utilized in the 48 contiguous states. This could largely be done because some of the wells were capable of artesian flow at below boiling temperatures. The geology, consisting of

214

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

215

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

216

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

217

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

218

Tracer Testing At Coso Geothermal Area (1993) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (1993) Tracer Testing At Coso Geothermal Area (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (1993) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 1993 Usefulness useful DOE-funding Unknown Exploration Basis To determine the steam and water mass flow rate Notes The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of

219

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

E-Print Network [OSTI]

tests Stanford - rock/fluid heat transfer Vetter ResearchStudies of heat transfer from rock to fluid Vapor pressure

Howard, J. H.

2012-01-01T23:59:59.000Z

220

RRC - Geothermal Production Test Completion or Recompletion Report...  

Open Energy Info (EERE)

Production Test Completion or Recompletion Report and Log Form GT-1 Jump to: navigation, search OpenEI Reference LibraryAdd to library Form: RRC - Geothermal Production Test...

Note: This page contains sample records for the topic "geothermal reservoir testing" 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-dimensional simulation of the Raft River geothermal reservoir...  

Open Energy Info (EERE)

favorably with the test data. Authors Kettenacker and W. C. Published DOE Information Bridge, 311977 DOI 10.21727290699 Citation Kettenacker, W. C. . 311977. Two-dimensional...

222

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.

223

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

224

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...

225

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

226

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

227

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

228

Flow Test At Fenton Hill HDR Geothermal Area (Grigsby, Et Al...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Grigsby, Et Al., 1983) Exploration Activity Details...

229

Flow Test At Mccoy Geothermal Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Page Edit with form History Facebook icon Twitter icon Flow Test At Mccoy Geothermal Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration...

230

Tracer Testing At Raft River Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

84 Usefulness not indicated DOE-funding Unknown Notes Tracer testing was undertaken at Raft River geothermal area. References Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. (1...

231

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

232

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

233

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

234

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

235

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

236

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

237

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

238

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

239

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

240

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 testing" 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

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

242

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.

243

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.

244

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

245

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

246

Marysville Test Well Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Test Well Geothermal Area Test Well Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Marysville Test Well 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":46.75333333,"lon":-112.3766667,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

247

Fallon Test Ranges Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Fallon Test Ranges Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Fallon Test Ranges Geothermal Project Project Location Information Coordinates 39.425°, -118.70277777778° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.425,"lon":-118.70277777778,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

248

Well interference tests at the Cerro Prieto Geothermal Field  

SciTech Connect (OSTI)

Two well interference tests were carried out by the LBL at the Cerro Prieto geothermal field located in Baja California, Mexico, during 1978. The first test incorporated five wells located about 1 km south of the power plant. Standard analyses of the well interference test data yielded permeability estimates that are much higher than the values obtained from two-rate tests performed by the CFE during the development of production wells. 4 refs.

Schroeder, R.C.; Goranson, C.B.; Benson, S.M.; Lippmann, M.J.

1980-01-01T23:59:59.000Z

249

Results of Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A  

Open Energy Info (EERE)

Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Results of Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A Abstract N/A Authors James Kauahikaua and Douglas Klein Published Journal Geothermal Resources Council, TRANSACTIONS, 1978 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Results of Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A Citation James Kauahikaua,Douglas Klein. 1978. Results of Electric Survey in the Area of Hawaii Geothermal Test Well HGP-A. Geothermal Resources Council, TRANSACTIONS. 2:363-366. Retrieved from "http://en.openei.org/w/index.php?title=Results_of_Electric_Survey_in_the_Area_of_Hawaii_Geothermal_Test_Well_HGP-A&oldid=682499

250

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

251

Flow Test At Raft River Geothermal Area (2008) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Raft River Geothermal Area (2008) Flow Test At Raft River Geothermal Area (2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Raft River Geothermal Area (2008) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Flow Test Activity Date 2008 Usefulness not indicated DOE-funding Unknown Exploration Basis To confirm resource using flow tests Notes Both production and injection wells were flow tested. Aslo includes interference testing across the well field. References Glaspey, Douglas J. (30 January 2008) Final Technical Resource Confirmation Testing at the Raft River Geothermal Project, Cassia County, Idaho Retrieved from "http://en.openei.org/w/index.php?title=Flow_Test_At_Raft_River_Geothermal_Area_(2008)&oldid=473856

252

Collection and Analysis of Reservoir Data from Testing and Operation...  

Open Energy Info (EERE)

Reservoir Data from Testing and Operation of the Raft River 5 MW Power Plant Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Collection...

253

Lithology and well log study of Campbell E-2 geothermal test...  

Open Energy Info (EERE)

well log study of Campbell E-2 geothermal test well, Humboldt House geothermal prospect, Pershing County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library...

254

Flow Test At Raft River Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Raft River Geothermal Area (2006) Flow Test At Raft River Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Raft River Geothermal Area (2006) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Flow Test Activity Date 2006 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine field hydraulic conductivity using borehole impeller flowmeter data Notes A quantitative evaluation of borehole-impeller flowmeter data leads to estimated field hydraulic conductivity. Data were obtained during an injection test of a geothermal well at the Raft River geothermal test site in Idaho. Both stationary and trolling calibrations of the flowmeter were made in the well. Methods were developed to adjust for variations in hole

255

Injectivity Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983)  

Open Energy Info (EERE)

Injectivity Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983) Injectivity Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Injectivity Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Injectivity Test Activity Date Usefulness not indicated DOE-funding Unknown References C. O. Grigsby, J. W. Tester, P. E. Trujillo, D. A. Counce, J. Abbott, C. E. Holley, L. A. Blatz (1983) Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Retrieved from "http://en.openei.org/w/index.php?title=Injectivity_Test_At_Fenton_Hill_Hdr_Geothermal_Area_(Grigsby,_Et_Al.,_1983)&oldid=511318

256

Field testing advanced geothermal turbodrill (AGT). Phase 1 final report  

SciTech Connect (OSTI)

Maurer Engineering developed special high-temperature geothermal turbodrills for LANL in the 1970s to overcome motor temperature limitations. These turbodrills were used to drill the directional portions of LANL`s Hot Dry Rock Geothermal Wells at Fenton Hill, New Mexico. The Hot Dry Rock concept is to drill parallel inclined wells (35-degree inclination), hydraulically fracture between these wells, and then circulate cold water down one well and through the fractures and produce hot water out of the second well. At the time LANL drilled the Fenton Hill wells, the LANL turbodrill was the only motor in the world that would drill at the high temperatures encountered in these wells. It was difficult to operate the turbodrills continuously at low speed due to the low torque output of the LANL turbodrills. The turbodrills would stall frequently and could only be restarted by lifting the bit off bottom. This allowed the bit to rotate at very high speeds, and as a result, there was excessive wear in the bearings and on the gauge of insert roller bits due to these high rotary speeds. In 1998, Maurer Engineering developed an Advanced Geothermal Turbodrill (AGT) for the National Advanced Drilling and Excavation Technology (NADET) at MIT by adding a planetary speed reducer to the LANL turbodrill to increase its torque and reduce its rotary speed. Drilling tests were conducted with the AGT using 12 1/2-inch insert roller bits in Texas Pink Granite. The drilling tests were very successful, with the AGT drilling 94 ft/hr in Texas Pink Granite compared to 45 ft/hr with the LANL turbodrill and 42 ft/hr with a rotary drill. Field tests are currently being planned in Mexico and in geothermal wells in California to demonstrate the ability of the AGT to increase drilling rates and reduce drilling costs.

Maurer, W.C.; Cohen, J.H.

1999-06-01T23:59:59.000Z

257

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.

258

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.

259

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

260

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

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

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

262

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...

263

Testing operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) |  

Open Energy Info (EERE)

operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Testing operations plan: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) Details Activities (1) Areas (1) Regions (0) Abstract: Coso Geothermal Exploratory Hole No. 1 (CGEH-1) was drilled to investigate the potential of the Coso Hot Springs Known Geothermal Resource Area (KGRA) in southeastern California. Detailed background information is contained in the drilling plan, Coso Geothermal Exploratory Hole No. 1 (CGEH-1), NVO-184, dated June 1977. The purpose of this supplement to NVO-184 is to establish a plan of operations for testing the resource after completion of well drilling activities. Major elements of this plan include

264

Core Hole Drilling And Testing At The Lake City, California Geothermal  

Open Energy Info (EERE)

Hole Drilling And Testing At The Lake City, California Geothermal Hole Drilling And Testing At The Lake City, California Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Core Hole Drilling And Testing At The Lake City, California Geothermal Field Details Activities (4) Areas (1) Regions (0) Abstract: Unavailable Author(s): Dick Benoit, Joe Moore, Colin Goranson, David Blackwell Published: GRC, 2005 Document Number: Unavailable DOI: Unavailable Core Analysis At Lake City Hot Springs Area (Benoit Et Al., 2005) Core Holes At Lake City Hot Springs Area (Benoit Et Al., 2005) Flow Test At Lake City Hot Springs Area (Benoit Et Al., 2005) Static Temperature Survey At Lake City Hot Springs Area (Benoit Et Al., 2005) Lake City Hot Springs Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Core_Hole_Drilling_And_Testing_At_The_Lake_City,_California_Geothermal_Field&oldid=389996

265

Concept Testing and Development at the Raft River Geothermal Field, Idaho  

Broader source: Energy.gov [DOE]

Concept Testing and Development at the Raft River Geothermal Field, Idaho presentation at the April 2013 peer review meeting held in Denver, Colorado.

266

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

267

Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing  

Open Energy Info (EERE)

Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Details Activities (6) Areas (1) Regions (0) Abstract: This report covers the drilling and testing of the slim well 56-4 at the Reese River Geothermal Project in Lander County, Nevada. This well was partially funded through a GRED III Cooperative Funding Agreement # DE-FC36-04GO14344, from USDOE. Author(s): William R. Henkle, Joel Ronne Published: Geothermal Technologies Legacy Collection, 2008 Document Number: Unavailable DOI: Unavailable Source: View Original Report Compound and Elemental Analysis At Reese River Area (Henkle & Ronne, 2008)

268

A New Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal  

Open Energy Info (EERE)

Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Steam Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A New Zealand Test Of The Track-Etch Method Of Prospecting For Geothermal Steam Details Activities (0) Areas (0) Regions (0) Abstract: The Track Etch® system for radon detection was evaluated as a geothermal exploration technique in a known geothermal resource area in New Zealand called the Craters of the Moon (previously known as "Karapiti"). Very strong radon anomalies spaced along mapped fault traces were detected using 60-m sample spacings. Such radon anomalies may indicate good areas to drill for steam. The anomalies detected in these tests were located inside a larger area known to have above-back-ground concentrations of radon and

269

Data acquisition for low-temperature geothermal well tests and long-term monitoring  

SciTech Connect (OSTI)

Groundwater monitoring is an essential part of the development of a low-temperature geothermal field for production and injection wells. State water resource and environmental departments are requiring both geothermal well testing and long-term monitoring as a part of the permitting process for geothermal developments. This report covers water-level measurement methods, instruments used for well testing, geochemical sampling, examples of data acquisition and regulatory mandates on groundwater monitoring.

Lienau, P.J.

1992-09-01T23:59:59.000Z

270

Data acquisition for low-temperature geothermal well tests and long-term monitoring. Final report  

SciTech Connect (OSTI)

Groundwater monitoring is an essential part of the development of a low-temperature geothermal field for production and injection wells. State water resource and environmental departments are requiring both geothermal well testing and long-term monitoring as a part of the permitting process for geothermal developments. This report covers water-level measurement methods, instruments used for well testing, geochemical sampling, examples of data acquisition and regulatory mandates on groundwater monitoring.

Lienau, P.J.

1992-09-01T23:59:59.000Z

271

National Geothermal Data System Architecture Design, Testing and Maintenance  

Broader source: Energy.gov [DOE]

Project objective: To create the National Geothermal Data System (NGDS) comprised of a core and distributed network of databases and data sites that will comprise a federated system for acquisition, management, maintenance, and dissemination of geothermal and related data.

272

Flow Test At Coso Geothermal Area (1985-1986) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Coso Geothermal Area (1985-1986) Flow Test At Coso Geothermal Area (1985-1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Coso Geothermal Area (1985-1986) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Flow Test Activity Date 1985 - 1986 Usefulness not indicated DOE-funding Unknown Exploration Basis Understand the connectivity of the production and injection wells. Notes A long-term flow test was conducted involving one producing well (well 43-7), one injector (well 88-1), and two observation wells (well 66-6 and California Energy Co's well 71A-7). The flow test included a well production metering system and a water injection metering system. References Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.; Gentner, R.

273

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

274

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

275

RAPID/Geothermal/Water Use | Open Energy Information  

Open Energy Info (EERE)

resources is returned to or reinjected into the same aquifer or reservoir; or Reasonable loss of water results from geothermal well testing or temporary failure of all or part of...

276

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...

277

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

Open Energy Info (EERE)

Flow Test At Raft River Geothermal Area (1979) Flow Test At Raft River Geothermal Area (1979) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Raft River Geothermal Area (1979) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Flow Test Activity Date 1979 Usefulness useful DOE-funding Unknown Exploration Basis To allow for the lateral and vertical extrapolation of core and test data and bridged the gap between surface geophysical data and core analyses. Notes Temperature and flowmeter logs provide evidence that these fractures and faults are conduits that conduct hot water to the wells. One of the intermediate depth core holes penetrated a hydrothermally altered zone that includes several fractures producing hot water. This altered production

278

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

279

U.S. Geothermal Announces More Test Results From the Neal Hot...  

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

Announces More Test Results From the Neal Hot Springs Production Well and a Key Addition to Senior Staff U.S. Geothermal Announces More Test Results From the Neal Hot Springs...

280

Geology of Geothermal Test Hole GT-2 Fenton Hill Site, July 1974...  

Open Energy Info (EERE)

Test Hole GT-2 Fenton Hill Site, July 1974 Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geology of Geothermal Test Hole GT-2 Fenton Hill Site, July...

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

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

282

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

283

Flow Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983) | Open  

Open Energy Info (EERE)

Grigsby, Et Al., 1983) Grigsby, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill Hdr Geothermal Area (Grigsby, Et Al., 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Flow Test Activity Date Usefulness not indicated DOE-funding Unknown References C. O. Grigsby, J. W. Tester, P. E. Trujillo, D. A. Counce, J. Abbott, C. E. Holley, L. A. Blatz (1983) Rock-Water Interactions In Hot Dry Rock Geothermal Systems- Field Investigations Of In Situ Geochemical Behavior Retrieved from "http://en.openei.org/w/index.php?title=Flow_Test_At_Fenton_Hill_Hdr_Geothermal_Area_(Grigsby,_Et_Al.,_1983)&oldid=511312" Category: Exploration Activities What links here Related changes

284

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

285

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.

286

Modeling-Computer Simulations At Raft River Geothermal Area (1980) | Open  

Open Energy Info (EERE)

80) 80) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Raft River Geothermal Area (1980) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Modeling-Computer Simulations Activity Date 1980 Usefulness not indicated DOE-funding Unknown Exploration Basis From refined estimates of reservoir coefficients better predictions of interference effects and long-term drawdown in the wells can be made. Notes Analytic methods have been used during reservoir testing to calculate reservoir coefficients. However, anisotropy of the reservoir due to fractures has not been taken into account in these calculations and estimates of these coefficients need to be refined. In conjunction with the

287

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

288

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

289

Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA | Open  

Open Energy Info (EERE)

Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Long-Term Testing of Geothermal Wells in the Coso Hot Springs KGRA Details Activities (3) Areas (2) Regions (0) Abstract: Three wells have been drilled by the Los Angeles Department of Water and Power at the Coso Hot Springs KGRA. A long-term flow test was conducted involving one producing well (well 43-7), one injector (well 88-1), and two observation wells (well 66-6 and California Energy Co's well 71A-7). This paper presents the equipment and techniques involved and the results from the long-term test conducted between December 1985 and February 1986. Author(s): Sanyal, S.; Menzies, A.; Granados, E.; Sugine, S.;

290

Field Mapping At Raft River Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Field Mapping At Raft River Geothermal Area (1977) Field Mapping At Raft River Geothermal Area (1977) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Field Mapping Activity Date 1977 Usefulness useful DOE-funding Unknown Exploration Basis To estimate the permeability and storage parameters of the geothermal reservoir, and the possible existence of barrier boundaries. Notes Production and interference tests were conducted on the geothermal wells RRGE 1 and RRGE 2 during September--November, 1975. In all, three tests were conducted, two of them being short-duration production tests and one, a long duration interference test. The data collected during the tests also indicated that the reservoir pressure varies systematically in response to the changes in the Earth's gravitational field caused by the passage of the

291

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

292

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.

293

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...

294

Results of Electric Survey in the Area of Hawaii Geothermal Test...  

Open Energy Info (EERE)

Area of Hawaii Geothermal Test Well HGP-A Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Results of Electric Survey in the Area of Hawaii...

295

U.S. Geothermal Announces More Test Results from the Neal Hot...  

Open Energy Info (EERE)

U.S. Geothermal Announces More Test Results from the Neal Hot Springs Production Well and a Key Addition to Senior Staff Jump to: navigation, search OpenEI Reference LibraryAdd to...

296

Federal Geothermal Research Program Update, FY 2000  

SciTech Connect (OSTI)

The Department of Energy's Geothermal Program serves two broad purposes: 1) to assist industry in overcoming near-term barriers by conducting cost-shared research and field verification that allows geothermal energy to compete in today's aggressive energy markets; and 2) to undertake fundamental research with potentially large economic payoffs. The four categories of work used to distinguish the research activities of the Geothermal Program during FY 2000 reflect the main components of real-world geothermal projects. These categories form the main sections of the project descriptions in this Research Update. Exploration Technology research focuses on developing instruments and techniques to discover hidden hydrothermal systems and to explore the deep portions of known systems. Research in geophysical and geochemical methods is expected to yield increased knowledge of hidden geothermal systems. Reservoir Technology research combines laboratory and analytical investigations with equipment development and field testing to establish practical tools for resource development and management for both hydrothermal reservoirs and enhanced geothermal systems. Research in various reservoir analysis techniques is generating a wide range of information that facilitates development of improved reservoir management tools. Drilling Technology focuses on developing improved, economic drilling and completion technology for geothermal wells. Ongoing research to avert lost circulation episodes in geothermal drilling is yielding positive results. Conversion Technology research focuses on reducing costs and improving binary conversion cycle efficiency, to permit greater use of the more abundant moderate-temperature geothermal resource, and on the development of materials that will improve the operating characteristics of many types of geothermal energy equipment. Increased output and improved performance of binary cycles will result from investigations in heat cycle research.

Renner, Joel Lawrence

2001-08-01T23:59:59.000Z

297

Conceptual Model At Raft River Geothermal Area (1981) | Open Energy  

Open Energy Info (EERE)

Conceptual Model At Raft River Geothermal Area (1981) Conceptual Model At Raft River Geothermal Area (1981) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Conceptual Model At Raft River Geothermal Area (1981) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Conceptual Model Activity Date 1981 Usefulness not indicated DOE-funding Unknown Exploration Basis Use geoscience data to develop a conceptual model of the reservoir. Notes The geoscience data gathered in the drilling and testing of seven geothermal wells suggest that the thermal reservoir is: (a) produced from fractures found at the contact metamorphic zone, apparently the base of detached normal faulting from the Bridge and Horse Well Fault zones of the Jim Sage Mountains; (b) anisotropic, with the major axis of hydraulic

298

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

299

Development Wells At Raft River Geothermal Area (2004) | Open Energy  

Open Energy Info (EERE)

Development Wells At Raft River Geothermal Area (2004) Development Wells At Raft River Geothermal Area (2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Raft River Geothermal Area (2004) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Development Wells Activity Date 2004 Usefulness not indicated DOE-funding GRED II Notes Geothermal Resource Exploration and Definition Projects Raft River (GRED II): Re-assessment and testing of previously abandoned production wells. The objective of the U.S. Geothermal effort is to re-access the available wellbores, assess their condition, perform extensive testing of the reservoir to determine its productive capacity, and perform a resource utilization assessment. At the time of this paper, all five wells had been

300

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

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

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

302

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

303

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

304

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.

305

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

306

Neutron imaging for geothermal energy systems  

SciTech Connect (OSTI)

Geothermal systems extract heat energy from the interior of the earth using a working fluid, typically water. Three components are required for a commercially viable geothermal system: heat, fluid, and permeability. Current commercial electricity production using geothermal energy occurs where the three main components exist naturally. These are called hydrothermal systems. In the US, there is an estimated 30 GW of base load electrical power potential for hydrothermal sites. Next generation geothermal systems, named Enhanced Geothermal Systems (EGS), have an estimated potential of 4500 GW. EGSs lack in-situ fluid, permeability or both. As such, the heat exchange system must be developed or engineered within the rock. The envisioned method for producing permeability in the EGS reservoir is hydraulic fracturing, which is rarely practiced in the geothermal industry, and not well understood for the rocks typically present in geothermal reservoirs. High costs associated with trial and error learning in the field have led to an effort to characterize fluid flow and fracturing mechanisms in the laboratory to better understand how to design and manage EGS reservoirs. Neutron radiography has been investigated for potential use in this characterization. An environmental chamber has been developed that is suitable for reproduction of EGS pressures and temperatures and has been tested for both flow and precipitations studies with success for air/liquid interface imaging and 3D reconstruction of precipitation within the core.

Bingham, Philip R [ORNL; Anovitz, Lawrence {Larry} M [ORNL; Polsky, Yarom [ORNL

2013-01-01T23:59:59.000Z

307

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

308

An investigation of the Dixie Valley geothermal field, Nevada, using  

Open Energy Info (EERE)

investigation of the Dixie Valley geothermal field, Nevada, using investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Author Marshall J. Reed Conference Proceedings, 32nd Workshop on Geothermal Reservoir Engineering; Stanford University; 2007 Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests Citation Marshall J. Reed. 2007. An investigation of the Dixie Valley geothermal field, Nevada, using temporal moment analysis of tracer tests. In:

309

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

310

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

311

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

312

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

313

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

314

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

315

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

316

Binary Cycle Geothermal Demonstration Power Plant New Developments  

SciTech Connect (OSTI)

San Diego Gas and Electric Company (SDG and E) has been associated with geothermal exploration and development in the Imperial Valley since 1971. SDG and E currently has interests in the four geothermal reservoirs shown. Major SDG and E activities have included drilling and flow testing geothermal exploration wells, feasibility and process flow studies, small-scale field testing of power processes and equipment, and pilot plant scale test facility design, construction and operation. Supporting activities have included geothermal leasing, acquisition of land and water rights, pursual of a major new transmission line to carry Imperial Valley geothermal and other sources of power to San Diego, and support of Magma Electric's 10 MW East Mesa Geothermal Power Plant.

Lacy, Robert G.; Jacobson, William O.

1980-12-01T23:59:59.000Z

317

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

318

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

319

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

320

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

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

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

322

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

323

Isotopic Analysis-Fluid At Yellowstone Caldera Geothermal Region (1977) |  

Open Energy Info (EERE)

Isotopic Analysis-Fluid At Yellowstone Caldera Geothermal Region (1977) Isotopic Analysis-Fluid At Yellowstone Caldera Geothermal Region (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis-Fluid At Yellowstone Caldera Geothermal Region (1977) Exploration Activity Details Location Yellowstone Caldera Geothermal Region Exploration Technique Isotopic Analysis-Fluid Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis Estimate deep reservoir temperature Notes The oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes have been tested. Methods are described to calculate the effects of boiling and dilution. The geothermometer, is applied to thermal systems of Yellowstone Park, Wyoming, Long Valley, California, and Raft River, Idaho to estimate deep reservoir temperatures

324

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

325

Geothermal Case Studies  

SciTech Connect (OSTI)

The US Geological Survey (USGS) resource assessment (Williams et al., 2009) outlined a mean 30GWe of undiscovered hydrothermal resource in the western US. One goal of the Geothermal Technologies Office (GTO) is to accelerate the development of this undiscovered resource. The Geothermal Technologies Program (GTP) Blue Ribbon Panel (GTO, 2011) recommended that DOE focus efforts on helping industry identify hidden geothermal resources to increase geothermal capacity in the near term. Increased exploration activity will produce more prospects, more discoveries, and more readily developable resources. Detailed exploration case studies akin to those found in oil and gas (e.g. Beaumont, et al, 1990) will give operators a single point of information to gather clean, unbiased information on which to build geothermal drilling prospects. To support this effort, the National Renewable Energy laboratory (NREL) has been working with the Department of Energy (DOE) to develop a template for geothermal case studies on the Geothermal Gateway on OpenEI. In fiscal year 2013, the template was developed and tested with two case studies: Raft River Geothermal Area (http://en.openei.org/wiki/Raft_River_Geothermal_Area) and Coso Geothermal Area (http://en.openei.org/wiki/Coso_Geothermal_Area). In fiscal year 2014, ten additional case studies were completed, and additional features were added to the template to allow for more data and the direct citations of data. The template allows for: Data - a variety of data can be collected for each area, including power production information, well field information, geologic information, reservoir information, and geochemistry information. Narratives ? general (e.g. area overview, history and infrastructure), technical (e.g. exploration history, well field description, R&D activities) and geologic narratives (e.g. area geology, hydrothermal system, heat source, geochemistry.) Exploration Activity Catalog - catalog of exploration activities conducted in the area (with dates and references.) NEPA Analysis ? a query of NEPA analyses conducted in the area (that have been catalogued in the OpenEI NEPA database.) In fiscal year 2015, NREL is working with universities to populate additional case studies on OpenEI. The goal is to provide a large enough dataset to start conducting analyses of exploration programs to identify correlations between successful exploration plans for areas with similar geologic occurrence models.

Young, Katherine

2014-09-30T23:59:59.000Z

326

Heber binary-cycle geothermal demonstration power plant: Startup and low-power testing: Special report  

SciTech Connect (OSTI)

In 1974 the geothermal industry recognized the need for binary cycle technology in the development of moderate temperature geothermal resources. The electric utilities further expressed a need to demonstrate the technology on a scale representative of commercial operation in order to resolve issues of performance cost and environmental acceptability, and to confirm the maturity of the technology. In response to the needs, EPRI conducted feasibility studies and a series of field experiments intended to culminate with the construction and demonstration of a nominal 50 MWe binary cycle power plant in cooperation with other interested organizations. The early work by EPRI, the Department of Energy and the San Diego Gas and Electric Company led to the formation of the present multi-sponsored project in late 1980. Construction of the demonstration plant was completed in June 1985 at the Heber geothermal field in the Imperial Valley of Southern California. The plant is rated at 46 MWe and converts the thermal energy from 360 F (182 C) geothermal fluid to electricity. Start-up of the plant was completed in December 1985 and the first extended run at low power was completed in June 1986. The results from this run and other tests associated with the plant and the geothermal production facilities during this period are contained in this report. During this period, the brine supply was lower than expected and the reinjection pressure higher than expected. The power cycle performed essentially as projected for the load levels at which the plant was tested.

Berning, J.; Bigger, J.E.; Fishbaugher, J.

1987-10-01T23:59:59.000Z

327

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

328

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...

329

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...

330

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

331

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...

332

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...

333

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...

334

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...

335

Performance characteristics of the Lysholm engine as tested for geothermal power applications in the Imperial Valley  

SciTech Connect (OSTI)

This paper contains a description of the performance tests of a Lysholm engine completed at the Lawrence Livermore National Laboratory at the University of California. The Lysholm engine is a rotary displacement engine which can accept a low quality (vapor fraction) two-phase mixture. Generally, the well-head condition of geothermal fluids is a mixture of liquid and vapor, with quality up to 40 percent, although for most liquid dominated geothermal resources the vapor fraction is considerably less than 40 percent. 13 refs.

Steidel, R.F. Jr.; Weiss, H.; Flower, J.E.

1982-01-01T23:59:59.000Z

336

Cesium reservoir and interconnective components. Final test report: TFE Verification Program  

SciTech Connect (OSTI)

The program objective is to demonstrate the technology readiness of a TFE (thermionic fuel element) suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW range. A thermionic converter must be supplied with cesium vapor for two reasons. Cesium atoms adsorbed on the surface of the emitter cause a reduction of the emitter work function to permit high current densities without excessive heating of the emitter. The second purpose of the cesium vapor is to provide space-charge neutralization in the emitter-collector gap so that the high current densities may flow across the gap unattenuated. The function of the cesium reservoir is to provide a source of cesium atoms, and to provide a reserve in the event that cesium is lost from the plasma by any mechanism. This can be done with a liquid cesium metal reservoir in which case it is heated to the desired temperature with auxiliary heaters. In a TFE, however, it is desirable to have the reservoir passively heated by the nuclear fuel. In this case, the reservoir must operate at a temperature intermediate between the emitter and the collector, ruling out the use of liquid reservoirs. Integral reservoirs contained within the TFE will produce cesium vapor pressures in the desired range at typical electrode temperatures. The reservoir material that appears to be the best able to meet requirements is graphite. Cesium intercalates easily into graphite, and the cesium pressure is insensitive to loading for a given intercalation stage. The goals of the cesium reservoir test program were to verify the performance of Cs-graphite reservoirs in the temperature-pressure range of interest to TFE operation, and to test the operation of these reservoirs after exposure to a fast neutron fluence corresponding to seven year mission lifetime. In addition, other materials were evaluated for possible use in the integral reservoir.

Not Available

1994-03-01T23:59:59.000Z

337

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

338

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

339

Elevated Temperature Fracture Toughness and Fatigue Testing of Steels for Geothermal Applications  

SciTech Connect (OSTI)

Conventional drill bit steels exhibit increased wear and decreased toughness when run at elevated temperatures in geothermal wells. Bits are therefore run at lower speeds and lighter loads, resulting in lower penetration rates for geothermal drilling than for conventional rock drilling. Carpenter EX-00053, Timken CBS 600, Timken CBS 1000M and Vasco X-2M steels with improved hot hardness (improved wear resistance), were tested in conjunction with the steels used for cones (AISI 4829, 3915 and EX55) in conventional roller cones and lugs (AISI 8620, 9315 and EX55) in conventional roller cone rock bits. Short-rod fracture toughness measurements were made on each of these steels between room temperature and 400{degree}C. Fatigue crack resistance was determined at 300{degree}C for high-temperature steels and at room temperature for conventional steels. Scanning electron microscopy analyses of the fractured short-rod specimens were correlated with observed crack behavior from the test records. Materials testing results are discussed and steel selections made for improved geothermal bits. Carpenter EX-00053 and Timken CBS 1000M steels meet all design requirements for use in stabilizers, lugs and cones at temperatures to 400{degree}C. It is recommended that EX-00053 and CBS 1000M be manufactured for geothermal drilling at the Geysers site. [DJE 2005

Cutler, R.A.; Goodman, E.C.; Hendrickson, R.R.

1981-10-01T23:59:59.000Z

340

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.

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


341

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

342

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.

343

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.

344

Heat extracted from the long term flow test in the Fenton Hill HDR reservoir  

SciTech Connect (OSTI)

A long-term flow test was carried out in the Fenton Hill HDR Phase-2 reservoir for 14 months during 1992-1993 to examine the potential for supplying thermal energy at a sustained rate as a commercial demonstration of HDR technology. The test was accomplished in several segments with changes in mean flowrate due to pumping conditions. Re-test estimates of the extractable heat content above a minimum useful temperature were based on physical evidence of the size of the Fenton Hill reservoir. A numerical model was used to estimate the extent of heat extracted during the individual flow segments from the database of measured production data during the test. For a reservoir volume of 6.5x10{sup 6}m{sup 3}, the total heat content above a minimum temperature of 150{degree} C was 1.5x10{sup 15}J. For the total test period at the three sustained mean flowrates, the integrated heat extracted was 0.088x10{sup 15}J, with no discernable temperature decline of the produced fluid. The fraction of energy extracted above the abandonment temperature was 5.9%. On the basis of a constant thermal energy extraction rate, the lifetime of the reservoir (without reservoir growth) to the abandonment temperature would be 13.3 years, in good agreement with the pre-test estimate of 15.0 years for the given reservoir volume.

Kruger, Paul; Robinson, Bruce

1994-01-20T23:59:59.000Z

345

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

346

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

347

Abstract, AGU Fall meeting, San Francisco, 10-14 December, 2007 Seismic characterisation of hydraulic stimulation tests at the Coso geothermal  

E-Print Network [OSTI]

of hydraulic stimulation tests at the Coso geothermal area, California Bruce R. Julian U. S. Geological Survey, Durham DH1 3LE, U.K., g.r.foulger@durham.ac.uk Francis C. Monastero Geothermal Program Office, U. S. Navy and after fluid injection tests at the Coso geothermal area, California, to map the fractures formed

Foulger, G. R.

348

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

349

Evaluation of Devonian shale reservoir using multi-well pressure transient testing data  

SciTech Connect (OSTI)

A multi-well test program designed to study the gas production mechanisms of the eastern Devonian shale reservoirs was completed. Two offset wells were drilled as observation wells in Meigs County, OH. The results indicated a complete anisotropic, layered reservoir system which implies directional gas flow and orientation of natural fractures. This study has provided an insight into the production behavior of reservoirs. It will aid future development of shale gas by optimizing well spacing and understanding of the gas release mechanisms of the Devonian shalings. 33 refs.

Lee, B.O.; Alam, J.; Sawyer, W.K.; Horan, K.; Frohne, K.H.

1982-01-01T23:59:59.000Z

350

Multi-phase flow well test analysis in multi-layer reservoirs  

SciTech Connect (OSTI)

This paper investigates the performance of an oil well under multi-phase flow test conditions when the reservoir pressure falls below the bubble point pressure and is correspond with the performance of dissolved gas reservoirs. The model reservoir comprises two commingled layer, where a well test is conducted on a fully perforated interval. The water phase is assumed immobile. The main objective of this work is to interpret the flowing well pressure response and to predict reservoir characteristics based on its performance. The work presented is based on a constant terminal rate analysis, but it can also applied to constant bottomhole pressure and can be used to predict the Inflow Performance Relationship (IPR).

Jatmiko, W.; Archer, J.S. [Imperial College, London (United Kingdom); Daltaban, T.S.

1996-12-31T23:59:59.000Z

351

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...

352

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...

353

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

354

Department of Energy Awards up to $38 Million to Advance Technology and Reduce Cost of Geothermal Energy  

Broader source: Energy.gov [DOE]

U.S. Energy Secretary Steven Chu today announced $38 million over three years for projects to accelerate the development of promising geothermal energy technologies and help diversify America's sources of clean, renewable energy. Thirty-two innovative projects in 14 states will develop and test new ways to locate geothermal resources and improve resource characterization, drilling, and reservoir engineering techniques, which will enable geothermal energy sources to help reduce the nation's reliance on fossil fuels.

355

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

356

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

357

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

358

Development Wells At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) |  

Open Energy Info (EERE)

Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Development Wells At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Development Wells Activity Date Usefulness useful DOE-funding Unknown Notes Fenton Hill HDR site. References Z. V. Dash, H. D. Murphy, R. L. Aamodt, R. G. Aguilar, D. W. Brown, D. A. Counce, H. N. Fisher, C. O. Grigsby, H. Keppler, A. W. Laughlin, R. M. Potter, J. W. Tester, P. E. Trujillo Jr, G. Zyvoloski (1983) Hot Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Retrieved from "http://en.openei.org/w/index.php?title=Development_Wells_At_Fenton_Hill_Hdr_Geothermal_Area_(Dash,_Et_Al.,_1983)&oldid=511310"

359

Observation Wells At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) |  

Open Energy Info (EERE)

Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Observation Wells At Fenton Hill Hdr Geothermal Area (Dash, Et Al., 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Observation Wells Activity Date Usefulness useful DOE-funding Unknown Notes Fenton Hill HDR site. References Z. V. Dash, H. D. Murphy, R. L. Aamodt, R. G. Aguilar, D. W. Brown, D. A. Counce, H. N. Fisher, C. O. Grigsby, H. Keppler, A. W. Laughlin, R. M. Potter, J. W. Tester, P. E. Trujillo Jr, G. Zyvoloski (1983) Hot Dry Rock Geothermal Reservoir Testing- 1978 To 1980 Retrieved from "http://en.openei.org/w/index.php?title=Observation_Wells_At_Fenton_Hill_Hdr_Geothermal_Area_(Dash,_Et_Al.,_1983)&oldid=511330"

360

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

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

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

362

U.S. Geothermal Announces More Test Results From the Neal Hot Springs Production Well and a Key Addition to Senior Staff  

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 results from a second, higher rate flow test of the first full size production well (NHS-1) at the Neal Hot Springs Project.

363

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

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

imaging and logging Injection testing Seismic monitoring Hydraulic fracture modeling Infer production potential 3) Phase 2: GoNo Go Review Develop...

364

Tracer Testing At Dixie Valley Geothermal Area (Reed, 2007) ...  

Open Energy Info (EERE)

Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Peter E. Rose, Stuart D. Johnson, Phaedra Kilbourn (2001) Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene...

365

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

366

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.

367

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

368

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

369

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

370

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.

371

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

372

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

373

Geothermal: Sponsored by OSTI -- Hulin Geopressure-geothermal...  

Office of Scientific and Technical Information (OSTI)

Hulin Geopressure-geothermal test well: First order levels Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About...

374

Isotopic Analysis-Fluid At Raft River Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Isotopic Analysis-Fluid At Raft River Geothermal Area (1977) Isotopic Analysis-Fluid At Raft River Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis-Fluid At Raft River Geothermal Area (1977) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis Estimate deep reservoir temperature Notes The oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes have been tested. Methods are described to calculate the effects of boiling and dilution. The geothermometer, is applied to thermal systems of Yellowstone Park, Wyoming, Long Valley, California, and Raft River, Idaho to estimate deep reservoir temperatures

375

Isotopic Analysis-Fluid At Long Valley Caldera Geothermal Area (1977) |  

Open Energy Info (EERE)

Fluid At Long Valley Caldera Geothermal Area (1977) Fluid At Long Valley Caldera Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis-Fluid At Long Valley Caldera Geothermal Area (1977) Exploration Activity Details Location Long Valley Caldera Geothermal Area Exploration Technique Isotopic Analysis-Fluid Activity Date 1977 Usefulness not indicated DOE-funding Unknown Exploration Basis Estimate deep reservoir temperature Notes The oxygen isotope compositions of dissolved sulfate and water from hot springs and shallow drillholes have been tested. Methods are described to calculate the effects of boiling and dilution. The geothermometer, is applied to thermal systems of Yellowstone Park, Wyoming, Long Valley, California, and Raft River, Idaho to estimate deep reservoir temperatures

376

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

377

Acoustic Logs At Raft River Geothermal Area (1979) | Open Energy  

Open Energy Info (EERE)

Raft River Geothermal Area (1979) Raft River Geothermal Area (1979) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Acoustic Logs Activity Date 1979 Usefulness useful DOE-funding Unknown Exploration Basis To permit the lateral and vertical extrapolation of core and test data and bridged the gap between surface geophysical data and core analyses. Notes Televiewer logs permitted the location and orientation of numerous fractures and several features that may be faults. References Keys, W. S.; Sullivan, J. K. (1 June 1979) Role of borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Retrieved from "http://en.openei.org/w/index.php?title=Acoustic_Logs_At_Raft_River_Geothermal_Area_(1979)&oldid=473816"

378

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

379

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

380

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

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

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...

382

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

383

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...

384

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...

385

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...

386

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...

387

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

388

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

389

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...

390

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

391

Exploratory Well At Coso Geothermal Area (1977-1978) | Open Energy  

Open Energy Info (EERE)

77-1978) 77-1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Exploratory Well At Coso Geothermal Area (1977-1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Exploratory Well Activity Date 1977 - 1978 Usefulness useful DOE-funding Unknown Notes 1477-m Coso Geothermal Exploration Hole (CGEH) No. 1 well drilled .The objective of well and future well testing is to determine the well productivity and geothermal reservoir parameters. References Energy Research and Development Administration, Las Vegas, NV (USA). Nevada Operations Office (1 June 1977) Operations plan Coso geothermal exploratory hole No. 1 (CGEH-1) Department of Energy, Las Vegas, Nev.. Nevada Operations Office; Naval Weapons Center, China Lake, Calif.; California Univ., Berkeley.

392

Report on design, construction, and testing of CO/sub 2/ breakout system for geothermal brines  

SciTech Connect (OSTI)

A skid mounted test facility has been built for determining conditions at which CO/sub 2/ flashes from geothermal brines. The system has been checked and operated at one geothermal plant. It performed as designed. The equipment is designed to operate at temperatures and pressures typical of wells near Heber, California. (Nominally 180/sup 0/C and 300 to 500 psig). It has heat exchangers which can cool the brine to less than 70/sup 0/C. (The cooling water is recirculated after being cooled by a forced air heat exchanger). Breakout pressures can be determined for any temperature between 70/sup 0/C and wellhead temperature. An adjustable orifice provides final control on pressure required to initiate flashing. The orifice is at the bottom of a sight glass. A light beam shines through the sight glass and focuses on a photoelectric cell. The presence of bubbles scatters light and decreases the output of the cell. Results using the cell were more reproducible than those using the naked eye. Results from one test show a smooth curve over the temperature range 75/sup 0/C to 165/sup 0/C. Agreement between the experimental values and calculated ones is discussed.

Robertus, R.J.; Shannon, D.W.; Sullivan, R.G.

1984-03-01T23:59:59.000Z

393

T-F and S/DOE Gladys McCall No. 1 well, Cameron Parish, Louisiana. Geopressured-geothermal well report, Volume II. Well workover and production testing, February 1982-October 1985. Final report. Part 1  

SciTech Connect (OSTI)

The T-F and S/DOE Gladys McCall No. 1 well was the fourth in a series of wells in the DOE Design Wells Program that were drilled into deep, large geopressured-geothermal brine aquifers in order to provide basic data with which to determine the technological and economic viability of producing energy from these unconventional resources. This brine production well was spudded on May 27, 1981 and drilling operations were completed on November 2, 1981 after using 160 days of rig time. The well was drilled to a total depth of 16,510 feet. The target sands lie at a depth of 14,412 to 15,860 feet in the Fleming Formation of the lower Miocene. This report covers well production testing operations and necessary well workover operations during the February 1982 to October 1985 period. The primary goals of the well testing program were: (1) to determine reservoir size, shape, volume, drive mechanisms, and other reservoir parameters, (2) to determine and demonstrate the technological and economic viability of producing energy from a geopressured-geothermal brine aquifer through long-term production testing, and (3) to determine problem areas associated with such long-term production, and to develop solutions therefor.

Not Available

1985-01-01T23:59:59.000Z

394

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:...

395

Geopressured-geothermal testing of five dry holes during 1980 and 1981  

SciTech Connect (OSTI)

This paper summarizes the testing of five hot, geopressured aquifers in different geologic environments in Texas and Louisiana by Eaton Operating Company for the US Department of Energy. The results were encouraging. Natural gas-to-brine content ranged from 33.0 to 55.0 SCF/bbl. Gas production rates ranged from 93 to 600 MCFD. Sustained water production rates ranged from 1950 to 15,000 BWPD. Bottom-hole temperatures ranged from 260 to 327/sup 0/F. Reservoir pressures ranged from 6627 psia to 13,203 psia. A test near Beaumont resulted in discovery of oil and gas.

Klauzinski, R.Z.

1981-01-01T23:59:59.000Z

396

Geothermal Loop Experimental Facility. Final report  

SciTech Connect (OSTI)

Research at the Geothermal Loop Experimental Facility was successfully concluded in September 1979. In 13,000 hours of operation over a three and one half year period, the nominal 10 megawatt electrical equivalent GLEF provided the opportunity to identify problems in working with highly saline geothermal fluids and to develop solutions that could be applied to a commercial geothermal power plant producing electricity. A seven and one half year period beginning in April 1972, with early well flow testing and ending in September 1979, with the completion of extensive facility and reservoir operations is covered. During this period, the facility was designed, constructed and operated in several configurations. A comprehensive reference document, addressing or referencing documentation of all the key areas investigated is presented.

Not Available

1980-04-01T23:59:59.000Z

397

Heber Binary-Cycle Geothermal Demonstration Power Plant: Half-load testing, performance, and thermodynamics  

SciTech Connect (OSTI)

This report describes the project's activities during the period July 1986 through June 1987; and includes results of two annual outages and eight months of low power testing and operating. The Heber Binary-Cycle Geothermal Demonstration Power Plant is a 45 MWe electric power generating plant in the Imperial Valley of Southern California. The purpose of the Heber Binary Project is to demonstrate the capability of binary-cycle technology to economically utilize moderate-temperature (300/degree/F to 410/degree/F (150/degree/C to 210/degree/C)) geothermal resources for electric power production. The main objective of the project is to show performance, cost, and environmental acceptability of binary-cycle technology. Experience with demonstration plant and heat supply facilities is described. Details of equipment problems are included. Heat supply shortfall prevented the planned ascent to full power, but binary-cycle experience was favorable at power levels up to 50% of design. 68 refs., 80 figs., 34 tabs.

Berning, J.L.; Fishbaugher, J.R.

1988-08-01T23:59:59.000Z

398

Gulf Coast geopressured-geothermal program summary report compilation. Volume 3: Applied and direct uses, resource feasibility, economics  

SciTech Connect (OSTI)

The US Department of Energy established a geopressured-geothermal energy program in the mid 1970`s as one response to America`s need to develop alternate energy resources in view of the increasing dependence on imported fossil fuel energy. This program continued for 17 years and approximately two hundred million dollars were expended for various types of research and well testing to thoroughly investigate this alternative energy source. This volume describes the following studies: Geopressured-geothermal hybrid cycle power plant: design, testing, and operation summary; Feasibility of hydraulic energy recovery from geopressured-geothermal resources: economic analysis of the Pelton turbine; Brine production as an exploration tool for water drive gas reservoirs; Study of supercritical Rankine cycles; Application of the geopressured-geothermal resource to pyrolytic conversion or decomposition/detoxification processes; Conclusions on wet air oxidation, pyrolytic conversion, decomposition/detoxification process; Co-location of medium to heavy oil reservoirs with geopressured-geothermal resources and the feasibility of oil recovery using geopressured-geothermal fluids; Economic analysis; Application of geopressured-geothermal resources to direct uses; Industrial consortium for the utilization of the geopressured-geothermal resource; Power generation; Industrial desalination, gas use and sales, pollutant removal, thermal EOR, sulfur frasching, oil and natural gas pipelining, coal desulfurization and preparation, lumber and concrete products kilning; Agriculture and aquaculture applications; Paper and cane sugar industries; Chemical processing; Environmental considerations for geopressured-geothermal development. 27 figs., 25 tabs.

John, C.J.; Maciasz, G.; Harder, B.J.

1998-06-01T23:59:59.000Z

399

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

400

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

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

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

402

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

403

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

404

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

405

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

406

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

407

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

408

Finding Large Aperture Fractures in Geothermal Resource Areas Using a  

Open Energy Info (EERE)

Finding Large Aperture Fractures in Geothermal Resource Areas Using a Finding Large Aperture Fractures in Geothermal Resource Areas Using a Three-Component Long-Offset Surface Seismic Survey Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Finding Large Aperture Fractures in Geothermal Resource Areas Using a Three-Component Long-Offset Surface Seismic Survey Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description Because fractures and faults with sub-commercial permeability can propagate hot fluid and hydrothermal alteration throughout a geothermal reservoir, potential field geophysical methods including resistivity, gravity, heatflow and magnetics cannot distinguish between low-permeability fractures and LAF's (Large Aperature Fractures). USG will develop and test the combination of three-component,long-offset seismic surveying, permanent scatter synthetic aperture radar interferometry (PSInSAR) and structural kinematic analysis as an integrated method for locating and 3-D mapping of LAF's in shallow to intermediate depth (600-4000 feet) geothermal systems. This project is designed to test the methodology on known occurrences of LAF's and then apply the technology to expand an existing production field and find a new production field in a separate but related resource area. A full diameter production well will be drilled into each of the two lease blocks covered by the geophysical exploration program.

409

Predicting the natural state of fractured carbonate reservoirs: An Andector Field, West Texas test of a 3-D RTM simulator  

SciTech Connect (OSTI)

The power of the reaction, transport, mechanical (RTM) modeling approach is that it directly uses the laws of geochemistry and geophysics to extrapolate fracture and other characteristics from the borehole or surface to the reservoir interior. The objectives of this facet of the project were to refine and test the viability of the basin/reservoir forward modeling approach to address fractured reservoir in E and P problems. The study attempts to resolve the following issues: role of fracturing and timing on present day location and characteristics; clarifying the roles and interplay of flexure dynamics, changing rock rheological properties, fluid pressuring and tectonic/thermal histories on present day reservoir location and characteristics; and test the integrated RTM modeling/geological data approach on a carbonate reservoir. Sedimentary, thermal and tectonic data from Andector Field, West Texas, were used as input to the RTM basin/reservoir simulator to predict its preproduction state. The results were compared with data from producing reservoirs to test the RTM modeling approach. The effects of production on the state of the field are discussed in a companion report. The authors draw the following conclusions: RTM modeling is an important new tool in fractured reservoir E and P analysis; the strong coupling of RTM processes and the geometric and tensorial complexity of fluid flow and stresses require the type of fully coupled, 3-D RTM model for fracture analysis as pioneered in this project; flexure analysis cannot predict key aspects of fractured reservoir location and characteristics; fracture history over the lifetime of a basin is required to understand the timing of petroleum expulsion and migration and the retention properties of putative reservoirs.

Tuncay, K.; Romer, S.; Ortoleva, P. [Indiana Univ., Bloomington, IN (United States); Hoak, T. [Kestrel Geoscience, Littleton, CO (United States); Sundberg, K. [Phillips Petroleum Co., Bartlesville, OK (United States)

1998-12-31T23:59:59.000Z

410

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

411

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

412

. 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

413

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

414

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

415

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

416

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

417

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

418

Geothermal innovative technologies catalog  

SciTech Connect (OSTI)

The technology items in this report were selected on the basis of technological readiness and applicability to current technology transfer thrusts. The items include technologies that are considered to be within 2 to 3 years of being transferred. While the catalog does not profess to be entirely complete, it does represent an initial attempt at archiving innovative geothermal technologies with ample room for additions as they occur. The catalog itself is divided into five major functional areas: Exploration; Drilling, Well Completion, and Reservoir Production; Materials and Brine Chemistry; Direct Use; and Economics. Within these major divisions are sub-categories identifying specific types of technological advances: Hardware; Software; Data Base; Process/Procedure; Test Facility; and Handbook.

Kenkeremath, D. (ed.)

1988-09-01T23:59:59.000Z

419

Micro-Earthquake At Newberry Caldera Geothermal Area (2011) | Open Energy  

Open Energy Info (EERE)

Area (2011) Area (2011) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At Newberry Caldera Geothermal Area (2011) Exploration Activity Details Location Newberry Caldera Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine seismicity before and after reservoir stimulation for EGS Notes The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality seismic data for improved processing and interpretation methodologies. This will allow the development and testing

420

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...

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

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

422

Reservoir response to tidal and barometric effects | Open Energy  

Open Energy Info (EERE)

to tidal and barometric effects to tidal and barometric effects Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Reservoir response to tidal and barometric effects Details Activities (2) Areas (2) Regions (0) Abstract: Solid earth tidal strain and surface loading due to fluctuations in barometric pressure have the effect, although extremely minute, of dilating or contracting the effective pore volume in a porous reservoir. If a well intersects the formation, the change in pore pressure can be measured with sensitive quartz pressure gauges. Mathematical models of the relevant fluid dynamics of the well-reservoir system have been generated and tested against conventional well pumping results or core data at the Salton Sea Geothermal Field (SSGF), California and at the Raft River,

423

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

424

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

E-Print Network [OSTI]

crustal model by inverting the entire set of P- and S-wave arrival time measurements. The relocated testing and/or re-injection of brines from steam condensate. Microearthquake monitoring can detect, since this is one of only few methods available to locate fault zones precisely. High-quality results

Foulger, G. R.

425

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

E-Print Network [OSTI]

steam at system operating pressures. Drilling records and well test analysis suggest/injection capacity, flowing wellhead pressure below normal system operating pressure, and massive water-based mud, with the existing practices we cannot assess on-site the change of well characteristics as result of acid

Stanford University

426

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

427

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

428

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

429

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

430

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

431

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

432

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

433

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

434

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

435

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

436

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

437

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

438

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

439

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

440

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...

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

An Updated Conceptual Model Of The Travale Geothermal Field Based On Recent  

Open Energy Info (EERE)

Travale Geothermal Field Based On Recent Travale Geothermal Field Based On Recent Geophysical And Drilling Data Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Updated Conceptual Model Of The Travale Geothermal Field Based On Recent Geophysical And Drilling Data Details Activities (0) Areas (0) Regions (0) Abstract: an updated picture of the Travale field is given, based on geophysical and drilling data acquired since 1978. In deriving the model, extensive use is made of the geophysical data produced in the course of the EEC test site programme (1980-1983), particularly from seismic and time domain EM methods which allowed for penetrating thick and conductive cover formations and to match deep tectonic and hydrothermal alteration trends thought to indirectly characterize the geothermal reservoir. It is

442

Micro-Earthquake At New York Canyon Geothermal Area (2011) | Open Energy  

Open Energy Info (EERE)

York Canyon Geothermal Area (2011) York Canyon Geothermal Area (2011) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Micro-Earthquake At New York Canyon Geothermal Area (2011) Exploration Activity Details Location New York Canyon Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine seismicity before and after reservoir stimulation for EGS Notes The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality seismic data for improved processing and interpretation methodologies. This will allow the development and testing

443

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

444

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.

445

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...

446

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

447

Recovery Act:Direct Confirmation of Commercial Geothermal Resources in Colorado Using Remoter Sensing and On-Site Exploration, Testing and Analysis  

Broader source: Energy.gov [DOE]

Recovery Act:Direct Confirmation of Commercial Geothermal Resources in Colorado Using Remoter Sensing and On-Site Exploration, Testing and Analysis presentation at the April 2013 peer review meeting held in Denver, Colorado.

448

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

449

Microcracks, residual strain, velocity, and elastic properties of igneous rocks from a geothermal test-hole at Fenton Hill, New Mexico  

E-Print Network [OSTI]

MICROCRACKS, RESIDUAL STRAIN, VELOCITY, AND ELASTIC PROPERTIES OF IGNEOUS ROCKS FRCM A GEOTHERMAL TEST-HOLE AT FENTON HILL, NEW MEXICO A Thesis JOHN DAVID CIAMPA Submitted to the Graduate College of Texas A8M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1980 Major Subject: Geophysics MICROCRACKS, RESIDUAL STRAIN, VELOCITY, AND ELASTIC PROPERTIES OF IGNEOUS ROCKS FROM A GEOTHERMAL TEST-HOLE AT FENTON HILL, NEW MEXICO A Thesis by JOHN DAVID CIAMPA...

Ciampa, John David

2012-06-07T23:59:59.000Z

450

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

451

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,...

452

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...

453

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...

454

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...

455

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)...

456

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...

457

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...

458

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...

459

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...

460

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...

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

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

462

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.

463

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.

464

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

465

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

466

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

467

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

468

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

469

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

470

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

471

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

472

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

473

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

474

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.

475

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

476

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

477

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.

478

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

479

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.

480

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.

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

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

482

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

483

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.

484

Factors that affect fracture fluid clean-up and pressure buildup test results in tight gas reservoirs  

E-Print Network [OSTI]

FACTORS THAT AFFECT FRACTURE FLUID CLEAN-UP AND PRESSURE BUILDUP TEST RESULTS IN TIGHT GAS RESERVOIRS A Thesis KEVIN TODD MONTGOMERY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1990 Major Subject: Petroleum Engineering FACTORS THAT AFFECT FRACTURE FLUID CLEAN-UP AND PRESSURE BUILDUP TEST RESULTS IN TIGHT GAS RESERVOIRS A Thesis KEVIN TODD MONTGOMERY Approved as to style and content by: S...

Montgomery, Kevin Todd

1990-01-01T23:59:59.000Z

485

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:...

486

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...

487

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]

488

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

489

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

490

Geothermal Drilling Success at Blue Mountain, Nevada | Open Energy  

Open Energy Info (EERE)

Drilling Success at Blue Mountain, Nevada Drilling Success at Blue Mountain, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Drilling Success at Blue Mountain, Nevada Abstract Exploration in a blind prospect has led to the confirmation of a geothermal resource at Blue Mt.Nevada. The latest results include drilling of three production wells into Piedmont faults. These wells produce from a 185 to 190°C dilute benign brine reservoir. Short flow tests have shown prolific flow rates and indications of reservoir continuity.Well entries have shown that system permeability is fault-dominated. This is confirmed by the results of seismic reflection imaging. Young faulting in the area includes intersecting range front faults that strike NW, NS, and NE. Exposure of

491

geothermal2.qxp  

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

N N M T R A P E D O F E N E R G Y E T A T S D E T I N U S O F A M E R I CA E GEOTHERMAL TESTING S ince 2006, several geothermal power production companies and the Department of Energy have expressed interest in demonstrating low- temperature geothermal power projects at the Rocky Mountain Oilfield Testing Center (RMOTC). Located at Teapot Dome Oilfield in Naval Petroleum Reserve No. 3 (NPR-3), RMOTC recently expanded its testing and demonstration of power production from low- temperature, co- produced oilfield geothermal waste water. With over 1,000 existing well- bores and its 10,000-acre oil field, RMOTC offers partners the unique opportunity to test their geot- hermal tech- nologies while using existing oilfield infra- structure. RMOTC's current low-temperature geothermal project uses 198°F water separated from Tensleep

492

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 +

493

Snake River Geothermal Project- Innovative Approaches to Geothermal Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objective: To Implement and Test Geological and Geophysical Techniques for Geothermal Exploration. Project seeks to lower the cost of geothermal energy development by identifying which surface and borehole techniques are most efficient at identifying hidden resources.

494

Geothermal Blog  

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

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

495

Micro-Earthquake At Geysers Geothermal Area (2011) | Open Energy  

Open Energy Info (EERE)

Geothermal Area (2011) Geothermal Area (2011) Exploration Activity Details Location Geysers Geothermal Area Exploration Technique Micro-Earthquake Activity Date 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine seismicity before and after reservoir stimulation for EGS Notes The overall goal is to gather high resolution seismicity data before, during and after stimulation activities at the EGS projects. This will include both surface and borehole deployments (as necessary in available boreholes) to provide high quality seismic data for improved processing and interpretation methodologies. This will allow the development and testing of seismic methods for understanding the performance of the EGS systems, as well as aid in developing induced seismicity mitigation techniques that can