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Author :
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (3 download)
Download or read book A Reservoir Assessment of the Geysers Geothermal Field written by and published by . This book was released on 1981 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Reservoir Assessment of the Geysers Geothermal Field written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Big Sulphur Creek fault zone, in The Geysers Geothermal field, may be part of a deep-seated, wrench-style fault system. Hydrothermal fluid reservoir may rise through conduits beneath the five main anomalies associated with the Big Sulphur Creek wrench trend. Upon moderately dipping, fracture network. Condensed steam at the steep reservoir flank drains back to the hot water table. These flanks are defined roughly by marginally-producing geothermal wells. Field extensions are expected to be on the southeast and northwest. Some geophysical anomalies (electrical resistivity and audio-magnetotelluric) evidently are caused by the hot water geothermal field or zones of altered rocks; others (gravity, P-wave delays, and possibly electrical resistivity) probably represent the underlying heat source, a possible magma chamber; and others (microearthquake activity) may be related to the steam reservoir. A large negative gravity anomaly and a few low-resitivity anomalies suggest areas generally favorable for the presence of steam zones, but these anomalies apparently do not directly indicate the known steam reservoir. Monitoring gravity and geodetic changes with time and mapping microearthquake activity are methods that show promise for determining reservoir size, possible recharge, production lifetime, and other characteristics of the known stream field. Seismic reflection data may contribute to the efficient exploitation of the field by identifying fracture zones that serve as conduits for the steam. (DJE-2005).
Download or read book Reservoir Assessment of The Geysers Geothermal Field written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Big Sulphur Creek fault zone, in The Geysers Geothermal field, may be part of a deep-seated, wrench-style fault system. Hydrothermal fluid in the field reservoir may rise through conduits beneath the five main anomalies associated with the Big Sulphur Creek wrench trend. Some geophysical anomalies (electrical resistivity and audio-magnetotelluric) evidently are caused by the hot water geothermal field or zones of altered rocks; others (gravity, P-wave delays, and possibly electrical resistivity) probably respresent the underlying heat source, a possible magma chamber; and others (microearthquake activity) may be related to the steam reservoir. A large negative gravity anomaly and a few low-resistivity anomalies suggest areas generally favorable for the presence of steam zones, but these anomalies apparently do not directly indicate the known steam reservoir. At the current generating capacity of 930 MWe, the estimated life of The Geysers Geothermal field reservoir is 129 years. The estimated reservoir life is 60 years for the anticipated maximum generating capacity of 2000 MWe as of 1990. Wells at The Geysers are drilled with conventional drilling fluid (mud) until the top of the steam reservoir is reached; then, they are drilled with air. Usually, mud, temperature, caliper, dual induction, and cement bond logs are run on the wells.
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ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.F/5 ( download)
Download or read book Reservoir Engineering Assessment of Geothermal Systems written by and published by . This book was released on 1981 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Claudia Stone
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ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.F/5 ( download)
Download or read book Monograph on the Geysers Geothermal Field written by Claudia Stone and published by . This book was released on 1992 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permeability, Electrical Impedance, and Acoustic Velocities on Reservoir Rocks from the Geysers Geothermal Field written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous measurements of acoustic velocities on NEGU- 17 cores indicate that saturation effects are significant enough to cause Vp/Vs anomalies observed in the field. In this study we report on the results of new measurements on core recently recovered from SB-15-D along with some additional measurements on the NEGU-17 cores. The measurements indicate correlations between mechanical, transport, and water storage properties of the matrix which may prove useful for reservoir assessment and management. The SB-15-D material is found to be similar to the NEGU-17 material in terms of acoustic velocities, being characterized by a notably weak pressure dependence on the velocities and a modest Vp/Vs signature of saturation. The effect of saturation on Vp/Vs appears to result in part from a chemo-mechanical weakening of the shear modulus due to the presence of water. Electrical properties of SB-15-D material are qualitatively similar to those of the NEGU-17 cores, although resistivities of SB-15-D cores are notably lower and dielectric permittivities higher than in their NEGU- 17 counterparts. While some limited correlations of measured properties with depth are noted, no clear change in character is observed within SB-15-D cores which can be associated with the proposed cap-rock/reservoir boundary.
Author : Geothermal Resources Council. Annual Meeting
Publisher :
ISBN 13 :
Total Pages : 708 pages
Book Rating : 4.F/5 ( download)
Download or read book The Geysers--three Decades of Achievement written by Geothermal Resources Council. Annual Meeting and published by . This book was released on 1989 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Malcomm Grant
Publisher : Elsevier
ISBN 13 : 0323152910
Total Pages : 384 pages
Book Rating : 4.3/5 (231 download)
Download or read book Geothermal Reservoir Engineering written by Malcomm Grant and published by Elsevier. This book was released on 2013-02-07 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geothermal Reservoir Engineering offers a comprehensive account of geothermal reservoir engineering and a guide to the state-of-the-art technology, with emphasis on practicality. Topics covered include well completion and warm-up, flow testing, and field monitoring and management. A case study of a geothermal well in New Zealand is also presented. Comprised of 10 chapters, this book opens with an overview of geothermal reservoirs and the development of geothermal reservoir engineering as a discipline. The following chapters focus on conceptual models of geothermal fields; simple models that illustrate some of the processes taking place in geothermal reservoirs under exploitation; measurements in a well from spudding-in up to first discharge; and flow measurement. The next chapter provides a case history of one well in the Broadlands Geothermal Field in New Zealand, with particular reference to its drilling, measurement, discharge, and data analysis/interpretation. The changes that have occurred in exploited geothermal fields are also reviewed. The final chapter considers three major problems of geothermal reservoir engineering: rapid entry of external cooler water, or return of reinjected water, in fractured reservoirs; the effects of exploitation on natural discharges; and subsidence. This monograph serves as both a text for students and a manual for working professionals in the field of geothermal reservoir engineering. It will also be of interest to engineers and scientists of other disciplines.
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ISBN 13 :
Total Pages : 444 pages
Book Rating : 4.3/5 (243 download)
Download or read book Geothermal Energy Update written by and published by . This book was released on 1978-12 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Science Foundation (U.S.)
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (31 download)
Download or read book Geothermal Energy written by National Science Foundation (U.S.) and published by . This book was released on 1972 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kent S. Murray
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 ( download)
Download or read book Calistoga Geothermal Resource Assessment written by Kent S. Murray and published by . This book was released on 1986 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (16 download)
Download or read book A Database for The Geysers Geothermal Field written by and published by . This book was released on 1989 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Fiscal Year 1985-1986 the Earth Sciences Division of Lawrence Berkeley Laboratory (LBL) began a multi-year project for SLC to organize and analyze the field data from The Geysers. In the first year, most of the work concentrated on the development of a comprehensive database for The Geysers, and conventional reservoir engineering analysis of the data. Essentially, all non-proprietary data for wells at The Geysers have been incorporated into the database, as well as proprietary data from wells located on State leases. In following years, a more detailed analysis of The Geysers data has been carried out. This report is a summary of the non- proprietary work performed in FY 1985--1986. It describes various aspects of the database and also includes: review sections on Field Development, Geology, Geophysics, Geochemistry and Reservoir Engineering. It should be emphasized that these background chapters were written in 1986, and therefore only summarize the information available at that time. The appendices contain individual plots of wellhead pressures, degree of superheat, steam flow rates, cumulative mass flows, injection rates and cumulative injection through 1988 for approximately 250 wells. All of the data contained in this report are non-proprietary, from State and non-State leases. The production/injection and heat flow data from the wells were obtained from the California State Division of Oil and gas (DOG) (courtesy of Dick Thomas). Most of the other data were obtained from SLC files in Sacramento (courtesy of Charles Priddy), or DOG files in Santa Rosa (courtesy of Ken Stelling). 159 refs., 23 figs., 3 tabs.
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ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.F/5 ( download)
Download or read book Engineering and Economic Assessment of Geothermal Resources written by and published by . This book was released on 1987 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : M. Ripperda
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (821 download)
Download or read book Decline Curve Analysis of Production Data from the Geysers Geothermal Field written by M. Ripperda and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger P. Denlinger
Publisher :
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.F/5 ( download)
Download or read book Geophysics of the Geysers Geothermal Field, Northern California written by Roger P. Denlinger and published by . This book was released on 1979 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paul N. Cheremisinoff
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.3/5 (91 download)
Download or read book Geothermal Energy Technology Assessment written by Paul N. Cheremisinoff and published by . This book was released on 1976 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie G. Youngs
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (318 download)
Download or read book An Annotated Bibliography of Geothermal Information Published Or Authored by Staff of the California Division of Mines and Geology 1960-1984 written by Leslie G. Youngs and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
