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Enhanced Heat Extraction From Hot Dry Rock Geothermal Reservoirs Due To Interacting Secondary Thermal Cracks Final Report
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Book Synopsis Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks. Final Report by :
Download or read book Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks. Final Report written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: How the fluid circulating through the main hydraulic fracture and the thermally-induced secondary, growing, interacting cracks affects the time-varying temperature, deformations, stresses, thermal crack geometry, water flow rates through the main and thermal cracks, reservoir coolant outlet temperature, and reservoir thermal power of the cracked geothermal reservoir is investigated. First, a simplified version of the proposed hot-dry-rock reservoir is considered. A closed-form solution of the rock temperature without thermal crack was found and substituted into SAP-IV computer code to calculate the stresses. These stresses being superposed with earth stresses and fluid pressure were used in conjunction with the fracture mechanics criterion to determine the initiation of secondary thermal crack. After the initiation of secondary thermal crack, the rock temperature was then calculated by a two-dimensional heat conduction program AYER. The detailed procedures for carrying out these steps are listed. Solutions developed are applied to studying the time-varying temperature field, thermal stresses and crack geometry produced, and additional heat power generated in the reservoir. Conclusions were discussed and summarized. (MHR).
Book Synopsis Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks by : Y. C. Hsu
Download or read book Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks written by Y. C. Hsu and published by . This book was released on 1979 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Report to Los Alamos Scientific Laboratory on Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks by : Y. C. Hsu
Download or read book Final Report to Los Alamos Scientific Laboratory on Enhanced Heat Extraction from Hot-dry-rock Geothermal Reservoirs Due to Interacting Secondary Thermal Cracks written by Y. C. Hsu and published by . This book was released on 1979 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geothermal Energy Update written by and published by . This book was released on 1978-06 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Petroleum Abstracts. Literature and Patents by :
Download or read book Petroleum Abstracts. Literature and Patents written by and published by . This book was released on 1989 with total page 1528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Methods for Predicting Productivity and Longevity of Hot-dry-rock Geothermal Reservoir in the Presence of Thermal Cracks. Technical Completion Report by :
Download or read book Engineering Methods for Predicting Productivity and Longevity of Hot-dry-rock Geothermal Reservoir in the Presence of Thermal Cracks. Technical Completion Report written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Additional heat extraction from geothermal energy reservioirs depends on the feasibility to extend the main, hydraulic fracture through secondary thermal cracks of the adjacent hot rock. When the main, hydraulic fracture is cooled sufficiently, these secondary thermal cracks are produced normal to the main fracture surface. As such, both the heat transfer surface area and heat energy available to the fluid circulating through the main, hydraulic fracture system increase. Methods for predicting the productivity and longevity of a geothermal reservoir were developed. A question is whether a significant long-term enhancement of the heat extraction process is achieved due to these secondary thermal cracks. In short, the objectives of this investigation are to study how the main, hydraulic fracture can be extended through these secondary thermal cracks of the rock, and to develop methods for predicting the productivity and longevity of a geothermal reservoir.
Book Synopsis Proceedings of the Pacific Geothermal Conference ... Incorporating the ... New Zealand Geothermal Workshop by :
Download or read book Proceedings of the Pacific Geothermal Conference ... Incorporating the ... New Zealand Geothermal Workshop written by and published by . This book was released on 1982 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot dry rock reservoir characterization and modeling by : J. D. Achenbach
Download or read book Hot dry rock reservoir characterization and modeling written by J. D. Achenbach and published by . This book was released on 1980 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Dry Rock Reservoir Characterization and Modeling. Progress Report, October 1, 1978-September 30, 1979. Final Report by :
Download or read book Hot Dry Rock Reservoir Characterization and Modeling. Progress Report, October 1, 1978-September 30, 1979. Final Report written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Resuls of analytical and experimental studies on hydraulic fracturing and on the characterization and modeling of hot dry rock geothermal energy reservoirs are presented. The first four Chapters are concerned with problems of thermal cracking and heat transfer, with fluid flow through large cracks, and with the stable and unstable growth of water-filled cracks under internal pressure and thermal loading. Experiments are reported, which present visually observable hydraulic fractures in transparent materials to demonstrate the interaction between hydraulic fractures and the development of thermal cracks. Seismic detection of hydraulic fractures is discussed, and a method to invert crack-scattering data is presented. Separate abstracts were prepared for each of the six chapters.
Download or read book National Union Catalog written by and published by . This book was released on with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.
Download or read book Petroleum Abstracts written by and published by . This book was released on 1981-04 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Checklist of State Publications by : Library of Congress. Exchange and Gift Division
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1979 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: An annual index to the monographs appears early in the following year.
Book Synopsis Potential for Hot-dry-rock Geothermal Resources by :
Download or read book Potential for Hot-dry-rock Geothermal Resources written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot dry rock (HDR) contains insufficient permeability and fluid for natural hydrothermal development, but water pumped in a circulation loop through a HDR reservoir (hydraulically fractured between two drill holes) is being tested and evaluated. The formation of such in situ heat transfer systems, and subsequent testing of the man-made geothermal reservoirs in the Jemez volcanic field, New Mexico have already indicated the technical feasibility of the hot dry rock (HDR) geothermal concept. Documented production history and heat-extraction data obtained during the period from 1978 to 1980 have confirmed heat transfer, low water loss, and predictable thermal drawdown models for the HDR systems. During a nine month test of closed-loop heat extraction operations, 15 x 106 kWh of thermal energy were produced. The effective heat-transfer area and volume of the reservoir increased due to secondary fracturing caused by thermal contraction of the reservoir rock, and sustained pressurization. Drilling, fracturing, and testing of a larger, hotter reservoir system is now underway on a HDR geothermal reservoir of commercial size.
Book Synopsis Thermal Stress Cracking and the Enhancement of Heat Extraction from Fractured Geothermal Reservoirs by : Hugh D. Murphy
Download or read book Thermal Stress Cracking and the Enhancement of Heat Extraction from Fractured Geothermal Reservoirs written by Hugh D. Murphy and published by . This book was released on 1978 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Autograph Letters Signed from Sydney Grundy to Augustin Daly by :
Download or read book Autograph Letters Signed from Sydney Grundy to Augustin Daly written by and published by . This book was released on 1888 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Drawdown and Recovery of Singly and Multiply Fractured Hot Dry Rock Reservoirs by : Rainer Wunder
Download or read book Thermal Drawdown and Recovery of Singly and Multiply Fractured Hot Dry Rock Reservoirs written by Rainer Wunder and published by . This book was released on 1978 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
