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Hot Dry Rock Geothermal Reservoir Model Development At Los Alamos
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Book Synopsis Hot Dry Rock Geothermal Reservoir Model Development at Los Alamos by :
Download or read book Hot Dry Rock Geothermal Reservoir Model Development at Los Alamos written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Discrete fracture and continuum models are being developed to simulate Hot Dry Rock (HDR) geothermal reservoirs. The discrete fracture model is a two-dimensional steady state simulator of fluid flow and tracer transport in a fracture network which is generated from assumed statistical properties of the fractures. The model's strength lies in its ability to compute the steady state pressure drop and tracer response in a realistic network of interconnected fractures. The continuum approach models fracture behavior by treating permeability and porosity as functions of temperature and effective stress. With this model it is practical to model transient behavior as well as the coupled processes of fluid flow, heat transfer, and stress effects in a three-dimensional system. The model capabilities being developed will also have applications in conventional geothermal systems undergoing reinjection and in fractured geothermal reservoirs in general. 15 refs., 7 figs.
Book Synopsis Hot Dry Rock Geothermal Reservoir Model Development at Los Alamos by : Bruce A. Robinson
Download or read book Hot Dry Rock Geothermal Reservoir Model Development at Los Alamos written by Bruce A. Robinson and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Dry Rock Geothermal Energy Development Program Annual Report Fiscal Year ... by : Hot Dry Rock Program (U.S.)
Download or read book Hot Dry Rock Geothermal Energy Development Program Annual Report Fiscal Year ... written by Hot Dry Rock Program (U.S.) and published by . This book was released on 1980 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mining the Earth's Heat: Hot Dry Rock Geothermal Energy by : Donald W. Brown
Download or read book Mining the Earth's Heat: Hot Dry Rock Geothermal Energy written by Donald W. Brown and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mining the Earth's Heat: Hot Dry Rock Geothermal Energy describes the work carried out by the Los Alamos National Laboratory to turn an idealistic concept - that of drawing useful amounts of energy from the vast underground store of hot rock at reachable depths - into a practical reality. This book provides comprehensive documentation of the over two decades of experiments carried out at the test site at Fenton Hill, New Mexico, where the feasibility of accessing and extracting this vast natural resource was finally demonstrated. It also discusses the numerous technical, administrative, and financial hurdles that had to be overcome along the way. This publication will no doubt prove invaluable to researchers around the world as they strive to move this now-proven technology toward commercial viability. In addition, it is a valuable source of relevant information for anyone interested in the world energy outlook for the 21st century and beyond.
Book Synopsis The Los Alamos Hot Dry Rock Geothermal Project by : Donald W. Brown
Download or read book The Los Alamos Hot Dry Rock Geothermal Project written by Donald W. Brown and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Het ontroerde Nederlandt, door de Wapenen des Konings van Vrankrÿk by :
Download or read book Het ontroerde Nederlandt, door de Wapenen des Konings van Vrankrÿk written by and published by . This book was released on 1674 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Los Alamos Hot Dry Rock Geothermal Project by :
Download or read book Los Alamos Hot Dry Rock Geothermal Project written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The greatest potential for geothermal energy is the almost unlimited energy contained in the vast regions of hot, but essentially impermeable, rock within the first six or seven km of the Earth's crust. For the past five years, the Los Alamos Scientific Laboratory has been investigating and developing a practical, economical and environmentally acceptable method of extracting this energy. By early 1978, a 10 MW (thermal) heat extraction experiment will be in operation. In the Los Alamos concept, a man-made geothermal reservoir is formed by drilling into a region of suitably hot rock, and then creating within the rock a very large surface for heat transfer by large-scale hydraulic-fracturing techniques. After a circulation loop is formed by drilling a second hole to intersect the fractured region, the heat contained in this reservoir is brought to the surface by the buoyant closed-loop circulation of water. The water is kept liquid throughout the loop by pressurization, thereby increasing the rate of heat transport up the withdrawal hole compared to that possible with steam.
Book Synopsis Harvard College Class of 1925 Secretary's First Report by : Harvard College (1780- ). Class of 1925
Download or read book Harvard College Class of 1925 Secretary's First Report written by Harvard College (1780- ). Class of 1925 and published by . This book was released on 1926 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fracture Network Modeling of a Hot Dry Rock Geothermal Reservoir by : Bruce A. Robinson
Download or read book Fracture Network Modeling of a Hot Dry Rock Geothermal Reservoir written by Bruce A. Robinson and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Investigations Associated with the LASL Hot Dry Rock Geothermal Energy Development Project by : Kenneth H. Rea
Download or read book Environmental Investigations Associated with the LASL Hot Dry Rock Geothermal Energy Development Project written by Kenneth H. Rea and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Los Alamos Scientific Laboratory (LASL) is currently evaluating the feasibility of extracting thermal energy from hot dry rock (HDR) geothermal reservoirs. An overview of the environmental studies that LASL has conducted relative to its HDR Geothermal Energy Development Project is presented. Because HDR geothermal technology is a new field of endeavor, environmental guidelines have not been established. It is anticipated that LASL's research will lead to the techniques necessary to mitigate undesirable environmental impacts in future HDR developments. To date, results of environmental investigations have been positive in that no undesirable environmental impacts have been found.
Book Synopsis The US Hot Dry Rock Geothermal Energy Development Program by :
Download or read book The US Hot Dry Rock Geothermal Energy Development Program written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent accomplishments of the program are highlighted by a successful limited term flow test of the Phase 2 reservoir at the Fenton Hill site near Los Alamos. This reservoir connection was established by sidetracking one of the deep wells into hydraulically fractured areas, identified by microseismic data after original fracture attempts failed to connect the two wells. Hydraulic communication was improved by supplemental fracturing. Preliminary testing indicated a reservoir with fracture volume and heat production area surpassing the values from the earlier Phase 1 reservoir. Following completion of the downhole reservoir system, preparations were made for a reservoir-energy-extraction test. This Initial Closed Loop Flow Test (ICFT) was needed to obtain operating characteristics for planning a much longer test for thorough reservoir evaluation. The 30-day ICFT succeeded with final production of about 10 MWt at 192°C, while injecting 285 gpm at 4600 psi and producing 206 gpm at 500 psi. The water loss rate and flow impedance were high, 27% and 18 psi/gpm respectively, but were declining. Radioactive tracer tests indicated reservoir volume growth during the experiment which was continuously monitored for acoustic or microseismic activity. Following the flow test, experiments were continued for several months during the venting process. Preparations are now underway for the Long Term Flow Test (LTFT). To understand as much as possible about the Phase 2 reservoir and to demonstrate the commercial feasibility of energy from HDR reservoirs, a flow test of approximately one year's duration is deemed necessary. Part of the preparation for the LTFT is the workover and repair of the production well and the installation of a competent overall flow loop and energy exchange system. 7 refs., 5 figs.
Book Synopsis Development of Hot Dry Rock Resources by :
Download or read book Development of Hot Dry Rock Resources written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The LASL Hot Dry Rock Geothermal Energy Project is the only U.S. field test of this geothermal resource. In the LASL concept, a man-made geothermal reservoir would be formed by drilling a deep hole into relatively impermeable hot rock, creating a large surface area for heat transfer by fracturing the rock hydraulically, then drilling a second hole to intersect the fracture to complete the circulation loop. In 1974, the first hole was drilled to a depth of 2929 m (9610 ft) and a hydraulic fracture was produced near the bottom. In 1975, a second hole was directionally drilled to intersect the fracture. Although the desired intersection was not achieved, a connection was made through which water was circulated. After a year's study of the fracture system, drilling began again in April 1977 and an improved connection was achieved. In September of 1977 a 5 MW (thermal) heat extraction and circulation experiment was conducted for 100 h as a preliminary test of the concept. An 1800-h circulation experiment was concluded on April 13, 1978 to determine temperature-drawdown, permeation water loss and flow characteristics of the pressurized reservoir, to examine chemistry changes in the circulating fluid, and to monitor for induced seismic effects.
Book Synopsis Using a Hot Dry Rock Geothermal Reservoir for Load Following by :
Download or read book Using a Hot Dry Rock Geothermal Reservoir for Load Following written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reservoir Modeling of the Phase II Hot Dry Rock System by :
Download or read book Reservoir Modeling of the Phase II Hot Dry Rock System written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Phase II system has been created with a series of hydraulic fracturing experiments at the Fenton Hill Hot Dry Rock site. Experiment 2032, the largest of the fracturing operations, involved injecting 5.6 million gallons (21,200m3) of water into wellbore EE-2 over the period December 6-9, 1983. The experiment has been modeled using geothermal simulator FEHM developed at Los Alamos National Laboratory. The modeling effort has produced strong evidence of a large highly fractured reservoir. Two long term heat extraction schemes for the reservoir are studied with the model.
Author :Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program Publisher : ISBN 13 : Total Pages :32 pages Book Rating :4.:/5 (16 download)
Book Synopsis Hot Dry Rock Geothermal Energy Development Program by : Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program
Download or read book Hot Dry Rock Geothermal Energy Development Program written by Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program and published by . This book was released on 1989 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preparation, execution, and analysis of a 30-day Initial Closed-Loop Flow Test (ICFT) of the Phase II reservoir were the primary objectives of the Hot Dry Rock Program in fiscal year 1986. The ICFT successfully tested the Phase II heat-extraction loop with the injection of 37,000 m3 of cold water and production of 23,000 m3 of hot water, extracting up to 10 MW/sub t/ when production reached 0.0139 m3/s at 192/degree/C. By the end of the test, water loss rate has decreased to 26% and a significant portion of the injected water had been recovered, 66% during the test and an additional 20% during subsequent venting. Geochemical, tracer, and seismic analyses suggest reservoir fracture volume was growing throughout the test. A new technique, the ''three-point'' method, was developed to determine locations and orientations of seismically active planes. Fault or joint planes are identified in what superficially appears to be an amorphous microearthquake location set. Five planes were determined when the three-point method was applied to a location data set for the massive hydraulic-fracturing experiment conducted in 1983. 23 refs., 19 figs., 3 tabs.
Book Synopsis Hot Dry Rock Geothermal Energy Development Program by : Los Alamos National Laboratory
Download or read book Hot Dry Rock Geothermal Energy Development Program written by Los Alamos National Laboratory and published by . This book was released on 1983 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program Publisher : ISBN 13 : Total Pages :23 pages Book Rating :4.:/5 (786 download)
Book Synopsis Hot Dry Rock Geothermal Energy Development Program by : Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program
Download or read book Hot Dry Rock Geothermal Energy Development Program written by Los Alamos National Laboratory. Hot Dry Rock Geothermal Energy Development Program and published by . This book was released on 1987 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
