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Reservoir Modeling Of The Phase Ii Hot Dry Rock System
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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.
Book Synopsis Hot Dry Rock Phase II Reservoir Engineering by : Hugh D. Murphy
Download or read book Hot Dry Rock Phase II Reservoir Engineering written by Hugh D. Murphy and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Dry Rock Phase II Reservoir Engineering by :
Download or read book Hot Dry Rock Phase II Reservoir Engineering written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Early attempts to hydraulically fracture and connect two wells drilled at the Hot Dry Rock site at Fenton Hill in New Mexico failed. Microearthquakes triggered by hydraulic fracturing indicated that the fracture zones grew in unexpected directions. Consequently one of the wells was sidetracked at a depth of 2.9 km; was redrilled into the zones of most intense microseismic activity; and a flow connection was achieved. Hydraulic communication was improved by supplemental fracturing using recently developed high temperature and high pressure open hole packers. Preliminary testing indicates a reservoir with stimulated joint volume which already surpasses that attained in the earlier phase I reservoir after several years of development. 12 refs., 6 figs.
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:
Download or read book Geothermal Energy Update written by and published by . This book was released on 1976 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hot Dry Rock Geothermal Energy Development Program by :
Download or read book Hot Dry Rock Geothermal Energy Development Program written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With completion of the repairs of EE-2 wellbore in FY88, the major effort in FY89 will be directed toward the remaining preparations for the Long-Term Flow Test (LTFT) now scheduled to begin in September 1990. Procurement of components and equipment and installation of the surface system will continue through this and the next fiscal year to be ready for the LTFT in September 1990. Reservoir experiments will consist of pressurization and flow tests to establish further characteristics of the Phase II reservoir, particularly operating water losses. Laboratory studies will continue work on fracture healing and complete adsorption tests for chemically-reactive tracer work. Cleaning and relining of the EE-I pond to meet New Mexico State requirements, started in FY88, will be completed. Reanalysis of seismic data and automation of seismic data techniques will continue. Monitoring for environmental information, routine operations, security, health and safety training, and reporting activities will continue. The program's objectives are: (1) To develop HDR drilling, hardware and instrumentation technology for energy extraction and conduct a successful energy extraction field experiment of the Phase II reservoir. (2) To verify that the environmental consequences of HDR development are acceptable. (3) To improve HDR technology to the point where electricity could be produced commercially from a substantial number of known hot dry rock resource sites in a cost range of 5 to 8 cents/kWh. (4) To evaluate the performance of the Fenton Hill Phase II reservoir by 1992. That performance consists of system operating characteristics, including thermal drawdown, energy output, reservoir impedance, and water consumption.
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 Peer Review of the Hot Dry Rock Project at Fenton Hill, New Mexico by :
Download or read book Peer Review of the Hot Dry Rock Project at Fenton Hill, New Mexico written by and published by . This book was released on 1998 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report briefly describes the history of the hot dry rock experiment project conducted by the U.S. Department of Energy and Los Alamos National Laboratory at Fenton Hill, New Mexico, from about 1971 through 1995. The authors identify the primary lessons learned and techniques developed during the course of the Fenton Hill project, and summarize the extent to which these technologies have been transferred to the U.S. geothermal industry.
Book Synopsis Rock-water Interactions in Hot Dry Rock Geothermal Systems by : Charles Owen Grigsby
Download or read book Rock-water Interactions in Hot Dry Rock Geothermal Systems written by Charles Owen Grigsby and published by . This book was released on 1983 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Two Heat Transfer Models for Estimating Thermal Drawdown in Hot Dry Rock Reservoirs by :
Download or read book A Comparison of Two Heat Transfer Models for Estimating Thermal Drawdown in Hot Dry Rock Reservoirs written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimates of thermal drawdown in Hot Dry Rock geothermal systems have been made with two different models of heat transfer from hydraulically fractured reservoir rock blocks to water circulated through the fracture permeability. One model is based on deconvolution of experimental tracer response curves into a network of flowpaths connected in parallel with heat transfer calculated individually in each flowpath. The second model is based on one-dimensional flow through the rock with a block size distribution described as a group of equivalent-radius spheres for which the heat transfer equations can be solved analytically. The two-models were applied to the planned Phase II long-term thermal drawdown experiment at Fenton Hill, NM. The results show good agreement between the two models, with estimates of temperature cooldown from 240°C to 150°C in a few years depending on selected operation parameters, but with somewhat differing cooldown curve characteristic shapes. Data from the long-term experiment will be helpful in improving the two models.
Book Synopsis A Discrete Fracture Model for a Hot Dry Rock Geothermal Reservoir by :
Download or read book A Discrete Fracture Model for a Hot Dry Rock Geothermal Reservoir written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling results are presented for the Fenton Hill Phase II reservoir using a two-dimensional steady state simulator of fluid flow and solute transport in fractured porous media. Fluid flow and tracer response data are simulated using a fracture flow model in which the fracture apertures are string functions of pressure. The model is used to match the available steady state data of pressure drop versus flow rate and the tracer data. Various schemes for improving reservoir performance, such as high backpressure, chemical etching, stimulation using a viscous fluid, and the drilling of a second production wellbore, are then examined. 15 refs., 7 figs., 4 tabs.
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 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 Evaluation of the Second Hot Dry Rock Geothermal Energy Reservoir by :
Download or read book Evaluation of the Second Hot Dry Rock Geothermal Energy Reservoir written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a long-term (286 day) flow test of the second hot dry rock reservoir at the Fenton Hill field site are presented. This second reservoir was created by fracturing an interval of granitic rock located at a depth of 2.93 km (9620 ft) in the same wellbore pair used in the creation of the first, smaller reservoir. The new fracture system has a vertical extent of at least 320 m (1050 ft), suggesting that the combined heat-transfer area of the old and new fracture systems is much greater than that of the old system. The virgin rock temperature at the bottom of the deeper interval was 197°C (386°F). Downhole measurements of the water temperature at the reservoir outlet, as well as temperatures inferred from geothermometry, showed that the thermal drawdown of the reservoir was about 8°C, and preliminary estimates indicate that the minimum effective heat-transfer area of the new reservoir is 45,000 m2 (480,000 ft2), which is six times larger than the first reservoir.
Book Synopsis Publications of Los Alamos Research by : Los Alamos National Laboratory
Download or read book Publications of Los Alamos Research written by Los Alamos National Laboratory and published by . This book was released on 1983 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of the Second Hot Dry Rock Geothermal Energy Reservoir by : G. A. Zyvoloski
Download or read book Evaluation of the Second Hot Dry Rock Geothermal Energy Reservoir written by G. A. Zyvoloski and published by . This book was released on 1981 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
