Search

Search Results

• 41. [Image] Annual project history: Klamath Project, Oregon-California, 1956

  	Klamath Project (United States); Water use -- Klamath River Watershed (Oregon and California); Water resources development -- Klamath River Watershed (Oregon and California); Irrigation --Klamath River ...
  	Citation × Citation Citation Abstract Copy Title: Annual project history: Klamath Project, Oregon-California, 1956 Author: United States. Bureau of Reclamation Year: 1956, 2008, 2006 Klamath Project (United States); Water use -- Klamath River Watershed (Oregon and California); Water resources development -- Klamath River Watershed (Oregon and California); Irrigation --Klamath River Watershed (Oregon and California); Klamath River (Oregon and California); Klamath River Watershed (Oregon and California) -- History Title: Annual project history: Klamath Project, Oregon-California, 1956 Author: United States. Bureau of Reclamation Year: 1956, 2008, 2006 Klamath Project (United States); Water use -- Klamath River Watershed (Oregon and California); Water resources development -- Klamath River Watershed (Oregon and California); Irrigation --Klamath River Watershed (Oregon and California); Klamath River (Oregon and California); Klamath River Watershed (Oregon and California) -- History Close

• 42. [Image] Exploration Criteria for Low Permeability Geothermal Resources: Progress Report, June 1975 - March 1, 1977

  	The decision to drill deep holes in a prospective geothermal system implies that geothermal energy resources exist at depth. The drill hole location and budget result from hypothesis regarding the location ...
  	Citation × Citation Citation Abstract Copy Title: Exploration Criteria for Low Permeability Geothermal Resources: Progress Report, June 1975 - March 1, 1977 Author: Norton, D. Year: 1977 The decision to drill deep holes in a prospective geothermal system implies that geothermal energy resources exist at depth. The drill hole location and budget result from hypothesis regarding the location and depth of the resource within the overall system. Although operational decisions normally dictate the practicality of drilling, the characteristics, we must first understand how unique various surface or shallow subsurface data are in assessing the nature of the resource. The following progress report summarizes the results of numerical simulations of heat and mass transport around igneous plutons and the synthesis of geologic data. To date, the results of the study describe the transient nature of thermal resources and the ambiguities which must be accounted for in using current technology to assess the nation's geothermal resources. [DJE-2005] Title: Exploration Criteria for Low Permeability Geothermal Resources: Progress Report, June 1975 - March 1, 1977 Author: Norton, D. Year: 1977 The decision to drill deep holes in a prospective geothermal system implies that geothermal energy resources exist at depth. The drill hole location and budget result from hypothesis regarding the location and depth of the resource within the overall system. Although operational decisions normally dictate the practicality of drilling, the characteristics, we must first understand how unique various surface or shallow subsurface data are in assessing the nature of the resource. The following progress report summarizes the results of numerical simulations of heat and mass transport around igneous plutons and the synthesis of geologic data. To date, the results of the study describe the transient nature of thermal resources and the ambiguities which must be accounted for in using current technology to assess the nation's geothermal resources. [DJE-2005] Close

• 43. [Image] Geological and Geophysical Analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California

  	The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and ...
  	Citation × Citation Citation Abstract Copy Title: Geological and Geophysical Analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Author: Galbraith, R.M. Year: 1978 The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and extensive geophysical logging surveys were conducted to document the geologic character of the geothermal system as penetrated by CGEH-1. The major rock units encountered include a mafic metamorphic sequence and a leucogranite which intruded the metamorphic rocks. Only weak hydrothermal alteration was noted in these rocks. Drillhole surveys and drilling rate data indicate that the geothermal system is structurally controlled and that the drillhole itself was strongly influenced by structural zones. Water chemistry indicates that this geothermal resource is a hot-water rather than a vapor-dominated system. Several geophysical logs were employed to characterize the drillhole geology. The natural gamma and neutron porosity logs indicate gross rock type and the acoustics logs indicate fractured rock and potentially permeable zones. A series of temperature logs run as a function of time during and after the completion of drilling were most useful in delineating the zones of maximum heat flux. Convective heat flow and temperatures greater than 350/sup 0/F appear to occur only along an open fracture system encountered between depths of 1850 and 2775 feet. Temperature logs indicate a negative thermal gradient below 3000 feet Title: Geological and Geophysical Analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Author: Galbraith, R.M. Year: 1978 The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and extensive geophysical logging surveys were conducted to document the geologic character of the geothermal system as penetrated by CGEH-1. The major rock units encountered include a mafic metamorphic sequence and a leucogranite which intruded the metamorphic rocks. Only weak hydrothermal alteration was noted in these rocks. Drillhole surveys and drilling rate data indicate that the geothermal system is structurally controlled and that the drillhole itself was strongly influenced by structural zones. Water chemistry indicates that this geothermal resource is a hot-water rather than a vapor-dominated system. Several geophysical logs were employed to characterize the drillhole geology. The natural gamma and neutron porosity logs indicate gross rock type and the acoustics logs indicate fractured rock and potentially permeable zones. A series of temperature logs run as a function of time during and after the completion of drilling were most useful in delineating the zones of maximum heat flux. Convective heat flow and temperatures greater than 350/sup 0/F appear to occur only along an open fracture system encountered between depths of 1850 and 2775 feet. Temperature logs indicate a negative thermal gradient below 3000 feet Close

• 44. [Image] The Definition of Engineering Development and Research Problems Relating to the Use of Geothermal Fluids for Electric Power Generation and Nonelectric Heating

  	The use of geothermal fluids for electric power generation and nonelectric purposes causes problems not normally encountered when pure water is used for similar purposes. These problems must be identified ...
  	Citation × Citation Citation Abstract Copy Title: The Definition of Engineering Development and Research Problems Relating to the Use of Geothermal Fluids for Electric Power Generation and Nonelectric Heating Author: Apps, J.A. Year: 1977 The use of geothermal fluids for electric power generation and nonelectric purposes causes problems not normally encountered when pure water is used for similar purposes. These problems must be identified and means developed to overcome them before geothermal energy resources can become an important source of electric power or thermal energy in the United States. Research and development projects aimed at solving problems arising from the use of geothermal fluids from known sources in the United States are listed. Problem areas covered are: impact on engineering design caused by chemical, thermodynamic, and transport properties of geothermal fluids; scaling and sludge formation; gases, volatile brine constituents, condensate chemistry; environmental problems. The research projects identified are general in nature and are not site specific. (JGB) Title: The Definition of Engineering Development and Research Problems Relating to the Use of Geothermal Fluids for Electric Power Generation and Nonelectric Heating Author: Apps, J.A. Year: 1977 The use of geothermal fluids for electric power generation and nonelectric purposes causes problems not normally encountered when pure water is used for similar purposes. These problems must be identified and means developed to overcome them before geothermal energy resources can become an important source of electric power or thermal energy in the United States. Research and development projects aimed at solving problems arising from the use of geothermal fluids from known sources in the United States are listed. Problem areas covered are: impact on engineering design caused by chemical, thermodynamic, and transport properties of geothermal fluids; scaling and sludge formation; gases, volatile brine constituents, condensate chemistry; environmental problems. The research projects identified are general in nature and are not site specific. (JGB) Close

• 45. [Image] Magnitude and Deployment Schedule of Energy Resources

  	Proceedings of a conference held on July 21-23, 1975
  	Citation × Citation Citation Abstract Copy Title: Magnitude and Deployment Schedule of Energy Resources Author: Loveland, W. D. Year: 1975 Proceedings of a conference held on July 21-23, 1975 Title: Magnitude and Deployment Schedule of Energy Resources Author: Loveland, W. D. Year: 1975 Proceedings of a conference held on July 21-23, 1975 Close

• 46. [Image] Geopressured Energy Resource Evaluation

  	The geopressured aquifers that extend along the northern Gulf of Mexico are a large, perhaps the largest, potential source of geothermal energy and natural gas in the US. Because of the high cost of completing ...
  	Citation × Citation Citation Abstract Copy Title: Geopressured Energy Resource Evaluation Author: Samuels, G. Year: 1979 The geopressured aquifers that extend along the northern Gulf of Mexico are a large, perhaps the largest, potential source of geothermal energy and natural gas in the US. Because of the high cost of completing wells into these formations and their relatively low temperatures (200 to 400 F), the utilization of the geothermal energy will be highly depend on, and of secondary importance to, the value of the methane. The economics of extracting either the geothermal energy or natural gas from these aquifers does not look promising. The combined requirements of high well flow rates (40,000 bbl/day), long life (20 years), and the necessity for close well spacing to minimize the cost of the collection system may be incompatible with the actual characteristics of the reservoirs. These factors place such stringent requirements on the reservoir size, permeability, and compressibility, or specific storage coefficient, that the number of promising production areas may be severely limited Title: Geopressured Energy Resource Evaluation Author: Samuels, G. Year: 1979 The geopressured aquifers that extend along the northern Gulf of Mexico are a large, perhaps the largest, potential source of geothermal energy and natural gas in the US. Because of the high cost of completing wells into these formations and their relatively low temperatures (200 to 400 F), the utilization of the geothermal energy will be highly depend on, and of secondary importance to, the value of the methane. The economics of extracting either the geothermal energy or natural gas from these aquifers does not look promising. The combined requirements of high well flow rates (40,000 bbl/day), long life (20 years), and the necessity for close well spacing to minimize the cost of the collection system may be incompatible with the actual characteristics of the reservoirs. These factors place such stringent requirements on the reservoir size, permeability, and compressibility, or specific storage coefficient, that the number of promising production areas may be severely limited Close

• 47. [Image] State Taxation of Other Energy Minerals Compared with State Taxation of Geothermal Resources

  	Comparisons of state taxation on the energy minerals (coal, oil shale, uranium, oil, and natural gas) to that of geothermal energy in six western states (California, New Mexico, Utah, Idaho, Nevada, and ...
  	Citation × Citation Citation Abstract Copy Title: State Taxation of Other Energy Minerals Compared with State Taxation of Geothermal Resources Author: Wagner, S.C. Year: 1977 Comparisons of state taxation on the energy minerals (coal, oil shale, uranium, oil, and natural gas) to that of geothermal energy in six western states (California, New Mexico, Utah, Idaho, Nevada, and Oregon) are given for planning economics of geothermal resource development. Separate sections include: property taxes; severance taxes; corporate franchise; income and excise taxes; oil and gas production or conservation taxes. An appendix of geothermal resources and by-products definitions is included and tax charts are arranged by state and by type of tax. (PCS) Title: State Taxation of Other Energy Minerals Compared with State Taxation of Geothermal Resources Author: Wagner, S.C. Year: 1977 Comparisons of state taxation on the energy minerals (coal, oil shale, uranium, oil, and natural gas) to that of geothermal energy in six western states (California, New Mexico, Utah, Idaho, Nevada, and Oregon) are given for planning economics of geothermal resource development. Separate sections include: property taxes; severance taxes; corporate franchise; income and excise taxes; oil and gas production or conservation taxes. An appendix of geothermal resources and by-products definitions is included and tax charts are arranged by state and by type of tax. (PCS) Close

• 48. [Image] Geothermal Energy in Wyoming: Site Data Base and Development Status

  	An overview of geothermal energy and its current and potential uses in Wyoming is presented. Chapters on each region are concluded with a summary of thermal springs in the region. The uniqueness of Yellowstone ...
  	Citation × Citation Citation Abstract Copy Title: Geothermal Energy in Wyoming: Site Data Base and Development Status Author: James, R.W. Year: 1979 An overview of geothermal energy and its current and potential uses in Wyoming is presented. Chapters on each region are concluded with a summary of thermal springs in the region. The uniqueness of Yellowstone is discussed from both an institutional point of view and a natural one. The institutional situation at the federal and state level is discussed as it applies to geothermal development in Wyoming. (MHR) Title: Geothermal Energy in Wyoming: Site Data Base and Development Status Author: James, R.W. Year: 1979 An overview of geothermal energy and its current and potential uses in Wyoming is presented. Chapters on each region are concluded with a summary of thermal springs in the region. The uniqueness of Yellowstone is discussed from both an institutional point of view and a natural one. The institutional situation at the federal and state level is discussed as it applies to geothermal development in Wyoming. (MHR) Close

• 49. [Image] Preliminary Model Ordinance for Municipal Geothermal District Heating and Reservoir Management

  	A preliminary model of a municipal ordinance for geothermal district heating and reservoir management has been developed for the City of Klamath Falls, Oregon and the Oregon Department of Energy. The ordinance ...
  	Citation × Citation Citation Abstract Copy Title: Preliminary Model Ordinance for Municipal Geothermal District Heating and Reservoir Management Author: Allen, E.M. Year: 1980 A preliminary model of a municipal ordinance for geothermal district heating and reservoir management has been developed for the City of Klamath Falls, Oregon and the Oregon Department of Energy. The ordinance contains provisions for: community geothermal development and utilization policies; a municipal geothermal district heating service; reservoir monitoring and management procedures and authorization for private geothermal heating services. The ordinance's "preliminary" nature is due to two pending legal issues on the state level: first, a revision of thermal ground water Administrative Rules is being prepared by the Oregon Water Resources Department; and second, the Oregon Governor and Legislature are considering an Alternate Energy Development Commission recommendation to develop a program whereby geothermal heating districts will be involved in the cooperative management of local thermal ground water reservoirs with the Oregon Water Resources Department. However, neither matter is expected to be finalized until 1981. Both geothermal fluids and ground water are cited jointly throughout the ordinance because of the legal definition of low to moderate temperature fluids as ground water, and the potential for the Klamath Falls community to encounter high temperature resources defined as geothermal fluids. Appendices in this report include the Oregon statutes cited in the model ordinance, and also draft geothermal overlay zoning for inclusion in the Klamath Falls Community Development Ordinance Title: Preliminary Model Ordinance for Municipal Geothermal District Heating and Reservoir Management Author: Allen, E.M. Year: 1980 A preliminary model of a municipal ordinance for geothermal district heating and reservoir management has been developed for the City of Klamath Falls, Oregon and the Oregon Department of Energy. The ordinance contains provisions for: community geothermal development and utilization policies; a municipal geothermal district heating service; reservoir monitoring and management procedures and authorization for private geothermal heating services. The ordinance's "preliminary" nature is due to two pending legal issues on the state level: first, a revision of thermal ground water Administrative Rules is being prepared by the Oregon Water Resources Department; and second, the Oregon Governor and Legislature are considering an Alternate Energy Development Commission recommendation to develop a program whereby geothermal heating districts will be involved in the cooperative management of local thermal ground water reservoirs with the Oregon Water Resources Department. However, neither matter is expected to be finalized until 1981. Both geothermal fluids and ground water are cited jointly throughout the ordinance because of the legal definition of low to moderate temperature fluids as ground water, and the potential for the Klamath Falls community to encounter high temperature resources defined as geothermal fluids. Appendices in this report include the Oregon statutes cited in the model ordinance, and also draft geothermal overlay zoning for inclusion in the Klamath Falls Community Development Ordinance Close

• 50. [Image] Guidelines to the Preparation of Environmental Reports for Geothermal Development Projects

  	The US Energy Research and Development Administration (ERDA) through its Division of Geothermal Energy (DGE) is the federal agency responsible for certain actions that pertain to the development of geothermal ...
  	Citation × Citation Citation Abstract Copy Title: Guidelines to the Preparation of Environmental Reports for Geothermal Development Projects Author: Energy Research and Development Administration, Division of Geothermal Energy Year: 1977 The US Energy Research and Development Administration (ERDA) through its Division of Geothermal Energy (DGE) is the federal agency responsible for certain actions that pertain to the development of geothermal resources. Such resources include (1) all products of geothermal processes, embracing indigenous steam, geopressured fluids, hot water, and brines; (2) steam and other gases, hot water and hot brines resulting from water, and natural gas or other fluids introduced into geothermal formations; (3) any by-products derived from geothermal resources, such as minerals or gases. By-products must either have a value less than 75% of the value of the geothermal resources from which they are derived or must not be of sufficient value alone to warrant extraction and production. in order to encourage the development of geothermal resources, ERDA conducts a program to assess those resources and to establish the technical, economic, and environmental acceptability of geothermal technologies. This program includes some proposed actions that could affect the environment. As a means of obtaining information essential to satisfying the requirements of NEAP and its own regulations (10 CFR Part 711), ERDA requests that certain participants in the agency's programmatic activities submit an environmental report. The report describes the proposed programmatic activities and considers the potential impacts of those activities with respect to the existing environment. This guidelines document has been developed to provide assistance to participants in the preparation of environmental reports about geothermal activities Title: Guidelines to the Preparation of Environmental Reports for Geothermal Development Projects Author: Energy Research and Development Administration, Division of Geothermal Energy Year: 1977 The US Energy Research and Development Administration (ERDA) through its Division of Geothermal Energy (DGE) is the federal agency responsible for certain actions that pertain to the development of geothermal resources. Such resources include (1) all products of geothermal processes, embracing indigenous steam, geopressured fluids, hot water, and brines; (2) steam and other gases, hot water and hot brines resulting from water, and natural gas or other fluids introduced into geothermal formations; (3) any by-products derived from geothermal resources, such as minerals or gases. By-products must either have a value less than 75% of the value of the geothermal resources from which they are derived or must not be of sufficient value alone to warrant extraction and production. in order to encourage the development of geothermal resources, ERDA conducts a program to assess those resources and to establish the technical, economic, and environmental acceptability of geothermal technologies. This program includes some proposed actions that could affect the environment. As a means of obtaining information essential to satisfying the requirements of NEAP and its own regulations (10 CFR Part 711), ERDA requests that certain participants in the agency's programmatic activities submit an environmental report. The report describes the proposed programmatic activities and considers the potential impacts of those activities with respect to the existing environment. This guidelines document has been developed to provide assistance to participants in the preparation of environmental reports about geothermal activities Close