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A reservoir management plan

Description: There are numerous documented cases of extraction of fluids from the ground causing surface subsidence. The cases include groundwater, oil and gas, as well as geothermal fluid withdrawal. A recent comprehensive review of all types of man-induced land subsidence was published by the Geological Survey of America. At the early stages of a geothermal power development project it is standard practice in most countries for an environmental impact report to be required. The possibility of geothermal s… more
Date: June 16, 1989
Creator: Allis, R.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Air Quality as the Limiting Factor on Development of the Geysers Geothermal Resources

Description: An air quality problem exists at the Geysers California as a result of hydrogen sulfide (H/sub 2/S) emissions from geothermal power generation. The policy and legal issues engulfing the air quality problem and efforts to mitigate the problem are examined. Estimates are made of the air quality impacts of future generation capacity based on utility electricity supply plans as submitted to California Energy Commission (CEC). The status of current and developing H/sub 2/S abatement technologies is … more
Date: August 16, 1978
Creator: Fontes, R. A. & Joyce, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal down-well pumping system. Final report

Description: A novel method of pumping geothermal hot brines is described. A discussion of the reasons for pumping and a description of the system is reported. The results of the turbopump laboratory tests are documented. The design, construction, and test of a higher flow-rate pump impeller and first-stage diffuser; detailed design improvements in the TPU and continued endurance testing of it; and preliminary planning tasks for the subsequent down-well testing program are covered. (MHR)
Date: August 16, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Approach to recover strategic metals from brines

Description: The objective of the proposed research is to evaluate hypersaline brines from geothermal sources and salt domes as possible sources for some strategic metals. This research is suggested because several previous analyses of brine from geothermal wells in the Imperial Valley, California, and from Gulf Coast salt domes, indicate near commercial values for platinum as well as other metals (i.e., gold, silver). Extraction of the platinum should be technically feasible. A research program should incl… more
Date: September 16, 1981
Creator: Raber, E.; Harrar, J. & Gregg, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat and Mass Transfer in Models of Undeveloped Geothermal Fields

Description: A brief summary is given of the nondimensional equations and relevant parameters to be used for describing convection processes in the geothermal setting. Characteristic estimates of flow rates and pressure variation (beyond the hydrostatic value) are given. it is shown that the complete equation system can be reduced in complexity by neglecting terms which describe physically insignificant effects. The resulting equations are used to consider the onset of convection in a horizontal saturated p… more
Date: June 16, 1975
Creator: Kassoy, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental overview of geothermal development: the Geysers-Calistoga KGRA. Volume 3. Noise

Description: Noise from geothermal resource development at The Geysers-Calistoga Known Geothermal Resource Area (KGRA) will cause community annoyance unless noise-level standards are set and adhered to. Venting of steam is the loudest source of noise and can reach 100 to 125 dBA at 20 to 100 ft; most of the other noise sources fall below 100 dBA and are those usually associated with construction and industrial projects. Enough data exist for assessment and decision making, but it is scattered and must be co… more
Date: August 16, 1978
Creator: Leitner, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Examination of failed drill bit from geysers field

Description: A Reed Tool Compsny 73JA drill bit used in the Geysers geothermal field failed primarily because of severe frictional wear of the nose bearing. There is no indication that well temperature by itself caused failure of any part of the bit. However, the high well temperature together with the friction heat generated produced a temperature which lead to softening and premature wear failure of the nose bearing.
Date: February 16, 1976
Creator: Leslie, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Impact of geothermal development on stockraising homestead landowners

Description: Surface use and compensation conflicts have developed at the Geysers in California between owners of surface lands acquired under the Stockraising Homestead Act of 1916 and geothermal lessees with the right to develop the mineral interests reserved to the Federal Government. Several recommendations are made to the Secretary of the Interior concerning the problems identified. The following are discussed: conditions at the Geysers concerning geothermal development on stockraising lands that could… more
Date: April 16, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regional hydrology of the Dixie Valley geothermal field, Nevada: preliminary interpretations of chemical and isotopic data

Description: Chemical and isotopic analyses of Dixie Valley regional waters indicate several distinct groups ranging in recharge age from Pleistocene (<20 ka) to recent (<50a). Valley groundwater is older than water from perennial springs and artesian wells in adjacent ranges, with Clan Alpine range (east) much younger (most <50a) than Stillwater range (west; most >1000a). Geothermal field fluids ({approximately}12-14 ka) appear derived from water similar in composition to non-thermal groundwate… more
Date: August 16, 1999
Creator: Counce, Dale; Dunlap, Charles; Goff, Fraser; Huebner, Mark; Janik, Cathy; Johnson, Stuart et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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