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Office of Scientific & Technical Information Technical Reports
200
Texas Register
36
Texas State Publications
30
Technical Report Archive and Image Library
16
Office of Technology Assessment
13
USGS Topographic Map Collection
3
Texas House of Representatives Journals
1
Texas Soil Surveys
1
United States Statutes at Large
1
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Texas Register
36
United States Fish and Wildlife Service Reports
5
Biological services program FWS/OBS
4
Argonne National Laboratory Reports
3
Fiscal Year 1985
3
Texas Parks & Wildlife
3
Calendar of Texas Events
2
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
2
Fiscal Year 1984
2
Fuel Cycle Programs Quarterly Progress Report
2
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Mineral Wells West Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1984
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Mineral Wells East Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1984
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Mineral Wells West Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1984
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Mineral resources: Research objectives for continental scientific drilling
The importance of a scientific drilling program to study mineralized hydrothermal systems has been emphasized in numerous workshops and symposia. To some degree the present report, prepared by the Panel on Mineral Resources of the Continental Scientific Drilling Committee, both reinforces and expands upon earlier recommendations. The report of the Los Alamos workshop, Continental Scientific Drilling Program, placed a major emphasis on maximizing the industry and government, supplementing these efforts with holes drilled solely for scientific purposes. Although the present report notes the importance of opportunities for scientific investigations added on to current, mission-oriented drilling activities, the Panel on Mineral Resources recognized that such opportunities are limited and thus focused on holes dedicated to broad scientific objectives. In the present report, the panel has developed a program that will provide answers to many scientific questions that have existed for almost 100 years concerning mineralized hydrothermal systems. The committee notes that research drilling may lead to results in addition to those anticipated, results that will provide new directions and ideas of equal or greater value that those basic ones originally posed. 58 refs.
Date:
January 1, 1984
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Mineral resources of the North Algodones Dunes Wilderness Study Area (CDCA-360), Imperial County, California
This report presents the results of a mineral survey of the North Algodones Dunes Wilderness Study Area (CDCA-360), California Desert Conservation Area, Imperial County, California. The potential for undiscovered base and precious metals, and sand and gravel within the North Algodones Dunes Wilderness Study Area is low. The study area has a moderate potential for geothermal energy. One small sand-free area between the Coachella Canal and the west edge of the dune field would probably be the only feasible exploration site for geothermal energy. The study area has a moderate to high potential for the occurrence of undiscovered gas/condensate within the underlying rocks. 21 refs.
Date:
January 1, 1984
Creator:
Smith, R.S.U.; Yeend, W.; Dohrenwend, J.C. & Gese, D.D.
Object Type:
Report
System:
The UNT Digital Library
Summary of low-temperature geothermal studies conducted by the Utah Geological and Mineral Survey from July 1, 1977 to December 31, 1984
Brief summaries of the results of studies of low-temperature geothermal areas are presented. These include state-wide studies, site-specific studies, and area studies. 26 refs., 2 figs. (ACR)
Date:
December 1, 1984
Creator:
Klauk, R.H.
Object Type:
Report
System:
The UNT Digital Library
Mineral Investigation of the Starvation Point Wilderness Study Area, Mohave County, Arizona and Washington County, Utah
This report presents the results of a mineral survey of the Starvation Point Wilderness Study Area (AZ-010-005/UT-040-057), Mohave County, Arizona and Washington County, Utah.
Date:
1984
Creator:
Harris, Albert D. & Ryan, George S.
Object Type:
Report
System:
The UNT Digital Library
Texas Barrier Islands Region Ecological Characterization Atlas: Mineral Resources and Selected Oil and Gas Intrastructures
A report with the purpose of cartographically rendering those know aspects of the natural and cultural features of the Texas costal areas which might influence land decisions.
Date:
February 1984
Creator:
Kimber, Clarissa T.; White, Kenneth L. & Hendricks, Fred S.
Object Type:
Report
System:
The UNT Digital Library
Geothermal assessment of the lower Bear River drainage and northern East Shore ground-water areas, Box Elder County, Utah
The Utah Geological and Mineral Survey (UGMS) has been researching the low-temperature geothermal resource potential in Utah. This report, part of an area-wide geothermal research program along the Wasatch Front, concerns the study conducted in the lower Bear River drainage and northern East Shore ground-water areas in Box Elder County, Utah. The primary purpose of the study is to identify new areas of geothermal resource potential. There are seven known low-temperature geothermal areas in this part of Box Elder County. Geothermal reconnaissance techniques used in the study include a temperature survey, chemical analysis of well and spring waters, and temperature-depth measurements in accessible wells. The geothermal reconnaissance techniques identified three areas which need further evaluation of their low-temperature geothermal resource potential. Area 1 is located in the area surrounding Little Mountain, area 2 is west and southwest of Plymouth, and area 3 is west and south of the Cutler Dam. 5 figures, 4 tables.
Date:
July 1, 1984
Creator:
Klauk, R. H. & Budding, K. E.
Object Type:
Report
System:
The UNT Digital Library
Honey Lake Geothermal Project, Lassen County, California. Final technical report
This report discusses the drilling, completion, and testing of deep well WEN-2 for a hybrid electric power project which will use the area's moderate temperature geothermal fluids and locally procured wood fuel. The project is located within the Wendel-Amedee Known Geothermal Resource Area. (ACR)
Date:
November 1, 1984
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
City of El Centro geothermal energy utility core field experiment. Final report, February 16, 1979-November 30, 1984
The City of El Centro was awarded a contract in late 1978 to cost share the development of a low to moderate temperature geothermal resource in the City. The resource would be utilized to heat, cool and provide hot water to the nearby Community Center. In December 1981, Thermal 1 (injector) was drilled to 3970 feet. In January 1982, Thermal 2 (producer) was drilled to 8510 feet. Before testing began, fill migrated into both wells. Both wells were cleaned out. A pump was installed in the producer, but migration of fill again into the injector precluded injection of produced fluid. A short term production test was undertaken and results analyzed. Based upon the analysis, DOE decided that the well was not useful for commercial production due to a low flow rate, the potential problems of continued sanding and gasing, and the requirement to lower the pump setting depth and the associated costs of pumping. There was no commercial user found to take over the wells. Therefore, the wells were plugged and abandoned. The site was restored to its original condition.
Date:
November 1, 1984
Creator:
Province, S. G. & Sherwood, P. B.
Object Type:
Report
System:
The UNT Digital Library
Coupled gas flow/solid dynamics model for predicting the formation of fracture patterns in gas well simulation experiments. [Propellant mixture used instead of explosives to fracture rock surrounding borehole]
A two-dimensional finite element model for predicting fracture patterns obtained in high energy gas fracture experiments is presented. In these experiments, a mixture of propellants is used instead of explosives to fracture the rock surrounding the borehole. The propellant mixture is chosen to tailor the pressure pulse so that multiple fractures emanate from the borehole. The model allows the fracture pattern and pressure pulse to be calculated for different combinations of propellant mixture, in situ stress conditions, and rock properties. The model calculates the amount of gas generated by the burning propellants using a burn rate given by a power law in pressure. By assuming that the gas behaves as a perfect gas and that the flow down the fractures is isothermal, the loss of gas from the borehole due to flow down the cracks is accounted for. The flow of gas down the cracks is included in an approximate manner by assuming self-similar pressure profiles along the fractures. Numerical examples are presented and compared to three different full-scale experiments. Results show a good correlation with the experimental data over a wide variety of test parameters. 9 reference, 10 figures, 3 tables.
Date:
July 1, 1984
Creator:
Taylor, L.M.; Swenson, D.V. & Cooper, P.W.
Object Type:
Report
System:
The UNT Digital Library
Sperry Low Temperature Geothermal Conversion System, Phase I and Phase II. Volume IV. Field activities. Final report
This volume describes those activities which took place at the Sperry DOE Gravity Head plant site at the East Mesa Geothermal Reservoir near Holtville, California between February 1980, when site preparation was begun, and November 1982, when production well 87-6 was permanently abandoned. Construction activities were terminated in July 1981 following the liner collapse in well 87-6. Large amounts of program time manpower, materials, and funds had been diverted in a nine-month struggle to salvage the production well. Once these efforts proved futile, there was no rationale for continuing with the site work unless and until sufficient funding to duplicate well 87-6 was obtained. Activities reported here include: plant construction and pre-operational calibration and testing, drilling and completion of well 87-6, final repair effort on well 87-6, abandonment of well 87-6, and performance evaluation of well 87.6. (MHR)
Date:
January 1, 1984
Creator:
Harvey, C.
Object Type:
Report
System:
The UNT Digital Library
Workshop on borehole measurements and interpretation in scientific drilling - identification of problems and proposals for their solution: proceedings
Critical instrumentation needs for borehole-oriented, geoscience research were identified in a program consisting of formal presentations, psoter sessions and a workshop. The proceedings include results of the workshops, abstracts of the papers and poster sessions, and the attendance list. Details of any of the presentations should be obtained from the individual authors. Separate entries were prepared for individual presentations.
Date:
March 1, 1984
Creator:
Cooper, D. L. & Traeger, R. K.
Object Type:
Article
System:
The UNT Digital Library
Hydrothermal alteration in well Baca 22, Baca geothermal area, Valles Caldera, New Mexico
A number of exploration wells were drilled to supply steam for a proposed electric generating plant. Drill cuttings from one of these wells, Baca 22, were studied with a petrographic microscope and by x-ray diffraction to determine the nature of the original rocks and of the hydrothermal alteration. The hydrothermal alteration is used to determine the temperatures of alteration which can then be compared with borehole temperatures to determine if the mineral assemblages are compatible with present day temperatures. It is shown that there is evidence indicating that the upper 2000 feet of borehole is cooler now than it has been in the past. Sample sizes were limited in this study (usually less than 5 grams). In most cases, one quarter of the sample was used to make the thin section while the remainder was reserved for x-ray analysis. Samples were mounted in epoxy and cut to a thickness of 30 microns for petrographic study. X-ray diffraction patterns were obtained using a Debye-Scherrer camera and Fek..cap alpha.. radiation.
Date:
January 1, 1984
Creator:
Fox, D.J.
Object Type:
Report
System:
The UNT Digital Library
Resource assessment for geothermal direct use applications
This report discusses the topic geothermal resource assessment and its importance to laymen and investors for finding geothermal resources for direct-use applications. These are applications where the heat from lower-temperature geothermal fluids, 120 to 200/sup 0/F, are used directly rather than for generating electricity. The temperatures required for various applications are listed and the various types of geothermal resources are described. Sources of existing resource data are indicated, and the types and suitability of tests to develop more data are described. Potential development problems are indicated and guidance is given on how to decrease technical and financial risk and how to use technical consultants effectively. The objectives of this report are to provide: (1) an introduction low-temperature geothermal resource assessment; (2) experience from a series of recent direct-use projects; and (3) references to additional information.
Date:
April 1, 1984
Creator:
Beer, C.; Hederman Jr., W. F.; Dolenc, M. R. & Allman, D. W.
Object Type:
Report
System:
The UNT Digital Library
Improved seal for geothermal drill bit. Final technical report
Each of the two field test bits showed some promise though their performances were less than commercially acceptable. The Ohio test bit ran just over 3000 feet where about 4000 is considered a good run but it was noted that a Varel bit of the same type having a standard O ring seal was completely worn out after 8-1/2 hours (1750 feet drilled). The Texas test bit had good seal-bearing life but was the wrong cutting structure type for the formation being drilled and the penetration rate was low.
Date:
July 6, 1984
Creator:
Evans, R. F.
Object Type:
Report
System:
The UNT Digital Library
East Mesa geothermal pump test facility (EMPTF). Final report
Barber-Nichols has completed the design, fabrication and installation of a geothermal pump test facility at the DOE geothermal site at East Mesa, California which is capable of testing 70 to 750 horsepower downwell pumps in a controlled geothermal environment. The facility consists of a skid-mounted brine control module, a 160 foot below ground test well section, a hydraulic turbine for power recovery, a gantry-mounted hoist for pump handling and a 3-phase, 480 VAC, 1200 amp power supply to handle pump electric requirements. Geothermal brine is supplied to the EMPTF from one of the facility wells at East Mesa. The EMPTF is designed with a great amount of flexibility to attract the largest number of potential users. The 20-inch diameter test well can accommodate a wide variety of pumps. The controls are interactive and can be adjusted to obtain a full complement of pump operation data, or set to maintain constant conditions to allow long-term testing with a minimum of operator support. The hydraulic turbine allows the EMPTF user to recover approximately 46% of the input pump power to help defray the operating cost of the unit. The hoist is provided for material handling and pump servicing and reduces the equipment …
Date:
November 28, 1984
Creator:
Olander, R.G. & Roberts, G.K.
Object Type:
Report
System:
The UNT Digital Library
Geothermal Elastomeric Materials Technology Application (GEM-TA) Program: Final report, August 1981-August 1983
In 1979, L'Garde, Inc. completed the development of several geothermal elastomer compounds. Major advances in the state of the art were achieved with successes at extreme conditions such as temperatures up to and exeeeding 320/sup 0/C (608/sup 0/F), pressures up to and exceeding 138 MPa (20,000 psi), and fluids ranging from brines to hydrocarbons. Because various geothermal projects had many elastomers problems and their solutions were critical to the project success, the DOE sponsored this effort to help provide the advantages of the earlier developed technology described above. The technology applications supported are as follows: pump lineshaft bearings; seals for Freon 114, synthetic hydrocarbon, and brine service; electrically insulative seals for logging tools; seals for nitrate salt explosive and steam service; and cementing wiper plugs. In addition there were minor efforts to further disseminate information associated with the elastomer development and case history experiences.
Date:
August 1, 1984
Creator:
Hirasuna, A. R.; Davis, D. L.; Friese, G. J. & Trailer, J. W.
Object Type:
Report
System:
The UNT Digital Library
Geothermal Technology Development Program annual progress report, October 1982-September 1983
The program emphasizes research in rock penetration mechanics, fluid technology, borehold mechanics, diagnostics technology, and permeability enhancement.
Date:
May 1, 1984
Creator:
Kelsey, J.R. (ed.)
Object Type:
Report
System:
The UNT Digital Library
Summary of geothermal studies in Montana, 1980 through 1983. DOE final report
The geology, hydrology, and surface manifestations of geothermal systems in Montana are described by area. Water-quality information, tables of inventory and water analysis data for springs and wells, and a geothermal resource map are included. (MHR)
Date:
January 1, 1984
Creator:
Sonderegger, J.L.
Object Type:
Report
System:
The UNT Digital Library
Geothermal assessment of part of the east shore area, Davis and Weber Counties, Utah
Geothermal reconnaissance techniques attempted in this study included a water temperature survey, and chemical analyses of springs and wells. The temperature survey identified 12 wells with water temperatures 20/sup 0/C or higher. These wells were, however, located throughout the study area and with the exception of one location (W-15), exhibited no other low-temperature thermal characteristics that indicated warmer temperatures could be expected at depth or within the vicinity. Sample location W-15 was similar, chemically, to Hooper and Ogden Hot Springs as well as samples collected from three other non-thermal wells in the area. Although these three samples had temperatures that only ranged from 14/sup 0/ to 16/sup 0/C, chemical geothermometer results indicate temperatures to be expected at depth range from 60/sup 0/ to 90/sup 0/C. Other chemical characteristics of these samples indicative of low-temperature geothermal potential not previously identified include common ion concentrations high in Na and Cl, high concentrations of trace elements such as Li, Ba, and Sr, as well as Ca/HCO/sub 3/ and Cl/B ratios greater than background.
Date:
July 1, 1984
Creator:
Klauk, R.H. & Prawl, C.A.
Object Type:
Report
System:
The UNT Digital Library
Reconnaissance of geothermal resources near US naval facilities in the San Diego area, California
A reconnaissance study has found little evidence of potential geothermal resources useful at naval facilities in the greater San Diego metropolitan area. However, there is a zone of modest elevated water well temperatures and slightly elevated thermal gradients that may include the eastern portion of the Imperial Beach Naval Air Station south of San Diego Bay. An increase of 0.3/sup 0/ to 0.4/sup 0/F/100 ft over the regional thermal gradient of 1.56/sup 0/F/100 ft was conservatively calculated for this zone. The thermal gradient can be used to predict 150/sup 0/F temperatures at a depth of approximately 4000 ft. This zone of greatest potential for a viable geothermal resource lies within a negative gravity anomaly thought to be caused by a tensionally developed graben, approximately centered over the San Diego Bay. Water well production in this zone is good to high, with 300 gpm often quoted as common for wells in this area. The concentration of total dissolved solids (TDS) in the deeper wells in this zone is relatively high due to intrusion of sea water. Productive geothermal wells may have to be drilled to depths economically infeasible for development of the resource in the area of discussion.
Date:
January 1, 1984
Creator:
Youngs, L. G.
Object Type:
Report
System:
The UNT Digital Library
East Mesa geothermal pump test facility (EMPTF). Final report
The design, fabrication and installation of a geothermal pump test facility (EMPFT) at the DOE geothermal site at East Mesa, California which is capable of testing 70 to 750 horsepower downwell pumps in a controlled geothermal environment were completed. The facility consists of a skid-mounted brine control module, a 160 foot below test well section, a hydraulic turbine for power recovery, a gantry-mounted hoist for pump handling and a 3-phase, 480 VAC, 1200 amp power supply to handle pump electric requirements. Geothermal brine is supplied to the EMPTF from one of the facility wells at East Mesa. The EMPTF is designed with a great amount of flexibility. The 20-inch diameter test well can accommodate a wide variety of pumps. The controls are interactive and can be adjusted to obtain a full complement of pump operation data, or set to maintain constant conditions to allow long-term testing with a minimum of operator support. The hydraulic turbine allows the EMPTF user to recover approximately 46% of the input pump power to help defray the operating cost of the unit. The hoist is provided for material handling and pump servicing and reduces the equipment that the user must supply for pump installation, inspection …
Date:
November 28, 1984
Creator:
Olander, R.G. & Roberts, G.K.
Object Type:
Report
System:
The UNT Digital Library