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1,015
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654
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356
City of Stephenville Newspaper Collection
265
Stephenville Empire-Tribune
264
Brownwood Bulletin
257
The Oklahoma City Times
169
Lawton Constitution
162
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[Lake Mineral Wells, 3 of 4: Sign]
A sign in front of the spillway (which was part of the dam for Mineral Wells Lake before it was rebuilt to a higher level during World War Two) says, "Water For Texans."
Date:
August 6, 1977
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
The feasibility of developing a borehole sparker for geothermal wells
A feasibility study was undertaken to determine the practicality of designing a borehole sparker (underwater electric discharge) seismic source for use in an extremely harsh environment (69MPa @ 275{degrees}C = 10,000 psi @ 527{degrees}F). Important electrical and hydrodynamic parameters of underwater spark discharges, component availability, and past accomplishments of others in the field of borehole-to-borehole sparker surveying are discussed. It is concluded that this instrument could be economically developed.
Date:
January 1, 1977
Creator:
McClung, J. B.
Object Type:
Report
System:
The UNT Digital Library
[Jarmon Alvis Lynch and Wife]
A photograph of Jarmon Alvis Lynch and his wife, taken October 1, 1977. He was the grandson J. A. Lynch, the founder of Mineral Wells. He is shown standing on the steps of the Rock School House (in Mineral Wells)in this 1977 photograph, and holding his drawing of the Lynch cabins, which also shows the drilling rig his grandfather used to dig the first mineral well.
Date:
October 1, 1977
Creator:
Weaver, A. F.
Object Type:
Photograph
System:
The Portal to Texas History
Sample descriptions and summary logs of selected wells within the Hanford Reservation
As part of a program aimed at quantifying the hydraulic parameters of the synthetic flow systems of the Hanford Reservation a systematic study was made of the samples from selected wells. This report presents the description and summary logs of cuttings samples from 114 wells and test holes drilled within the Hanford Reservation. Written descriptive matter as required, including color, fossils, trace constituents, total drilled depth, and any other nonstandard features observed is included.
Date:
January 1, 1977
Creator:
Summers, W.K. & Hanson, R.T.
Object Type:
Report
System:
The UNT Digital Library
Core sample descriptions and summary logs of six wells within the Hanford Reservation
From February through May, 1976, selected sites on the Hanford Reservation were core drilled. These six holes provide a loose network of observation holes traversing the reservation in an east--west direction between the Columbia River and State Highway 240. This program represents the first attempt to recover cores from the glaciofluviatile material and Ringold Formation beneath the Hanford Reservation. This contains three parts: an introductory text describing the method of inspection and format for written description; summary logs that illustrate in condensed form the rocks penetrated by the wells drilled; and the detailed written descriptions of core samples. 3 figures, 7 tables. (RWR)
Date:
January 1, 1977
Creator:
Summers, W.K. & Hanson, R.T.
Object Type:
Report
System:
The UNT Digital Library
Cementing of geothermal wells. Progress report No. 7, October--December 1977
Progress in work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is reported. Work on the first element of the program management plan (problem definition) was completed and a report issued. The materials development and property verification phases of the plan are in progress. Plans for the down-hole testing phase of the program are being formulated. The most promising high temperature polymer cement (PC) system identified to date consists of a cross-linked mixture of styrene, acrylonitrile, and acrylamide in conjunction with a sand-cement filler. A study is in progress to optimize the concentrations of the mix components with respect to properties. Work to determine the pumpability of the system is in progress. Samples of PC have been removed after exposure at The Geysers to dry steam at 460/sup 0/F (238/sup 0/C) for 2 yrs. Visual inspection of the specimens indicated little apparent deterioration. The appendix includes five reports from contributing researchers on the development of high temperature cementing materials for geothermal wells.
Date:
December 1, 1977
Creator:
Steinberg, M. & Kukacka, L. E.
Object Type:
Report
System:
The UNT Digital Library
Ground Water Resources of the Carrizo Aquifer in the Winter Garden Area of Texas: Volume 2. Records of Wells; Water Levels in Wells; Chemical Analyses of Water; and Well Location Maps
"This report … contains supporting basic data including well location maps, records of 3,214 water wells, records of water levels in 474 wells, and chemical analyses of water samples from 1,553 wells" (p. 1).
Date:
April 1977
Creator:
Marquardt, Glenn & Rodriguez, Eulogio, Jr.
Object Type:
Report
System:
The Portal to Texas History
Gravity survey of the Cove Fort-Sulphurdale KGRA and the north Mineral Mountains area, Millard and Beaver Counties, Utah
During the summers of 1975 and 1976, a gravity survey was conducted in the Cove Fort-Sulphurdale KGRA and north Mineral Mountains area, Millard and Beaver Counties, Utah. The survey consisted of 671 gravity stations covering an area of about 1300 km{sup 2}, and included two orthogonal gravity profiles traversing the area. The gravity data are presented as a terrain-corrected Bouguer gravity anomaly map with a contour interval of 1 mgal and as an isometric three-dimensional gravity anomaly surface. Selected anomaly separation techniques were applied to the hand-digitized gravity data (at 1-km intervals on the Universal Transverse Mercator grid) in both the frequency and space domains, including Fourier decomposition, second vertical derivative, strike-filter, and polynomial fitting analysis, respectively.
Date:
August 1, 1977
Creator:
Brumbaugh, W.D. & Cook, K.L.
Object Type:
Report
System:
The UNT Digital Library
Gravity survey of the Cove Fort-Sulphurdale KGRA and the North Mineral Mountains area, Millard and Beaver Counties, Utah. Technical report: Volume 77-4
During the summers of 1975 and 1976, a gravity survey was conducted in the Cove Fort-Sulphurdale KGRA and north Mineral Mountains area, Millard and Beaver Counties, Utah. The survey consisted of 671 gravity stations covering an area of about 1300 km/sup 2/, and included two orthogonal gravity profiles traversing the area. The gravity data are presented as a terrain-corrected Bouguer gravity anomaly map with a contour interval of 1 mgal and as an isometric three-dimensional gravity anomaly surface. Selected anomaly separation techniques were applied to the hand-digitized gravity data (at 1-km intervals on the Universal Transverse Mercator grid) in both the frequency and space domains, including Fourier decomposition, second vertical derivative, strike-filter, and polynomial fitting analysis, respectively.
Date:
August 1, 1977
Creator:
Brumbaugh, W.D. & Cook, K.L.
Object Type:
Report
System:
The UNT Digital Library
Gulf Coast Programmatic Environmental Assessment Geothermal Well Testing: The Frio Formation of Texas and Louisiana
In accordance with the requirements of 10 CFR Part 711, environmental assessments are being prepared for significant activities and individual projects of the Division of Geothermal Energy (DGE) of the Energy Research and Development Administration (ERDA). This environmental assessment of geopressure well testing addresses, on a regional basis, the expected activities, affected environments, and possible impacts in a broad sense. The specific part of the program addressed by this environmental assessment is geothermal well testing by the take-over of one or more unsuccessful oil wells before the drilling rig is removed and completion of drilling into the geopressured zone. Along the Texas and Louisiana Gulf Coast (Plate 1 and Overlay) water at high temperatures and high pressures is trapped within Gulf basin sediments. The water is confined within or below essentially impermeable shale sequences and carries most or all of the overburden pressure. Such zones are referred to as geopressured strata. These fluids and sediments are heated to abnormally high temperatures (up to 260 C) and may provide potential reservoirs for economical production of geothermal energy. The obvious need in resource development is to assess the resource. Ongoing studies to define large-sand-volume reservoirs will ultimately define optimum sites for drilling …
Date:
October 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Utilization of melting techniques for borehole wall stabilization. [Applied to geothermal well production systems]
A research program on the Subterrene concept based on excavation by melting has been completed. Theoretical and experimental studies were made for a broad range of applications. Most recently, a study of Subterrene deep geothermal well production systems predicted that, compared to rotary-drilled wells, significant cost savings are possible, e.g., 2 and 4 million dollars for 10-km-deep wells and geothermal gradients of 25 and 40 K/km, respectively. It was also concluded that for most wells the rate of penetration of the melting bits should be increased several times over that attained in the Subterrene tests. Subterrene melting penetration tests showed that borehole glass liners can be formed in a wide variety of materials and structural characterization tests showed that tuff glass cylinders can be many times stronger in compression than the parent material. Also, the tests showed that the rock-glass liner permeability decreases rapidly with confining pressure. New melting devices are conceivable that could line rotary-drilled boreholes with rock glass or other materials with resultant improvements in well costs. With emphasis on borehole liners, an overview of Subterrene program results, data on rock-glass liners, and suggestions on how molten materials might be applied to the borehole wall as part of …
Date:
January 1, 1977
Creator:
Altseimer, J. H.
Object Type:
Article
System:
The UNT Digital Library
SDG and E and ERDA Geothermal Loop Experimental Facility. Bimonthly report, March-April 1977
The Geothermal Loop Experimental Facility was shut down in March, 1977, for the refurbishment of the facility and the injection well. Heavy scaling, which occurred in the facility brine systems as well as in the injection well, necessitated periodic plant shutdowns and cleanings. Various means of scale cleaning and controls were accomplished and evaluated for cost effectiveness. Initial indications showed that operations were satisfactory. Initial operational stability, and heat and mass balance testing of the Geothermal Loop Experimental Facility (GLEF) were accomplished. Operational stability was demonstrated but heat and mass balance test data were not satisfactory primarily due to off design facility operation. Testing was also hampered by pump failures, injection strainer cleaning difficulties and instrumentation problems.
Date:
May 1, 1977
Creator:
Bishop, H. K.; Bricarello, J. R.; Enos, F. L.; Hodgdon, N. C.; Jacobson, W. O.; Li, K. K. et al.
Object Type:
Report
System:
The UNT Digital Library
Extensive geochemical studies in the geothermal field of Cerro Prieto, Mexico
Data collected during 12 years of operation of the chemical laboratory at Cerro Prieto are presented. These data include analyses of dissolved ions and gases in exploration and production wells and in thermal springs, as observed in repeatedly collected samples and measurements of wellhead and separator pressures, flow of steam and water and size of orifice, condition of well, etc., at the time of chemical sampling. The discussion in Part I is intended to illustrate graphically the geochemical pattern of the Cerro Prieto fluids, to search for ion correlations, and to provide a preliminary discussion of a small number of topics. The figures and tables in Part II provide the bulk of information in the report. (JGB)
Date:
December 1, 1977
Creator:
Manon, A.; Mazor, E.; Jimenez, M.; Sanchez, A.; Fausto, J. & Zenizo, C.
Object Type:
Report
System:
The UNT Digital Library
Summary report of availability of geothermal data for potential direct heat application in Nevada
An assessment of available data on geothermal springs and wells was performed by first ascertaining which agencies both State and Federal maintain files which have water temperatures. The principal files are maintained by the Nevada Bureau of Mines and Geology, U.S. Geological Survey, and Water Resources Center-Desert Research Institute. The State Engineer's office maintains files of driller's logs. Requirements for completing driller's logs under subsection 5 states water temperature will be reported, if thermometer is unavailable an estimated temperature will be given as cold, warm or hot. The second phase of the assessment of available data to determine the quality of the data in each file was performed by inventory of files and by cross-correlating files by cursory examination. An estimate of the number of entries in the Nevada Bureau of Mines and Geology (NBMG) file with inferred temperatures that could be associated with confidence to replicate data was also made.
Date:
September 1, 1977
Creator:
Trexler, Dennis T.
Object Type:
Report
System:
The UNT Digital Library
Environmental assessment report: joint ERDA/GPE massive hydraulic fracturing experiment, Natural Buttes Unit, Uintah Co. , Utah
This environmental assessment was prepared as a negative declaration regarding the environmental impacts associated with the joint Gas Producing Enterprises (GPE) and ERDA project to stimulate six natural gas wells by massive hydraulic fracturing in the Uinta Basin of Utah. The results of this program could prove valuable in the exploitation of those potentially recoverable gas reserves in low permeability reservoirs as identified in the National Gas Survey by the Federal Power Commission. This assessment was prepared in accordance with Title 10, Part II of the Code of Federal Regulations for the implementation of the NEPA.
Date:
January 3, 1977
Creator:
Tonnessen, K. A.
Object Type:
Report
System:
The UNT Digital Library
Sampling and characterization of suspended solids in brine from Magmamax No. 1 well
When high temperature, high salinity geothermal brines are cooled, appreciable quantities of solids precipitate. These suspended solids can cause extensive erosion and plugging in power plant components. In addition, there is considerable concern that reinjection of these solids with spent brine may plug the geologic formation adjacent to the reinjection wells. Work done to sample these solids and characterize them so that processes can be devised for their removal or control is described. Suspended solids produced in brine from Magmamax No. 1 well consist primarily of an iron-rich amorphous silica gel. A sampling apparatus to filter these solids out of high temperature, high pressure brine streams is described. Their chemical composition and physical description are discussed. Rates of production of suspended solids are given for brines flashed through nozzles and flashed in steam separators. Control of solids production by acidification to a pH <4.5 is described. At this time, control by acidification seems to offer an attractive alternative to conventional methods (filtering, settling, etc.) for removing suspended solids from spent brine prior to reinjection.
Date:
June 1, 1977
Creator:
Hill, J. H. & Otto, C. H., Jr.
Object Type:
Article
System:
The UNT Digital Library
Bodcau In Situ Combustion Project. First annual report. [Simultaneous injection of air and water]
Objectives of the project are to demonstrate the technical efficiency and economics of the simultaneous air and water in situ combustion process. The project is being conducted on five recently developed patterns of Cities Service Company's Bodcau Fee ''B'' lease in the Bellevue Field. The five patterns were a part of an eight-pattern expansion of Cities' combustion operations in the field. Twenty-nine producers and five injectors are included in the five patterns. Three compressors with a combined output of 20 MMCFD at 250 psig provide the air for combustion. Ignition of the five patterns was accomplished using a 30-kW, 440-volt, three-phase heater. The ignition phase began following air injectivity and falloff testing in August 1976 and was completed on September 24, 1976. Following ignition and completion of facility construction, five temperature observation wells were drilled and will be used to monitor the progress of the combustion front. Laboratory combustion tube runs and produced oil and gas analyses were made. Field tests included falloff and pulse tests. Production steadily increased from 69 BOPD in June 1976 to 420 in June 1977. Combustion has been monitored by gas analyses at producing wells. The five injection wells were converted to simultaneous air and …
Date:
September 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Support research for development of improved geothermal drill bits. Semi-annual report
Progress is summarized on: material selection, fabrication and testing of MK-II bits; and seal and lubrication evaluation. Candidate steel and carbide properties were evaluated in laboratory tests before final selections were made for the MK-II bit. The sealed bit program covers extensive testing of conventional elastomeric seals, experimental elastomeric seals, and experimental heterogeneous seals, as well as lubricant tests using a specially constructed test machine. (MHR)
Date:
December 1, 1977
Creator:
Hendrickson, R.R.; Jones, A.H.; Green, S.J. & Winzenried, R.W.
Object Type:
Report
System:
The UNT Digital Library
Phase III: well testing and analysis. Progress report for the third quarter of federal FY77
Activity in all areas of geosciences, well testing, numerical modelling, and analysis are reported. Brief reports are presented for the following geoscience tasks: seismic studies, geochemistry, hydrology, and physical properties of rocks. Also included is a report on numerical modelling, which outlines the current status of the study on free convection in a multi-layer geothermal reservoir with application to the Kapoho Geothermal Field. Six cases are under review to determine the effects of different Rayleigh numbers and length to height ratios on reservoir characteristics. The well testing program and to the preliminary analysis and interpretation of data are emphasized. A 1000-hour (42-day) flow test was completed. Initially it had been the intent to conduct a 90-day flow test, but the nuisance effect of both the noise and the hydrogen sulfide emissions - in conjunction with the fact that the pressure-time curves seemed well-stabilized after five time cycles on a semi-log plot - led to the decision to terminate the test after six weeks. The well testing data for HGP-A, continues to look quite favorable, whether considered from the quality of the fluid or the probable reliability and longevity of the well. Each flashing cycle results in slight improvement in flow …
Date:
July 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Commercial scale demonstration enhanced oil recovery by miceller-polymer flooding. M-1 project: facilities report
ERDA and Marathon Oil Company contracted together for a commercial scale demonstration of enhanced oil recovery by the Maraflood (TM) oil recovery process. This M-1 Project is located within Sections 15, 16, 21 and 22, T6N, R13W, Crawford County, Illinois, encompassing approximately 407 acres of Robinson Sand reservoir developed in the first decade of the century. The area covers portions of several waterfloods developed on 10-acre spacing in the 1950's that were approaching their economic limit. This report describes all M-1 Project facilities, how they were prepared or constructed, their purpose and how they operate: (1) wells (drilling and completion); (2) production facility; (3) injection facility; and (4) various service systems required during project development and/or operation. (48 fig, 7 tables) (DLC).
Date:
April 1, 1977
Creator:
Knight, B. L.
Object Type:
Report
System:
The UNT Digital Library
Environmental impact assessment: chemical explosive fracturing project, Petroleum Technology Corporation/Columbia Gas Transmission Corporation, Lincoln County, West Virginia
This review of the plans for the chemical explosive fracturing of the Devonian shales of Lincoln County, W. Va., for natural gas stimulation includes an assessment of the environmental effects. Alternatives, mitigating factors, cost benefit analysis, potential conflicts with other plans and programs, and relation of short-term use to long-term productivity are covered briefly. It is concluded that the proposed project does not constitute a major federal action significantly affecting the environment as defined by NEPA. 4 figures. (DLC)
Date:
January 19, 1977
Creator:
Tonnessen, Kathy A.
Object Type:
Report
System:
The UNT Digital Library
Assessment of Geothermal Development in Puna, Hawaii
The following subjects are discussed: the district of Puna prior to geothermal development, socioeconomic conditions, alternative modes of geothermal development, social benefits and costs of geothermal development, and geothermal development policy and its direction. (MHR)
Date:
January 1977
Creator:
Kamins, Robert M. & Tinning, Karla J.
Object Type:
Report
System:
The UNT Digital Library
Geologic setting and geochemistry of thermal water and geothermal assessment, Trans-Pecos Texas. Final report, June 1, 1976-May 31, 1977
Hot springs and wells in West Texas and adjacent Mexico are manifestations of active convective geothermal systems, concentrated in a zone along the Rio Grande between the Quitman Mountains and Big Bend National Park. Maximum temperatures are 47/sup 0/ and 72/sup 0/C for hot springs and wells in Texas and 90/sup 0/C for hot springs in Mexico within 5 km of the border. Existing information is summarized and the results of a 1-year intensive study of the area are presented. The study includes several overlapping phases: (1) compilation of existing geologic information, both regional studies of geology, structure and geophysics, and more detailed local studies of individual hot spring areas; (2) detailed geologic mapping of hot spring areas to understand the origin and geologic controls of hot springs; (3) field measurement and sampling of hot spring or well waters for geochemical analysis; and (4) synthesis and interpretation of the data.
Date:
January 1, 1977
Creator:
Henry, C. D.
Object Type:
Report
System:
The UNT Digital Library
Full-scale laboratory drilling tests on sandstone and dolomite. Final report
Full-scale laboratory drilling experiments were performed under simulated downhole conditions to determine what effect changing various drilling parameters has on penetration rate. The two rock types, typical of deep oil and gas reservoirs, used for the tests were Colton Sandstone and Bonne Terre Dolomite. Drilling was performed with standard 7/sup 7///sub 8/ inch rotary insert bits and water base mud. The results showed the penetration rate to be strongly dependent on bit weight, rotary speed, and borehole mud pressure. There was only a small dependence on mud flow rate. The drilling rate decreased rapidly with increasing borehole mud pressure for borehole pressures up to about 2,000 psi. Above this pressure, the borehole pressure and rotary speeds had a smaller effect on penetration rate. The penetration rate was then dependent mostly on the bit weight. Penetration rate per horsepower input was also shown to decrease at higher mud pressures and bit weights. The ratio of horizontal confining stress to axial overburden stress was maintained at 0.7 for simulated overburden stresses between 0 and 12,800 psi. For this simulated downhole stress state, the undrilled rock sample was within the elastic response range and the confining pressures were found to have only a …
Date:
December 1, 1977
Creator:
Black, A.D.; Green, S.J. & Rogers, L.A.
Object Type:
Report
System:
The UNT Digital Library