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1,488
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2,842 Matching Results
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Advanced turbodrills for geothermal wells
The development of a new high-temperature, 350/sup 0/C advanced turbodrill for use in drilling geothermal wells is underway. Existing downhole drilling motors are temperature limited because of elastomeric degradation at elevated temperature. The new turbodrill contains high-torque turbine blades and improved seals which allow higher bit pressure drops. This new geothermal turbodrill which is designed for improved directional drilling offers economic alternatives for completing geothermal wells. The advanced turbodrill will be tested in the Los Alamos Scientific Laboratory's hot dry rock geothermal wells.
Date:
January 1, 1978
Creator:
Maurer, W. C.; Rowley, J. C. & Carwile, C.
Object Type:
Article
System:
The UNT Digital Library
An Analysis of Stream Temperatures, Green River Basin, Wyoming
From abstract: This report presents a method for estimating temperatures of streams in the Green Water Basin, Wyoming.
Date:
January 1978
Creator:
Lowham, H. W.
Object Type:
Report
System:
The UNT Digital Library
Applied research on energy storage and conversion for photovoltaic and wind energy systems. Volume I. Study summary and concept screening. Final report
This study was directed at a review of storage technologies, and particularly those which might be best suited for use in conjunction with wind and photovoltaics. The potential ''worth'' added by incorporating storage was extensively analyzed for both wind and photovoltaics. Energy storage concepts studied include (1) above ground pumped hydro storage, (2) underground pumped hydro storage, (3) thermal storage-oil, (4) thermal storage-steam, (5) underground compressed air storage, (6) pneumatic storage, (7) lead-acid batteries, (8) advanced batteries, (9) inertial storage (flywheel), (10) hydrogen generation and storage, and (11) superconducting magnetic energy storage. The investigations performed and the major results, conclusions, and recommendations are presented in this volume. (WHK)
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Assessment of surface geophysical methods in geothermal exploration and recommendations for future research
The four classes of geophysical methods considered are: passive seismic methods; active seismic methods; natural field electrical and electromagnetic methods; and, controlled-source electrical and electromagnetic methods. Areas of rsearch for improvement of the various techniques for geothermal exploration are identified. (JGB)
Date:
January 1, 1978
Creator:
Goldstein, N. E.; Norris, R. A. & Wilt, M. J.
Object Type:
Report
System:
The UNT Digital Library
Bell Creek Fiel micellar-polymer pilot demonstration first annual report, July 1976--September 1977
A Pilot Demonstration is being conducted to determine whether micellar-polymer flooding is an economically feasible technique for enhanced oil recovery from the Muddy Sand Unit ''A'' Reservoir of the Bell Creek Field, Powder River and Carter Counties, Montana. During the first year of this project extensive reservoir studies, site and pattern selection, design and selection of an optimal micellar-polymer system, water flood history matching and preliminary process simulations by numerical models, and development of pilot injection and production wells were completed. The major effort during the first contract year was the design for the Bell Creek pilot of two optimal micellar-polymer processes--one oil-external and one water-external; and the concomitant development of a Selection Methodology by which to decide upon the more suitable process by means of a standard set of laboratory experiments and numerical simulations. This effort was completed. The oil-external design was selected for Bell Creek application based upon its superior performance in the standard test series and simulations. The advantages of the Bell Creek oil-external design appear to be better recovery performance, mobility control, and protection against divalent ions. 30 tables, 41 figs.
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Bibliography of the Geology and Hydrology of the Albuquerque Greater Urban Area, Bernalillo and Parts of Sandoval, Santa Fe, Socorro, Torrance, and Valencia Counties, New Mexico
A bibliography which contains over 500 references for the Albuquerque Greater Urban Area (AGUA). The intent is to be comprehensive in scope in the areas of hydrology and geology as well as introductory in other interdisciplinary areas.
Date:
1978
Creator:
Wright, Ann Finley
Object Type:
Report
System:
The UNT Digital Library
Big County Obituaries: 1978
Compiled transcription of obituaries printed in the Abilene Reporter-News during 1978, collected by volunteers and personnel of the Abilene Public Library.
Date:
1978
Creator:
Mount, Ann
Object Type:
Text
System:
The Portal to Texas History
Black shale studies in Kentucky. Annual report, October 1, 1977--September 30, 1978
Black shale studies have focussed on their geochemistry, stratigraphy, and subsurface characterization, and on the compilation of an archive of cored material. Technical progress made in these areas are reported. In addition, two Master's theses prepared under the stratigraphic study project and one under the geochemical study project are included and are abstracted and indexed separately. (JSR)
Date:
January 1, 1978
Creator:
Blackburn, W.H. (comp.)
Object Type:
Report
System:
The UNT Digital Library
Brownwood Bulletin (Brownwood, Tex.), Vol. 78, No. 67, Ed. 1 Sunday, January 1, 1978
Daily newspaper from Brownwood, Texas that includes local, state, and national news along with advertising.
Date:
January 1, 1978
Creator:
Deason, Gene
Object Type:
Newspaper
System:
The Portal to Texas History
Bulletin of the Texas Archeological Society, Volume 49, 1978
Annual journal of the Texas Archeological Society documenting research and findings of members as well as activities of the organization.
Date:
1978
Creator:
Texas Archeological Society
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Bureau of Economic Geology. 1978 annual report
Bureau research programs and projects are designed to address many of the State's major concerns in the areas of geologic, energy, mineral, land, and environmental resouces. Research programs incorporate geologic concepts that will build toward an understanding of a specific resource and its impact on human activities. In addition to resource assessments in uranium, lignite, and geopressured geothermal energy, the Bureau continued research into analysis of governmental policy related to energy. Systemic geologic mapping, coastal studies, basin analysis projects, and investigations in other areas of economic geology further indicate the range of research programs carried forward in 1978. Specifically, research on mineral resources and land resources, coastal studies, hydrogeology, basin studies, geologic mapping, and other research (tektites and meteorites, carboniferous of Texas, depositional environments of the Marble Falls Formation, Central Texas) are reported. The establishment of the Mining and Mineral Resources Research Institute is followed. Contracts and grant support and contract reports are listed. The publications eminating from the Bureau are listed. Services rendered by the Bureau and personnel information are included. (MCW)
Date:
January 1, 1978
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
The Burro, Yearbook of Mineral Wells High School, 1978
Yearbook for Mineral Wells High School in Mineral Wells, Texas includes photos of and information about the school, student body, teachers, and organizations.
Date:
1978
Creator:
Mineral Wells High School (Mineral Wells, Tex.)
Object Type:
Yearbook
System:
The Portal to Texas History
The California Condor, 1966-76: a Look at its Past and Future
Brief 1966-1976 summary of the California condor, including geographic distribution, population number, food supply, and external disturbances.
Date:
1978
Creator:
Wilbur, Stanford R.
Object Type:
Report
System:
The UNT Digital Library
California solar data manual
Factors that determined the data contents of the manual are presented. Estimates of errors in the data are provided, and the impact of these errors on solar design is discussed. The state is divided into 15 solar zones of roughly similar solar radiation conditions, which are illustrated along with page references to the most relevant solar and climate data. A guide to the data tables and graphs is provided, which are displayed under solar, climate, and sky charts. A guide is given to simplified design methods to predict performance and cost of solar heating and cooling systems. (MHR)
Date:
January 1, 1978
Creator:
Berdahl, P.; Grether, D.; Martin, M. & Wahlig, M.
Object Type:
Report
System:
The UNT Digital Library
Cementing of geothermal wells. Progress report No. 10, July--September 1978
Work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is continuing. Experimental work has been completed at the Colorado School of Mines. Samples of ..beta..-dicalcium silicate-silica cement developed in this program have been submitted for additional evaluation. The initial screening portion of this work has identified several promising systems that will undergo more rigorous testing. Dynamic brine exposure testing of several systems has been initiated at the East Mesa Geothermal Test Facility. Testing at the Niland test site is scheduled to start soon. Property verification tests on cements produced in the materials development phase of the program were initiated at the Bureau of Standards. Preliminary data are available for five cements exposed for 176 h to water at a temperature of 195/sup 0/C. Three of the cements exhibited strength losses during the test. An aluminum hydroxide cement and a polymer cement showed slight increases in strength after the exposure. These and longer-term data will be utilized in the selection of a material for use in the remedial cementing of a hot dry rock well at the Los Alamos Scientific Laboratory.
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Chemical analyses of waters from springs and wells from the Clear Lake Volcanic Area, northern California
Previous thermal water analyses from the Clear Lake area are mentioned. Sample collection, field analysis, and laboratory analysis are described. Results are tabulated. (MHR)
Date:
January 1, 1978
Creator:
Thompson, J. M.; Goff, F. E. & Donnelly, J. M.
Object Type:
Report
System:
The UNT Digital Library
Commercialization of geothermal resources
Twenty-two papers are included. Separate abstracts were prepared for twenty-one. One is listed by title. (MHR)
Date:
January 1, 1978
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Compilation of geothermal information: exploration
The Database for Geothermal Energy Exploration and Evaluation is a printout of selected references to publications covering the development of geothermal resources from the identification of an area to the production of elecric power. This annotated bibliography contains four sections: references, author index, author affiliation index, and descriptor index.
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Contaminant transport, revegetation, and trace element studies at inactive uranium mill tailings piles
The stabilization of inactive uranium mill tailings piles is presently under study. These studies have included investigations of stabilizing tailings by attempting to establish native vegetation without applying irrigation. Examination of processes which transport tailings or associated contaminants into the environment has been undertaken to better understand the containment provided by various stabilization methods. The uptake of toxic trace elements and radionuclides by vegetation has been examined as a mechanism of contaminant transport. The source terms of /sup 222/Rn from inactive piles have been determined as well as the attenuation of radon flux provided by shallow soil covers. The possibility of shallow ground water contamination around an inactive pile has been examined to determine the significance of ground water transport as a mode of contaminant migration. The rationale in support of trace element studies related to uranium milling activities is presented including the enrichment, migration, and toxicities of trace elements often associated with uranium deposits. Some concepts for the stabilization of inactive piles are presented to extrapolate from research findings to practical applications. 25 references, 8 tables.
Date:
January 1, 1978
Creator:
Dreesen, D.R.; Marple, M.L. & Kelley, N.E.
Object Type:
Article
System:
The UNT Digital Library
Contingency Plans for Chromium Utilization
This report is the product of the cooperation and expertise of all the individuals and companies cited in the Acknowledgements and is based on data collected through November 1976.
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Control of environmental impact of low-level aqueous fuel reprocessing wastes by deep-well disposal
The following conclusions are made: (1) the technology and much experience for this disposal method are available; (2) large areas of the U.S. offer geological formations suitable for deep well disposal, but substantial effort may be required in the choice of a specific site; (3) although costs are substantial, they are small compared to associated environmental and energy benefits; (4) impacts on water consumers would be minimized through regulatory checks of siting, construction, and monitoring, and also through natural dilution and radioactive decay; (5) disposal wells must satisfy regulations, of recently-increased stringency, on siting, design, construction, operation, monitoring, and decommissioning.
Date:
January 1, 1978
Creator:
Trevorrow, L.E. & Steindler, M.J.
Object Type:
Article
System:
The UNT Digital Library
CORES Operations Manual: Bureau of Mines Core Repository System
Report issued by the U.S. Bureau of Mines discussing the CORES operations manual. As stated in the abstract, "this report describes the new Bureau of Mines Core Repository System (CORES) and presents the methods for selecting, processing, and storing physical samples and descriptive data for future reference by earth scientists" (p. 1). This report includes tables, illustrations, and photographs.
Date:
1978
Creator:
United States. Bureau of Mines.
Object Type:
Report
System:
The UNT Digital Library
Development of a High-Temperature Two-Component Explosive for Geothermal Stimulation
Describes the status of a process that manufactures explosives downhole for injecting into formations. Shows results for oil and gas tests, where flow improvements ranged from 160% to 1300%. At this stage, the project consisted of laboratory tests of a number of explosives for possible use in geothermal dry steam or liquid dominated wells. Report has many pictures and tables. (DJE 2005)
Date:
January 1, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Developmental toxicology of energy-related pollutants
Separate abstracts were prepared for the 46 papers presented at the conference. (HLW)
Date:
January 1, 1978
Creator:
Mahlum, D. D.; Hackett, P. L. & Andrew, F. D.
Object Type:
Article
System:
The UNT Digital Library