Actions for In-situ determination of heat flow in unconsolidated sediments [electronic resource].

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In-situ determination of heat flow in unconsolidated sediments [electronic resource].

Published
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1979.
Physical Description
Pages: 79 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Subsurface thermal measurements are the most effective, least ambiguous tools for identifying and delineating possible geothermal resources. A technique was developed which provides reliable real-time determinations of temperature, thermal conductivity, and hence, of heat flow during the drilling operation in unconsolidated sediments. A combined temperature, gradient, and thermal conductivity experiment can be carried out, by driving a thin probe through the bit about 1.5 meters into the formation in the time that would otherwise be required for a coring trip. Two or three such experiments over the depth range of, say, 50 to 150 meters provide a high-quality heat-flow determination at costs comparable to those associated with a standard cased gradient hole to comparable depths. The hole can be backfilled and abandoned upon cessation of drilling, thereby eliminating the need for casing, grouting, or repeated site visits.
Report Numbers
E 1.99:usgs-ofr-79-593
usgs-ofr-79-593
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Note
Published through SciTech Connect.
01/01/1979.
"usgs-ofr-79-593"
"DE83902316"
Sass, J.H.; Kennelly, J.P. Jr.; Moses, T.H. Jr.; Ziagos, J.P.; Wendt, W.E.
Geological Survey, Denver, CO (USA)
View MARC record | catkey: 14385726