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RESEARCH PAPERS

Downhole Measurements of Thermal Conductivity in Geothermal Reservoirs

[+] Author and Article Information
H. D. Murphy, R. G. Lawton

Los Alamos Scientific Laboratory of the University of California, Los Alamos, N.M.

J. Pressure Vessel Technol 99(4), 607-611 (Nov 01, 1977) (5 pages) doi:10.1115/1.3454580 History: Received May 31, 1977; Online October 25, 2010

Abstract

The line source method of determining thermal conductivity is extended to include the transient effect associated with the fluid in flowing geothermal wells. The general equations describing transient heat flow are utilized. Approximate solutions are derived and compared to the exact solution of the general equations. The proposed method is operationally simple since the heater, and the associated problems of obtaining adequate thermal contact between the heater and the sides of the borehole are eliminated. Using this method downhole measurements were obtained and favorably compared with laboratory measurements on characterized core specimens taken from wells in a hot dry rock geothermal reservoir.

Copyright © 1977 by ASME
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