BOREHOLE THERMAL CONDUCTIVITY MEASUREMENTS

A system for making thermal conductivity measurements in dry boreholes. A probe having a temperature sensor, a heater, and expander means is inserted into a borehole. The expander means is actuated so that the temperature sensor contacts the sidewall. The heater then heats the sensor and temperature...

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Bibliographic Details
Main Authors TRIBBLE, ROBERT E, HARDISON, JACK E, HOWELL, EDDIE P, YOUNGMAN, CARL A
Format Patent
LanguageEnglish
Published 09.04.1974
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A system for making thermal conductivity measurements in dry boreholes. A probe having a temperature sensor, a heater, and expander means is inserted into a borehole. The expander means is actuated so that the temperature sensor contacts the sidewall. The heater then heats the sensor and temperature measurements are made at predetermined intervals to obtain a heating curve. The slope of the plot for temperature versus logarithmic time is linear and proportional to the conductivity.
Bibliography:Application Number: CA19710124711