A Method of Measuring the Thermal Conductivity of Rock Cores
A method of measuring the thermal conductivity of long rock core samples is described. It is an adaptation of Bidwell's method of measuring the thermal conductivity of metals. The core is packed in Silocel in a cylindrical container. Heat is supplied by a flat electric heater on one end of the...
| Published in: | Journal of Applied Physics |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
AIP Publishing
1941
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1063/1.1712930 https://pubs.aip.org/aip/jap/article-pdf/12/6/498/7913240/498_1_online.pdf |
| Summary: | A method of measuring the thermal conductivity of long rock core samples is described. It is an adaptation of Bidwell's method of measuring the thermal conductivity of metals. The core is packed in Silocel in a cylindrical container. Heat is supplied by a flat electric heater on one end of the core sample, and measurements of temperature are made along the core and at several radial distances in the insulator. Isothermal surfaces in the insulator are determined and found to be conical surfaces within several centimeters of the core. These are parallel for some distance along the core. Using this fact the conductivity of the core is computed relative to that of the Silocel. A value 5.92 × 10−3 cal./cm deg. sec. was obtained for a sample of Norite and 2.59 × 10−3 for a Pyrex rod at room temperature. |
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