An In-Situ Thermal Conductivity Probe

  • G. Musmann
  • W. Kessels
Conference paper

Abstract

It was the aim of this investigation to develop and test a probe for in-situ thermal conductivity measurements also applicable for rocks. First a new theory for a spherical probe for absolute measurements was developed. A sensor including the spherical probe (heater) and a downhole hydraulic drilling mechanism for drilling well defined special side boreholes was constructed and tested in limestone clay and slate. A first application of the sensor was done in flat drillings around Lake

Laach (Eifel) in addition to temperature gradient measurements. The data evaluation of the temperature and thermal conductivity measurements are presented. High gradients compared to the Eifel area could be detected from 2 out of 5 flat drillings close to Lake Laach.

Keywords

Thermal Diffusivity Thermal Conductivity Measurement Spherical Probe Good Straight Line Constant Surface Temperature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Reference

  1. Kessels, W., Theoretische und experimentelle Untersuchungen an einer Kugel sonde für in-situ Wärmeleitfähigkeitsmessungen, Diplomarbeit, Institut für Geophysik, Technische Universität Braunschweig, 1977.Google Scholar

Copyright information

© ECSC, EEC, EAEC, Brussels and Luxembourg 1980

Authors and Affiliations

  • G. Musmann
    • 1
  • W. Kessels
    • 1
  1. 1.Institut für Geophysik und MeteorologieTechnische Universität Carolo-WilhelminaBraunschweigFed. Rep. of Germany

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