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FP5

HE Résumé de rapport

Project ID: FIKW-CT-2001-00132
Financé au titre de: FP5-EAECTP C
Pays: Germany

Geoelectric measurements to determine the water content in the opalinus clay and its alteration as a result of heating

The geoelectric measurements show a homogeneous distribution of the resitivity within the Opalinus clay of the test field, which indicates full water saturation. Only close to the floor the resitivity is comparatively high as a result of micro fissures and drying. Within the investigation period no desaturation as a result of elevated temperature was observed.

The investigation of samples taken from the test field after heater shut-down indicated that within the heating period of 18 months up to 50 °C, no significant alteration of the Opalinus clay with regard to water content was observed. For much longer time periods within the temperature range up to 90°C alteration cannot be excluded.

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Klaus WIECZOREK, (Scientist)
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