Mise-a-la-masse mapping of the HGP-A geothermal reservoir, Hawaii

Conference · Mon Sep 01 04:00:00 EDT 1980 · Trans. - Geotherm. Resour. Counc.; (United States)

OSTI ID:6375177

Kauahikaua, J ^[1]; Mattice, M; Jackson, D

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1. Geological Survey, Honolulu, HI

The HGP-A well casing was used as an electrode in a mise-a-la-masse experiment to define the boundaries of the geothermal reservoir. Electric potentials were measured to distances of 2 km from the drill hole. Although cased or lined the full 1967 m, only the top 670 m of the HGP-A casing are electrically continuous; the electrode did not extend into the high-temperature part of the reservoir. Nevertheless, the data did define a compartment of dike-impounded freshwater of higher resistivity than the surrounding saltwater-saturated rock. This dike-impounded water is warm and apparently overlies the actual reservoir; however, the lateral boundaries impounding this water probably confine geothermal fluids at depth.

• OSTI ID: 6375177
• Report Number(s): CONF-800920-
• Conference Information: Journal Name: Trans. - Geotherm. Resour. Counc.; (United States) Journal Volume: 4
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
ELECTRIC POTENTIAL
ELECTRICAL SURVEYS
ENERGY SYSTEMS
FLUIDS
GEOPHYSICAL SURVEYS
GEOTHERMAL FLUIDS
GEOTHERMAL SYSTEMS
GEOTHERMAL WELLS
HAWAII
HYDROTHERMAL SYSTEMS
KILAUEA VOLCANO
MAPPING
NORTH AMERICA
RESISTIVITY SURVEYS
SURVEYS
USA
VOLCANOES
WELL CASINGS
WELLS
WESTERN REGION