Anisotropic Resistivity Inversion of VES Curves at Hatchobaru Geothermal Field, Japan
- Key words
- Exploration; Japan; Hatchobaru; Electrical Conductivity; Geophysics; Modeling; Conceptual Models; Kyushu Electric; Resistivity; VES; Schlumberger Soundings
- Location
- Otake-Hatchobaru, Japan
- Conference
- Geothermal Resources Council Transactions
- Year
- 1984
- Session
- Exploration; Geophysical surveys; Resistivity surveys; Reser
- Language
- English
Abstract
A new method of interpretation of vertical resistivity sounding curves is presented based on an anisotropic layered earth model. The method has been applied to the VES data in the vicinity of production region and a virgin area in the Hatchobaru geothermal field. The result of interpretation are compared with the drilling data from the production wells. Concluding, an acceptable geoeletric model was obtained for the hydrothermal system at the Hatchobaru area. In addition, it was proved that anisotropic coefficients determined from the resistivity inversion provide the valuable information not only on the true resistivity layer section, but on the estimation of fractures which are the vertical or the horizontal ones. From this study, it was found that most of production wells located near the VES stations in the domain IV in the anisotropic coefficient map.
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