NEDOís Development of Fracture-Type Reservoir Exploration Technology
- Location
- Tanna, Japan; Yutsubo, Japan; Kakkonda, Japan; Ogiri, Japan; Sengan Geothermal Area
- Conference
- New Zealand Geothermal Workshop
- Year
- 1996
- Session
- Exploration
- Language
- English
Full text
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Abstract
For geothermal reservoir exploration, the New Energy and Industrial Technolorn Development Organization (NEDO) in Japan has been developing such seismic methods as cross-well tomography, VSP and reflection. For the first two methods, which require wells for measurement, NEDO has developed a new threecomponent, multi-level downhole receiver which is able to operate under temperatures of up to 260?C (500' F). All three methods have been experimentally used to evaluate the geological characteristics of fiacture-type reservoirs at four geothermal fields possessing different types of fiactures and geological structure. As a result of the experiments using these methods, NEDO has obtained accurate seismic images which delineate subsurface structure in volcanic terrain in Japan.
Copyright 1996, University of Auckland. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.