Characteristics of fractures based on FMI logs and cores in well WD-1 in the Kakkonda geothermal field, Japan
Conference
·
OSTI ID:175643
- Japan Metals and Chemicals Co., Ltd., Iwate (Japan); and others
The Formation MicroImager (FMI) logs and some cores have clarified continuously the bedding plane transition and the fracture distribution in an interval of 60-1,505 m depth in NEDO`s exploration well WD-1. A frequency of fractures analyzed from FMI logs is correlative to the permeable zone in the Kakkonda geothermal reservoir. Particularly, the result of FMI interpretation around 980.70 m where there was a circulation loss, verifies the structure of the F-1 fracture in the Kakkonda geothermal field. On the basis of orientations of drilling induced fractures and borehole breakouts analyzed from FMI logs in 60-2,550 m depth, the horizontal maximum stress axis does not change at least from surface to 2,200 m depth in the Kakkonda geothermal field.
- OSTI ID:
- 175643
- Report Number(s):
- CONF-951037--
- Country of Publication:
- United States
- Language:
- English
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