Production/injection characteristics of slim hole and large-diameter wells at the Sumikawa Geothermal Field, JP
Conference
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OSTI ID:889299
Production and injection data from slim holes and large-diameter wells at the Sumikawa Geothermal Field, Japan, were analyzed to determine the effect of wellbore diameter on (1) the productivity/injectivity indices, and (2) on the discharge rate. The injectivity indices for Sumikawa boreholes do not depend on borehole diameter in any systematic manner; furthermore, the productivity indices (for boreholes with liquid feeds) are more or less equal to the injectivity indices. For boreholes with liquid feed zones, discharge rates scale with diameter according to a relationship previously presented by Pritchett. Pritchett's scaling rule does not appear to apply to discharge data from boreholes with two-phase feed zones; however, discharge characteristics of slim holes with two-phase feed zones can be used to infer production rates from large-diameter two-phase geothermal wells.
- Research Organization:
- S-Cubed, La Jolla, CA; Geo Hills Associates, Los Altos Hills, CA
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 889299
- Report Number(s):
- SGP-TR-150-6
- Country of Publication:
- United States
- Language:
- English
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