A Study of Production/lnjection Data from Slim Holes and Large-Diameter Wells at the Takigami Geothermal Field, Kyushu, Japan

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Report: A Study of Production/lnjection Data from Slim Holes and Large-Diameter Wells at the Takigami Geothermal Field, Kyushu, Japan

Abstract

Production and injection data from nine slim holes and sixteen large-diameter wells at the Takigami Geothermal Field, Kyushu, Japan were analyzed in order to establish relationships (1) between injectivity and productivity indices, (2) between productivity/injectivity index and borehole diameter, and (3) between discharge capacity of slim holes and large-diameter wells. Results are compared with those fiom the Oguni and Sumikawa fields. A numerical simulator (WELBOR) was used to model the available discharge data from Takigami boreholes. The results of numerical modeling indicate that the flow rate of large-diameter geothermal production wells with liquid feedzones can be predicted using data fiom slim holes. These results also indicate the importance of proper

well design.

Authors 
S. K. Garg, J. Combs, Furnio Azawa and Hiroki Gotoh





Organization 
Sandia National Laboratories



Published 
National Technical Information Service, 1996



Report Number 
SAND96-2555


DOI 
Not Provided
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Online 
Internet link for A Study of Production/lnjection Data from Slim Holes and Large-Diameter Wells at the Takigami Geothermal Field, Kyushu, Japan

Citation

S. K. Garg, J. Combs, Furnio Azawa, Hiroki Gotoh (Sandia National Laboratories). 1996. A Study of Production/lnjection Data from Slim Holes and Large-Diameter Wells at the Takigami Geothermal Field, Kyushu, Japan. US Department of Commerce: National Technical Information Service. Report No.: SAND96-2555. Contract No.: AG4388.