Title: |
Numerical Simulation of the Mori Geothermal Field, Japan |
Authors: |
Y. Sakagawa, M. Takahashi, M.Hanano, T. Ishido, N. Demboya |
Geo Location: |
Nigorikawa Caldera, Japan; Mori (Hokkaido), Japan |
Conference: |
Stanford Geothermal Workshop |
Year: |
1994 |
Session: |
Modeling II |
Language: |
English |
File Size: |
676KB |
View File: |
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A numerical study of the Mori geothermal field which consisted of a series of three-dimensional natural state modeling and history matching was carried out with porous models. Finally satisfactory fits both on temperature and pressure of the natural state and on pressure history caused by exploitation were obtained. The results indicate that the deep hot water ascends mainly through the fractures near the caldera wall and the fractures confined to some lithofaces, and some of the ascending hot water flows to the west from the caldera. A sketch of the geological structure, the way of making up the initial numerical model, the way of concluding free parameters, and results of calculations of natural state modeling and history matching for the best numerical model are presented.
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