| Title | Application of Reservoir Engineering to Takigami Geothermal Field, Oita Prefecture, Japan |
|---|---|
| Authors | Shimada, T. |
| Year | 1988 |
| Conference | Japan International Geothermal Symposium |
| Keywords | |
| Abstract | Downhole pressure monitoring during well testing has become to be often applied to reBervoir evaluation in several Japanese geothermal fields. In general, geothermal reservoir evaluation is very difficult because hydrological condition of geothermal reservoir is strongly anisotropic and heterogeneous. Pressure monitoring is a useful method to overcome this difficulty. IdemitBu Geothermal Co., Ltd. have installed a pressure monitoring system with capillary tubing since 1984 and have successfully been gathering a large amount of reservoir pressure data (see Fig. 1) in Takigami geothermal area located in the south-western part of Oita prefecture. This data was analyzed to obtain the detail of permeability distribution, which is useful to withdrawable reserve estimation and well allocation study for exploitation Through several kind of studies, it has been proved that Takigami reservoir has a potential to supply geothermal fluid enough to run a 55MW power plant. In this paper we describe how simulation models were supported with pressure monitoring data and the way to apply some models to Takigami geothermal area. |