Development of the Optimum Numerical Reservoir Model of the Ogiri Geothermal Field, Kyushu, Japan, Using iTough2
- Key words
- Ogiri geothermal field, numerical reservoir model, natural state simulation, iTOUGH2
- Location
- Ogiri, Japan
- Conference
- Stanford Geothermal Workshop
- Year
- 2008
- Session
- Modeling
- Language
- English
- Paper number
- Kumamoto
Full text
1525KB, opens in a new tab
Abstract
A three dimensional numerical porous reservoir model of the Ogiri geothermal field was developed by the method of inversion analysis using the iTOUGH2 numerical simulator. Natural state simulations were carried out for matching temperature profiles of 11 wells before exploitation. The model was characterized by the presence of high permeable zone that represents main production zone of Ginyu fault and of probable recharge zone at depth located in the eastern part of the field. Permeability of 13 rock types and enthalpy and flow rate of deep recharge were estimated through the simulation. Temperature profiles of the wells located along the Ginyu fault were relativity well matched with the model.
Copyright 2008, Stanford Geothermal Program. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.