Reservoir Compressibiliy from Water-Influx Modeling of Liquid-Dominated Systems
- Location
- Svartsengi, Iceland; Ahuachapan, El Salvador; Wairakei, Iceland
- Conference
- Stanford Geothermal Workshop
- Year
- 1989
- Session
- Innovative Research/Field Perfomance
- Language
- English
Full text
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Abstract
A water influx model was used to history match the pressure drawdown behavior of three liquid-dominated geothermal reservoirs. The compressibilities of confined and unconfined liquid-only reservoirs systems were shown to differ by one or two orders of magnitude in the temperature range of 300C to 100C.History matching of production data from three high temperature fields (Ahuachapan, Svartsengi and Wairakei) yielded reservoir compressibility values similar to what would be expected for unconfined (free liquid level) systems.
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