Natural Recharge Following Exploitation of a Vapour-Dominated Geothermal System
- Key words
- recharge, vapour-dominated, vaporisation
- Conference
- World Geothermal Congress
- Year
- 1995
- Session
- SECTION 6 - Resource Evaluation and Modeling
- Language
- English
- Paper number
- 3-fitzgerald
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Abstract
We examine the natural recharge of vapour-dominated geothermal reservoirs through the migration of groundwater. systems are typically overlain by a liquid-saturated region. As vapour is extracted from the lower zone, the pressure within the reservoir and liquid migrates downwards into the reservoir. As liquid invades the hot rock, a fraction of the water vaporises. We show as the liquid advances into the reservoir, the pressurc within the system increases towards the saturation pressure of the reservoir and the fraction vaporising decreases.
Copyright 1995, International Geothermal Association. 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.