Estimating Water Saturation at The Geysers Based on Historical Pressure and Temperature Production Data

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Abstract/Contents

Abstract: Available historical data from 503 wells at The Geysers geothermal field were analyzed to estimate in-situ water saturation using zero-dimensional models of the reservoir. The pressure and temperature performance data of most of the wells demonstrate "dry-out" due to the formation of superheated steam. The in-situ water saturation of the reservoir can be inferred by using zero-dimensional models derived from mass and energy conservation equations. Techniques to identify the initial reservoir temperature and the dry-out temperature were developed and used in the saturation calculations. Effects of reinjection of The Geysers were analyzed and compared to models of depleted reservoirs. Regional trends of the saturation values plotted in the Cartesian plane were also investigated.

Type of resource	text
Date created	June 2003

Author	Reyes, Jericho L. P.
Primary advisor	Horne, Roland N.
Degree granting institution	Stanford University, Department of Petroleum Engineering

Subject	School of Earth Energy & Environmental Sciences
Genre	Thesis

Location	https://purl.stanford.edu/bp369vt9567

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Preferred Citation: Reyes, Jericho L. P. (2003). Estimating Water Saturation at The Geysers Based on Historical Pressure and Temperature Production Data. Stanford Digital Repository. Available at: https://purl.stanford.edu/bp369vt9567

Master's Theses, Doerr School of Sustainability

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