ANALYSIS OF THE GEYSERS WELL FIELD PERFORMANCE DATA TOINFER IN-SITU WATER SATURATION

摘要

Available data on the Geysers geothermal field were analyzed to estimate in-situ waterrnsaturation in the reservoir. The pressure and temperature performance data of some ofrnthe wells demonstrate "dry-out" due to the formation of superheated steam. The in-siturnwater saturation of the reservoir can be inferred by using zero-dimensional modelsrnderived from mass and energy conservation equations. Techniques to identify the initialrnreservoir temperature and the dry-out temperature were developed and used in thernsaturation calculations.