Performance matching and predicting of a geothermal reservoir

Seki, Arthur S.
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University of Hawaii at Manoa
The initial conditions (physical and chemical state) of a geothermal reservoir and its fluids are important information needed in geothermal reservoir engineering for determining the future productivity of the reservoir. An optimization scheme was employed to minimize the least squares function and determine the optimum initial conditions. Using the mass, energy, and volumetric balance equations, the initial param-Beters were obtained by matching the production data plot of average reservoir pressure versus cumulative mass produced for a compressed liquid, saturated liquid-steam, and superheated steam reservoir. Once a good curve match was attained, the performance projection of the geothermal reservoir was made at different production rates. A successful curve match was found to be highly dependent on the constraints chosen in the optimization scheme. Mass influx, as well as porosity also proved to be an influencing factor in the determination of the initial conditions.
Thesis (M. S.)--University of Hawaii at Manoa, 1976. Bibliography: leaves 176-178.
theses, modeling, reservoir assessment, Hawaii
Seki AS. 1976. Performance matching and predicting of a geothermal reservoir. Honolulu (HI): University of Hawaii at Manoa.
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