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Modeling studies on Cerro Prieto

Author
Lippmann, M. J.
Published
United States : [publisher not identified], 1982
Springfield, Va.: National Technical Information Service, [approximately 1982]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Bodvarsson, G. S.

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Summary
Numerical simulation techniques are employed in studies of the natural flow of heat and mass through the Cerro Prieto reservoir and of the effects of exploitation on the field's behavior. We consider a two-dimensional model that is based on the hydrogeologic model of Halfman et al. (this volume). The numerical code MULKOM is used in the simulation studies. In the simulations of the natural state of the Cerro Prieto system, we employ five models that differ in prescribed material properties, boundary conditions, or geologic features. For each of these models we compute the steady-state pressure and temperature distributions and compare them against known preproduction pressures and temperatures. A good match between observed and calculated temperature and pressure distributions was obtained, and a natural hot-water flow rate of about 10/sup -2/ kg/s m through the geothermal system was calculated. The models are then used to simulate the behavior of the field under exploitation during the years 1973 to 1978. An acceptable match of temperature and pressure changes in the producing reservoir was obtained. The resulting flow patterns illustrate the effects of cold water recharge, boiling zones and hot fluid flow from depth on the overall field performance. The fluid recharge patterns agree with some of those postulated in earlier studies.
Report Numbers
DE83009053; LBL-14897; CERRO-PRIETO-25; CONF-8208109-6
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC03-76SF00098
OSTI Identifier 6465813
Research organization: Lawrence Berkeley Lab., CA (USA).
View MARC record | catkey: 47329790