Reservoir simulation and geochemical study of Cerro Prieto I wells

Conference · Thu Mar 01 04:00:00 EST 1990

OSTI ID:6981507

Lippmann, M J ^[1]; Truesdell, A H ^[2]

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1. Lawrence Berkeley Lab., CA (USA)
2. Geological Survey, Menlo Park, CA (USA)

Combined reservoir simulation and geochemical data analysis are used to investigate the effects of recharge and other reservoir processes occurring in the western part of the Cerro Prieto, Mexico, geothermal field (i.e., Cerro Prieto I area). Enthalpy-based temperatures and bottomhole temperatures are calculated based on simplified models of the system, considering different reservoir boundary conditions and zones of contrasting initial temperatures and reservoir properties. By matching the computed trends with geothermometer-based temperature and enthalpy histories of producing wells, the main processes active in the western area of Cerro Prieto are identified. This part of the geothermal system is strongly influenced by nearby groundwater aquifers; cooler waters readily recharge the reservoirs. In response to exploitation, the natural influx of cold water into the shallower alpha reservoir is mainly from the west and down Fault L, while the recharge to the deeper beta reservoir in this part of the field, seems to be only lateral, from the west and possibly south. 11 refs., 12 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6981507
• Report Number(s): LBL-28851; CONF-900115--3; ON: DE90015727
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150904* -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
AQUIFERS
BRINES
CERRO PRIETO GEOTHERMAL FIELD
CHEMISTRY
ENTHALPY
FLUIDS
GEOCHEMISTRY
GEOLOGIC MODELS
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
GROUND WATER
Geothermal Legacy
HYDROGEN COMPOUNDS
MECHANICS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRODUCTION
ROCK MECHANICS
TEMPERATURE MEASUREMENT
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
WATER