skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Summary of recent progress in understanding the Cerro Prieto Geothermal Field, Baja, California, Mexico

Abstract

Geological and geophysical studies indicate that the Cerro Prieto reservoir is quite heterogeneous due to complex lithofacies fault structures, and hydrothermal alteration. Geochemical investigations have provided clues on the origin of the geothermal fluids, their recharge paths and on the reservoir processes accompanying the exploitation of the field. Well tests have yielded information on the permeability of the reservoir. (MHR)

Authors:
;
Publication Date:
Research Org.:
California Univ., Berkeley (USA). Lawrence Berkeley Lab.
OSTI Identifier:
6817704
Alternate Identifier(s):
OSTI ID: 6817704
Report Number(s):
LBL-11100; CONF-800704-3
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: NATO/CCMS meeting on pilot studies, Paris, France, 15 Jul 1980
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; CERRO PRIETO GEOTHERMAL FIELD; GEOCHEMICAL SURVEYS; GEOLOGICAL SURVEYS; GEOPHYSICAL SURVEYS; EXPLORATORY WELLS; GEOLOGIC FAULTS; GEOTHERMAL FLUIDS; HYDROTHERMAL ALTERATION; ORIGIN; FLUIDS; GEOLOGIC STRUCTURES; GEOTHERMAL FIELDS; SURVEYS; WELLS Geothermal Legacy 150300* -- Geothermal Exploration & Exploration Technology; 150202 -- Geology & Hydrology of Geothermal Systems-- Non-USA-- (-1989)

Citation Formats

Lippmann, M.J., and Witherspoon, P.A.. Summary of recent progress in understanding the Cerro Prieto Geothermal Field, Baja, California, Mexico. United States: N. p., 1980. Web.
Lippmann, M.J., & Witherspoon, P.A.. Summary of recent progress in understanding the Cerro Prieto Geothermal Field, Baja, California, Mexico. United States.
Lippmann, M.J., and Witherspoon, P.A.. Tue . "Summary of recent progress in understanding the Cerro Prieto Geothermal Field, Baja, California, Mexico". United States. doi:. https://www.osti.gov/servlets/purl/6817704.
@article{osti_6817704,
title = {Summary of recent progress in understanding the Cerro Prieto Geothermal Field, Baja, California, Mexico},
author = {Lippmann, M.J. and Witherspoon, P.A.},
abstractNote = {Geological and geophysical studies indicate that the Cerro Prieto reservoir is quite heterogeneous due to complex lithofacies fault structures, and hydrothermal alteration. Geochemical investigations have provided clues on the origin of the geothermal fluids, their recharge paths and on the reservoir processes accompanying the exploitation of the field. Well tests have yielded information on the permeability of the reservoir. (MHR)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 1980},
month = {Tue Jul 01 00:00:00 EDT 1980}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • The results of an initial study of possible reinjection patterns for the Cerro Prieto geothermal field, Baja California, Mexico, are discussed. First, the numeric model and assumptions made are described, then the various cases studied are presented. The resulting data indicate what may be expected from different reinjection schemes and may provide useful guidelines for future reinjection operations at Cerro Prieto and other liquid- dominated geothermal fields.
  • A geologic model of the liquid-dominated Cerro Prieto geothermal field was developed on the basis of geophysical and lithologic well logs. The direction of subsurface geothermal fluid flow before exploitation, and the geologic features controlling this movement were determined by integrating well completion and downhole temperature data with the geologic model. The data show that fluid (possibly heated by intrusive dikes found in wells drilled in the eastern area of the field) enters the system from the east depths > 10,000 ft (>3,050 m). The fluid moves westward through sandstone beds and rises to shallow depths through fault zones andmore » permeable sandy gaps in the overlying shale layers. The shale layers provide local cap rocks. Some of the hot fluid reaches the surface west of the field, in an area characterized by numerous geothermal manifestations. The rest of the fluid mixes with colder ground waters west of the geothermal resource. 15 figures, 1 table.« less
  • These proceedings include both English and Spanish versions of each paper presented at the symposium. Illustrations and tables, which have been placed between the two versions, include captions in both languages. Forty-one papers are included. Five papers were indexed for EDB previously. Separate abstracts were prepared for thirty-three papers and three were listed by title.
  • A three dimensional, multiphase, numerical simulation model of the Cerro Prieto field was developed and used to verify that the present installed capacity (620 MW) can be sustained for 30 years and to evaluate the impact of an 80 MW addition to the installed capacity in the NE-E of the field on the present production areas. Cerro Prieto is the largest known water-dominated geothermal reservoir in the world, with more than 175 wells drilled to date and 17 years of production history. Wells here produce fluids of varying enthalpy, from moderate-temperature water to dry steam. The varying enthalpy and amore » complex interaction between the reservoir and the surrounding aquifer posed a real simulation challenge. The simulation approach used to reproduce the major features of the initial-state and the production history of the field is discussed in this paper. From this study it was concluded that the field is capable of sustaining its present 620 MW total installed capacity for 30 years and the addition of the proposed 80 MW should have a negligible effect on the present production area.« less