Permeability enhancement due to cold water injection: A Case Study at the Los Azufres Geothermal Field, Mexico

Conference · Sat Apr 01 04:00:00 EST 1989

OSTI ID:5532919

Benson, S M; Daggett, J; Ortiz, J; Iglesias, E ^[1]

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1. Lawrence Berkeley Lab., CA (USA)

Pressure transient buildup and falloff data from 3 wells at the Los Azufres geothermal field have been evaluated to determine the extent to which cold water infection increases the permeability of the near-bore reservoir formation. Simultaneous analysis of the buildup and falloff data provides estimates of the permeability-thickness of the reservoir, the skin factor of the well, and the degree of permeability enhancement in the region behind the thermal front. Estimates of permeability enhancement range from a factor of 4 to 9, for a temperature change of about 150{degree}C. The permeability enhancement is attributed to thermally induced contraction and stress-cracking of the formation. 9 refs., 18 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• Sponsoring Organization: DOE/CE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5532919
• Report Number(s): LBL-27350; CONF-8904129--1; ON: DE90000173
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150900* -- Geothermal Engineering
DEVELOPING COUNTRIES
ENERGY
ENERGY SOURCES
ENGINEERING
FLUID INJECTION PROCESSES
FLUID MECHANICS
GEOTHERMAL ENERGY
GEOTHERMAL WELLS
Geothermal Legacy
HYDRODYNAMICS
LATIN AMERICA
MECHANICS
MEXICO
NORTH AMERICA
PERMEABILITY
RENEWABLE ENERGY SOURCES
RESERVOIR ENGINEERING
WELLS