Evaluation of bottomhole treatment pressure for geothermal well hydraulic fracture stimulation
The geothermal reservoir well stimulation program (GRWSP) group performed a large hydraulic fracture treatment in the well Baca 20, located in the Union Geothermal Co. of New Mexico Redondo Creek project area in north-central New Mexico. This is the highest temperature well in the world to be successfully fractured with proppant to date. The treatment involved use of a large cooling water prepad followed by a highviscosity fracturing fluid carrying sintered bauxite as the proppant. A nonproductive 240-ft (73-m) openhole interval, with a formation temperature of 520/sup 0/F (271/sup 0/C), was selected and isolated for the job. Poststimulation tests and analyses indicate a fracture was successfully created with a large vertical height near the wellbore. A number of fracture evaluation techniques were used to analyze the job, including some that are unique. Among these techniques were fracture mapping by monitoring the microseismic events caused by the fracture job, downhole treating pressure data analysis, temperature profiles, electric log surveys, production tests, and chemical tracer monitoring. The poststimulation fluid productivity of the treated interval was subcommercial, probably because of low formation permeability surrounding the artificially created fracture.
- Research Organization:
- Republic Geothermal Inc.
- OSTI ID:
- 5281021
- Journal Information:
- J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 36:5; ISSN JPTJA
- Country of Publication:
- United States
- Language:
- English
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Evaluation of bottomhole treatment for geothermal well hydraulic fracture stimulation
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Related Subjects
150906* -- Geothermal Engineering-- Reservoir Stimulation & Extraction Technology
ACOUSTIC MONITORING
ALUMINIUM ORES
BAUXITE
COMMINUTION
DATA ANALYSIS
ELECTRIC LOGGING
FAILURES
FEDERAL REGION VI
FLUIDS
FRACTURES
FRACTURING
FRACTURING FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL WELLS
HIGH TEMPERATURE
HYDRAULIC FRACTURES
HYDRAULIC FRACTURING
HYDROGEN COMPOUNDS
ISOTOPE APPLICATIONS
MAPPING
MONITORING
NEW MEXICO
NORTH AMERICA
ORES
OXYGEN COMPOUNDS
PERMEABILITY
PRODUCTION LOGGING
PROPPING AGENTS
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
STIMULATION
TEMPERATURE LOGGING
TRACER TECHNIQUES
USA
VISCOSITY
WATER
WELL LOGGING
WELL PRESSURE
WELL STIMULATION
WELLS