Evaluation of bottomhole treatment for geothermal well hydraulic fracture stimulation
The Geothermal Reservoir Well Stimulation Program group performed a large hydraulic fracture treatment in the well Baca 20, located in Union's Redondo Creek Project Area in north-central New Mexico. This is the highest temperature well in the world to be successfully prop-fractured to date. The treatment utilized a large cooling water pre-pad followed by a high viscosity frac fluid carrying sintered bauxite as the proppant. A nonproductive 240-foot openhole interval, with a formation temperature of 520/sup 0/F, was selected and isolated for the job. Post-stimulation tests and analyses indicate a dynamic fracture was created with a large vertical height near the wellbore. A number of fracture evaluation techniques were used to analyze the job, inincluding some that are quite 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 post-stimulation fluid productivity of the well is subcommercial, probably because of low formation permeability surrounding the artificially created fracture.
- Research Organization:
- Republic Geothermal Inc.
- OSTI ID:
- 5389189
- Report Number(s):
- CONF-820927-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE11157; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
150904* -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
COMMINUTION
COOLING SYSTEMS
ENERGY SYSTEMS
EVALUATION
FEDERAL REGION VI
FLUIDS
FRACTURE MECHANICS
FRACTURING
FRACTURING FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL WELLS
HYDRAULIC FRACTURING
ISOTOPE APPLICATIONS
MECHANICS
NEW MEXICO
NORTH AMERICA
PERMEABILITY
PRESSURE MEASUREMENT
RESERVOIR ROCK
RESERVOIR TEMPERATURE
SEISMIC EVENTS
STIMULATION
TEMPERATURE GRADIENTS
TRACER TECHNIQUES
USA
WELL LOGGING
WELL STIMULATION
WELL TEMPERATURE
WELLS