Geothermal reservoir well stimulation program. Final program summary report

Technical Report · Sun Jan 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5224424· OSTI ID:5224424

Eight field experiments and the associated theoretical and laboratory work performed to develop the stimulation technology are described. A discussion of the pre-stimulation and post-stimulation data and their evaluation is provided for each experiment. Overall results have shown that stimulation is viable where adequate reservoirs are penetrated by wells encountering formation damage or locally tight formation zones. Seven of the eight stimulation experiments were at least technically successful in stimulating the wells. The two fracture treatments in East Mesa 58-30 more than doubled the producing rate of the previously marginal producer. The two fracture treatments at Raft River and the two at Baca were all successful in obtaining significant production from previously nonproductive intervals. However, these treatments failed to establish commercial production due to deficiencies in either fluid temperature or reservoir transmissivity. The Beowawe chemical stimulation treatment appears to have significantly improved the well's injectivity, but production data were not obtained because of well mechanical problems. The acid etching treatment in the well at the Geysers did not have any material effect on producing rate. Evaluations of the field experiments to date have suggested improvements in treatment design and treatment interval selection which offer substantial encouragement for future stimulation work.

• Research Organization: Republic Geothermal, Inc., Santa Fe Springs, CA (USA)
• DOE Contract Number: AC04-79AL10563
• OSTI ID: 5224424
• Report Number(s): DOE/AL/10563-T18; ON: DE84008264
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150906* -- Geothermal Engineering-- Reservoir Stimulation & Extraction Technology
ACIDIZATION
BACA GEOTHERMAL FIELD
COMMINUTION
EAST MESA GEOTHERMAL FIELD
FEDERAL REGION IX
FEDERAL REGION X
FLUID INJECTION
FRACTURING
GEOTHERMAL FIELDS
GEOTHERMAL WELLS
GEYSERS GEOTHERMAL FIELD
Geothermal Legacy
HYDRAULIC FRACTURING
IDAHO
NEVADA
NORTH AMERICA
RAFT RIVER VALLEY
STIMULATION
USA
WELL STIMULATION
WELLS