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Title: Temporary Bridging Agents for use in Drilling and Completion of Enhanced Geothermal Systems

CSI Technologies, in conjunction with Alta Rock Energy and the University of Utah have undergone a study investigating materials and mechanisms with potential for use in Enhanced Geothermal Systems wells as temporary diverters or lost circulation materials. Studies were also conducted with regards to particle size distribution and sealing effectiveness using a lab-scale slot testing apparatus to simulate fractures. From the slot testing a numerical correlation was developed to determine the optimal PSD for a given fracture size. Field trials conducted using materials from this study were also successful.
Authors:
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Publication Date:
OSTI Identifier:
1036100
Report Number(s):
DOE/DE/EE0002795
TRN: US201206%%359
DOE Contract Number:
EE0002795
Resource Type:
Technical Report
Research Org:
CSI Technologies
Sponsoring Org:
USDOE; USDOE EE Office of Geothermal Technologies (EE-2C)
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; DISTRIBUTION; DRILLING; DRILLING FLUIDS; FRACTURES; GEOTHERMAL SYSTEMS; LOSSES; PARTICLE SIZE; TESTING enhanced geothermal systems; diversion; temporary diverters