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

Watters, Larry ; Watters, Jeff ; Sutton, Joy ; Combs, Kyle ; Bour, Daniel ; Petty, Susan ; Rose, Peter ; Mella, Michael

关键词: DISTRIBUTION;    DRILLING;    DRILLING FLUIDS;    FRACTURES;    GEOTHERMAL SYSTEMS;    LOSSES;    PARTICLE SIZE;    TESTING enhanced geothermal systems;    diversion;    temporary diverters;   

DOI  :  10.2172/1036100
RP-ID  :  DOE/DE/EE0002795
PID  :  OSTI ID: 1036100
Others  :  TRN: US201206%%359

学科分类：再生能源与代替技术

美国|英语

来源: SciTech Connect

【 摘 要 】

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.