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Title: Conducting a 3D Converted Shear Wave Project to Reduce Exploration Risk at Wister, CA

Technical Report ·
DOI:https://doi.org/10.2172/1252205· OSTI ID:1252205

Ormat sited 2 full-size exploration wells based on 3D seismic interpretation of fractures, prior drilling results, and temperature anomaly. The wells indicated commercial temperatures (>300 F), but almost no permeability, despite one of the wells being drilled within 820 ft of an older exploration well with reported indications of permeability. Following completion of the second well in 2012, Ormat undertook a lengthy program to 1) evaluate the lack of observed permeability, 2) estimate the likelihood of finding permeability with additional drilling, and 3) estimate resource size based on an anticipated extent of permeability.

Research Organization:
Ormat Nevada, Inc., Reno, NV (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office
DOE Contract Number:
EE0002838
OSTI ID:
1252205
Report Number(s):
DE-EE0002838
Country of Publication:
United States
Language:
English