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U.S. Department of Energy
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Electrode well for electrically heating a subterranean formation

Patent ·
OSTI ID:6817376
An improved electrode for electrically heating a subterranean formation includes a plurality of electrically conductive rod-like members that extend outwardly from a central well bore to provide increased area for conducting electrical current from a source into said subterranean formation. The improved electrode apparatus is adapted to be lowered into a well bore which has been drilled into the subterranean formation and, thereafter, the plurality of rod-like members are driven outwardly from the central well bore. Guide means are provided to direct the rod-like members outwardly into the subterranean formation as a central member is forced downwardly.
Assignee:
Petro Canada Exploration Inc.
Patent Number(s):
US 4084639
OSTI ID:
6817376
Country of Publication:
United States
Language:
English