E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/38, 309/6
E21B 43/25 (2006.01) E21B 7/04 (2006.01) E21B 43/24 (2006.01)
Patent
CA 1093131
Abstract of the Disclosure An improved electrode for electrically heating a subterranean formation includes a plurality of electrically conductive rod-like members that extend outwardly from a cen- tral well bore to provide increased area for conducting elec- trical 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 for- mation 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.
288030
Atlantic Richfield Company
Osler Hoskin & Harcourt Llp
LandOfFree
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