E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/35
E21B 43/24 (2006.01) E21B 43/243 (2006.01)
Patent
CA 1054928
THERMAL RECOVERY OF HYDROCARBONS FROM TAR SANDS (D#73,500-RCA-23-F) ABSTRACT OF THE DISCLOSURE A method for the recovery of low API gravity viscous oils or bitumen from a subterranean formation by the injection of steam followed by a mixture of an oxygen- containing gas and steam until an optimum amount of gas has been injected, followed by injection of steam alone. -I-
253643
Cram Phillip J.
Redford David A.
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