E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/243 (2006.01)
Patent
CA 2492306
The invention provides processes for in situ combustion as a secondary recovery technique for recovery of oil by a combination of gravity drainage, hot gas drive and enhanced steam drive, particularly suited to oil sands or heavy oil reservoirs that have undergone a prior steam-based gravity-controlled process.
Chhina Harbir S.
Encana
Smart & Biggar
LandOfFree
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