E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/24 (2006.01) E21B 43/243 (2006.01)
Patent
CA 2678348
The invention provides for in situ processing a hydrocarbon reservoir which comprises selecting in the reservoir a matured steam chamber and an operating steam chamber generally adjacent to and in fluid communication with the matured steam chamber. The matured steam chamber further being a warm and depleted former SAGD chamber, and the operating chamber undergoing or being capable of undergoing SAGD processing. An oxygen comprising gas is injected into the matured chamber or generally at a boundary or within a buffer zone between the matured and operating chambers for maintaining pressure within the matured chamber so as to reduce or avoid fluid leaking or cross-flow from the operating chamber into the mature chamber while producing gas, oil and water within the matured chamber, continually performing SAGD in the operating chamber, or a combination thereof.
Coulter Calvin R.
Cuthiell David Layton
Li Jian
Coulter Calvin R.
Cuthiell David Layton
Li Jian
Smart & Biggar
Suncor Energy Inc.
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