Enhanced oil recovery process utilizing in situ steam...

Details Enhanced oil recovery process utilizing in situ steam... Enhanced oil recovery process utilizing in situ steam...

E - Fixed Constructions

21

B

166/36

E21B 43/243 (2006.01)

Patent

CA 1271412

ABSTRACT OF THE INVENTION A process for recovering hydrocarbons from a porous hydrocarbon-bearing formation comprising: (a) injecting water and oxygen into the formation through an injection means and causing at least a portion of the oxygen to combust with a portion of the hydrocarbons in the formation, provided that the oxygen in the formation effectively remains a distance away from the production means, e.g., production well or wells; (b) injecting water, oxygen and hydrocarbons into the formation and causing at least a portion of the oxygen to combust with at least a portion of the injected hydrocarbons; and (c) recovering hydrocarbons from the formation through the production means.

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