Hydrocarbon recovery method

Details Hydrocarbon recovery method Hydrocarbon recovery method

E - Fixed Constructions

21

B

E21B 43/24 (2006.01) E21B 43/30 (2006.01)

Patent

CA 2710078

A process for increasing the efficiency of hydrocarbon recovery from an underground formation containing viscous hydrocarbons through the use of both gravity drainage and mobile water drive. The process comprises a pair of vertically-spaced horizontal wells and a laterally offset horizontal well. A heated fluid is injected into the formation via a first well pair, and an adjacent horizontal well creates a pressure sink to draw the heated fluid laterally to assist growth of the formation drainage area for hydrocarbon recovery improvement. Injected fluids recovered from both producers are collected for recycling.

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