Method for recovering hydrocarbons from subterranean formations

Details Method for recovering hydrocarbons from subterranean formations Method for recovering hydrocarbons from subterranean formations

E - Fixed Constructions

21

B

E21B 43/24 (2006.01) E21B 10/26 (2006.01) E21B 33/14 (2006.01) E21B 43/243 (2006.01)

Patent

CA 2549782

Recovery of viscous hydrocarbon from subterranean formations is assisted by using a plurality of novel U-tube type wells, each with dual wellheads, a moveable wellbore packer, a lateral section with a concentric communication zone and with sequential injection production perforations in which heat is injected into the proximal perforations and hot oil and produced fluids are produced from the distal perforations, the whole process being controlled by modulating the production flow where the wellbore fluids are controlled to act as a hydraulic seal to limit bypass of injected fluids. The injection- production displacement process moves axially along the wellbore in a sequential manner as hydrocarbon volumes are depleted by injected fluid displacement of oil and oil and water production.

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