Method of recovering viscous petroleum from tar sand

Details Method of recovering viscous petroleum from tar sand Method of recovering viscous petroleum from tar sand

E - Fixed Constructions

21

B

166/33

E21B 43/24 (2006.01) E21B 43/16 (2006.01) E21B 43/30 (2006.01)

Patent

CA 1122519

METHOD OF RECOVERING VISCOUS PETROLEUM FROM TAR SAND Abstract of the Disclosure A method of recovering viscous petroleum from tar sand formations utilizing a deviated steam injection well with pumpdown (through the flow line) completion. The steam injection well may use side pocket mandrels with constant flow or orifice regulators to control steam injection rates into the surrounding viscous petroleum formation. A plur- ality of pumping wells are situated along the drill path of the steam injection well and substantially above injection points for recovery of the fluidized petroleum.

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