Apparatus for enhanced recovery of viscous oil deposits

Details Apparatus for enhanced recovery of viscous oil deposits Apparatus for enhanced recovery of viscous oil deposits

1998-04-21

2000-05-02

Dang, Hoang

Wells

With heating, refrigerating or heat insulating means

166222, 1662421, E21B 4324

Patent

active

060560509

ABSTRACT:
Methods and apparatus for enhanced and improved viscous oil recovery are disclosed. A horizontal well is drilled through the viscous oil formation. A specially designed steam stinger is used to inject steam substantially uniformly into the entire horizontal extent of the well borehole without direct steam impingement on the production liner in the viscous oil formation. Heat from the steam mobilizes and lowers the viscosity of the heavy crude wherein the crude is then produced to the surface via conventional lift arrangements.

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