Method for enhanced recovery of viscous oil deposits

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

1996-04-25

1998-10-27

Dang, Hoang C.

Wells

Processes

Distinct, separate injection and producing wells

166 50, 1662727, 166303, E21B 4324

Patent

active

058266550

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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