05211230 is referenced by 262 patents and cites 16 patents.

A horizontal production well is located in the lower portion of a heavy viscous oil-bearing reservoir. A vertical injection well is located in the upper portion of the reservoir. Oxygen-enriched gas is injected down the injector well and ignited in the upper portion of the reservoir to create a combustion zone that reduces viscosity of oil in the reservoir as the combustion zone advances downwardly toward the horizontal production well, the reduced-viscosity oil draining into the horizontal production well under force of gravity.

Title
Method for enhanced oil recovery through a horizontal production well in a subsurface formation by in-situ combustion
Application Number
7/839412
Publication Number
5211230
Application Date
February 21, 1992
Publication Date
May 18, 1993
Inventor
Farrokh N Pebdani
Calgary
CA
Eugene Ostapovich
Calgary
CA
Agent
George W Hager Jr
Alexander J McKillop
Assignee
Mobil Oil Corporation
VA, US
IPC
E21B 43/243
E21B 47/06
E21B 47/00
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