04598772 is referenced by 209 patents and cites 7 patents.

A method for operating a production well during an oxygen driven in-situ combustion oil recovery process comprising continuously injecting an inert gas such as nitrogen or carbon dioxide into the bottom of the production well at a predetermined low injection rate, preferably 0.1 to 2 MSCF/day, and continuously monitoring the oxygen concentration of the produced effluent gas and the bottomhole temperature of the production well. In the event that the oxygen content of the effluent gas increases to a value within the range of 5 to 20 volume percent or the bottomhole temperature of the production well increases to a value within the range of 200.degree. to 300.degree. F., the injection rate of the inert gas into the bottom of the production well is increased to a maximum rate until the oxygen concentration of the effluent gas and the bottomhole temperature are reduced to a safe level.

Title
Method for operating a production well in an oxygen driven in-situ combustion oil recovery process
Application Number
6/566373
Publication Number
4598772
Application Date
December 28, 1983
Publication Date
July 8, 1986
Inventor
Billy G Holmes
Lancaster
TX, US
Agent
Charles J Speciale
Michael G Gilman
Alexander J McKillop
Assignee
Mobil Oil Corporation
NY, US
IPC
E21B 47/06
E21B 43/243
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