Wells – Processes – In situ combustion
Patent
1979-01-11
1981-06-23
Novosad, Stephen J.
Wells
Processes
In situ combustion
166251, 166252, 166272, 166269, E21B 4324, E21B 43243
Patent
active
042744873
ABSTRACT:
A well which is to produce from a heavy oil or tar sands reservoir is thermally stimulated from another well located on the order of 10 to 50 feet away. This adjacent thermal stimulation well can be considered expendable. This thermal stimulation is continued for a number of days, until the hot zone produced extends beyond the location of the production well. Thereafter, the adjacent thermal stimulation well preferably is closed off during the course of the frontal thermal drive or the like from remote injection wells. However, such stimulation may be repeated later of if the oil or tar becomes too viscous in the pay zone near the production well.
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Hollingsworth Frank H.
Jenkins George R.
Kirkpatrick John W.
Mower Lawrence N.
Hook Fred E.
Novosad Stephen J.
Standard Oil Company (Indiana)
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