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U.S. Department of Energy
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Method for producing oil by in situ combustion with optimum steam injection

Patent ·
OSTI ID:5556790
In a method for producing oil from a subterranean formation by forward in situ combustion combined with optimum steam injection, a forward in situ combustion front is passed by a flow of air through a formation between input and output wells. Injection of steam with the air is begun when the combustion front is stabilized, and before the front-traversed formation is sufficiently cooled that the injected steam is condensed into a liquid bank of water. About 240 bbl of water converted into steam are used for each 1 Mscf of air concurrently injected into the formation. Steam injection ends when steam is produced with the displaced oil through the output well. (3 claims)
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 3411578
OSTI ID:
5556790
Country of Publication:
United States
Language:
English