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U.S. Department of Energy
Office of Scientific and Technical Information

Oil recovery process

Patent ·
OSTI ID:6387581
The recovery of oil from a subterranean hydrocarbon-bearing reservoir by the injection into it of a mixture of carbon dioxide and sulfur dioxide which is miscible with the reservoir oil at pressure and temperature prevailing in the reservoir is described. For production, a driving fluid is injected to displace the zone and reservoir oil and fluids for recovery. 7 claims.
Assignee:
Petroleum Recovery Inst.
Patent Number(s):
US 4217955
OSTI ID:
6387581
Country of Publication:
United States
Language:
English