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Secondary recovery using carbon dioxide and an inert gas

Patent ·
OSTI ID:6555812
Recovery of oil from an oil-bearing reservoir is effected by the injection of a mixture of carbon dioxide and an inert gas in a critical ratio whereby there is formed a miscible transition zone between the mixture and the reservoir oil. (9 claims)
Assignee:
Texaco Inc.
Patent Number(s):
US 3811501
OSTI ID:
6555812
Country of Publication:
United States
Language:
English