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U.S. Department of Energy
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Recovery of oil by a vertical miscible flood

Patent ·
OSTI ID:5144375

A vertical miscible recovery process for the recovery of oil from an oil-bearing reservoir is described wherein a miscible slug is established in situ. The slug is injected at the crest of the oil column or at the gas-oil interface by the separate and simultaneous injection of a stream of the light constituents and a stream of the heavy constituents comprising the miscible slug. This is followed by the injection of a driving fluid to displace the slug and the reservoir oil downward through the reservoir. (14 claims)

Assignee:
Texaco Inc
Patent Number(s):
US 3845821
OSTI ID:
5144375
Country of Publication:
United States
Language:
English