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

Thermal recovery of hydrocarbon from tar sands

Patent ·
OSTI ID:6616520
The present invention relates to a method for the recovery of oil from subterranean hydrocarbon-bearing formations containing low API gravity viscous oils or bitumens. More particularly, the invention relates to the production of bitumens and hydrocarbons from reservoirs of low mobility, such as tar sand formations. This can be achieved by the injection of a mixture of an oxygen-containing gas and steam at a temperature corresponding to the temperature of saturated steam at the pressure of the formation. (8 claims)
Assignee:
Texaco Explor Canada Ltd
Patent Number(s):
US 4006778
OSTI ID:
6616520
Country of Publication:
United States
Language:
English