Steam, noncondensable gas and foam for steam and distillation dr

Details Steam, noncondensable gas and foam for steam and distillation dr Steam, noncondensable gas and foam for steam and distillation dr

1983-03-18

1984-12-18

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

166266, 166272, E21B 4324, E21B 4706

Patent

active

044885989

ABSTRACT:
A method is disclosed for increased recovery of crude petroleum from a subsurface formation containing petroleum deposits. The method combines steam and gas distillation drive using foam to divert the steam/gas and to establish a thermal barrier against heat loss into the surrounding formations. A noncondensable gas is injected with or after steam to produce a distillate bank which is moved through the formation from an injection well toward a production well. Fluids produced at the production well are monitored to provide information for control of the injected materials at the injection well.

REFERENCES:
patent: 3412794 (1968-11-01), Craighead
patent: 4086964 (1978-05-01), Dilgren et al.
patent: 4099568 (1978-07-01), Allen
patent: 4161217 (1979-07-01), Dilgren et al.
patent: 4324291 (1982-04-01), Wong et al.
patent: 4393937 (1983-07-01), Dilgren et al.

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