Heavy oil recovery process using intermittent steamflooding

Details Heavy oil recovery process using intermittent steamflooding Heavy oil recovery process using intermittent steamflooding

1986-01-03

1987-01-13

Suchfield, George A.

Wells

Processes

Specific pattern of plural wells

166263, 166271, 166272, E21B 4330, E21B 4324

Patent

active

046357203

ABSTRACT:
This invention is a method for recovering viscous hydrocarbonaceous fluids from a subterranean formation containing one or more vertically extensive, narrow, high permeability conduits. At least one injection well communicates with at least one production well via said conduits. Steam is injected into said injection well until the water-oil ratio becomes excessive at the production well. The production well is then shut in until the formation is pressurized. Stem injection is then stopped and the production well is opened for production by pressure depletion. This cycle is repeated until oil recovery becomes uneconomical.

REFERENCES:
patent: 2876838 (1959-03-01), Williams
patent: 3771598 (1973-11-01), McBean
patent: 3927716 (1975-12-01), Burdyn et al.
patent: 4133382 (1979-01-01), Cram et al.
patent: 4271905 (1981-06-01), Redford et al.
patent: 4324291 (1982-04-01), Wong et al.
patent: 4427066 (1984-01-01), Cook
patent: 4450911 (1984-05-01), Shu et al.
patent: 4458758 (1984-07-01), Hunt, III et al.

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