Thermal oil recovery with solvent recirculation

Details Thermal oil recovery with solvent recirculation Thermal oil recovery with solvent recirculation

1982-01-07

1983-12-06

Novosad, Stephen J.

Wells

Processes

Separating material entering well

166266, 166272, 166303, E21B 4324, E21B 4340

Patent

active

044187521

ABSTRACT:
A process for the production of heavy oil from a subterranean oil reservoir by the injection of a hot aqueous fluid into the reservoir and the injection of a diluent solvent down the production well to produce a blend of solvent and oil having a decreased viscosity. The reservoir oil has a density greater than the density of water. The diluent solvent has a density such that the density of the resulting blend recovered from the production well also has a density greater than the density of the water. The water produced from the production well is separated from the blend and the blend then fractionated to recover a solvent fraction of the requisite density. This solvent fraction is then returned to the production well to produce additional blend within the well in a continuation of the process.

REFERENCES:
patent: 2412765 (1946-12-01), Buddrus et al.
patent: 2725106 (1955-11-01), Spearow
patent: 3116231 (1963-12-01), Adee
patent: 3258501 (1970-09-01), Parker
patent: 4033412 (1977-07-01), Barrett
patent: 4133384 (1979-01-01), Allen et al.
patent: 4160479 (1979-07-01), Richardson et al.
patent: 4160814 (1979-07-01), Hardin et al.
patent: 4251323 (1981-02-01), Smith
patent: 4265310 (1981-05-01), Britton et al.
patent: 4362213 (1982-12-01), Tabor

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