Method for the recovery of oil

Details Method for the recovery of oil Method for the recovery of oil

1978-05-19

1980-03-04

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166303, E21B 4324

Patent

active

041912527

ABSTRACT:
Recovery of heavy oil involves injecting a solvent eg. toluene for the oil in admixture with either (i) a steam distillable surfactant eg.butylamine or (ii) a short lived surfactant eg. a petroleum sulphonate and then injecting steam.

REFERENCES:
patent: 3204694 (1965-09-01), Johnson, Jr. et al.
patent: 3357487 (1967-12-01), Gilchrist et al.
patent: 3454095 (1969-07-01), Messenger et al.
patent: 3474864 (1969-10-01), Hurd
patent: 3490531 (1970-01-01), Dixon
patent: 3515214 (1970-06-01), Finch
patent: 3700031 (1972-10-01), Germer, Jr. et al.
patent: 3706341 (1972-12-01), Redford
patent: 3732926 (1973-05-01), Brown et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 3854531 (1974-12-01), Carlin
patent: 4119149 (1978-10-01), Wu

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