Fluid flow control in waterflood

Details Fluid flow control in waterflood Fluid flow control in waterflood

1975-05-19

1976-05-18

Novosad, Stephen J.

Wells

Processes

Specific pattern of plural wells

166269, 166273, E21B 4322

Patent

active

039571165

ABSTRACT:
In displacement processes for recovery of liquid hydrocarbons from a hydrocarbon bearing formation having zones of different permeability wherein such displacement processes comprise injecting a drive fluid through an injection well vertically traversing the formation and recovering by means of a production well the liquid hydrocarbons which are displaced by the injection of the drive fluid; this invention involves an improvement comprising injecting a water insoluble liquid into the permeable zone to increase drive efficiency in the less permeable zone.

REFERENCES:
patent: 2272673 (1942-02-01), Kennedy
patent: 2988142 (1961-06-01), Maly
patent: 3208517 (1965-09-01), Binder, Jr. et al.
patent: 3253652 (1966-05-01), Connally, Jr. et al.
patent: 3294164 (1966-12-01), Hardy et al.
patent: 3517744 (1970-06-01), Horton
patent: 3667545 (1972-06-01), Knight
patent: 3718187 (1973-02-01), Milton, Jr.
patent: 3866680 (1975-02-01), Dauben

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