Foaming agents for carbon dioxide and steam floods

Details Foaming agents for carbon dioxide and steam floods Foaming agents for carbon dioxide and steam floods

1990-06-18

1991-07-02

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166268, 166273, 166274, 166294, 166303, 1663051, E21B 4322, E21B 4324

Patent

active

050278983

ABSTRACT:
The invention is a foam method for improving conformance during a steam flood or carbon dioxide flood in an underground hydrocarbon formation penetrated by at least one injection well and at least one production well, which comprises injecting into an injection well about 0.05% to about 2% by weight aqueous surfactant solution, and then injecting into the injection well a flooding medium of steam or carbon dioxide, said surfactant solution comprising a surfactant having the formula

REFERENCES:
patent: 4540050 (1985-09-01), Huang et al.
patent: 4703797 (1987-11-01), Djabbarah
patent: 4706750 (1987-11-01), Buckles
patent: 4706752 (1987-11-01), Holm
patent: 4787454 (1988-11-01), Naae et al.
patent: 4821803 (1989-04-01), Debons
patent: 4828032 (1989-05-01), Teletzke et al.
patent: 4856589 (1989-08-01), Kuhlman et al.

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