CO 2 foamed well treatments

Details CO 2 foamed well treatments CO 2 foamed well treatments

2007-05-01

2010-11-16

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Well treating

Contains intended gaseous phase at entry into wellbore

C507S266000, C507S933000, C507S939000, C516S010000

Reexamination Certificate

active

07833948

ABSTRACT:
A composition and a method for treating a subterranean formation with an injection liquid containing liquid carbon dioxide, a treating liquid and optionally a foaming agent and/or methanol. The treating liquid may be an acid, a corrosion inhibitor, a solvent or a scale inhibitor.

REFERENCES:
patent: 4453596 (1984-06-01), Conway et al.
patent: 4650000 (1987-03-01), Andreasson et al.
patent: 4737296 (1988-04-01), Watkins
patent: 5069283 (1991-12-01), Mack
patent: 6555505 (2003-04-01), King et al.

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