Foamed well cement slurries, additives and methods

Details Foamed well cement slurries, additives and methods Foamed well cement slurries, additives and methods

1999-04-19

2000-05-16

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Well treating

Contains inorganic component other than water or clay

507202, 507245, 507254, 507261, 166293, 106790, 106678, 106603, 516 14, 516 77, 516912, C09K 300, E21B 3313, C04B 500

Patent

active

060637382

ABSTRACT:
The present invention provides improved foamed well cement slurries, additives and methods. The additives, which foam and stabilize a cement slurry containing fresh water or salt water, are basically comprised of a mixture of an ethoxylated alcohol ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant and an alkyl or alkene amidopropyl dimethyl amine oxide surfactant.

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