Foamed cement slurries, additives and methods

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

2006-03-07

2006-03-07

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S677000, C106S724000, C106S725000, C106S802000, C106S808000, C106S809000

Reexamination Certificate

active

07008477

ABSTRACT:
The present invention relates to foamed cement slurries, additives and methods. A foamed cement slurry of the invention comprises a hydraulic cement, sufficient water to form a slurry, sufficient gas to form a foam and an environmentally benign foaming and stabilizing additive comprising a mixture of an ammonium salt of an alkyl ether sulfate surfactant, a cocoamidopropyl hydroxysultaine surfactant, a cocoamidopropyl dimethylamine oxide surfactant, sodium chloride and water.

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