Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2007-08-14
2007-08-14
Bates, Zakiya (Department: 3676)
Wells
Processes
Cementing, plugging or consolidating
C166S292000, C166S309000, C106S646000, C106S677000, C507S202000
Reexamination Certificate
active
11132803
ABSTRACT:
Exemplary embodiments relate to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing additive, that comprises a mixture of an alkali salt of an alkyl ether sulfate surfactant, wherein the alkali salt of the alkyl ether sulfate surfactant comprises a mixture of an alkali salt of a C6-10alkyl ether sulfate surfactant, and an alkali salt of a C2-4alkyl ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant, an alkyl or alkene amidopropyl dimethylamine oxide surfactant, sodium chloride, and water, is provided. Also provided are foamed cement compositions that comprise the foaming and stabilizing additive, and associated methods.
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Brenneis D. Chad
Chatterji Jiten
Cromwell Roger S.
Gray Dennis W.
King Bobby J.
Bates Zakiya
DiTrani Angela
Fletcher Yoder
Halliburton Energy Service,s Inc.
Roddy Craig W.
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