Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2011-01-04
2011-01-04
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C106S695000, C106S705000, C106S287270, C106S287290, C166S285000, C166S293000, C507S274000
Reexamination Certificate
active
07863224
ABSTRACT:
A method of servicing a wellbore comprising preparing a composition comprising a calcium aluminate cement, water, a polyphosphate, a pozzolan, and a set retarding agent, wherein the set retarding agent comprises an alkali halide and a basic phosphate salt, placing the composition in the wellbore and allowing the composition to set. A composition comprising a calcium aluminate cement in an amount of from about 30 wt. % to about 60 wt. % and a set retarding agent in an amount of from about 0.1 wt. % to about 15 wt. % based upon the total weight of the composition, wherein the set retarding agent comprises an alkali halide and a basic phosphate salt in a ratio of from about 3:1 to about 1:3.
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Brothers Lance E.
Keys Crystal Lynne
Conley Rose
Halliburton Energy Service,s Inc.
Kugel Timothy J.
Roddy Craig W.
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