Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2006-01-24
2006-01-24
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S139000, C507S140000, C507S145000, C507S136000
Reexamination Certificate
active
06989352
ABSTRACT:
A lubricant for use in silicic acid muds and other drilling fluids comprising silicate or silica species is disclosed. The lubricant significantly improves the lubricity of the fluid. A method of drilling a wellbore in a subterranean formation employing the lubricant is also disclosed. A preferred lubricant of the invention comprises about 80 volume percent 2-octyldodecanol and about 20 volume percent alkylglucoside. The alkylglucoside is preferably comprised of 2-ethylhexylglucoside or a mixture of alkylglucosides having more than about 10 carbon atoms in the alkyl chain.
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Fisk, Jr. James V.
Kerchevile Jim D.
Pober Kenneth W.
Halliburton Energy Service,s Inc.
Roddy Craig W.
Tucker Philip C.
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