Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2005-01-18
2011-11-01
Kugel, T. J. (Department: 1765)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C166S301000, C166S244100, C507S100000, C507S103000, C516S009000, C516S020000, C516S021000, C516S028000, C516S030000
Reexamination Certificate
active
08048828
ABSTRACT:
Fluids and associated methods useful in subterranean applications are provided. More particularly, methods of reducing drill string sticking are provided, which include: providing a spotting fluid composition comprising a water insoluble external phase fluid, a water soluble internal phase fluid, and an ether carboxylic acid emulsifying agent; introducing the spotting fluid to the vicinity of a desired portion of a drill string; and allowing the spotting fluid to interact with a portion of material surrounding the desired portion of the drill string spotting fluid. Compositions are provided that may be useful in subterranean applications for addressing, among other things, drill string sticking problems. Additional optional components may be used, such as viscosifiers, weighting agents, and wetting agents.
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Baker & Botts LLP
Halliburton Energy Service,s Inc.
Kugel T. J.
Roddy Craig W.
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