Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2005-06-21
2005-06-21
Wilson, James O. (Department: 1623)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S120000, C536S056000, C536S058000, C536S123100
Reexamination Certificate
active
06908886
ABSTRACT:
An annular fluid or packer fluid, and methods of making the same, that includes a water-miscible solvent, a viscosifying additive, a crosslinking agent, a crosslinking inhibitor having the facility to inhibit crosslinking between the viscosifying additive and the crosslinking agent, and an initiating agent having the facility to overcome an action of the crosslinking inhibitor and to initiate crosslinking between the viscosifying additive and the crosslinking agent, is shown and described. The fluid has a thermal conductivity of no more than about 0.25 btu/(hr·ft·° F.) and a potential to substantially increase its viscosity upon sitting for a selected period of time.
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PCT International Search Report dated Jul. 21, 2004.
PCT Written Opinion of the International Search Authority dated Jul. 21, 2004.
Horton Robert L.
Jones Andrew G. K.
Prasek Bethicia B.
Krishnan Ganapathy
M-I L.L.C.
Osha Liang L.L.P.
Wilson James O.
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