Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2006-11-17
2010-12-28
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S203000, C507S208000, C166S305100
Reexamination Certificate
active
07858564
ABSTRACT:
A well drilling, completion or workover fluid has a continuous phase of the fluid essentially consists of a liquid fluorinated compound. In a variant, the liquid fluorinated compound is a perfluorinated compound.
REFERENCES:
patent: 2898294 (1959-08-01), Priest et al.
patent: 4900456 (1990-02-01), Ogilvy
patent: 4990283 (1991-02-01), Visca et al.
Audibert Annie
Driancourt Alain
Pasquier David
Antonelli, Terry Stout & Kraus, LLP.
Institut Francais du Pe'trole
Kugel Timothy J.
Li Alqun
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