Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2007-06-20
2010-11-02
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S219000, C507S903000, C175S065000
Reexamination Certificate
active
07825071
ABSTRACT:
A wellbore fluid that includes an oleaginous continuous phase; a non-oleaginous phase; and a modified polyesteramide surfactant; methods of formulating such wellbore fluid; and methods of drilling a subterranean formation with such wellbore fluid are disclosed.
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Kugel Timothy J.
Li Aiqun
M-I L.L.C.
Osha • Liang LLP
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