Boring or penetrating the earth – With below-ground tool drive prime mover – Electric
Reexamination Certificate
2005-02-22
2005-02-22
Bagnell, David (Department: 3672)
Boring or penetrating the earth
With below-ground tool drive prime mover
Electric
C175S097000, C175S101000, C166S065100, C166S066400, C405S191000, C114S312000, C114S322000, C114S328000
Reexamination Certificate
active
06857486
ABSTRACT:
The method of providing in excess of 60 kilowatts of electrical power to the electrical motor of a subterranean electric drilling machine through a substantially neutrally buoyant composite umbilical containing electrical conductors to reduce the frictional drag on the neutrally buoyant umbilical. Drilling and casing subterranean monobore wells are contemplated to distances of 20 miles from a wellsite. For drilling applications, the umbilical possesses a drilling fluid conduit. The umbilical also possesses high speed data communications such as a fiber optic cable or a coaxial cable that is used in the feedback control of the downhole electric drilling motor. Such umbilicals are also useful to provide power to remotely operated vehicles for subsea well servicing applications.
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Chitwood James E.
Crossland William G.
Dekle Robert L.
Skerl Damir S.
Vail III William Banning
Bagnell David
Collins Giovanna
Smart Drilling and Completion, Inc.
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