Rotating systems associated with drill pipe

Details Rotating systems associated with drill pipe Rotating systems associated with drill pipe

2007-04-17

2007-04-17

Neuder, William P (Department: 3672)

Boring or penetrating the earth

Processes

C175S104000

Reexamination Certificate

active

11071823

ABSTRACT:
Methods and apparatuses for drilling a borehole are disclosed. An electric motor electrically and mechanically coupled to a wired drill pipe is provided. The electric motor couples to a shaft that rotates when power is supplied to the electric motor. The shaft is couplable to a drill bit. The wired drill pipe transfers electricity to the electric motor from the surface. Operation of the electric motor rotates the shaft. The drill bit wears away earth to form the borehole in the earth.

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International Search Report and Written Opinion of the International Searching Authority for PCT/US05/07062 filed Oct. 3, 2006.

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