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US 7,407,020 B2Granted
Rotating systems associated with drill pipe
AssigneeHalliburton Energy Services, Inc.
InventorsDaniel D. Gleitman, Paul F. Rodney, James H. Dudley
Life of this patent
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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.
Claims5
A method of drilling a borehole with a drill string, comprising:
- rotating a flywheel coupled to the drill string using a motor;
- driving a vibration sub coupled to the drill string with the flywheel to create a dynamic state in the local drill string;
- and,
- engaging the flywheel with the vibration sub via a clutch.
1 more element
Dependencies are inferred from the claim text.