Downhole earth-boring rotary drill bits comprising center cutting modules and related methods
AssigneeBaker Hughes Oilfield Operations LLC
InventorVolker Peters
Life of this patent
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Abstract
A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.
Claims20
A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit, comprising:
- an elongated body;
- a module crown secured to a first end of the elongated body;
- at least one cutting element secured to the module crown;
- and
- a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown.
A downhole earth-boring rotary drill bit, comprising:
- a bit body configured for rotation about a first rotational axis;
- and
- a center cutting module secured within the bit body and rotatable within the bit body about a second rotational axis oriented at an angle relative to the first rotational axis, the center cutting module comprising:
- an elongated body;
- a module crown secured to a first end of the elongated body;
- at least one cutting element secured to the module crown;
- and
- a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown.
A method of drilling a wellbore within a subterranean formation, comprising:
- disposing an earth-boring rotary drill bit in the wellbore within the subterranean formation, the drill bit comprising:
- a bit body configured for rotation about a first rotational axis;
- and
- a center cutting module secured within the bit body and rotatable within the bit body about a second rotational axis oriented at an angle relative to the first rotational axis, the center cutting module comprising:
- an elongated body;
- a module crown secured to a first end of the elongated body;
- at least one cutting element secured to the module crown;
- and
- a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown;
- engaging the drive with the elongated body;
- and
- rotating the drill bit in the wellbore about the first rotational axis and simultaneously rotating the center cutting module about the second rotational axis.
Dependencies are inferred from the claim text.