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US 10,119,338 B2Granted
Controlled blade flex for fixed cutter drill bits
AssigneeHalliburton Energy Services, Inc.
InventorsJeffrey Gerald Thomas, Clayton Arthur Ownby
Life of this patent
Estimating the term…
Abstract
A drill bit includes a drill bit body and a flexible blade positioned on the drill bit body. The drill bit further may include a cutting element coupled to and extending a distance beyond a face of the flexible blade. The cutting element may have a back rake angle and a side rake angle. At least one of the distance, back rake angle, and side rake angle may depend on a flexed position of the flexible blade.
Claims20
A drill bit for subterranean drilling operations, comprising:
- a drill bit body;
- a flexible blade positioned on the drill bit body;
- and
- a cutting element coupled to and extending a distance beyond a face of the flexible blade, and comprising a back rake angle and a side rake angle, at least one of the distance, back rake angle, and side rake angle configured to be controllable while the drill bit is positioned within a borehole and depending on a flexed position of the flexible blade.
1 more element
A method for drilling operations in a subterranean formation, comprising:
- coupling a drill bit to a drilling assembly, the drill bit comprising a flexible blade and a cutting element coupled to and extending a distance beyond a face of the flexible blade, the cutting element comprising a back rake angle and a side rake angle;
- placing the drill bit in a borehole within the subterranean formation;
- and
- controlling at least one of the distance, back rake angle, and side rake angle while the drill bit is positioned within the borehole.
1 more element
Dependencies are inferred from the claim text.