Drill bit having rotational cutting elements and method of...

Details Drill bit having rotational cutting elements and method of... Drill bit having rotational cutting elements and method of...

2009-03-17

2011-12-20

Wright, Giovanna (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S412000, C175S413000, C175S431000

Reexamination Certificate

active

08079431

ABSTRACT:
A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

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Vibration-Induced Rotation, by Patrick Andreas Petri, Massachussetts Institute of Technology, May 2001.

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