Drill bit having rotational cutting elements and method of drilling
First Claim
1. A cutter assembly comprising:
- a body;
a cutting element coupled with the body, the cutting element comprising a superabrasive table bonded to a substrate;
a resilient member including a body portion, a first iron and a second prong, the resilient member being engaged with the cutting element and having a natural frequency between approximately 200 hertz and approximately 1,000 hertz, wherein the first and second prongs engage a peripheral side surface of the cutting element, and wherein the resilient member is located and configured to effect rotation of the cutting element relative to the body.
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Accused Products
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.
83 Citations
15 Claims
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1. A cutter assembly comprising:
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a body; a cutting element coupled with the body, the cutting element comprising a superabrasive table bonded to a substrate; a resilient member including a body portion, a first iron and a second prong, the resilient member being engaged with the cutting element and having a natural frequency between approximately 200 hertz and approximately 1,000 hertz, wherein the first and second prongs engage a peripheral side surface of the cutting element, and wherein the resilient member is located and configured to effect rotation of the cutting element relative to the body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A cutter assembly comprising:
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a body; a cutting element coupled with the body, the cutting element comprising a superabrasive table bonded to a substrate; a vibrational member engaged with the cutting element; and an actuator configured to excite the vibrational member, wherein the vibrational member is configured to facilitate rotation of the cutting element relative to the body responsive to being excited by the vibrational member. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification