Cutting elements for drill bits for drilling subterranean formations and methods of forming such cutting elements
AssigneeBaker Hughes Incorporated
InventorsChaitanya K. Vempati, Suresh G. Patel, Jack T. Oldham, Danielle M. Fuselier, Jim R. Powers, Nicholas J. Lyons
Life of this patent
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Abstract
A cutting element for use in a drill bit for drilling subterranean formations includes a cutting body having a substrate, and a superabrasive layer overlying an upper surface of the substrate. The cutting element further includes a sleeve including another superabrasive layer and surrounding the peripheral side surface of the cutting body.
Claims20
A cutting element for use in a drill bit for drilling subterranean formations, comprising:
- a cutting body comprising:
- a substantially cylindrical substrate comprising an upper surface;
- and
- a first superabrasive layer overlying the upper surface of the substrate;
- and
- a sleeve comprising a second superabrasive layer surrounding the first superabrasive layer,
- wherein the sleeve is mechanically connected to the cutting body by a connection selected from the group consisting of an interlocking fit connection, an interference fit connection, a grooved connection, a threaded connection, a taper lock connection, and combinations thereof, the connection configured to inhibit rotational movement of the cutting body relative to the sleeve.
A method of forming a cutting element for use in a drill bit for drilling subterranean formations, comprising:
- disposing a cutting body within a sleeve,
- wherein the cutting body comprises:
- a substantially cylindrical substrate;
- a first superabrasive layer over a surface of the substrate;
- and
- a peripheral side surface comprising a peripheral side surface of the substrate and a peripheral side surface of the first superabrasive layer;
- wherein the sleeve comprises:
- a sleeve body;
- and
- a second superabrasive layer bonded to a surface of the sleeve body;
- and
- providing at least one of a gap and an interface material directly radially between the first superabrasive layer and the second superabrasive layer;
- wherein an upper surface of the first superabrasive layer is coplanar with or recessed below an upper surface of the second superabrasive layer.
A cutting element for use in a drill bit for drilling subterranean formations, comprising:
- a cutting body, comprising:
- a substrate;
- a first superabrasive layer overlying a surface of the substrate;
- a second superabrasive layer overlying the surface of the substrate;
- and
- an arresting layer disposed between an interior side surface of the first superabrasive layer and a peripheral side surface of the second superabrasive layer, the arresting layer configured to mitigate the transfer of mechanical strain between the first superabrasive layer and the second superabrasive layer;
- wherein the cutting body comprises at least one peripheral side surface comprising a peripheral side surface of the substrate and a peripheral side surface of the first superabrasive layer;
- and
- a sleeve comprising a third superabrasive layer;
- wherein an interior side surface of the sleeve surrounds the cutting body such that at least one of a gap and an interface material is disposed directly radially between the first superabrasive layer and the third superabrasive layer.
Dependencies are inferred from the claim text.