Drill bit cutter elements with one or more textured, non-planar surfaces on cutting faces thereof and drill bits including same
AssigneeNational Oilwell Varco, L.P.
InventorRichard Rivera, Jr.
Life of this patent
Estimating the term…
Abstract
A cutter element for a drill bit includes a base portion having a central axis, a first end, a second end, and a radially outer surface extending axially from the first end to the second end. In addition, the cutter element includes a cutting layer fixably mounted to the first end of the base portion. The cutting layer includes a cutting face distal the base portion and a radially outer surface extending axially from the cutting face to the radially outer surface of the base portion. The cutting face includes a non-planar surface. The non-planar surface includes a surface finish including a plurality of elongate raised ridges and a plurality of recesses positioned between the raised ridges.
Claims20
A cutter element for a drill bit configured to drill a borehole in a subterranean formation, the cutter element comprising:
- a base portion having a central axis, a first end, a second end, and a radially outer surface extending axially from the first end to the second end;
- and
- a cutting layer fixably mounted to the first end of the base portion, wherein the cutting layer includes a cutting face distal the base portion and a radially outer surface extending axially from the cutting face to the radially outer surface of the base portion;
- wherein the cutting face includes a non-planar surface;
- wherein the non-planar surface comprises a surface finish including a plurality of elongate raised ridges and a plurality of recesses positioned between the raised ridges.
A cutter element for a drill bit configured to drill a borehole in a subterranean formation, the cutter element comprising:
- a base portion having a central axis, a first end, a second end, and a radially outer surface extending axially from the first end to the second end;
- and
- a cutting layer fixably mounted to the first end of the base portion, wherein the cutting layer includes a cutting face distal the base portion and a radially outer surface extending axially from the cutting face to the radially outer surface of the base portion;
- wherein the cutting face includes a non-planar surface;
- wherein the non-planar surface includes a surface finish comprising:
- a plurality of elongate raised ridges arranged in a plurality of laterally spaced parallel rows;
- a plurality of first recesses, wherein each first recess is positioned between a pair of laterally adjacent rows;
- and
- a plurality of second recess, wherein each second recess is positioned between a pair of raised ridges in each row.
Dependencies are inferred from the claim text.