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US 8,739,904 B2Granted
Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
AssigneeBaker Hughes Incorporated
InventorSuresh G. Patel
Life of this patent
Estimating the term…
Abstract
Cutters for a drill bit wherein the cutters have at least one groove in a face of a superabrasive table of the cutters. The cutters may also include ribs adjacent to the at least one groove.
Claims21
A cutting element for use in drilling subterranean formations, comprising:
- a substantially cylindrical substrate;
- a volume of superabrasive material mounted to an end of the substrate and including:
- a cutting face configured for use on a drag bit, the cutting face comprising at least one planar portion extending in two dimensions generally transverse to a longitudinal axis of the cutting element;
- a rear boundary adjacent the substrate;
- only one or more grooves in the cutting face, all of the one or more grooves in the cutting face extending along at least a portion of a diameter of the cutting face and having substantially parallel sidewalls, all of the one or more grooves in the cutting face beginning at a lateral periphery of the cutting face and extending across the at least one planar portion of the cutting face at least as far as a geometric center point of the cutting face;
- and
- wherein there are no grooves in the cutting face that do not extend across the at least one planar portion at least as far as the geometric center point of the cutting face.
4 more elements
A cutting element for use on a bit for drilling subterranean formations, comprising:
- a substrate;
- a volume of diamond material mounted to an end of the substrate and including:
- a cutting face configured for use on a drag bit, the cutting face comprising at least one planar portion extending in two dimensions generally transverse to a longitudinal axis of the cutting element, the cutting face having at least another portion located at a non-perpendicular angle with respect to the longitudinal axis of the cutting element;
- a rear boundary adjacent the substrate;
- only one or more grooves in the cutting face, all of the one and more grooves in the cutting face extending along at least a portion of a diameter of the cutting face and having substantially parallel side walls, all of the one or more grooves in the cutting face extending from a cutting edge at a lateral periphery of the cutting face and extending across the at least one planar portion and the at least another portion of the cutting face at least as far as a geometric center point of the cutting face;
- and
- wherein there are no grooves in the cutting face that do not extend across the at least one planar portion at least as far as the geometric center point of the cutting face.
4 more elements
A drilling apparatus, comprising:
- a body having structure for connection to a drill string;
- cutting elements fixedly mounted to the body at an end thereof opposite the structure, at least one cutting element comprising:
- a substrate;
- a volume of superabrasive material mounted to an end of the substrate and including:
- a cutting face comprising at least one planar portion extending in two dimensions generally transverse to a longitudinal axis of the at least one cutting element;
- a rear boundary adjacent the substrate;
- only one or more grooves in the cutting face, all of the one or more grooves in the cutting face extending along at least a portion of a diameter of the cutting face and having substantially parallel side walls, all of the one or more grooves in the cutting face beginning at a lateral periphery of the cutting face and extending across the at least one planar portion of the cutting face at least as far as a geometric center point of the cutting face;
- and
- wherein there are no grooves in the cutting face that do not extend across the at least one planar portion at least as far as the geometric center point of the cutting face.
6 more elements
Dependencies are inferred from the claim text.