High impact resistant tool with an apex width between a first and second transitions
AssigneeSchlumberger Technology Corporation
InventorsDavid R. Hall, Ronald B. Crockett, Casey Webb, Michael Beazer
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Abstract
In one aspect of the present invention, a high impact resistant tool comprises a sintered polycrystalline diamond body bonded to a cemented metal carbide substrate at an interface, the body comprising a substantially pointed geometry with an apex, the apex comprising a curved surface that joins a leading side and a trailing side of the body at a first and second transitions respectively, an apex width between the first and second transitions is less than a third of a width of the substrate, and the body also comprises a body thickness from the apex to the interface greater than a third of the width of the substrate.
Claims9
A high impact resistant tool, comprising:
- a sintered diamond body bonded to a substrate at an interface;
- the diamond body comprising a substantially pointed geometry with an apex;
- the apex comprising a curved surface that tangentially joins a leading side and a trailing side of the diamond body at a first and second transitions respectively;
- and
- where the leading side and the trailing side form different angles with respect to an axis normal to a surface of the substrate and passing through the apex;
- wherein the apex comprises a curved surface with a radius of curvature ranging from 0.05 to 0.11 inches.
A high impact resistant tool, comprising:
- a sintered diamond body bonded to a substrate at an interface and a central axis extending longitudinally therethrough;
- the sintered diamond body comprising a substantially pointed geometry with an apex, an apex axis extending from the substrate and transversely through the apex;
- and
- where the apex axis is offset from the central axis;
- wherein the apex comprises a curved surface with a radius of curvature ranging from 0.05 to 0.11 inches.
A high impact resistant tool, comprising:
- a sintered diamond body bonded to a substrate at an interface and a central axis extending longitudinally therethrough;
- the sintered diamond body comprising a substantially pointed geometry with an apex, an apex axis extending from the substrate and transversely through the apex;
- and
- where the apex axis is offset from the central axis,
- wherein the apex comprises a linear surface, and wherein the apex comprises a curved surface with a radius of curvature ranging from 0.05 to 0.11 inches.
Dependencies are inferred from the claim text.