Pdc cutter with depressed feature
AssigneeSmith International, Inc.
InventorYouhe Zhang
Life of this patent
Estimating the term…
Abstract
A cutting element includes a table coupled to a substrate at an interface. The table includes a working surface opposite the interface and defined by a perimeter, a table thickness measured between the interface and the working surface, and a torque transmittable depression formed in the working surface of the table a distance away from the perimeter. The torque transmittable depression extends a depth into the table and has a cross-sectional profile with a torque transmittable shape. The depth of the depression may be greater than the thickness of the table, or an optional sensor may be placed in the depression.
Claims20
A cutting element, comprising:
- a table coupled to a substrate at an interface, the table comprising:
- a working surface opposite the interface and defined by a perimeter;
- a depression formed in the working surface of the table;
- and
- a sensor in the torque transmittable depression.
A bit, comprising:
- a bit body;
- at least one cutter pocket formed in the bit body;
- at least one cutting element in the at least one cutter pocket, the at least one cutting element including a substrate and a table coupled to the substrate at an interface, the table having a working surface opposite the interface and defined by a perimeter;
- and
- a torque transmittable depression having a cross-sectional profile with a torque transmittable shape, the torque transmittable depression extending from the working surface and having a depth greater than a thickness of the table as measured between the interface and the working surface, such that the depression extends through the interface and into the substrate.
A cutting element, comprising:
- a substrate;
- and
- a table coupled to the substrate at an interface, a table thickness being measured between the interface and a working surface opposite the interface and defined by a perimeter, the working surface including:
- a first material forming the perimeter of the working surface;
- and
- an interior portion formed of a second material, the interior portion being interior to the perimeter, and the second material having a higher machinability than the first material.
Dependencies are inferred from the claim text.