Apparatuses for obtaining at-bit measurements for an earth-boring drilling tool
First Claim
Patent Images
1. An instrumented cutting element for use on an earth-boring tool, the instrumented cutting element comprising:
- a substrate;
a diamond table bonded to the substrate and having a cutting surface of the instrumented cutting element; and
at least one sensing element disposed at least partially within the diamond table, the at least one sensing element comprising a doped diamond material wherein the diamond table comprises at least one conduit comprising an electrical conductor coupled with the at least one sensing element and extending through at least a portion of the diamond table, the electrical conductor extending between the at least one sensing element and a bottom of the substrate.
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Abstract
An earth-boring drilling tool comprises a cutting element. The cutting element comprises a substrate, a diamond table, and at least one sensing element formed from a doped diamond material disposed at least partially within the diamond table. A method for determining an at-bit measurement for an earth-boring drill bit comprises receiving an electrical signal generated within a doped diamond material disposed within a diamond table of a cutting element of the earth-boring drill bit, and correlating the electrical signal with at least one parameter during a drilling operation.
49 Citations
16 Claims
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1. An instrumented cutting element for use on an earth-boring tool, the instrumented cutting element comprising:
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a substrate; a diamond table bonded to the substrate and having a cutting surface of the instrumented cutting element; and at least one sensing element disposed at least partially within the diamond table, the at least one sensing element comprising a doped diamond material wherein the diamond table comprises at least one conduit comprising an electrical conductor coupled with the at least one sensing element and extending through at least a portion of the diamond table, the electrical conductor extending between the at least one sensing element and a bottom of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An earth-boring tool, comprising:
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a tool body; and an instrumented cutting element attached to the tool body, the instrumented cutting element comprising; a substrate; a diamond table bonded to the substrate, the diamond table having a cutting surface of the instrumented cutting element; and at least one sensing element disposed at least partially within the diamond table, the at least one sensing element comprising a doped diamond material and extending from an interface between the substrate and the diamond table and extending only partially through the diamond table. - View Dependent Claims (14, 15, 16)
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Specification