Invention Application
- Patent Title: CUTTING ELEMENTS AND DRILL BITS INCORPORATING THE SAME
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Application No.: US15538124Application Date: 2015-12-04
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Publication No.: US20170362899A1Publication Date: 2017-12-21
- Inventor: Lynn Belnap , Stewart N. Middlemiss
- Applicant: Smith International, Inc.
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- International Application: PCT/US2015/063919 WO 20151204
- Main IPC: E21B10/567
- IPC: E21B10/567 ; E21B10/36 ; E21B10/56

Abstract:
An ultra-hard cutting element for use in a drill bit, such as a percussion drill bit, a rotary cone drill bit, a drag bit, or a reamer. The ultra-hard cutting element includes a base portion, an extension portion on an end of the base portion, and a lip on an outer surface of the extension portion. At least a portion of the outer surface of the extension portion includes an ultra-hard abrasive material. The ultra-hard abrasive material may be polycrystalline diamond or polycrystalline cubic boron nitride.
Public/Granted literature
- US11015397B2 Cutting elements and drill bits incorporating the same Public/Granted day:2021-05-25
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