Invention Grant
- Patent Title: Blade geometry for fixed cutter bits
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Application No.: US15570632Application Date: 2016-04-26
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Publication No.: US10738538B2Publication Date: 2020-08-11
- Inventor: Michael G. Azar
- 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/US2016/029393 WO 20160426
- International Announcement: WO2016/176221 WO 20161103
- Main IPC: E21B10/43
- IPC: E21B10/43 ; E21B10/567 ; E21B10/42 ; E21B10/62

Abstract:
A downhole tool includes a tool body, at least one blade with a front face having an undulating geometry including a plurality of ridges and valleys, and a top face facing outwardly from the tool body and transitioning to the front face at a cutting edge. At least one cutting element is in a pocket at the cutting edge. The at least one cutting element has a non-planar cutting face facing in the same direction as the front face. The non-planar cutting face has at least two sloping surfaces meeting at an elongated crest, valley, or other feature. A portion of the elongated feature adjacent the front face may substantially align with, and have substantially corresponding geometry as, a ridge or valley of the front face.
Public/Granted literature
- US20180355671A1 BLADE GEOMETRY FOR FIXED CUTTER BITS Public/Granted day:2018-12-13
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