Invention Grant
- Patent Title: Rolling cutter stability
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Application No.: US15764002Application Date: 2016-09-21
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Publication No.: US10774596B2Publication Date: 2020-09-15
- Inventor: Youhe Zhang , Chen Chen , Yuri Burhan , Balasubramanian Durairajan , Sandeep Tammineni
- 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/US2016/052727 WO 20160921
- International Announcement: WO2017/058581 WO 20170406
- Main IPC: E21B10/56
- IPC: E21B10/56 ; E21B10/62 ; E21B10/42

Abstract:
A cutting element includes a cutting end extending a depth from a cutting face to an interface surface opposite from the cutting face, and a spindle, the spindle axially separated from the cutting end by a transition region. The spindle has a spindle diameter measured between a spindle side surface, which is less than a cutting end diameter. A guide length, measured from a point of transition to the transition region to a retention feature, is longer than 75% of a total length of the spindle.
Public/Granted literature
- US20180283106A1 IMPROVEMENTS ON ROLLING CUTTER STABILITY Public/Granted day:2018-10-04
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