Invention Grant
- Patent Title: Polycrystalline abrasive composite cutter
- Patent Title (中): 多晶磨料复合切割机
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Application No.: US12161526Application Date: 2007-01-26
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Publication No.: US08109350B2Publication Date: 2012-02-07
- Inventor: Zhigang Z. Fang , Stephen C. Johnson , Haibo Zhang
- Applicant: Zhigang Z. Fang , Stephen C. Johnson , Haibo Zhang
- Applicant Address: US UT Salt Lake City
- Assignee: University of Utah Research Foundation
- Current Assignee: University of Utah Research Foundation
- Current Assignee Address: US UT Salt Lake City
- Agency: Thorpe North & Western LLP
- International Application: PCT/US2007/002180 WO 20070126
- International Announcement: WO2007/089590 WO 20070809
- Main IPC: E21B10/46
- IPC: E21B10/46

Abstract:
A polycrystalline abrasive composite cutter, including a tool body with a top cutting surface and a flank surface. The composite cutter, joined to a substrate, constitute a shear cutter for a PDC bit, roller-cone bit insert, or other tool that can be highly useful for petroleum drilling or other applications. The body of the polycrystalline abrasive composite cutter includes a plurality of polycrystalline abrasive layers (90) and a plurality of arresting layers (100). The polycrystalline abrasive layers (90) and the arresting layers (100) are arranged to alternate throughout the tool body in a direction normal to the top cutting surface (92) and in a direction normal to a flank surface (94).
Public/Granted literature
- US20090218146A1 Polycrystalline Abrasive Composite Cutter Public/Granted day:2009-09-03
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