发明授权
- 专利标题: Multidirectional drill bit cutter
- 专利标题(中): 多向钻头铣刀
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申请号: US846216申请日: 1992-03-04
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公开(公告)号: US5279375A公开(公告)日: 1994-01-18
- 发明人: Gordon A. Tibbitts , William R. Trujillo
- 申请人: Gordon A. Tibbitts , William R. Trujillo
- 申请人地址: TX Houston
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 当前专利权人地址: TX Houston
- 主分类号: E21B10/56
- IPC分类号: E21B10/56 ; E21B10/567 ; E21B9/08
摘要:
A multidirectional drill bit cutter comprising a cylindrical stud having a layer of polycrystalline diamond formed thereabout. In one embodiment the stud is fortified with diamond grit and diamond rods to reduce stud wear and to reduce the depth of cut taken by the polycrystalline diamond cutting element formed about the stud. In another aspect of the invention, an earth-boring drilling system having a pair of flat profile bits utilizes multidirectional cutters in a manner which causes them to cut from a plurality of different directions.
公开/授权文献
- US4170910A Angle iron cutting 公开/授权日:1979-10-16
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