KERFING HYBRID DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS |
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| 申请号 | US15948808 | 申请日 | 2018-04-09 | 公开(公告)号 | US20180230756A1 | 公开(公告)日 | 2018-08-16 |
| 申请人 | SMITH INTERNATIONAL, INC.; | 发明人 | Michael George Azar; Balasubramanian Durairajan; Madapusi Keshavan; | ||||
| 摘要 | A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two non-planar cutting elements. | ||||||
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| 说明书全文 | |||||||
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