发明名称 |
Diamond cutters having modified cutting edge geometry and drill bit mounting arrangement therefor |
摘要 |
A diamond cutting element including a substantially planar diamond table having a periphery defined by a multiple chamfer. The angle of the outermost chamfer may be oriented to provide a bearing surface on the cutting element at the place of engagement with the formation being drilled.
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申请公布号 |
US5437343(A) |
申请公布日期 |
1995.08.01 |
申请号 |
US19920893704 |
申请日期 |
1992.06.05 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
COOLEY, CRAIG H.;LUND, JEFFREY B.;SMITH, REDD H. |
分类号 |
E21B10/56;E21B10/567;(IPC1-7):E21B10/46 |
主分类号 |
E21B10/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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