发明名称 |
MULTI-COMPONENT CUTTING ELEMENT USING CONSOLIDATED ROD-LIKE POLYCRYSTALLINE DIAMOND |
摘要 |
<p>An enlarged diamond table for use as a cutter in rotating drill bits is provided by disposing a plurality of thermally stable or leached polycrystalline diamond (PCD) rod-like elements within a matrix body. In one embodiment the matrix body is impregnated with diamond grit and completely fills the interstitial spaces between the plurality of PCD elements. Generally, the PCD elements have their longitudinal axes arranged in a mutually parallel configuration. The bundle of rod-like diamond elements are in one embodiment in a compact touching array and in another embodiment in a spaced-apart array. In the illustrated embodiment, a bundle of rod-like diamond elements are disposed so that their end surfaces are exposed on the cutting face of the cutting slug. The slug is then in turn mounted on a stud or directly infiltrated into a matrix body bit.</p> |
申请公布号 |
EP0156235(B1) |
申请公布日期 |
1989.05.24 |
申请号 |
EP19850102804 |
申请日期 |
1985.03.12 |
申请人 |
EASTMAN CHRISTENSEN COMPANY |
发明人 |
MESKIN, ALEXANDER K.;BIGELOW, LOUIS K. |
分类号 |
E21B10/56;E21B10/567 |
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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