发明名称 |
POLYCRYSTALLINE DIAMOND COMPACT CUTTERS WITH CONIC SHAPED END |
摘要 |
A cutting element may have a substrate; and an ultrahard material layer having a substantially planar upper surface disposed on an upper surface of the substrate; wherein at least a portion of the side surface between the upper surface of the substrate and a lower end of the substrate form at least one conic surface, wherein the at least one conic surface extends a height relative to the total height of the substrate and ultrahard material layer ranging from about 1:10 to 9:10, and wherein the substrate comprises a substantially planar lower surface. The cutting elements may also be rotatable cutting elements at least partially surrounded by outer support elements.
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申请公布号 |
US2012273280(A1) |
申请公布日期 |
2012.11.01 |
申请号 |
US201213456352 |
申请日期 |
2012.04.26 |
申请人 |
ZHANG YOUHE;SHEN YUELIN;BURHAN YURI;SHI JIBIN;SMITH INTERNATIONAL, INC. |
发明人 |
ZHANG YOUHE;SHEN YUELIN;BURHAN YURI;SHI JIBIN |
分类号 |
E21B10/36 |
主分类号 |
E21B10/36 |
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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