| 发明名称 |
CUTTING ELEMENTS HAVING NON-PLANAR SURFACES AND DOWNHOLE CUTTING TOOLS USING SUCH CUTTING ELEMENTS |
| 摘要 |
A cutting element may include a substrate, an upper surface of the substrate including a crest, the crest transitioning into a depressed region, and an ultrahard layer on the upper surface, thereby forming a non-planar interface between the ultrahard layer and the substrate. A top surface of the ultrahard layer includes a cutting crest extending along at least a portion of a diameter of the cutting element, the top surface having a portion extending laterally away from the cutting crest having a lesser height than a peak of the cutting crest. |
| 申请公布号 |
US2015259988(A1) |
申请公布日期 |
2015.09.17 |
| 申请号 |
US201514613144 |
申请日期 |
2015.02.03 |
| 申请人 |
Smith International, Inc. |
发明人 |
CHEN Chen;SONG Huimin;ZHAO Liang;ZHANG Youhe;AZAR Michael G.;GAN Xiaoge;KESHAVAN Madapusi K.;LIN Zhijun;DURAIRAJAN Bala;STEWART Michael L. |
| 分类号 |
E21B10/567 |
主分类号 |
E21B10/567 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cutting element comprising:
a substrate, an upper surface of the substrate including a crest, the crest transitioning into a depressed region, and an ultrahard layer on the upper surface, thereby forming a non-planar interface between the ultrahard layer and the substrate, a top surface of the ultrahard layer comprising:
a cutting crest extending along at least a portion of a diameter of the cutting element, the top surface having a portion extending laterally away from the cutting crest having a lesser height than a peak of the cutting crest. |
| 地址 |
Houston TX US |
