发明名称 |
MULTI-LAYERED PDC CUTTERS |
摘要 |
<p>A cutter element for a drill bit, comprising: a substrate having a longitudinal axis; a first layer of polycrystalline diamond coupled to the substrate; and a second layer of polycrystalline diamond coupled to the first layer at a first coherent boundary; where the first layer is axially positioned between the substrate and the second layer.</p> |
申请公布号 |
WO2012173893(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
WO2012US41659 |
申请日期 |
2012.06.08 |
申请人 |
NATIONAL OILWELL VARCO, L.P.;SUE, JIINJEN ALBERT |
发明人 |
SUE, JIINJEN ALBERT |
分类号 |
C22C26/00;E21B10/00 |
主分类号 |
C22C26/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|