| 发明名称 |
CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS |
| 摘要 |
A cutting tool may include a tool body; a plurality of blades extending from the tool body; and a plurality of primary cutting elements and a plurality of backup cutting elements are on each of the plurality of blades, the backup cutting elements being behind and at approximately the same radial distance from the axis of the tool body as a corresponding primary cutting element, where the plurality of primary cutting elements include cutting elements having a first non-planar shape and the plurality of backup cutting elements include cutting elements having a second, different non-planar shape. |
| 申请公布号 |
US2014262545(A1) |
申请公布日期 |
2014.09.18 |
| 申请号 |
US201414206280 |
申请日期 |
2014.03.12 |
| 申请人 |
SMITH INTERNATIONAL, INC. |
发明人 |
Azar Michael G.;Durairajan Bala;Keshavan Madapusi K. |
| 分类号 |
E21B10/567 |
主分类号 |
E21B10/567 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cutting tool, comprising:
a tool body; a plurality of blades extending from the tool body; and a plurality of primary cutting elements and a plurality of backup cutting elements on each of the plurality of blades, the backup cutting elements being behind and at approximately the same radial distance from the axis of the tool body as a corresponding primary cutting element, the plurality of primary cutting elements comprising cutting elements having a first non-planar shape and the plurality of backup cutting elements comprising cutting elements having a second, different non-planar shape. |
| 地址 |
Houston TX US |
