| 发明名称 |
WELLBORE DRILL BIT HAVING SHEAR CUTTERS AND GOUGING CUTTERS |
| 摘要 |
A fixed cutter drill bit includes a bit body and at least one primary blade formed in the bit body and defining a surface profile on the bit body. The at least one primary blade extends from a first selected radial distance from a center or rotation of the bit body to a gage portion. At least one shear cutter affixed to the at least one blade. At least one gouging cutter affixed to the bit body rotationally ahead of the at least one blade. At least one nozzle is disposed in the bit body in a rotational position between the at least one primary blade and the at least one gouging cutter. |
| 申请公布号 |
US2016312538(A1) |
申请公布日期 |
2016.10.27 |
| 申请号 |
US201514691604 |
申请日期 |
2015.04.21 |
| 申请人 |
Shear Bits, Ltd. |
发明人 |
Marley Ryan J. C.;Herman John James;Beaton Timothy P. |
| 分类号 |
E21B10/12 |
主分类号 |
E21B10/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A fixed cutter drill bit, comprising:
a bit body; at least one primary blade formed in the bit body and defining a surface profile on the bit body, the at least one primary blade extending from a first selected radial distance from a center or rotation of the bit body to a gage portion; at least one shear cutter affixed to the at least one blade; at least one gouging cutter affixed to the bit body rotationally displaced from the at least one blade; and at least one fluid orifice disposed in the bit body in a rotational position between the at least one primary blade and the at least one gouging cutter. |
| 地址 |
Calgary CA |
