| 发明名称 |
DOWNHOLE DRILLING TOOLS INCLUDING LOW FRICTION GAGE PADS WITH ROTATABLE BALLS POSITIONED THEREIN |
| 摘要 |
In accordance with some embodiments of the present disclosure, a downhole drilling tool comprises a bit body, a blade on an exterior portion of the bit body, and a gage pad on the blade. The gage pad includes a ball retainer and a ball located in the ball retainer such that an exposed portion of the ball is positioned to contact a wellbore and rotate in response to frictional engagement with the wellbore. |
| 申请公布号 |
US2016290069(A1) |
申请公布日期 |
2016.10.06 |
| 申请号 |
US201315035717 |
申请日期 |
2013.12.13 |
| 申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Chen Shilin |
| 分类号 |
E21B17/10;E21B10/60;E21B10/55 |
主分类号 |
E21B17/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A downhole drilling tool, comprising:
a bit body; a blade on an exterior portion of the bit body; a gage pad on the blade; a ball retainer in the gage pad; and a ball located in the ball retainer such that an exposed portion of the ball is positioned to contact a wellbore and rotate in response to frictional engagement with the wellbore. |
| 地址 |
Houston TX US |
