| 发明名称 |
DOWNHOLE APPARATUS AND METHOD |
| 摘要 |
A bearing (12) for a downhole apparatus (10) comprises abody (42) and an upset portion (44). The upset portion (44) extends radially outwards from the body (42), the body (42) and the upset portion (44) defining a channel (46) for receiving fluid flow for lubricating the bearing (12). |
| 申请公布号 |
CA2949741(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
CA20142949741 |
申请日期 |
2014.05.29 |
| 申请人 |
PARADIGM DRILLING SERVICES LIMITED |
发明人 |
SIMPSON, NEIL ANDREW ABERCROMBIE |
| 分类号 |
E21B4/00;E21B17/10 |
主分类号 |
E21B4/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
