| 发明名称 |
Coiled Tubing Injector With Limited Slip Chains |
| 摘要 |
A coiled tubing injector comprises a drive system for independently driving a plurality of chains independently but otherwise retarding relative motion between the driven chains when a chain begins to slip uncontrollably. |
| 申请公布号 |
US2014000865(A1) |
申请公布日期 |
2014.01.02 |
| 申请号 |
US201314014327 |
申请日期 |
2013.08.29 |
| 申请人 |
NATIONAL OILWELL VARCO, L.P. |
发明人 |
MCCULLOCH DAVID W.;STEFFENHAGEN TIMOTHY S.;WHITE WILLIAM B.;STEWART WILLIAM G. |
| 分类号 |
E21B19/08 |
主分类号 |
E21B19/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
