| 发明名称 |
Pressure regulated slip ram on a coil tubing blowout preventer |
| 摘要 |
A blowout preventer for coiled tubing includes a pressure regulator for a slip ram so that the coiled tubing can be held firmly without exceeding the yield strength of the coiled tubing material and without damaging the coiled tubing.
|
| 申请公布号 |
US6843463(B1) |
申请公布日期 |
2005.01.18 |
| 申请号 |
US20020232457 |
申请日期 |
2002.08.30 |
| 申请人 |
VARCO I/P/ INC. |
发明人 |
MCWHORTER DAVID J.;MCCLANAHAN PERRY LEE |
| 分类号 |
E21B33/06;(IPC1-7):E21B33/06 |
主分类号 |
E21B33/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
