| 发明名称 |
VALVE WITHIN A CONTROL LINE |
| 摘要 |
The invention is a valve that prevents blow-outs through a control line whi le simultaneously allowing bi-directional flow or pressure transfer through the control line. The invention comprises a shuttle valve disposed in the control line.</ SDOAB>
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| 申请公布号 |
CA2508854(A1) |
申请公布日期 |
2005.12.10 |
| 申请号 |
CA20052508854 |
申请日期 |
2005.05.30 |
| 申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
GAMBIER, PHILIPPE;HIRON, STEPHANE;WETZEL, RODNEY J. |
| 分类号 |
E21B33/037;E21B34/06;E21B34/08;E21B34/10;E21B34/16;(IPC1-7):E21B34/06 |
主分类号 |
E21B33/037 |
| 代理机构 |
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