| 发明名称 |
Tubing fill and testing valve |
| 摘要 |
The present invention provides for a valve in a tubing string that allows the tubing string to fill with well fluids as the string is assembled and lowered into a well bore, but can be used to check pressure integrity of the tubing string during various stages of the assembly.
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| 申请公布号 |
US7063156(B2) |
申请公布日期 |
2006.06.20 |
| 申请号 |
US20030417015 |
申请日期 |
2003.04.16 |
| 申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
PATEL DINESH R.;SASK DAVID E. |
| 分类号 |
E21B34/10;E21B21/10;E21B34/00;E21B34/12;F16K15/03 |
主分类号 |
E21B34/10 |
| 代理机构 |
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代理人 |
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