| 发明名称 |
EXTERNALLY ACTIVATED SEAL SYSTEM FOR WELLHEAD. |
| 摘要 |
<p>A method and apparatus for installing casing hangers in a wellbore utilizing an externally activated gripping system to temporarily bind wearbushings secured to casing and tubing hangers in order to lock-down such hangers during various wellbore drilling activities, thereby minimizing the size of landing shoulders and eliminating additional lock down equipment and simplifying running procedures.</p> |
| 申请公布号 |
MX2010003199(A) |
申请公布日期 |
2010.04.21 |
| 申请号 |
MX20100003199 |
申请日期 |
2008.09.23 |
| 申请人 |
PLEXUS OCEAN SYSTEMS LTD. |
发明人 |
BERNARD HERMAN VAN BILDERBEEK |
| 分类号 |
E21B33/02;E21B23/00 |
主分类号 |
E21B33/02 |
| 代理机构 |
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代理人 |
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