发明名称 |
METHOD AND APPARATUS FOR INSTALLING A RING BASKET |
摘要 |
A method and apparatus are described for the installation and removal of a ring gasket from an underwater wellhead connection. The ring gasket is carried by a ring gasket installation tool from the surface to the underwater wellhead connection by a self-propelled underwater vehicle. Final placement of the ring gasket may be accomplished by selective manipulation of the ring gasket installation tool by the underwater vehicle or by a cable attached to the tool. |
申请公布号 |
GB2171128(A) |
申请公布日期 |
1986.08.20 |
申请号 |
GB19860003843 |
申请日期 |
1986.02.17 |
申请人 |
* SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B V |
发明人 |
TUN CHESTER * GIST;ARTHUR GUSTAF * AHLSTONE |
分类号 |
E21B41/04;(IPC1-7):E21B41/04 |
主分类号 |
E21B41/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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