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
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