发明名称 Semi-submersible, mobile drilling vessel with storage shaft for tubular drilling equipment
摘要 The drilling vessel includes at least one floating body and a platform which is supported by one or more support columns on the floating body and includes a drilling installation. The vessel is provided with storage provisions for tubular drilling equipment. The storage provisions include one or more shafts which are disposed in one or more of the support columns, extend downwards from the platform and in which a number of items of the drilling equipment can be vertically disposed.
申请公布号 US6524049(B1) 申请公布日期 2003.02.25
申请号 US20000445726 申请日期 2000.02.14
申请人 WORKSHIPS CONTRACTORS B.V. 发明人 MINNES ROELOF ARNOLDUS
分类号 B63B35/00;B63B35/44;E21B19/14;(IPC1-7):E21B19/14 主分类号 B63B35/00
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