发明公开
- 专利标题： SYSTEM FOR HOISTING A LOAD ON AN OFFSHORE DRILLING RIG
- 专利标题（中）： 用于在离岸钻机上提升载荷的系统
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申请号： EP14828366.6申请日： 2014-12-23
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公开(公告)号： EP3237718A1公开(公告)日： 2017-11-01
- 发明人: BORØY, Yngvar , ERIKSSON, Anders , STRAND, Thor , TEIXEIRA, Anibal B.
- 申请人： National Oilwell Varco Norway AS
- 申请人地址： Postboks 401 Lundsiden 4604 Kristiansand S NO
- 专利权人： National Oilwell Varco Norway AS
- 当前专利权人： National Oilwell Varco Norway AS
- 当前专利权人地址： Postboks 401 Lundsiden 4604 Kristiansand S NO
- 代理机构： Håmsø Patentbyrå AS
- 国际公布： WO2016105203 20160630
- 主分类号： E21B15/02
- IPC分类号： E21B15/02 ; E21B19/084
摘要：
A system for hoisting a load on a drilling rig includes: a hoisting means having an elongated hoisting member and an elongated hoisting member drive means; a drill string rotation means suspended from an end of the elongated hoisting member; a support structure having a first side and a second side and being adapted to support at least a portion of the weight the drill string rotation means; a first elongated hoisting member guiding means connected to the support structure; and a counterweight connected to the elongated hoisting member at the second side of the support structure. The elongated hoisting member is reeved over the first elongated hoisting member guiding means from the first to the second side of the support structure. The drill string rotation means is suspended from the elongated hoisting member at the first side of the support structure
公开/授权文献
- EP3237718B1 SYSTEM FOR HOISTING A LOAD ON AN OFFSHORE DRILLING RIG 公开/授权日：2019-02-06
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