发明名称 Storing a riser underwater
摘要 A riser for use in subsea operations that is parked subsea deployed as needed onto wellheads disposed proximate where the riser is parked. A base anchored into the seafloor provides a pedestal for parking the riser. The riser emits a beacon signal so it can be located when needed. When parked, the riser can be kept in a vertical orientation by a buoyancy module mounted on an upper portion of the riser. A workboat, or other vessel, attaches to the parked riser and positions it onto a designated wellhead. An extension connects the riser to platform or other vessel above the sea surface.
申请公布号 GB2486520(B) 申请公布日期 2017.02.22
申请号 GB20110018749 申请日期 2011.10.31
申请人 Vetco Gray Inc. 发明人 Stephen P Fenton;Ian Calder;Stewart Christie;Robert Lee
分类号 E21B19/14;E21B17/01;E21B19/00 主分类号 E21B19/14
代理机构 代理人
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