- 专利标题: Method and system for laying a submarine pipeline
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申请号: US16614590申请日: 2018-05-25
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公开(公告)号: US11549614B2公开(公告)日: 2023-01-10
- 发明人: Flavio Conti , Diego Forestali
- 申请人: SAIPEM S.P.A.
- 申请人地址: IT Milan
- 专利权人: SAIPEM S.P.A.
- 当前专利权人: SAIPEM S.P.A.
- 当前专利权人地址: IT Milan
- 代理机构: Cantor Colburn LLP
- 优先权: IT102017000057253 20170526
- 国际申请: PCT/IB2018/053734 WO 20180525
- 国际公布: WO2018/215981 WO 20181129
- 主分类号: F16L1/235
- IPC分类号: F16L1/235 ; F16L1/19 ; B63B35/03 ; B23K101/10 ; E21B43/01 ; F16L1/26
摘要:
A method of laying an off-shore pipeline (1) comprises: —installing on the seabed (3) a fixed receiving structure (4) having a redirecting device (5), —paying-out from a laying vessel (7) a pipeline (1) with the pipeline end termination device (9) vertically towards the seabed (3), —extending a damping cable (6) from the pipeline end termination device (9) through the redirecting device (5) to an underwater damping buoy (14), —connecting an underwater suspension buoy (15) to the pipeline end termination device (9), —inclining the pipeline (1) from a vertical orientation towards the horizontal orientation, using: —the suspension buoy (14) to counterbalance at least part of the weight of the pipeline end termination device (9), —the damping buoy (14) for damping the pipeline (1).
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