OFF SHORE RIGID STEEL RISER TERMINATION AND FIXATION SYSTEM TO FLOATING PRODUCTION STORAGE OFFLOADING (FPSO) VESSEL

    公开(公告)号:US20240229577A1

    公开(公告)日:2024-07-11

    申请号:US18560351

    申请日:2022-04-07

    Applicant: SAIPEM S.P.A.

    CPC classification number: E21B19/004 E21B17/085 E21B43/0107

    Abstract: A riser termination connects a steel riser duct to an I-tube or J-tube connecting interface of a floating unit, and includes an upper hang off portion, lower coupling adapter, steel termination conduit having an upper conduit end connected to the upper hang off portion and a lower conduit end connected to the steel riser duct. The termination conduit extends axially slidable through the coupling adapter. A circular cylindrical bearing seat is formed inside the coupling adapter and defines a bearing seat diameter, a bearing body having a bearing body diameter and protruding outward from the termination conduit inside the bearing seat. The bearing body diameter is smaller than the bearing seat diameter. A gap between the bearing body and the bearing seat allows relative sliding and rotation. The termination conduit includes a variable cross-section conduit portion having a diameter and wall thickness decreasing from the bearing body.

    Anti-collision system and method
    83.
    发明授权

    公开(公告)号:US12031390B2

    公开(公告)日:2024-07-09

    申请号:US17055246

    申请日:2019-05-09

    Applicant: SAIPEM S.P.A.

    CPC classification number: E21B19/002 F16P3/147 G01S13/58 G01S13/93

    Abstract: An anti-collision method includes storing information on a current position of at least one vehicle within a target work volume, scanning the target work volume by a radiofrequency radiation signal to detect the presence of at least one human operator within the target work volume, determining the current position of the at least one human operator within the target work volume, comparing the current position of the at least one human operator with the current position of the at least one vehicle, and, if the current position of the at least one human operator at least partially overlaps the current position of the at least one vehicle, activating at least one safety device.

    Method and system for laying a pipeline on the bed of a body of water

    公开(公告)号:US11578817B2

    公开(公告)日:2023-02-14

    申请号:US17275564

    申请日:2019-09-17

    Applicant: SAIPEM S.p.A.

    Inventor: Mauro Pigliapoco

    Abstract: A method for laying a pipeline on the bed of a body of water comprises assembling a pipeline on a laying vessel; launching the pipeline from the laying vessel; identifying a zone of the bed of the body of water that causes stresses greater than a threshold value determined for the pipeline; progressively laying the pipeline on the bed of the body of water by advancing the laying vessel; and making, through controlled plastic deformation, at least one curved section along the pipeline with a curvature concordant with the curvature assumed by the pipeline in proximity to said zone, when the pipeline is at least partly laid on the bed of the body of water and partly suspended with respect to the bed of the body of water in proximity to said zone.

    Method and system for laying a submarine pipeline

    公开(公告)号:US11549614B2

    公开(公告)日:2023-01-10

    申请号:US16614590

    申请日:2018-05-25

    Applicant: SAIPEM S.P.A.

    Abstract: 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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