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    METHOD FOR CONNECTING TWO INDIVIDUAL FLUID TRANSPORT PIPE ELEMENTS USING RIGID SHELLS
    71.
    发明申请
    METHOD FOR CONNECTING TWO INDIVIDUAL FLUID TRANSPORT PIPE ELEMENTS USING RIGID SHELLS 有权

    公开(公告)号：US20210331422A1

    公开(公告)日：2021-10-28

    申请号：US17368423

    申请日：2021-07-06

    Applicant: SAIPEM S.A.

    Inventor： Giulio Fatica ,  Taoufik Majdoub

    IPC: B29C65/16 ,  B29C65/00 ,  F16L1/26 ,  F16L13/02 ,  F16L58/18 ,  F16L59/20

    Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element being made of metal alloy and being covered in an outer insulating coating (6, 6′) made of a thermoplastic material, with the exception of an end portion that does not have an outer insulating coating, the method comprising a step of butt-welding together two unit pipe elements at their end portions having no outer insulating coating, a step of mechanically assembling at least two rigid shells (14, 16) made of a thermoplastic material on the end portions of the unit pipe elements not having an outer insulating coating, and a step of keeping the shells sealed against the outer insulating coating of the two unit pipe elements.

    Method for the offshore installation of a preheated double-walled underwater pipe for transporting fluids
    73.
    发明授权
    Method for the offshore installation of a preheated double-walled underwater pipe for transporting fluids 有权

    公开(公告)号：US10989331B2

    公开(公告)日：2021-04-27

    申请号：US16337541

    申请日：2017-09-28

    Applicant: SAIPEM S.A.

    Inventor： Vincent Cocault-Duverger ,  Antoine Jardin ,  Vincent Chojnacki

    IPC: F16L1/15 ,  F16L1/20 ,  F16L53/34 ,  F16L9/19

    Abstract: A method of installing at sea a double-walled preheated undersea pipe for transporting fluids, wherein for each new pipe section to be assembled to a pipe that is already installed at sea: the method involves preheating the inner wall unit element inside the outer wall unit element of the new pipe section; assembling the inner wall unit elements of the new pipe section to the inner wall of the pipe that is already installed at sea; assembling the outer wall unit element of the new pipe section to the outer wall of the pipe that is already installed at sea; lowering the new pipe section into the sea; and repeating the above for other new pipe sections to be assembled so as to prestress the pipe while it is being installed at sea.

    MULTIPHASE FLUID DISPENSER
    74.
    发明申请
    MULTIPHASE FLUID DISPENSER 有权

    公开(公告)号：US20210069731A1

    公开(公告)日：2021-03-11

    申请号：US16613966

    申请日：2018-03-29

    Applicant: SAIPEM S.A.

    Inventor： Raymond HALLOT ,  Sadia SHAIEK ,  Thomas VALDENAIRE

    IPC: B04C3/06

    Abstract: A multiphase fluid manifold comprises a cylindrical enclosure having, at one longitudinal end, an inlet orifice and, at an opposite longitudinal end, a plurality of cylindrical outlet orifices of the same right section that are regularly distributed around a longitudinal axis of the enclosure and that are aligned in a common plane extending transversely to the enclosure, each of the inlet and outlet orifices leading to or from the inside of the enclosure along a direction that is substantially tangential to the enclosure.

    Method of making safe an undersea bottom-to-surface production pipe when restarting production
    78.
    发明授权
    Method of making safe an undersea bottom-to-surface production pipe when restarting production 有权

    公开(公告)号：US10392906B2

    公开(公告)日：2019-08-27

    申请号：US15956565

    申请日：2018-04-18

    Applicant: SAIPEM S.A.

    Inventor： Stéphanie Abrand ,  Stéphane Anres ,  Lionel Macauley

    IPC: E21B43/01 ,  E21B43/38 ,  F17D1/16 ,  E21B43/013 ,  E21B41/00 ,  F17C11/00 ,  F16L55/46

    Abstract: Method of stopping and restarting production in an undersea bottom-to-surface connection production pipe having a first pipe portion on the sea bottom from a well head to the bottom end of a second pipe portion extending to a ship or floating. When production is stopped, at least the first pipe portion is filled with a depressurized production fluid. Thereafter the following steps are performed: e1) forming a gel from two reagents in a first gel-forming chamber on the sea bottom; e2) sending a quantity of separator gel into the first pipe portion that pushes the cold fluid contained in the first pipe portion to the second pipe portion, prior to closing the first chamber; and then; e3) starting production, the gel forming physical separation and thermal and chemical isolation between firstly the production fluid and secondly a production fluid within the first production pipe portion.

    Method Of Determining Stress Variations Over Time In An Undersea Pipe For Transporting Fluids
    79.
    发明申请
    Method Of Determining Stress Variations Over Time In An Undersea Pipe For Transporting Fluids 审中-公开

    公开(公告)号：US20190064030A1

    公开(公告)日：2019-02-28

    申请号：US16117515

    申请日：2018-08-30

    Applicant: SAIPEM S.A.

    Inventor： Axel SUNDERMANN

    IPC: G01M5/00 ,  G01K11/32 ,  G01L11/02

    Abstract: A method of determining stress variations over time in an undersea pipe for transporting fluids, the method comprising: installing along the entire length of the pipe (1) at least one distributed optical fiber sensor (2-1 to 2-4) using Rayleigh backscattering, the sensor being dedicated to measuring at least one degree of freedom of movement variation over time in the pipe at each cross section of the pipe; continuously measuring movement variation of the optical fiber sensor over time; and determining stress variations over time at each point in the pipe by time integration of the measured movement variation of the optical fiber sensor.

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