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    Connector With Flange For Limiting Buckle Propagation Comprising A Differential Pressure Valve For Underwater Fluid-Transport Pipe
    1.
    发明申请
    Connector With Flange For Limiting Buckle Propagation Comprising A Differential Pressure Valve For Underwater Fluid-Transport Pipe 审中-公开

    公开(公告)号：US20200049267A1

    公开(公告)日：2020-02-13

    申请号：US16478726

    申请日：2017-11-30

    Applicant: SAIPEM S.A.

    Inventor： François-Régis PIONETTI

    IPC: F16K17/04 ,  F16L57/02

    Abstract: A junction part having a differential pressure valve (100) for an undersea fluid transport pipe, the valve having a valve body (102) with an internal chamber (106) opening out at one end into the pipe and at another end to the outside, a piston (110) arranged to subdivide the internal chamber into an admission chamber (106a) and a discharge chamber (106b), the piston being movable between an open position where admission chamber and the discharge chamber communicate with each other, and a closed position where the admission chamber and the discharge chamber are scaled from each other, a rating screw (112) screwed into the valve body and including a bore (114) within which there slides a rod (116) of the piston (110), and at least one hole (118) opening out into the discharge chamber and open to the outside, and a spring (120) rated so as to hold the piston in the closed position below a predetermined threshold pressure inside the admission chamber.

    Method For Assembling Thermoplastic Tubes By Induction Welding
    2.
    发明申请
    Method For Assembling Thermoplastic Tubes By Induction Welding 审中-公开

    公开(公告)号：US20190283338A1

    公开(公告)日：2019-09-19

    申请号：US16347525

    申请日：2017-10-24

    Applicant: SAIPEM S.A.

    Inventor： François-Régis PIONETTI ,  Taoufik MAJDOUB ,  Axel SUNDERMANN ,  Jalil AGOUMI

    IPC: B29C65/00 ,  B29C65/36

    Abstract: A method for assembling two tubes (1, 2) made from thermoplastic materials, that involves welding by heating two applied rotational contact surfaces of two parts of two tubes (1, 2), respectively, arranged end to end or overlapping coaxially (XX′). The method involves induction heating of at least one conductive welding element (4), arranged at the interface (3) between the two contact surfaces, by generating a magnetic field at said conductive welding element or elements, such that the melting of the thermoplastic materials constituting said contact surfaces produces a continuous and sealed weld at said interface on at least one closed loop along the entire perimeter of said interface.

    Machine And Method For Simultaneously Laying Cables In A Helix On The Outer Surface Of A Unit Element Of A Fluid Transport Duct
    5.
    发明申请
    Machine And Method For Simultaneously Laying Cables In A Helix On The Outer Surface Of A Unit Element Of A Fluid Transport Duct 审中-公开

    公开(公告)号：US20200070400A1

    公开(公告)日：2020-03-05

    申请号：US16461312

    申请日：2017-11-13

    Applicant: SAIPEM S.A.

    Inventor： François-Régis PIONETTI ,  Jalil AGOUMI ,  Axel SUNDERMANN

    IPC: B29C53/68 ,  B29C53/80

    Abstract: The invention provides a machine (4) and a method for laying cables helically on the outside surface of a unit pipe element (2) for transporting fluids, the machine comprising a rotary frame (14) for centering about an axis of symmetry (X-X) of the unit pipe element, the frame supporting a plurality of winding elements designed to receive cables, each being situated in a respective plane that is longitudinal relative to the unit pipe element and the planes being spaced apart from one another around the axis of symmetry of the unit pipe element, means for adjusting the angle of inclination of each winding element relative to the longitudinal plane in which it is situated, a linear travel stepper motor for moving the frame along the unit pipe element, and a rotary travel stepper motor for causing the frame to turn about that axis of symmetry of the unit pipe element.

    Method And Device For Induction Heating Of An Inner Pipe Of An Assembly Of Coaxial Pipes
    6.
    发明申请
    Method And Device For Induction Heating Of An Inner Pipe Of An Assembly Of Coaxial Pipes 审中-公开

    公开(公告)号：US20190285219A1

    公开(公告)日：2019-09-19

    申请号：US16347515

    申请日：2017-10-24

    Applicant: SAIPEM S.A.

    Inventor： François-Régis PIONETTI ,  Axel SUNDERMANN ,  Taoufik MAJDOUB ,  Jalil AGOUMI

    IPC: F16L53/34 ,  H05B6/10

    Abstract: A method of heating an inner pipe of a set of coaxial pipes, wherein the inner pipe is heated by induction using an electromagnetic induction coil (5) surrounding the outer pipe coaxially, the coil passing electrical power at a frequency lower than 100 Hz optimized for maximum energy efficiency of Joule effect heating of the inner pipe. A device (8) is also provided for induction heating an inner pipe of coaxial pipes, the device has a) induction heater having comprising at least one electromagnetic induction coil (5) coaxially surrounding the outer pipe of the coaxial pipes, and b) raising means (9) for raising a portion (1-2) of coaxial pipes (1) above the sea bed (13) together with said induction coil(s) (5) surrounding it.

    Method For Monitoring The Upthrust Of A Subsea Pipeline Buoy
    7.
    发明申请
    Method For Monitoring The Upthrust Of A Subsea Pipeline Buoy 审中-公开

    公开(公告)号：US20190242763A1

    公开(公告)日：2019-08-08

    申请号：US16343354

    申请日：2017-10-18

    Applicant: SAIPEM S.A.

    Inventor： Taoufik MAJDOUB ,  François-Régis PIONETTI ,  Axel SUNDERMANN ,  Jalil AGOUMI

    IPC: G01L1/24 ,  E21B17/01

    Abstract: A method of monitoring variation in the thrust exerted by at least one buoy exerting traction on an undersea pipe, wherein: 1) the deformation of at least one optical fiber is measured by measuring variation of an optical signal in said fiber extending on the surface or embedded securely in the bulk of at least one of the following support elements: a) the buoy; b) at least a portion of: b1) the length of the tubular wall of the pipe or b2) an anticorrosion coating or a thermally insulating material fastened on the surface of said pipe, on which said buoy exerts traction, and c) an abutment part secured to said pipe or buoy, and on which said buoy exerts said thrust; 2) a variation of said thrust exerted by said buoy is determined as a function of said variation of the optical signal.

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