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    Method for connecting two unitary elements of a conduit for transporting fluids by means of a sleeve
    32.
    发明授权
    Method for connecting two unitary elements of a conduit for transporting fluids by means of a sleeve 有权

    公开(公告)号：US11559949B2

    公开(公告)日：2023-01-24

    申请号：US16303581

    申请日：2017-04-28

    Applicant: SAIPEM S.A.

    Inventor： Giulio Fatica ,  Taoufik Majdoub

    IPC: B29C65/00 ,  F16L47/03 ,  B29K23/00 ,  B29L23/00 ,  F16L58/18

    Abstract: A method of connecting together two unit elements (4, 4′) of a fluid transport pipe, each unit pipe element 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 includes: a step of welding together two abutting unit pipe elements; a step of positioning an annular sleeve (14) around a cut-back and in part around the outer insulating coatings of the two unit pipe elements, the sleeve being made of a thermoplastic material; a step of fastening the sleeve in sealed manner by weld bonding on the outer insulating coatings; and a step of applying an external pressure on the sleeve to enable it to be deformed elastically and match the shape of the respective end portions of the two unit pipe elements.

    Method of making safe an undersea bottom-to-surface production pipe when production is stopped
    33.
    发明授权
    Method of making safe an undersea bottom-to-surface production pipe when production is stopped 有权

    公开(公告)号：US10989009B2

    公开(公告)日：2021-04-27

    申请号：US15956104

    申请日：2018-04-18

    Applicant: SAIPEM S.A.

    Inventor： Stéphanie Abrand ,  Stéphane Anres ,  Lionel Macauley

    IPC: E21B33/038 ,  E21B33/037 ,  E21B43/013 ,  E21B41/00 ,  E21B43/01

    Abstract: Method of stopping production and making safe 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 support. After stopping production, depressurization of the entire undersea bottom-to-surface connection production pipe is performed. Thereafter, the following steps are preformed: isolating the first production pipe portion from the second pipe portion, and leaving the production fluid in the first production pipe portion, but not in said second pipe portion, depressurizing the first production pipe portion filled with production fluid by reducing the pressure in the first pipe portion and by discharging more completely the gas contained in the production fluid that it contains.

    Method of emptying an undersea fluid transport pipe that is submerged and full of water
    34.
    发明授权
    Method of emptying an undersea fluid transport pipe that is submerged and full of water 有权

    公开(公告)号：US10823311B2

    公开(公告)日：2020-11-03

    申请号：US15975385

    申请日：2018-05-09

    Applicant: SAIPEM S.A.

    Inventor： Alexandre Bailey

    IPC: B08B9/032 ,  F16L1/16 ,  F16L1/12

    Abstract: A method of emptying an undersea fluid transport pipe (2) that is submerged and full of water, by pumping out at least a portion of the water present inside the submerged pipe using a submersible pump unit (6) connected to a point of the pipe, the volume of water pumped out from the inside of the pipe being compensated by a gas injected under pressure into the submerged pipe from a point (18) thereof that is situated higher than the connection point (12; 14) to the submersible pump unit. The invention also provides an installation for performing such a method.

    Method and device for monitoring the mechanical behaviour of a subsea pipe for transporting pressurized fluids
    35.
    发明授权
    Method and device for monitoring the mechanical behaviour of a subsea pipe for transporting pressurized fluids 有权

    公开(公告)号：US10768023B2

    公开(公告)日：2020-09-08

    申请号：US16074998

    申请日：2017-01-20

    Applicant: SAIPEM S.A. ,  CEMENTYS

    Inventor： Francois-Regis Pionetti ,  Jalil Agoumi ,  Axel Sundermann ,  Jean-Baptiste Paris ,  Vincent Lamour

    IPC: G01D5/353 ,  G01M11/08 ,  G01M5/00 ,  G01L1/24

    Abstract: A method of monitoring mechanical behavior of an undersea pipe (2) transporting fluid under pressure and made by assembling a plurality of unit pipe elements (4). A calibration step is performed consisting of using a measurement cable having an optical fiber sensor to measure deformations experienced by each pipe element while it is subjected on land to various mechanical stresses in predetermined directions and magnitudes, and, on the basis of the measurements, establishing the mechanical signature of each pipe element. A monitoring step is performed consisting of using a measurement cable (18) having an optical fiber sensor that makes uses Brillouin backscattering and is helically positioned at constant pitch (p) on each pipe element with the handedness of the helical pitch alternating for two adjacent pipe elements to recover variations in optical signal injected into the sensors while the pipe is in service.

    Connector With Flange For Limiting Buckle Propagation Comprising A Differential Pressure Valve For Underwater Fluid-Transport Pipe
    36.
    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.

    PROCESS FOR LINING A STEEL PIPE FOR THE SUBSEA TRANSPORT OF FLUIDS
    37.
    发明申请
    PROCESS FOR LINING A STEEL PIPE FOR THE SUBSEA TRANSPORT OF FLUIDS 审中-公开

    公开(公告)号：US20200041062A1

    公开(公告)日：2020-02-06

    申请号：US16495618

    申请日：2018-02-22

    Applicant: SAIPEM S.A.

    Inventor： Antonio CARLUCCI ,  Eric KERDILES ,  Roberto PALLADINI

    IPC: F16L58/08 ,  F16L58/18 ,  F16L13/02

    Abstract: A process for lining a steel pipe for the subsea transport of fluids comprises machining of an annular cavity in an inner wall of the pipe to be lined. The cavity is set back longitudinally relative to an end of the pipe. The deposition by welding of a first resurfacing layer includes a corrosion-resistant metal alloy on the inside of the cavity. Surface machining of the first resurfacing layer is done to the internal diameter of the pipe. A liner made of corrosion-resistant steel alloy is introduced into the pipe. Deposition by welding includes at least one second resurfacing layer made of corrosion-resistant metal alloy on the inner wall of the pipe between the end of the liner in contact with the first machined resurfacing layer and the corresponding end of the pipe. Surface machining of the second resurfacing layer is done to the internal diameter of the pipe.

    DEVICE FOR COUPLING TWO BOATS
    38.
    发明申请
    DEVICE FOR COUPLING TWO BOATS 审中-公开

    公开(公告)号：US20190382083A1

    公开(公告)日：2019-12-19

    申请号：US16488769

    申请日：2018-02-09

    Applicant: SAIPEM S.A.

    Inventor： Christophe COLMARD ,  Sylvie DESCHAMPS ,  Mathieu BUSCHIAZZO

    IPC: B63B21/50 ,  B63C1/06 ,  B63B21/02 ,  B63B21/00 ,  B63B27/25

    Abstract: A device for rapidly remotely coupling together two vessels, in particular a first ship or floating support and a second ship, comprises: at least one floating and docking structure fastened to or suitable for being releasably fastened to the side and/or the keel of the hull of a second vessel; and at least two actuators spaced in succession from one another in the longitudinal direction of the first vessel. The actuator cylinder of each the actuator is arranged to be fastened to the side of the hull of the first vessel, using a first fastener and pivot hinge device. The end of the rod of each actuator is arranged to be fastened to or suitable for being fastened to the floating and docking structure via a second fastener and pivot hinge device.

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