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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
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.
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公开(公告)号：US10704727B2
公开(公告)日：2020-07-07
申请号：US16094746
申请日：2017-02-07
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , Jalil Agoumi , Axel Sundermann
Abstract: An electrical installation for an electrical system for trace heating a fluid transport pipe (8) made of metal, at least one polyphase circuit having three main electric cables (6-1, 6-4, and 6-7) in a star connection, and one additional electric cable (6-2, 6-3, 6-5, 6-6, 6-8, and 6-9), the main cables and the additional cable positioned around the pipe and connected at the pipeline end to a common connection ring (10) forming a point of zero electric potential, and detector for detecting a failure, if any, of the polyphase circuit to identify a failed main cable in order to replace it with the additional cable.
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Patent Agency Ranking
公开(公告)号：US11338526B2
公开(公告)日：2022-05-24
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 , F16L47/02 , B29C44/12 , B29L23/00 , B29K705/12 , B29K23/00 , B29C70/66 , B29K75/00 , B29K509/08
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.
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公开(公告)号：US11441719B2
公开(公告)日：2022-09-13
申请号：US16347515
申请日：2017-10-24
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , Axel Sundermann , Taoufik Majdoub , Jalil Agoumi
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) an induction heater having at least one electromagnetic induction coil (5) coaxially surrounding the outer pipe of the coaxial pipes, and b) a raising device (9) for raising a portion (1-2) of coaxial pipes (1) above the sea bed (13) together with the induction coil(s) (5) surrounding it.
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公开(公告)号：US11241820B2
公开(公告)日：2022-02-08
申请号：US16461312
申请日：2017-11-13
Applicant: SAIPEM S.A.
Inventor： François-Régis Pionetti , Jalil Agoumi , Axel Sundermann
Abstract: A machine (4) and a method therefore, for laying cables helically on the outside surface of a unit pipe element (2) for transporting fluids, the machine having 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.
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公开(公告)号：US10768024B2
公开(公告)日：2020-09-08
申请号：US16075053
申请日：2017-01-20
Applicant: SAIPEM S.A. , CEMENTYS
Inventor： Francois-Regis Pionetti , Jalil Agoumi , Axel Sundermann , Damien Maraval , Vincent Lamour
Abstract: A method of monitoring thermomechanical behavior of an undersea pipe (2) transporting fluid under pressure and made by assembling unit pipe elements (4), comprising determining a mechanical signature specific to each unit pipe element, using a measurement cable (16) having an optical fiber sensor using Brillouin backscattering to measure deformation of the pipe element while it is subjected on land to various mechanical stresses in predetermined directions and magnitudes, and establishing a stiffness matrix associated with the mechanical signature of each pipe element, a step of determining a thermal signature specific to each unit pipe element, which step consists in measuring the temperature changes of the unit pipe element while it is being subjected on land to various different electrical heating powers, and in establishing a thermal transfer function associated with the thermal signature of each pipe element, and a monitoring step consisting of recovering.
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公开(公告)号：US10712214B2
公开(公告)日：2020-07-14
申请号：US16343354
申请日：2017-10-18
Applicant: SAIPEM S.A.
Inventor： Taoufik Majdoub , François-Régis Pionetti , Axel Sundermann , Jalil Agoumi
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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