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14 records (took 0.017 seconds)

    2.
    发明专利
    未知

    公开(公告)号：NO320972B1

    公开(公告)日：2006-02-20

    申请号：NO20044129

    申请日：2004-09-29

    Applicant: NEXANS

    Inventor： GRAFF RAGNVALD ,  MJELSTAD EINAR ,  OPSTAD KETIL ,  RAMSTAD BJORN H ,  STENSLAND MORTEN ,  AARSTEIN JON

    IPC: F16L9/19

    Abstract: An umbilical for subsea installation has a core of at least two longitudinal elements like cables, tubes and solid and/or hollow filling elements and a cover surrounding the core. At least one of the hollow filling elements is provided with several perforations and the cover is permeable for sea water, thereby allowing seawater to fill the interior of the filler elements as well as the interstices between the cable, tube and the filler elements and the cover when the umbilical is submerged.

    Remote detection of insulation damage on insulated tubes or pipes
    3.
    发明专利
    Remote detection of insulation damage on insulated tubes or pipes 未知

    公开(公告)号：NO20161954A1

    公开(公告)日：2018-06-11

    申请号：NO20161954

    申请日：2016-12-09

    Applicant: NEXANS

    Inventor： OPSTAD KETIL ,  OLSEN ESPEN ,  HATLO MARIUS ,  IVERSEN JOHN ,  HÅVIK EIVIND

    IPC: F16L58/10 ,  G01R31/52

    Abstract: A metallic pipe (19) for the transport of fluid, about which is arranged a protective insulating layer (17). An outer conductive or semi-conductive outer layer (18) is extruded about the protective insulating layer (17). According to one aspect of the invention, a method of detecting damage to the protective insulating layer is provided, comprising performing an electrical test where voltage is applied between the metallic fluid pipe (19) and the outer conductive or semi-conductive layer (18). Voltage drops or voltage instability or current flow indicate structural damage to the protective insulation layer (17).

    7.
    发明专利
    未知

    公开(公告)号：ES2993644T3

    公开(公告)日：2025-01-03

    申请号：ES21305312

    申请日：2021-03-12

    Applicant: NEXANS

    Inventor： OPSTAD KETIL ,  SKAUG ATLE

    IPC: E21B41/00 ,  E21B33/035 ,  E21B47/001 ,  E21B47/12

    Abstract: Sistema para comunicarse con un sistema submarino en alta mar conectado a una instalación en tierra mediante un primer cable de comunicación. El sistema comprende un dispositivo flotante adaptado para la comunicación inalámbrica con una instalación de control en alta mar, un segundo cable de comunicación adaptado para conectar el dispositivo flotante a un conector submarino en el primer cable de comunicación, de manera que el dispositivo flotante está en comunicación con la instalación en tierra y la instalación de control en alta mar está en comunicación con el sistema submarino en alta mar a través de la instalación en tierra. (Traducción automática con Google Translate, sin valor legal)

    8.
    发明专利
    未知

    公开(公告)号：BRPI0504207A

    公开(公告)日：2006-05-09

    申请号：BRPI0504207

    申请日：2005-09-29

    Applicant: NEXANS

    Inventor： GRAFF RAGNVALD ,  MJELSTAD EINAR ,  OPSTAD KETIL ,  RAMSTAD BJORN H ,  STENSLAND MORTEN ,  AARSTEIN JON

    IPC: F16L9/19 ,  F16L7/02 ,  F16L11/22

    Abstract: An umbilical for subsea installation has a core of at least two longitudinal elements like cables, tubes and solid and/or hollow filling elements and a cover surrounding the core. At least one of the hollow filling elements is provided with several perforations and the cover is permeable for sea water, thereby allowing seawater to fill the interior of the filler elements as well as the interstices between the cable, tube and the filler elements and the cover when the umbilical is submerged.

    Tool to enable an ROV to handle a subsea connection protector
    10.
    发明专利
    Tool to enable an ROV to handle a subsea connection protector 未知

    公开(公告)号：GB2493253A

    公开(公告)日：2013-01-30

    申请号：GB201211768

    申请日：2012-06-29

    Applicant: NEXANS

    Inventor： OPSTAD KETIL

    IPC: E21B33/03 ,  E21B33/037 ,  E21B33/038 ,  E21B41/04

    Abstract: A tool (1) for the handling by a Remotely Operated Vehicle (ROV) of a protection device (4) provided to protect a subsea electrical or optical fiber connector. The tool has an ROV friendly handle (2) and a connection interface (3) intended to interact with the protection device. The handle may be made of tubular elements arranged together in a same geometrical plan, the connection interface may be a bayonet type connection with opposing slots 14. The connection may also be spring loaded and the protection device may be a dummy connector which is used to protect subsea connections.

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