公开(公告)号：DE602006021246D1

公开(公告)日：2011-05-26

申请号：DE602006021246

申请日：2006-02-03

Applicant: NEXANS

Inventor： MJELSTAD EINAR

IPC: H01B7/04 ,  H01B20060101

公开(公告)号：BRPI0600365A

公开(公告)日：2006-10-03

申请号：BRPI0600365

申请日：2006-02-10

Applicant: NEXANS

Inventor： MJELSTAD EINAR ,  IVAR EKEBERG KNUT

IPC: D07B1/12 ,  D07B1/16 ,  F16L11/127 ,  H01B20060101 ,  H01B7/00 ,  H01B7/04

Abstract: Umbilical device, wherein said device has a longitudinal axis (x), and comprises: - at least one elongated electrical cable (4) and/or tube (5) element - an elongated load bearing component (1) along said longitudinal axis (x) and having an external surface (2) including at least one groove (3) disposed along said longitudinal axis (x) and parallel thereof, said component including a central core (1) encompassed by a plastic or elastic layer (2), which is provided with said at least one groove (3), characterizing in that said groove (3) is designed for holding said cable (4) and/or tube (5) element within it, while allowing said cable (4) and/or tube (5) element to move substantially radially in said groove (3) when said umbilical is bent and that said layer (2) consists of several plastic or elastic elements (2a).

公开(公告)号：NO321088B1

公开(公告)日：2006-03-13

申请号：NO20050772

申请日：2005-02-11

Applicant: NEXANS

Inventor： MJELSTAD EINAR

IPC: H01B7/00 ,  F16L11/00 ,  H01B20060101 ,  H01B7/04 ,  H01B7/14 ,  H01B9/00 ,  H01B11/22

Abstract: Subsea umbilical comprising a number of elements such as electrically insulated power conductors (1), fiber optic elements (6), electrical signal cables (7) and fillers (8) within a common outer cover (9,10) characterized in that at least one of said electrical signal cables (7) is enclosed within a dedicated metal tube (7c), and wherein the umbilical is hung off on an offshore platform or the like and the metal tube (7c) containing the electrical signal cable (7) is hung oft separately from the umbilical.

公开(公告)号：NO20044129D0

公开(公告)日：2004-09-29

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.

公开(公告)号：GB2373321A

公开(公告)日：2002-09-18

申请号：GB0130939

申请日：2001-12-24

Applicant: NEXANS

Inventor： MJELSTAD EINAR ,  IVERSEN OYVIND ,  CLASEN TORUNN LUND

IPC: F16L53/00 ,  F24H1/10 ,  H05B3/40 ,  E21B43/01

Abstract: An offshore installation 3 comprises a flowline umbilical installed between a platform and sea bed based template and including at least one insulated electrical cable conductor 2 connected in series with a pipe 1 for carrying fluids such oil or gas to a power supply. The template interconnection between the cable conductor 2 and the pipe 1 is grounded to seawater 4 to provide a single point 5 grounded system such that all the current flows in the cable conductor 2, and substantially no current is transmitted through the sea 4 and the system has zero volts at the template. The power supply may be insulated from ground and the current may be fed from the power supply through the pipe 1 which is electrically insulated, and returns through the cable conductor 2 whereby a voltage level of zero volts is obtained at the template where the system is grounded and substantially all the current is forced through the cable conductor 2 and the pipe 1. The flowline umbilical may comprise a central steel tube for forming the pipe 1 and at least one layer of external concentric insulation material around the pipe as well as a number of elongated elements including at least one power cable conductor 2 located around said insulation layer and an outer protective sleeve.

公开(公告)号：AT505797T

公开(公告)日：2011-04-15

申请号：AT06300110

申请日：2006-02-03

Applicant: NEXANS

Inventor： MJELSTAD EINAR

IPC: H01B7/04 ,  H01B20060101

Abstract: Electrical signal cable, comprising at least two insulated conductors, wherein each of the insulated conductors is arranged in a groove (2) of a longitudinal central element (1) consisting of an elastic material which allows the insulated conductors to move in radial direction when the electrical signal cable is exposed to longitudinal tensile stress.

公开(公告)号：NO20050753A

公开(公告)日：2006-08-14

申请号：NO20050753

申请日：2005-02-11

Applicant: NEXANS

Inventor： MJELSTAD EINAR

IPC: H01B7/04 ,  H01B20060101 ,  H01B7/14 ,  H02G9/00

CPC classification number: H01B7/045

公开(公告)号：NO20044129A

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 BJØRN H ,  STENSLAND MORTEN ,  AARSTEIN JON

IPC: F16L9/19

公开(公告)号：NO20050773D0

公开(公告)日：2005-02-11

申请号：NO20050773

申请日：2005-02-11

Applicant: NEXANS

Inventor： MJELSTAD EINAR ,  EKEBERG KNUT IVAR

IPC: D07B1/12 ,  D07B1/16 ,  F16L11/127 ,  H01B20060101 ,  H01B7/00 ,  H01B7/04 ,  H01B

Abstract: Umbilical device, wherein said device has a longitudinal axis (x), and comprises: - at least one elongated electrical cable (4) and/or tube (5) element - an elongated load bearing component (1) along said longitudinal axis (x) and having an external surface (2) including at least one groove (3) disposed along said longitudinal axis (x) and parallel thereof, said component including a central core (1) encompassed by a plastic or elastic layer (2), which is provided with said at least one groove (3), characterizing in that said groove (3) is designed for holding said cable (4) and/or tube (5) element within it, while allowing said cable (4) and/or tube (5) element to move substantially radially in said groove (3) when said umbilical is bent and that said layer (2) consists of several plastic or elastic elements (2a).

公开(公告)号：BRPI0600362A

公开(公告)日：2007-02-21

申请号：BRPI0600362

申请日：2006-02-09

Applicant: NEXANS

Inventor： MJELSTAD EINAR

IPC: H01B20060101 ,  H01B7/04 ,  H01B9/00 ,  H01B7/14 ,  H02G9/00

Abstract: Subsea umbilical comprising a number of elements such as electrically insulated power conductors (1), fiber optic elements (6), electrical signal cables (7) and fillers (8) within a common outer cover (9,10) characterized in that at least one of said electrical signal cables (7) is enclosed within a dedicated metal tube (7c), and wherein the umbilical is hung off on an offshore platform or the like and the metal tube (7c) containing the electrical signal cable (7) is hung oft separately from the umbilical.