公开(公告)号：US10999898B2

公开(公告)日：2021-05-04

申请号：US14944867

申请日：2015-11-18

Applicant: ITP SA

Inventor： Christian Geertsen ,  Philippe Marchal

IPC: H05B3/56 ,  H05B3/46 ,  F16L9/18 ,  F16L53/38

Abstract: The invention relates to a heated pipe for the transportation of a fluid comprising: a fluid transportation casing, one or several electric heating cables each arranged along the transportation casing, each cable comprising an electrically conductive core arranged in an electrically insulating and thermally conductive sheath, a thermally insulating material applied onto said heating cable or cables and onto the transportation casing, an external casing arranged around the thermally insulating material and made integral with the transportation casing in a sealed manner so as to define at least one annular space enabling its pressure to be reduced, the pipe additionally comprises means to reduce partial electrical discharges between said heating cable or cables and the transportation casing.

公开(公告)号：US10451209B2

公开(公告)日：2019-10-22

申请号：US15920021

申请日：2018-03-13

Applicant: ITP SA

Inventor： Jean-Aurélien Damour ,  Christian Geertsen ,  Pierre Ollier

IPC: F16L55/26 ,  E21B17/00 ,  E21B36/00 ,  E21B47/06 ,  G01K1/02 ,  G01L19/08 ,  G01N19/10 ,  F16L59/065 ,  F16L9/18 ,  G01L11/04 ,  F17D5/06 ,  G01M3/24 ,  F16L59/147

Abstract: The invention relates to a segment of pipe-in-pipe pipeline comprising an annulus under reduced pressure sealed and delimited by a metallic internal pipe inserted into a metallic external pipe and provided with a measurement system to determine in a non-intrusive manner the state of the annulus, the measurement system being composed of a first internal emitter/receiver assembly placed inside the annulus and cooperating with means to measure a first physical quantity such as pressure, hygrometry or temperature inside the reduced pressure annulus and a second external emitter/receiver assembly arranged to the exterior of the segment and facing said first assembly.

公开(公告)号：US09822905B2

公开(公告)日：2017-11-21

申请号：US14564239

申请日：2014-12-09

Applicant: ITP SA

Inventor： Christian Bonigen ,  Christian Geertsen

IPC: F16L1/12 ,  F16L1/225 ,  F16L1/235 ,  F16L1/23 ,  F16L1/26 ,  F16L1/18 ,  F16L59/065 ,  F16L1/19 ,  B63B35/03 ,  F16L1/16 ,  F16L59/14

CPC classification number: F16L1/18 ,  B63B35/03 ,  F16L1/165 ,  F16L1/19 ,  F16L1/235 ,  F16L59/065 ,  F16L59/143

Abstract: The invention concerns a process and a device for laying a subsea pipeline according to the J-lay or S-lay method wherein straight sections are mounted onshore, dried and degassed then closed by plugs. The sections are loaded on a pipe-laying ship, are separated from their plugs before the welding. At the welding of each bulkhead a short pumping is operated to reduce the pressure in the part of the annulus located between the two last bulkheads and then the opening leading to the annulus are sealed.