公开(公告)号：US10890279B2

公开(公告)日：2021-01-12

申请号：US15770328

申请日：2016-10-26

Applicant: TECHNIP FRANCE

Inventor： Thomas Epsztein ,  Nadège Brusselle-Dupend ,  Xavier Lefebvre

IPC: F16L11/08 ,  G01M3/28 ,  G01M3/04 ,  B29C48/09 ,  B29C53/58

Abstract: The present application relates to a method for pressurizing the inner flow space of an underwater flexible pipe intended for transporting hydrocarbons, comprising the following steps: a) providing a flexible pipe comprising a reinforcing layer made up of a short-pitch winding of at least one metal wire with noncontiguous turns around a thermoplastic polymer sheath defining an inner space, then b) filling the inner space of the flexible pipe with an oil, then c) increasing the inner pressure Pi of the flexible pipe to at least 10 MPa, the inner pressure being exerted by said oil, then d′) maintaining the inner pressure Pi of the flexible pipe at a pressure of at least 10 MPa for a time D of at least one minute, characterized in that said oil has a kinematic viscosity at 40° C., measured according to the ASTM D445 standard, of more than 10 mm2/s. This method makes it possible to reduce, or even prevent, the appearance of cavitation and crazing on the polymer sheath.

公开(公告)号：US09448209B2

公开(公告)日：2016-09-20

申请号：US14812776

申请日：2015-07-29

Applicant: IFP ENERGIES NOUVELLES ,  TECHNIP France

Inventor： Marie-Hélène Klopffer ,  Xavier Lefebvre ,  Yann Nicolas ,  Patrice Jung

IPC: G01N29/04 ,  F16L57/06 ,  F16L11/08 ,  F16L58/10 ,  F17D5/06 ,  G01M3/24 ,  G01N29/07 ,  F16L57/00 ,  F16L11/04

CPC classification number: G01N29/043 ,  F16L11/083 ,  F16L57/00 ,  F16L57/06 ,  F16L58/1009 ,  F16L2011/047 ,  F17D3/01 ,  F17D5/06 ,  G01M3/24 ,  G01M3/243 ,  G01N29/07 ,  G01N2291/0245 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/2634

Abstract: Method for testing a pipe for carrying hydrocarbons. The pipe has at least one internal sealing sheath made of polymer material, incorporating elements of reactive compound capable of reacting with corrosive gases contained in the hydrocarbons which diffuse radially through the sheath. The reaction forms a first layer, extending radially from the internal surface, in which the elements of reactive compound have reacted with the gases. A second layer, extends between the first layer and the external surface, in which the elements of reactive compound have not yet reacted with the gases. The method uses ultrasound to determine the position of an interface between the first and second layers to measure the progression of the diffusion of the gases through the sheath.

Abstract translation: 用于测试用于运输碳氢化合物的管道的方法。 管道具有由聚合物材料制成的至少一个内部密封护套，其中包含能与径向扩散穿过护套的烃中的腐蚀性气体反应的反应性化合物元素。 反应形成第一层，其从内表面径向延伸，其中反应性化合物的元素已经与气体反应。 第二层在第一层和外表面之间延伸，其中反应性化合物的元素尚未与气体反应。 该方法使用超声波来确定第一和第二层之间的界面的位置，以测量气体通过护套的扩散的进展。

公开(公告)号：US20150330864A1

公开(公告)日：2015-11-19

申请号：US14812776

申请日：2015-07-29

Applicant: IFP ENERGIES NOUVELLES ,  TECHNIP France

Inventor： Marie-Hélène Klopffer ,  Xavier Lefebvre ,  Yann Nicolas ,  Patrice Jung

IPC: G01M3/24 ,  G01N29/04 ,  F16L57/06 ,  G01N29/07

CPC classification number: G01N29/043 ,  F16L11/083 ,  F16L57/00 ,  F16L57/06 ,  F16L58/1009 ,  F16L2011/047 ,  F17D3/01 ,  F17D5/06 ,  G01M3/24 ,  G01M3/243 ,  G01N29/07 ,  G01N2291/0245 ,  G01N2291/0289 ,  G01N2291/044 ,  G01N2291/2634

Abstract: Method for testing a pipe for carrying hydrocarbons. The pipe has at least one internal sealing sheath made of polymer material, incorporating elements of reactive compound capable of reacting with corrosive gases contained in the hydrocarbons which diffuse radially through the sheath. The reaction forms a first layer, extending radially from the internal surface, in which the elements of reactive compound have reacted with the gases. A second layer, extends between the first layer and the external surface, in which the elements of reactive compound have not yet reacted with the gases. The method uses ultrasound to determine the position of an interface between the first and second layers to measure the progression of the diffusion of the gases through the sheath.

Abstract translation: 用于测试用于运输碳氢化合物的管道的方法。 管道具有由聚合物材料制成的至少一个内部密封护套，其中包含能与径向扩散穿过护套的烃中的腐蚀性气体反应的反应性化合物元素。 反应形成第一层，其从内表面径向延伸，其中反应性化合物的元素已经与气体反应。 第二层在第一层和外表面之间延伸，其中反应性化合物的元素尚未与气体反应。 该方法使用超声波来确定第一和第二层之间的界面的位置，以测量气体通过护套的扩散的进展。