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Flexible conduit for conveying fluid equipped with low camber s-shaped insert and related method of manufacture

A technology for flexible pipelines and fluid transportation, applied in the field of flexible pipelines, can solve industrial problems such as high pipeline price and cost, and the production of T-shaped profiles is not easy.

Active Publication Date: 2018-11-06
TECH FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Therefore, the T-profiles described in that document are not simple to produce and can lead to industrial problems as well as high pipe price costs

Method used

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  • Flexible conduit for conveying fluid equipped with low camber s-shaped insert and related method of manufacture
  • Flexible conduit for conveying fluid equipped with low camber s-shaped insert and related method of manufacture
  • Flexible conduit for conveying fluid equipped with low camber s-shaped insert and related method of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Throughout the following, the terms "outer" and "inner" are generally understood to be radially relative to the axis A-A' of the duct, the term "outer" is understood to be relatively farther radially away from A-A', and the term " The "inner" extends opposite and radially close to the axis AA' of the duct.

[0057] The first flexible pipe 10 according to the invention is partly composed of figure 1 icon.

[0058] The flexible pipe 10 includes a central section 12 . It comprises end pieces (not visible) at each axial end of the central section 12 .

[0059] refer to figure 1 , the pipe 10 defines a central channel 16 for the circulation of fluids, especially petroleum fluids. A central channel 16 extends along axis AA′ between the upstream and downstream ends of the duct 10 .

[0060] The flexible conduit 10 is intended to be positioned in a facility for producing fluids, especially hydrocarbons, through a body of water (not shown).

[0061] A body of water is, for...

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PUM

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Abstract

A pipe comprising an inner carcass (26) positioned in an inner sheath, the inner carcass (26) comprising a first curved band (31) defining a helical gap (40) open towards a central axis and Helical insert closing the helical gap (40) inwards. The helical insert (28) has a low camber S-shaped cross-section taken on an axial mid-plane comprising an axially outer region (42), a radially intermediate region (44) and an axially inner region ( 46), the axially inner region protrudes from the radially intermediate region (44) axially opposite and radially away from the axially outer region (42), while the axially inner region (46) is at least partially closed Helical gap (40).

Description

technical field [0001] The present invention relates to a flexible pipeline for conveying fluids, comprising: [0002] - an inner polymer sheath defining a fluid circulation channel with a central axis; [0003] - at least one layer of armor, positioned outside the inner sheath; [0004] - an inner carcass positioned in the inner sheath, the inner carcass comprising a first curved band for defining a helical gap open towards the central axis; [0005] - A helical insert for closing the helical gap towards the inside. Background technique [0006] The pipeline is preferably a flexible pipeline of the unbonded type, intended for transporting hydrocarbons through bodies of water, such as seas, seas, lakes or rivers. [0007] Such flexible pipes are produced, for example, according to the normative documents API 17J (Specification for Unbonded Flexible Pipes) and API RP 17B (Recommended Practice for Flexible Pipes) drawn up by the American Petroleum Institute. [0008] The d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/16F16L11/08F16L11/16
CPCF16L9/16F16L11/083F16L11/16
Inventor P·赛舍P·荣
Owner TECH FRANCE SA