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Flexible pipe for transporting fluid and associated method

A flexible tube and fluid technology, applied in the field of flexible tubes, can solve problems such as complicated operation, increased cost, and large storage area

Active Publication Date: 2016-10-05
TECH FRANCE SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, storing T-profiles on drums can cause certain problems
[0021] Firstly, the shape of the profile makes it difficult to store and unwind, especially due to the risk of "drag marks"
[0022] In addition, it is necessary to have a large inventory of drums, which increases costs, complicates operations, and requires large storage areas

Method used

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  • Flexible pipe for transporting fluid and associated method
  • Flexible pipe for transporting fluid and associated method
  • Flexible pipe for transporting fluid and associated method

Examples

Experimental program
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Effect test

Embodiment Construction

[0055] In the rest of this document, the terms "outer" and "inner" are generally understood radially with respect to the axis AA' of the pipe, the term "outer" is understood as being relatively radially farther from the axis AA' and The term "inner" is understood as being relatively radially closer to the axis AA' of the tube.

[0056] The first flexible pipe 10 according to the present invention is figure 1 partially shown in.

[0057] The flexible pipe 10 includes a central section 12 . It comprises end pieces (not shown) at each axial end of the central section 12 .

[0058] refer to figure 1 , the tube 10 delimits a central channel 16 for the flow of a fluid, advantageously an oil fluid. A central channel 16 extends along axis AA' between the upstream and downstream ends of the tube 10 .

[0059] The coiled pipe 10 is designed to be positioned through a body of water (not shown) in a fluid production facility, particularly for hydrocarbons.

[0060]A body of water is...

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Abstract

This flexible pipe for transporting fluid comprises a polymer internal sheath for limiting a fluid flow passage of central axis (A-A '); at least one armour layer arranged on the outside of the internal sheath; an internal carcass (26), arranged in the internal sheath, the internal carcass (26) comprising a first folded tape (31) limiting a helical gap (40) opening towards the central axis (A-A '). The pipe comprises a helicoidal insert (28) of T-shaped cross section comprising a leg (50) inserted in the helicoidal gap (40) and two wings (52) projecting one on each side of the leg (50) to close off the helicoidal gap (40) toward the inside. The helicoidal insert (28) is formed of a second folded tape.

Description

technical field [0001] The invention relates to a flexible pipe for conveying fluids, comprising: [0002] an inner polymeric sheath defining a fluid circulation path having a central axis; [0003] at least one shroud disposed outside said inner sheath; [0004] an internal framework positioned within said internal sheath, said internal framework comprising a first curved band defining a helical void emerging toward said central axis; [0005] A helical insert with a T-shaped cross-section comprising a stem inserted into a helical void and two wings protruding on either side of the stem to close said helical void inwardly. Background technique [0006] The pipe is preferably a flexible pipe of the unbonded type designed to transport hydrocarbons through a body of water such as an ocean, sea, lake or river. [0007] Such flexible pipes are made, for example, according to the standard documents API 17J (Specification for Unbonded Flexible Pipe) and API RP 17B (Recommended ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08F16L55/04
CPCF16L55/041F16L11/083
Inventor P·赛舍P·荣
Owner TECH FRANCE SA
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