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Device and method for repairing a hose of umbilicals

A technology for umbilical cables and hoses, applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve the problem of not being able to use multiple pipes

Active Publication Date: 2021-06-22
PETROLEO BRASILEIRO SA (PETROBRAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, the latter two methods cannot be used on many kinds of pipes, especially those with smaller diameters

Method used

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  • Device and method for repairing a hose of umbilicals
  • Device and method for repairing a hose of umbilicals
  • Device and method for repairing a hose of umbilicals

Examples

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Embodiment Construction

[0029] First, note that the following description will begin with a preferred embodiment of the present invention. However, as will be apparent to any person skilled in the art, the present invention is not limited to this particular embodiment.

[0030] figure 1 A view of a device for repairing an umbilical hose 3 according to a preferred configuration of the invention is shown.

[0031] More broadly, the device comprises a tubular prosthetic body 1 , and a meltable element 2 adapted to hinder the passage of fluids through the interior of the prosthetic body 1 . The repair body 1 must comprise an outer diameter matching the inner diameter of the hose 3 to be repaired.

[0032] In an alternative configuration, the meltable element 2 comprises a cylinder 22 inside the prosthetic body 1 and a meltable plug 21 with a diameter greater than that of the cylinder 22 .

[0033] Figure 2a to Figure 2d schematically shows figure 1 How the device for repairing the umbilical hose 3 ...

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PUM

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Abstract

The present invention relates to a device for repairing hoses of umbilicals. In this context, the present invention provides a device, for repairing a hose (3) of umbilicals, comprising a tubular repair body (1) and a fusible element (2) suitable for obstructing the passage of a fluid through the inside of the repair body (1), wherein the repair body (1) comprises an outside diameter that coincides with the inside diameter of the hose (3) to be repaired. In addition, the invention further provides a method for repairing a hose (3) of an umbilical comprising the steps of: blocking a first end (31) of a hose (3) of an umbilical; inserting a device for repairing a hose (3) of umbilicals into a second end (32) of the hose (3); injecting a polymer sealant at the second end (32) of the hose (3); using upstream pressure to move the repair device as far as the region of the leak, until the repair body (1) completely covers the opening / leak site (4); flushing the polymer sealant between the internal wall of the hose (3) and the external wall of the device as far as the opening / leak site (4) in the hose (3); solidifying the polymer sealant, thereby immobilizing the tubular repair body (1) inside the hose (3); releasing the first end (31) of the hose (3) of an umbilical; and flushing the fusible element (2) through the inside of the hose (3).

Description

technical field [0001] The invention relates to pipeline and riser technology, subsea equipment technology, and technology for inspecting materials, equipment and corrosion. More particularly, the present invention relates to devices for repairing umbilical hoses. Background technique [0002] In the offshore oil industry, a recurring problem is leakage in subsea valve-activated thermoplastic hydraulic hoses present in electrohydraulic umbilicals caused by inadequate installation procedures that can lead to these The folding of the hoses makes them locally more fragile. [0003] This can lead to the creation of leaks which can be small, affecting the loss of hydraulic fluid, or large leaks which do not even allow maintenance, which in most cases results in lost production. [0004] In the event of umbilical hose failure, there is usually a reserve hose and the activation of the subsea valves can be changed in the subsea facility itself (ANM, manifold or other). [0005] D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/12F16L55/16
CPCF16L55/18F16L55/16F16L55/1645F16L55/165F16L55/163F16L55/164F16L55/10
Inventor H·菲奥伦扎德利玛G·热拉尔多帕彭
Owner PETROLEO BRASILEIRO SA (PETROBRAS)
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