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Detection device and method for ocean non-coking flexible pipeline outer sheath layer damage

A flexible pipeline and damage detection technology, applied in the direction of measuring device, fluid tightness test, machine/structural component test, etc., can solve the problems of large amount of funds, low efficiency, affecting production schedule, etc., to achieve cheap facilities and high efficiency , the effect of simple process

Inactive Publication Date: 2019-07-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But these two methods not only need a lot of money, but also have low efficiency, seriously affecting the production schedule

Method used

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  • Detection device and method for ocean non-coking flexible pipeline outer sheath layer damage
  • Detection device and method for ocean non-coking flexible pipeline outer sheath layer damage
  • Detection device and method for ocean non-coking flexible pipeline outer sheath layer damage

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0026] The present invention provides such Figure 1-5 A device and method for detecting damage to the outer sheath of a marine non-bonded flexible pipeline, including a marine non-bonded flexible pipeline (1), a joint (2), a load resistor (3), a switch (4), and a protective resistor (5), ammeter (6), power supply (7), electric wire (8), sealing plug (21), described marine non-adhesive flexible pipe (1) is connected with joint (2) at both ends respectively , the load resistance (3) communicates with the outer tensile armor wire (12) and the inner tensile armor wire (14) at the tail end of the marine non-bonded flexible pipeline (1), and the positive and negative electrodes of the electric wire (8) are respectively Connect the first electrode (22a) and the second electrode (23...

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Abstract

The invention discloses a detection device and method for ocean non-coking flexible pipeline outer sheath layer damage. The detection device comprises an ocean non-coking flexible pipeline, joints, aload resistor, a switch, a protective resistor, an ammeter, a power supply, an electric wire and a sealing plug, wherein the head end and the tail end of the ocean non-coking flexible pipeline are independently connected with the joint; the load resistor is communicated with an external tensile armored wire and an internal tensile armored wire on the tail end of the ocean non-coking flexible pipeline; the positive electrode and the negative electrode of the electric wire are independently connected with the external tensile armored wire and the internal tensile armored wire on the head end ofthe ocean non-coking flexible pipeline through sealing plug electrodes; and the power supply, the switch, the protective resistor, the ammeter, the external tensile armored wire, the load resistor andthe internal tensile armored wire are connected in series to form a closed loop. When the ocean non-coking flexible pipeline outer sheath layer is damaged, seawater permeates into the pipeline, the load resistor is subjected to short circuit, and the reading of the ammeter changes so as to detect the ocean non-coking flexible pipeline outer sheath layer damage.

Description

technical field [0001] The invention belongs to the field of marine pipelines, and relates to a damage detection device and method for an outer sheath layer of a marine non-adhesive flexible pipeline. Background technique [0002] In recent years, with the rapid development of science and technology, the equipment and facilities for exploiting offshore oil and gas have been continuously upgraded and improved. Extracting oil from the deep sea is an important source for human beings to obtain oil resources. Offshore floating production platform is the most important part of deep sea oil and gas exploitation. Typically, flexible pipe is installed to connect the wellhead to the floating production platform in order to avoid the use of expensive or fragile heave compensators. As a key component of the floating production platform, the flexible pipe undertakes important tasks such as transporting crude oil, transporting gas, water injection, gas injection, and gas lift productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/16G01M3/18
CPCG01M3/16G01M3/182
Inventor 祝效华雷清龙杨闽
Owner SOUTHWEST PETROLEUM UNIV
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