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Method and device for locating oil pipeline leaks

A technique for the location of oil pipelines and leak points, which is applied in the field of detection

Active Publication Date: 2021-01-12
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention provides a method and device for locating oil pipeline leakage points, the main purpose of which is to solve the existing problems of how to effectively monitor pipeline multi-point leakage and ensure safe and stable production

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  • Method and device for locating oil pipeline leaks
  • Method and device for locating oil pipeline leaks
  • Method and device for locating oil pipeline leaks

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Embodiment Construction

[0043]Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] The embodiment of the present invention provides a method for locating oil pipeline leaks, such as figure 2 As shown, the method includes:

[0045] 101. When the monitored flow signal at the head end is not equal to the flow signal at the end, collect the ultrasonic sound velocity at the head end of the oil pipeline and the ultrasonic sound velocity at the end.

[0046] In the embodiment of the present invention, when monit...

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Abstract

The invention discloses a positioning method and a positioning device of oil pipeline leakage points, and relates to the detection technology field. The positioning method and the positioning device of the oil pipeline leakage points manly aim at solving the problem how to effectively perform multipoint leakage monitoring on a pipeline to guarantee smooth and steady running of production. The positioning method of the oil pipeline leakage points includes: when a head end flow signal and a tail end flow signal which are monitored show unequal flow rate, collecting ultrasonic sound velocity of the head end of the oil pipeline and ultrasonic sound velocity of the tail end of the oil pipeline; using an LED (local mean decomposition) algorithm and a WT (wavelet transformation) algorithm to extract ultrasonic sound velocity inflection points respectively corresponding to the ultrasonic sound velocity of the head end and the ultrasonic sound velocity of the tail end; computing time differentof the ultrasonic sound velocity inflection points, and iteratively computing multiple position data corresponding to the time different according to a preset objective function expression; and confirming positions of the oil pipeline leakage points from the position data.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method and device for locating oil pipeline leakage points. Background technique [0002] Pipeline leakage generally exists in industrial processes such as energy, petroleum, and chemical industry. Since pipelines are an efficient, safe, and economical means of transportation, the existing leak detection and location methods generally detect leakage at a certain point. However, in actual fluid delivery pipelines, when the local pipeline section pressure is too high or affected by corrosion, wear, vibration, etc., sometimes there will be two or even multiple leaks. Suspension of transportation inspection will cause waste of resources. Therefore, how to effectively monitor multi-point leakage of pipelines to ensure safe and stable production is an urgent problem to be solved in current fluid transportation pipeline technology. Contents of the invention [0003] In view of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D5/06
CPCF17D5/06
Inventor 郎宪明张欣冉王佳政王扬苏颖刘金秋石雨庚
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY