Oil and gas pipeline monitoring system based on fiber bragg grating

A fiber grating, oil and gas pipeline technology, applied in pipeline systems, measuring devices, optical devices, etc., can solve problems such as inability to timely and accurately deform pipelines

Pending Publication Date: 2021-05-28
TANGSHAN ZHIMING ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a monitoring system for oil and gas pipelines based on optical fiber gratings, which can effectively solve the problem in the prior art that the ground subsidence is used as a monitoring parameter and cannot be accurately deformed in time

Method used

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  • Oil and gas pipeline monitoring system based on fiber bragg grating
  • Oil and gas pipeline monitoring system based on fiber bragg grating
  • Oil and gas pipeline monitoring system based on fiber bragg grating

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Embodiment

[0060] Such as Figure 1-3 As shown, a fiber grating-based oil and gas pipeline monitoring system, the oil and gas pipeline includes a plurality of oil and gas pipeline sections 1, adjacent oil and gas pipeline sections 1 are connected through the interface 2, and the monitoring system includes a fiber grating assembly 7 and a fiber grating modem 10;

[0061] The fiber grating assembly 7 is arranged near the interface 2 and is connected to the outer periphery of the adjacent oil and gas pipe section 1, wherein the outer periphery of the fiber grating assembly 7 and the interface 2 is wrapped by a protective layer of styrofoam;

[0062] The fiber grating modem 10 is connected to the fiber grating assembly 7 through an optical fiber 8 .

[0063] Among them, there are multiple groups of fiber grating components 7, and multiple groups of fiber grating components 7 are arranged in sequence along the extension direction of the oil and gas pipeline, and adjacent fiber grating compone...

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PUM

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Abstract

An oil and gas pipeline monitoring system based on a fiber bragg grating is characterized in that an oil and gas pipeline comprises a plurality of oil and gas pipe sections, the adjacent oil and gas pipe sections are connected through connectors, and the monitoring system comprises a fiber bragg grating assembly and a fiber bragg grating modem; the fiber bragg grating assembly is arranged near the connector and is connected with the periphery of the adjacent oil gas pipe section, and the peripheries of the fiber bragg grating assembly and the connector are wrapped by a polystyrene foam protective layer; and the fiber bragg grating modem is connected to the fiber bragg grating assembly through an optical fiber. When the oil and gas pipeline deforms, the fiber bragg grating assembly can sensitively monitor the deformation, if the oil and gas pipeline deforms, the resonance peak value of the fiber bragg grating assembly moves, and the fiber bragg grating assembly transmits peak value movement information to the fiber bragg grating modem. Therefore, the monitoring system can timely and sensitively monitor the deformation of the oil and gas pipeline, and provides a powerful basis for safety protection.

Description

technical field [0001] The invention belongs to the field of optical fiber sensing, and more specifically relates to an oil and gas pipeline monitoring system based on optical fiber gratings. Background technique [0002] The storage, transportation and processing of oil often require a large number of oil and gas pipelines as the means of oil and gas transshipment. While these oil and gas pipelines provide convenience, they also leave hidden dangers for safety. Every oil and gas pipeline interface may cause leakage. Among the various causes of leakage, the deformation of oil and gas pipelines caused by settlement is the most common, because the accumulation of deformation is a long-term process. During the process, the accumulation of stress often causes the interface to fall off or even the pipeline to break, resulting in serious consequences. [0003] Among the various monitoring methods at present, the ground settlement is often used as the monitoring parameter, which c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/06G01B11/16
CPCF17D5/06G01B11/16
Inventor 丁志国李学文董绍华高峰季长华张科王嘉鹏丁志通陈久松杨智伟王有力杨峥刘大智盛志勇龚占龙张君张运涛
Owner TANGSHAN ZHIMING ELECTRONICS SCI & TECH
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