WO2008017276A1 - Système de détection et d'alarme à fibres optiques réparties pour un oléoduc et un gazoduc - Google Patents

Système de détection et d'alarme à fibres optiques réparties pour un oléoduc et un gazoduc Download PDF

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Publication number
WO2008017276A1
WO2008017276A1 PCT/CN2007/070414 CN2007070414W WO2008017276A1 WO 2008017276 A1 WO2008017276 A1 WO 2008017276A1 CN 2007070414 W CN2007070414 W CN 2007070414W WO 2008017276 A1 WO2008017276 A1 WO 2008017276A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber grating
fiber
grating mirror
optical
pipeline
Prior art date
Application number
PCT/CN2007/070414
Other languages
English (en)
Chinese (zh)
Inventor
Linping Ma
Sushan Dong
Zhuanyun Guo
Fanyong Meng
Qiang Zhang
Dachuan Zhou
Original Assignee
Linping Ma
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linping Ma filed Critical Linping Ma
Publication of WO2008017276A1 publication Critical patent/WO2008017276A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
    • G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
    • G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]

Definitions

  • the invention belongs to the technical field of optical fiber sensing and oil and gas pipeline alarming, and particularly relates to a distributed optical fiber oil and gas pipeline alarm sensing system.
  • the first step in drilling oil and gas pipelines is to dig up the soil around the pipeline, and there will be vibration during the excavation process.
  • the second step is to punch the oil and gas pipeline, which will cause vibration.
  • the problems of the prior art are as follows: First, the distributed optical fiber sensing device optical time domain reflectometer (0TDR) and optical frequency domain reflectometer (0FDR) are not suitable for the oil and gas pipeline warning device because they are sensitive to vibration. On-line detection; Second, the MZ interferometer has a high false alarm rate, difficult positioning, and practical application of distance. Third, the negative pressure detection of the oil and gas pipeline alarm cannot provide an early warning of the incident.
  • TDR optical time domain reflectometer
  • FDR optical frequency domain reflectometer
  • Low reflectivity fiber grating mirrors are provided in several fibers along the pipeline, the number of which is determined by the length of the pipeline.
  • the sideband filter is a sideband filter with the function of selecting the sideband order.
  • Figure 4 is a schematic diagram of the fiber grating mirror without external disturbance.
  • a high reflectance fiber grating mirror 4 and a series of low reflectance fiber grating mirrors 5 are disposed in the fiber laid along the pipeline, and the pitches thereof are: high reflectance fiber grating mirror 4 and optical circulator 3 spacing are L0, the distance between the high reflectance fiber grating mirror 4 and the first low reflectance fiber grating mirror is L1, and the distance between the first low reflectance fiber grating mirror and the second low reflectance fiber grating mirror is L2, the rest and so on.
  • Design and debug demodulation detection equipment which consists of high coherence length laser, optical circulator, photoelectric detector, amplifier, sideband filter, fast Fourier transformer, spectrum analyzer, computer.
  • the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent change, and modification to the above embodiments in accordance with the technical spirit of the present invention belong to the present technology. Within the scope of the program.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Alarm Systems (AREA)

Abstract

L'invention concerne un système de détection et d'alarme à fibres optiques réparties pour un oléoduc et un gazoduc, où la lumière cohérente émise par un laser ajustable en longueur très cohérent (1) est entrée vers l'extrémité d'entrée (a) d'un circulateur optique (3) via une fibre optique de détection (2), et émise vers un réflecteur en treillis de fibres optiques à réflectivité élevée (4) et un réflecteur en treillis de fibres optiques à réflectivité basse (5) à partir de la première extrémité de sortie (b) du circulateur optique (3), puis renvoyée vers le circulateur optique (3), pour être ensuite émise vers un photodiode (6) à partir de la seconde extrémité de sortie (c) du circulateur optique (3) ; les informations nécessaires sont analysées par l'intermédiaire d'une transformée de Fourier rapide (8), d'un filtre de bande latérale (9) et d'un analyseur de spectre (10) après que les signaux provenant de la photodiode (6) ont été amplifiés par un amplificateur (7), et finalement affichées et éclairées par l'intermédiaire d'un système de commande d'ordinateur (11) et d'une alerte rapide (12).
PCT/CN2007/070414 2006-08-04 2007-08-04 Système de détection et d'alarme à fibres optiques réparties pour un oléoduc et un gazoduc WO2008017276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200620026938.1 2006-08-04
CN 200620026938 CN200979076Y (zh) 2006-08-04 2006-08-04 分布式光纤油气管线警戒传感装置

Publications (1)

Publication Number Publication Date
WO2008017276A1 true WO2008017276A1 (fr) 2008-02-14

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CN (1) CN200979076Y (fr)
WO (1) WO2008017276A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102062730A (zh) * 2010-12-20 2011-05-18 天津亿利科能源科技发展股份有限公司 一种基于光纤传感的埋地油气管线外腐蚀实时监测装置
CN102242869A (zh) * 2011-06-21 2011-11-16 北京一轻研究院 基于双Sagnac光纤干涉仪的管道泄漏监测装置及方法
CN102313141A (zh) * 2011-09-16 2012-01-11 电子科技大学 一种管道泄露检测用光纤振动传感系统
CN102352963A (zh) * 2011-10-09 2012-02-15 中国计量学院 基于混合干涉型分布式光纤的水下长输管道泄漏检测装置
CN102434783A (zh) * 2011-10-09 2012-05-02 中国计量学院 基于相位生成载波解调的光纤水下长输管道泄漏检测装置
CN101255951B (zh) * 2008-02-25 2012-06-27 郑州大学 提高油气管道泄漏和入侵检测的分布式光纤传感器性能的方法
CN103912792A (zh) * 2014-04-18 2014-07-09 青岛厚科化学有限公司 基于光纤光栅的套管式地下管道泄漏预警系统及其方法
CN108468950A (zh) * 2018-05-17 2018-08-31 钦州学院 一种基于光纤传感的天然气立管预警系统及预警方法
GB2571540A (en) * 2018-02-28 2019-09-04 Craley Group Ltd Improvements in or relating to the monitoring of fluid pipes
GB2596257A (en) * 2015-03-06 2021-12-22 Silixa Ltd Method and apparatus for optical sensing
CN113984182A (zh) * 2021-11-04 2022-01-28 国家石油天然气管网集团有限公司 一种油气管线分布式横向振源距离定位方法
CN114234056A (zh) * 2021-11-30 2022-03-25 武汉理工大学 一种分布式光纤声波传感管道泄漏监测系统与方法

Families Citing this family (4)

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CN1908505B (zh) * 2006-08-04 2012-01-04 天津爱天光电子科技有限公司 分布式光纤输油气管线警戒传感系统
CN101266024B (zh) * 2008-05-09 2012-03-14 于晋龙 基于偏振检测的分布式光纤输油气管线早期预警系统
CN104459677B (zh) * 2014-12-23 2017-02-22 苏州江奥光电科技有限公司 一种复合游标式光栅及其测距系统
CN106764463B (zh) * 2017-03-08 2019-01-29 武汉理工大学 一种基于光纤光栅传感的管道泄漏、腐蚀在线监测装置及方法

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US6212306B1 (en) * 1999-10-07 2001-04-03 David J. F. Cooper Method and device for time domain demultiplexing of serial fiber Bragg grating sensor arrays
CN1414283A (zh) * 2002-12-10 2003-04-30 西安交通大学 基于分布式光纤传感器的油气管线泄漏智能在线监测方法
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CN1527028A (zh) * 2003-06-18 2004-09-08 中国石油天然气集团公司 一种用于油气管线检测的光纤光栅传感测试系统
CN1581607A (zh) * 2003-11-06 2005-02-16 中国科学院长春光学精密机械与物理研究所 一种波长可调谐的双包层光纤激光器
CN1614359A (zh) * 2004-12-07 2005-05-11 天津大学 实现多通道光纤光栅传感装置高灵敏度测量的方法
CN1908505A (zh) * 2006-08-04 2007-02-07 天津爱天光电子科技有限公司 分布式光纤输油气管线警戒传感系统

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US5943124A (en) * 1995-12-28 1999-08-24 Bicc Public Limited Company Monitoring of an optical line
JP2000258190A (ja) * 1999-03-09 2000-09-22 Mitsubishi Cable Ind Ltd ファイバグレーティングを用いたセンサおよび物理量測定方法
US6212306B1 (en) * 1999-10-07 2001-04-03 David J. F. Cooper Method and device for time domain demultiplexing of serial fiber Bragg grating sensor arrays
US6785004B2 (en) * 2000-11-29 2004-08-31 Weatherford/Lamb, Inc. Method and apparatus for interrogating fiber optic sensors
CN1414283A (zh) * 2002-12-10 2003-04-30 西安交通大学 基于分布式光纤传感器的油气管线泄漏智能在线监测方法
CN1527028A (zh) * 2003-06-18 2004-09-08 中国石油天然气集团公司 一种用于油气管线检测的光纤光栅传感测试系统
CN1581607A (zh) * 2003-11-06 2005-02-16 中国科学院长春光学精密机械与物理研究所 一种波长可调谐的双包层光纤激光器
CN1614359A (zh) * 2004-12-07 2005-05-11 天津大学 实现多通道光纤光栅传感装置高灵敏度测量的方法
CN1908505A (zh) * 2006-08-04 2007-02-07 天津爱天光电子科技有限公司 分布式光纤输油气管线警戒传感系统

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101255951B (zh) * 2008-02-25 2012-06-27 郑州大学 提高油气管道泄漏和入侵检测的分布式光纤传感器性能的方法
CN102062730A (zh) * 2010-12-20 2011-05-18 天津亿利科能源科技发展股份有限公司 一种基于光纤传感的埋地油气管线外腐蚀实时监测装置
CN102062730B (zh) * 2010-12-20 2013-06-19 天津亿利科能源科技发展股份有限公司 一种基于光纤传感的埋地油气管线外腐蚀实时监测装置
CN102242869A (zh) * 2011-06-21 2011-11-16 北京一轻研究院 基于双Sagnac光纤干涉仪的管道泄漏监测装置及方法
CN102313141A (zh) * 2011-09-16 2012-01-11 电子科技大学 一种管道泄露检测用光纤振动传感系统
CN102352963A (zh) * 2011-10-09 2012-02-15 中国计量学院 基于混合干涉型分布式光纤的水下长输管道泄漏检测装置
CN102434783A (zh) * 2011-10-09 2012-05-02 中国计量学院 基于相位生成载波解调的光纤水下长输管道泄漏检测装置
CN102352963B (zh) * 2011-10-09 2013-08-07 中国计量学院 基于混合干涉型分布式光纤的水下长输管道泄漏检测装置
CN103912792A (zh) * 2014-04-18 2014-07-09 青岛厚科化学有限公司 基于光纤光栅的套管式地下管道泄漏预警系统及其方法
GB2596257A (en) * 2015-03-06 2021-12-22 Silixa Ltd Method and apparatus for optical sensing
GB2596257B (en) * 2015-03-06 2022-06-08 Silixa Ltd Method and apparatus for optical sensing
US11719560B2 (en) 2015-03-06 2023-08-08 Silixa Ltd. Method and apparatus for optical sensing
GB2571540A (en) * 2018-02-28 2019-09-04 Craley Group Ltd Improvements in or relating to the monitoring of fluid pipes
GB2571540B (en) * 2018-02-28 2020-10-28 Craley Group Ltd Improvements in or relating to the monitoring of fluid pipes
US11506562B2 (en) 2018-02-28 2022-11-22 Craley Group Limited Monitoring of fluid pipes
CN108468950A (zh) * 2018-05-17 2018-08-31 钦州学院 一种基于光纤传感的天然气立管预警系统及预警方法
CN113984182A (zh) * 2021-11-04 2022-01-28 国家石油天然气管网集团有限公司 一种油气管线分布式横向振源距离定位方法
CN114234056A (zh) * 2021-11-30 2022-03-25 武汉理工大学 一种分布式光纤声波传感管道泄漏监测系统与方法
CN114234056B (zh) * 2021-11-30 2023-11-10 武汉理工大学 一种分布式光纤声波传感管道泄漏监测系统与方法

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