AU2017393649A1 - Leakage positioning method based on speed difference - Google Patents

Leakage positioning method based on speed difference Download PDF

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Publication number
AU2017393649A1
AU2017393649A1 AU2017393649A AU2017393649A AU2017393649A1 AU 2017393649 A1 AU2017393649 A1 AU 2017393649A1 AU 2017393649 A AU2017393649 A AU 2017393649A AU 2017393649 A AU2017393649 A AU 2017393649A AU 2017393649 A1 AU2017393649 A1 AU 2017393649A1
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AU
Australia
Prior art keywords
leak
speed difference
sensors
locating
sound
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AU2017393649A
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AU2017393649B2 (en
Inventor
Liping Fang
Hui Han
Qihui Hu
Huafei JING
Yuxing Li
Jie Liang
Cuiwei LIU
Lingya MENG
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China University of Petroleum East China
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China University of Petroleum East China
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Publication of AU2017393649A1 publication Critical patent/AU2017393649A1/en
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Publication of AU2017393649B2 publication Critical patent/AU2017393649B2/en
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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
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means

Abstract

A method of locating a leak based on a speed difference. The method comprises the following steps: establishing a leak locating formula for a pipe segment to be monitored on the basis of a speed difference; installing sound sensors at one end and a middle location of the pipe segment to be monitored, and acquiring signals; defining an operational parameter from a leak point to the two sensors, and computing, according to the parameter, sound speeds of the pipe segment from the leak point to the two sensors, respectively; processing the audio signals acquired by the sensor to obtain a time difference between the times taken for the sound signals to reach the two sensors; and substituting the sound speeds and the time difference into the leak locating formula on the basis of the speed difference to determine a solution of a location of the leak point. The method of locating a leak based on a speed difference can resolve an issue in the prior art in which sensors can only be installed at two sides of a pipe. The method is low in cost, high in safety, and provides strong adaptability for an oil and gas pipe.
AU2017393649A 2017-01-18 2017-11-01 Leakage positioning method based on speed difference Active AU2017393649B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201710034525.0A CN106813108A (en) 2017-01-18 2017-01-18 A kind of leakage locating method based on speed difference
CN201710034525.0 2017-01-18
PCT/CN2017/108920 WO2018133494A1 (en) 2017-01-18 2017-11-01 Method of locating leak based on speed difference

Publications (2)

Publication Number Publication Date
AU2017393649A1 true AU2017393649A1 (en) 2018-11-22
AU2017393649B2 AU2017393649B2 (en) 2020-07-09

Family

ID=59113034

Family Applications (1)

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AU2017393649A Active AU2017393649B2 (en) 2017-01-18 2017-11-01 Leakage positioning method based on speed difference

Country Status (3)

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CN (1) CN106813108A (en)
AU (1) AU2017393649B2 (en)
WO (1) WO2018133494A1 (en)

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WO2021026645A1 (en) * 2019-08-12 2021-02-18 Hifi Engineering Inc. Method of detecting a leak in a fluid conduit

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CN106813108A (en) * 2017-01-18 2017-06-09 中国石油大学(华东) A kind of leakage locating method based on speed difference
CN107218512A (en) * 2017-07-31 2017-09-29 西安科技大学 A kind of mining liquid carbon dioxide conveying device and its leakage monitoring method
CN108758354B (en) * 2018-05-03 2023-09-12 太原理工大学 Heat supply pipeline leakage detection system and method based on infrasonic wave and reference point
CN110131594A (en) * 2019-05-20 2019-08-16 辽宁石油化工大学 A kind of leakage locating method based on ultrasonic velocity variation
US11519812B2 (en) 2019-09-12 2022-12-06 Flow International Corporation Acoustic emissions monitoring of high pressure systems
CN114110441B (en) * 2021-12-02 2023-09-15 西南石油大学 Arrangement method of combustible gas detector of gas transmission trunk valve chamber
CN114811453A (en) * 2022-04-20 2022-07-29 安徽理工大学 Pipeline leakage sound wave positioning method based on delay summation

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JPS516083A (en) * 1974-07-03 1976-01-19 Nippon Kokan Kk Ryutaino morekenchisochi
JPS62297741A (en) * 1986-06-17 1987-12-24 Kensaku Imaichi Detecting method for leaking place of conduit system fluid
US5548530A (en) * 1995-04-24 1996-08-20 Baumoel; Joseph High-precision leak detector and locator
JPH11201812A (en) * 1998-01-08 1999-07-30 Mitsui Eng & Shipbuild Co Ltd Method for measuring sound velocity in fluid piping
CN100383510C (en) * 2005-07-18 2008-04-23 天津大学 Detection of oil and gas pipeline leakage by additional dynamic micro-pressure signal
IT1399026B1 (en) * 2009-09-29 2013-04-05 Eni Spa SYSTEM AND METHOD FOR THE CONTINUOUS DETECTION OF IMPACTS ON CONDUCT FOR THE TRANSPORT OF FLUIDS, PARTICULARLY SUITABLE FOR SUBMARINE PIPES
US20130199272A1 (en) * 2012-02-02 2013-08-08 King Fahd University Of Petroleum And Minerals In-pipe mobile cross-correlation-based system for leak detection
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CN104595729B (en) * 2015-01-15 2015-08-12 中国石油大学(华东) A kind of oil and gas pipeline leakage localization method based on magnitudes of acoustic waves
CN105135216A (en) * 2015-07-30 2015-12-09 云南大红山管道有限公司 Method for locating leakage position of ore pulp conveying pipe
CN105782729A (en) * 2016-05-10 2016-07-20 肖香福 Automatic leak detection device for fuel gas pipeline
CN105953080B (en) * 2016-07-18 2018-07-03 中国石油大学(华东) Soundwave leakage localization method based on homonymy sensor arrangement
CN106195648B (en) * 2016-07-18 2018-12-07 中国石油大学(华东) A kind of experimental test procedures of the equivalent pipe range of reducer pipe
CN106813108A (en) * 2017-01-18 2017-06-09 中国石油大学(华东) A kind of leakage locating method based on speed difference

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021026645A1 (en) * 2019-08-12 2021-02-18 Hifi Engineering Inc. Method of detecting a leak in a fluid conduit

Also Published As

Publication number Publication date
AU2017393649B2 (en) 2020-07-09
CN106813108A (en) 2017-06-09
WO2018133494A1 (en) 2018-07-26

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Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE INVENTION TITLE TO READ LEAKAGE POSITIONING METHOD BASED ON SPEED DIFFERENCE

FGA Letters patent sealed or granted (standard patent)