WO2007017685A3 - Pipe evaluation apparatus and method - Google Patents

Pipe evaluation apparatus and method Download PDF

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Publication number
WO2007017685A3
WO2007017685A3 PCT/GB2006/002976 GB2006002976W WO2007017685A3 WO 2007017685 A3 WO2007017685 A3 WO 2007017685A3 GB 2006002976 W GB2006002976 W GB 2006002976W WO 2007017685 A3 WO2007017685 A3 WO 2007017685A3
Authority
WO
WIPO (PCT)
Prior art keywords
pipeline
electric current
evaluation apparatus
measurement
condition
Prior art date
Application number
PCT/GB2006/002976
Other languages
French (fr)
Other versions
WO2007017685A2 (en
Inventor
John Middleton
Original Assignee
Tuscan Corrosion Control Ltd
John Middleton
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 Tuscan Corrosion Control Ltd, John Middleton filed Critical Tuscan Corrosion Control Ltd
Priority to GB0802442A priority Critical patent/GB2442909A/en
Publication of WO2007017685A2 publication Critical patent/WO2007017685A2/en
Publication of WO2007017685A3 publication Critical patent/WO2007017685A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/04—Corrosion probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • G01N27/87—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields using probes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The present invention relates to a method and apparatus for monitoring the condition of a buried pipeline. In an embodiment of the invention, there is introduced an alternating electric current to the pipeline, and an amplitude of an electric current signal produced by the current in the pipeline is measured at receivers located along the pipeline. The measurement of electric current amplitude can be compared with reference data to determine whether the condition of the pipeline has changed, for example, through time. In another embodiment, the measurement can be compared with reference data to determine the location of a defect in the insulative coating applied to the pipe.
PCT/GB2006/002976 2005-08-09 2006-08-09 Pipe evaluation apparatus and method WO2007017685A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0802442A GB2442909A (en) 2005-08-09 2006-08-09 Pipe evaluation apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0516353.0 2005-08-09
GB0516353A GB0516353D0 (en) 2005-08-09 2005-08-09 Pipe coating evaluation apparatus and method

Publications (2)

Publication Number Publication Date
WO2007017685A2 WO2007017685A2 (en) 2007-02-15
WO2007017685A3 true WO2007017685A3 (en) 2007-03-29

Family

ID=34984330

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/002976 WO2007017685A2 (en) 2005-08-09 2006-08-09 Pipe evaluation apparatus and method

Country Status (2)

Country Link
GB (2) GB0516353D0 (en)
WO (1) WO2007017685A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025917B4 (en) * 2007-06-02 2009-11-12 Herrenknecht Ag Method and device for checking the casing of a pipeline while it is being drawn into a well filled with liquid
GB2460484B (en) * 2007-11-16 2011-03-23 Advanced Eng Solutions Ltd Pipeline condition detecting method and apparatus
WO2014115039A2 (en) * 2013-01-28 2014-07-31 Aquarius Spectrum Ltd. Method and apparatus for detecting leaks in a pipeline network
CN103411877B (en) * 2013-07-13 2015-07-01 北京工业大学 Buried steel pipeline coating stripping and corrosion test system under stress and stray current coupling effect
CN109884129B (en) * 2019-03-27 2021-11-23 爱德森（厦门）电子有限公司 Device and method for detecting thermite welding quality of steel rail
CN110009890A (en) * 2019-04-19 2019-07-12 济南鑫银博电子设备有限公司 A kind of oil-gas pipeline real-time monitoring system
CN113204985A (en) * 2020-11-06 2021-08-03 中国石油天然气股份有限公司 Oil pipeline damage risk assessment method and device
KR102490213B1 (en) * 2020-12-11 2023-01-18 차강윤 Apparatus and method of dectecting damages for underground pipeline using neo robust automation wireless pipeline current mapper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390836A (en) * 1980-08-11 1983-06-28 Marathon Oil Company Method and apparatus for the detection of pipeline holidays
GB2154325A (en) * 1984-01-11 1985-09-04 Dynalog Electronics Electromagnetic monitoring of elongate conductors, particularly pipes or cables
US4584521A (en) * 1981-10-16 1986-04-22 Battelle Memorial Institute Method of detecting the defects in a dielectric coating at the surface of an electrically conductive underlayer
US5087873A (en) * 1990-04-02 1992-02-11 New York Gas Group Non-invasive, high resolution detection of electrical currents and electrochemical impedances at spaced localities along a pipeline
EP0855595A2 (en) * 1997-01-22 1998-07-29 Kawasaki Steel Corporation Method and apparatus for locating coating faults on buried pipeline
US20040027129A1 (en) * 1999-01-13 2004-02-12 Rock Solid Research Pty. Ltd. Subsurface pipeline inspection probe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390836A (en) * 1980-08-11 1983-06-28 Marathon Oil Company Method and apparatus for the detection of pipeline holidays
US4584521A (en) * 1981-10-16 1986-04-22 Battelle Memorial Institute Method of detecting the defects in a dielectric coating at the surface of an electrically conductive underlayer
GB2154325A (en) * 1984-01-11 1985-09-04 Dynalog Electronics Electromagnetic monitoring of elongate conductors, particularly pipes or cables
US5087873A (en) * 1990-04-02 1992-02-11 New York Gas Group Non-invasive, high resolution detection of electrical currents and electrochemical impedances at spaced localities along a pipeline
EP0855595A2 (en) * 1997-01-22 1998-07-29 Kawasaki Steel Corporation Method and apparatus for locating coating faults on buried pipeline
US20040027129A1 (en) * 1999-01-13 2004-02-12 Rock Solid Research Pty. Ltd. Subsurface pipeline inspection probe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FROST N J: "ELECTROMAGNETIC TECHNIQUES FOR MONITORING PIPELINE COATINGS", CORROSION, NACE, HOUSTON, TX, US, vol. 311, no. 311, 9 March 1987 (1987-03-09), pages 1 - 10, XP008038213, ISSN: 0010-9312 *

Also Published As

Publication number Publication date
WO2007017685A2 (en) 2007-02-15
GB2442909A (en) 2008-04-16
GB0516353D0 (en) 2005-09-14
GB0802442D0 (en) 2008-03-19

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