Two approaches for subsurface gas leak location using electromagnetic sensing have been investigated by analssis and experiment. Both techniques would make use of the Terrascan, a subsurface radar pipe locator which has been developed under partial GRI sponsorship. The first approach involves detection and discrimination of a characteristics electromagnetic leak effect (ELE) echo surrounding a gas leak. (This ELE is most probablycaused by drying of the soil around the leak). The second approach involves sending a radar signal down the inside of a (steel) pipe distribution, and detecting its leak through the pipe wall at the actual leak hole.


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    Title :

    Development of techniques to pinpoint natural gas leaks from buried pipes with an underground radar system


    Additional title:

    Entwicklung von Verfahren zur Ortsfeststellung von Leckstellen von eingegrabenen Erdgasleitungen mit einem Untergrund-Radarsystem


    Contributors:
    Young, J.D. (author) / Dominek, A.K. (author) / Izadian, J. (author) / Chen Ben Ren (author)

    Published in:

    Publication date :

    1983


    Size :

    123 Seiten


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English




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