Every year experts of Energodiagnostika Co. Ltd. and 'Tomsk ETC' Co. Ltd. carry out a large scope of works on non-destructive testing of operated 720 mm, 1020 mm and 1420 mm pipes. Inspection is performed using the metal magnetic memory (MMM) method, as well as specialized instruments and scanning devices (SD) with the purpose of rapid pipes sorting by fit, unfit pipes and pipes requiring additional inspection and repairs. The specific feature of the MMM method, which distinguishes it from other NDT methods, is that it detects stress concentration on defects, i.e. it evaluates the degree of their hazard in relation to the damaging development as well as provides the general stress-strain state assessment of the base metal and welded joints of gas and oil pipelines. As a result of the examination it is necessary to answer the following question: 'Where and when should a damage or an emergency be expected?'. In case such problem is solved, then the possibility of timely replacement is ensured. Application of NCMD combined with the additional inspection of pipelines (UT, eddy-current, etc) in prospect holes, detected by NCMD, is aimed at solution of this very task. At the same time the Customer may have a question: 'Is it possible to extend the results of the direct pipelines inspection in prospect holes to cover the entire length of the route where only NCMD was used?'. The answer to this question displays a degree of NCMD experts responsibility for the inspection results in front of the Customer. The cost of such complex diagnostics depends on the degree of responsibility.


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    Titel :

    Magnetometric diagnostics of gas and oil pipelines


    Weitere Titelangaben:

    Magnetometrische Diagnose von Gas- und Ölpipelines


    Beteiligte:
    Dubov, Anatoly (Autor:in) / Dubov, Aleksandr (Autor:in)


    Erscheinungsdatum :

    2010


    Format / Umfang :

    4 Seiten, 5 Bilder


    Anmerkungen:

    (nicht paginiert)


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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