ND (neutron diffraction) and SANS (small-angle neutron scattering) techniques can assess residual stress in and the microstructure of hydrocarbon pipelines. Forecasting tools based on predictive failure models incorporating these techniques can produce such tangible benfits as improved material selection and pipeline design, greater standardization of material, and more thoroughly examined welding requirements. They can also allow a more comprehensive understanding of ideal wall thickness, taking into account that thinner pipe walls can reduce RS (residual stress) gradients that cause failures while also reducing installation and material costs. Such tools will also help operators prioritize maintenance, repair, and rehabilitation needs. Neutron techniques are also complementary to other testing methods, extending their benefit to pipeline operators by revealing hidden cause-effect relationships leading to pipeline failures and identifying potential weaknesses in protection systems. This article explains how ND and SANS techniques can address problems in current pipeline-integrity assessment methodologies.


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    Titel :

    Neutron diffraction-based tools aid failure forecasting models


    Beteiligte:
    Genta, Pablo (Autor:in) / Rogante, Massimo (Autor:in)

    Erschienen in:

    Oil and Gas Journal ; 106 , 11 ; 56-61


    Erscheinungsdatum :

    2008


    Format / Umfang :

    5 Seiten, 6 Bilder, 5 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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