Risers are flexible multilayered pipes formed by an inner flexible metal structure surrounded by polymer layers and spiral wound steel ligaments, also known as armor wires. Since these risers are used to link subsea pipelines to floating oil and gas production installations, and their failure could produce catastrophic consequences, some methods have been proposed to monitor the armor integrity. However, until now there is no practical method that allows the automatic non-destructive detection of individual armor wire rupture. In this work we show a method using magnetic Barkhausen noise that has shown high efficiency in the detection of armor wire rupture. The results are examined under the cyclic and static load conditions of the riser. This work also analyzes the theory behind the singular dependence of the magnetic Barkhausen noise on the applied tension in riser armor wires.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Magnetic non-destructive evaluation of ruptures of tensile armor in oil risers


    Contributors:

    Published in:

    Measurement Science and Technology ; 23 , 4 ; 045604/1-045604/11


    Publication date :

    2012


    Size :

    11 Seiten, 26 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Subsea Risers

    GUSTAVO QUEIROZ HEPNER / LUIZ CARLOS DE LEMOS JUNIOR / DANIEL KARUNAKARAN | European Patent Office | 2022

    Free access

    SUBSEA RISERS

    QUEIROZ HEPNER GUSTAVO / DE LEMOS JÚNIOR LUIZ CARLOS / KARUNAKARAN DANIEL | European Patent Office | 2025

    Free access

    HANDLEBAR RISERS

    DICK BRIAN W / LANGAAS BENJAMIN TAYLOR / FREDRICKSON KEN RAY | European Patent Office | 2022

    Free access

    SUBSEA RISERS

    QUEIROZ HEPNER GUSTAVO / DE LEMOS JÚNIOR LUIZ CARLOS / KARUNAKARAN DANIEL | European Patent Office | 2021

    Free access