The properties of corrosion product film formed on carbon steel pipelines under saltwater-oil-CO2 multiphase flow are examined by AC impedance methods. Experiments are performed in a 101.6 cm I.D., 10 m long pipeline. Experimental results show that there are two reactions on the steel surface in saltwater-oil mixture. One is charge transfer, and the other is diffusion. By calculation of charge transfer resistance, Rt, and Warburg impedance coefficient, sigma, it is found that, Rt in saltwater-oil mixture is much higher than that in saltwater. In saltwater-oil mixture, Rt and sigma increase with immersion time. It is suggested that the porous corrosion film occurs on the surface of the steel, and that the film becomes compact when the immersion time increases. The longer the exposure time, the more compact the film, resulting in that the corrosion rate becomes lower.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effect of oil in multiphase flow on corrosion product film in large horizontal pipeline


    Additional title:

    Der Einfluß von Öl in Mehrphasenströmungen auf den Korrosionsproduktfilm in großen horizontalen Rohrleitungen


    Contributors:
    Hong, T. (author) / Gopal, M. (author) / Jepson, W.P. (author)

    Published in:

    Materials and Corrosion ; 51 , 6 ; 439-443


    Publication date :

    2000


    Size :

    5 Seiten, 8 Bilder, 2 Tabellen, 14 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






    Liquid holdup in large diameter horizontal multiphase pipelines

    Maley, L.C. / Jepson, W.P. | Tema Archive | 1998


    Flow management: steady-state and transient multiphase pipeline simulation

    Danielson, T.J. / Brown, L.D. / Bansal, K.M. | Tema Archive | 2000


    Pipeline bundles model implemented into a multiphase flow model

    Duret, E. / Lebreton, E. / Heintze, E. et al. | Tema Archive | 2000