An erosion-corrosion study has been performed for Corrosion Resistant Alloys (CRA) in liquid-gas multiphase flow conditions with CO2 saturated brine and sand particles. Pure erosion and erosion-corrosion tests were conducted in a multiphase flow loop at two different temperatures of 76 deg F (24.4 deg C) and 150 deg F (65.6 deg C). Also an electrochemical technique was used to study the effect of pH and temperature on the repassivation behaviour of Super 13Cr-95 (S13Cr) and Stainless Steel Duplex (22Cr) exposed to CO2 saturated brine. A scratch made on a well-defined area of the working electrode (CRA) may be interpreted as similar to the removal of the passive layer due to sand particle impingement. This approach can be used to characterize the effect of sand particle erosion on the corrosion response of a CRA. With this technique, the mechanical process making the scratch and the repassivation process of the CRA can be viewed as nearly separate events. Results are compared to previous data gathered for conventional 13Cr-L80 (13Cr) at similar conditions.


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    Titel :

    Erosion-corrosion of corrosion resistant alloys used in the oil and gas industry


    Weitere Titelangaben:

    Erosionskorrosion korrosionsbeständiger Legierungen, die in der Öl- und Gasindustrie verwendet werden


    Beteiligte:
    Rincon, H.E. (Autor:in) / Shadley, J.R. (Autor:in) / Roberts, K.P. (Autor:in) / Rybicki, E.F. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    19 Seiten, 15 Bilder, 5 Tabellen, 8 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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