Effect of multiphase flow on corrosion of C-steel in presence of inhibitor: a surface morphological and chemical study

    Authors

    S. Seal; K. Sapre; A. Kale; V. Desai; M. Gopal;P. Jepson

    Comments

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    Abbreviated Journal Title

    Corrosion Sci.

    Keywords

    XPS; AES; SEM; steel; CARBON-DIOXIDE; SPECTROSCOPY; ESCA; Materials Science, Multidisciplinary; Metallurgy & Metallurgical; Engineering

    Abstract

    This communication reports the effects of multiphase flow on the corrosion product formed on the surface of 1018 C-steel coupons in oil and gas lines in presence of inhibitor oleic imidazoline. Both bulk and surface analytical techniques reveal the presence of FeCO3, a classic example of CO2 corrosion. While significant changes in the surface morphology with flow condition are monitored by SEM and OM, detailed AES and XPS analysis show the deterioration of inhibitor chemistry as the flow is increased from full pipe (Fr = 0) to slug flow (Fr = 6). XPS shakeup satellite lines in the N (1s) spectra have been useful in the analysis. (C) 2000 Elsevier Science Ltd. All rights reserved.

    Journal Title

    Corrosion Science

    Volume

    42

    Issue/Number

    9

    Publication Date

    1-1-2000

    Document Type

    Article

    Language

    English

    First Page

    1623

    Last Page

    1634

    WOS Identifier

    WOS:000088277800010

    ISSN

    0010-938X

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