Experiments have been carried out in a high-temperature, high-pressure rotating electrode (HTHPRE) apparatus under 40 conditions to cover the spectrum of conditions found in oil and gas production pipelines in Western Canada. Each experiment was conducted over a period of 100 h. During the experiments, the electrodes were monitored using electrochemical noise technique. After the experiments, the surfaces of the samples were analyzed using scanning electron microscopy (SEM). Potentiodynamic polarization (PP) experiments were also conducted under the same 40 conditions. Based on the electrochemical noise, SEM, and PP data, it was found that the probability of the initiation of pitting corrosion increased with an increase inflow rate, temperature, chloride ion concentration, and anodic polarization, and decreased with an increase in oil wettability, hydrogen sulfide (H2S) partial pressure, carbon dioxide (COJ partial pressure, total pressure, bicarbonate concentration, sulfate concentration, and cathodic polarization. The variation in the probability of initiation of pitting corrosion has been explained based on the type of surface layers formed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effect of surface layers on the initiation of internal pitting corrosion in oil and gas pipelines


    Additional title:

    Einfluss von Oberflächenschichten auf den Beginn innerer Pittingkorrosion bei Öl- und Gas-Rohrleitungen


    Contributors:
    Papavinasam, S. (author) / Doiron, A. (author) / Revie, R.W. (author)

    Published in:

    Corrosion, Houston ; 65 , 10 ; 663-673


    Publication date :

    2009


    Size :

    11 Seiten, 4 Bilder, 8 Tabellen, 32 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Corrosion modeling - 1. Model predicts internal pitting corrosion of oil, gas pipelines

    Papavinasam, Sankara / Doiron, Alex / Revie, R. Winston et al. | Tema Archive | 2007


    Model to predict internal pitting corrosion of oil and gas pipelines

    Papavinasam, S. / Doiron, A. / Revie, R.W. | Tema Archive | 2010


    Effect of field operational variables on internal pitting corrosion of oil and gas pipelines

    Demoz, A. / Papavinasam, S. / Omotoso, O. et al. | Tema Archive | 2009


    Markov chain modelling of pitting corrosion in underground pipelines

    Caleyo, F. / Velazquez, J.C. / Valor, A. et al. | Tema Archive | 2009


    Predictive model for pitting corrosion in buried oil and gas pipelines

    Velazquez, J.C. / Caleyo, F. / Valor, A. et al. | Tema Archive | 2009