APPLICATION OF ELECTROCHEMICAL NOISE TECHNIQUE IN MULTIPHASE FLOW

This paper presents the experimental results for CO2 corrosion of carbon steel in a 101.6 mm ID multiphase flow loop using electrochemical noise measurement. ZRA mode electrochemical noise technique with three nominally identical electrodes was utilized to study the corrosion processes and inhibitor performance in the stationary slug flow. Comparable corrosion rates were obtained from EN, EIS, and ER tests, suggesting EN technique with a “noisy ” RE a practical measurement for investigating CO2 corrosion in multiphase slug flow condition. Results from EN signals showed that addition of 100 ppm inhibitor could retard the corrosion process to a satisfied level for stationary slug flow pattern at Fr 6 in the flow loop tests