nalysis of turbulence on the naphthenic acid corrosion specimens under scouring of 90m/s high flow rate fluid by Fluent indicated that maximum turbulence existed at the center of specimen, the turbulence in other zones decreased nonlinearly with the distance from the center. The average corrosion rate of 20G under the scouring of high flow rate corrosive media mainly depended on the corrosion temperature, the maximum average corrosion rate existed at the temperature of 320C was 2.5 times of the minimum average corrosion rate at temperature of 240C. The influence of turbulence on naphthenic acid corrosion was shown in the local corrosion depth in different turbulence areas, experiments indicated that the ratio between maximum corrosion depth in high turbulence areas and average corrosion depth could reach 4 times or more at all experiment temperatures, so high turbulence could significantly increase local corrosion depth and lead to rapid thinning or perforation of pipelines.

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Published on 01/01/2015

Volume 2015, 2015
DOI: 10.2991/mebe-15.2015.67
Licence: Other

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