Corrosion inhibition of carbon steel in CO2-containing oilfield produced water in the presence of iron-oxidizing bacteria and inhibitors

• DOI: 10.1016/j.corsci.2016.01.012
• Publication Date: 2016-01-13T19:02:25Z
• Authors: Hongwei Liu; Tingyue Gu; Guoan Zhang; Wei Wang; Shuang Dong; Yufeng Cheng; Hongfang Liu
• Keywords: 02 engineering and technology; 0210 nano-technology; 6. Clean water

Abstract Inhibition effect of an imidazoline derivative, dodecanoic acid and dodecylamine against CO 2 corrosion and microbiologically influence corrosion in a CO 2 -containing oilfield produced water was studied using surface analysis, weight loss and electrochemical measurements. Results indicated that dodecanoic acid could inhibit the adhesion of iron-oxidizing bacteria (IOB) significantly on carbon steel coupons, but had no effect on the planktonic IOB growth. Its inhibition efficiency reached 88.2% after 43 days of incubation. An imidazoline derivative was found to inhibit the adhesion of IOB on the steel surface, and contributed to lower inhibition effect.