Methanogenic archaea and sulfate reducing bacteria induce severe corrosion of steel pipelines after hydrostatic testing
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第13期
论文作者：Enze Zhou Jianjun Wang Masoumeh Moradi Huabing Li Dake Xu Yuntian Lou Jinheng Luo Lifeng Li Yulei Wang Zhenguo Yang Fuhui Wang Jessica A.Smith
文章页码：72 - 83
摘 要：Complex interactions within a microbial consortium can induce severe corrosion in oil pipelines. This study investigated the mechanism of microbiologically influenced corrosion(MIC) that led to failure of X52 steel pipelines after hydrostatic testing. Laboratory hydrostatic testing with untreated lake water and underground water were used to simulate and study the events that led to the actual corrosion.Biofilm analysis, weight loss, and several electrochemical measurements demonstrated rapid corrosion rates after hydrostatic testing. Analysis of microbial community structures revealed that methanogenic archaea and sulfate reducing bacteria(SRB), introduced by the hydrotest water, formed corrosive biofilms on X52 steel coupon surfaces that induced severe pitting.
Enze Zhou1,2，Jianjun Wang2，Masoumeh Moradi1,2，Huabing Li1，Dake Xu1,2，Yuntian Lou3，Jinheng Luo4，Lifeng Li4，Yulei Wang5，Zhenguo Yang6，Fuhui Wang1,2，Jessica A.Smith7
1. Shenyang National Laboratory for Materials Science, Northeastern University2. Key Laboratory for Anisotrotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University3. Corrosion and Protection Center, University of Science and Technology Beijing4. CNPC Tubular Goods Research Institute5. CNPC Pipeline Construction Administration Department6. Institute of Metal Research, Chinese Academy of Sciences7. Department of Biomolecular Sciences, Central Connecticut State University
摘 要：Complex interactions within a microbial consortium can induce severe corrosion in oil pipelines. This study investigated the mechanism of microbiologically influenced corrosion(MIC) that led to failure of X52 steel pipelines after hydrostatic testing. Laboratory hydrostatic testing with untreated lake water and underground water were used to simulate and study the events that led to the actual corrosion.Biofilm analysis, weight loss, and several electrochemical measurements demonstrated rapid corrosion rates after hydrostatic testing. Analysis of microbial community structures revealed that methanogenic archaea and sulfate reducing bacteria(SRB), introduced by the hydrotest water, formed corrosive biofilms on X52 steel coupon surfaces that induced severe pitting.
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