长庆油田某输油管道腐蚀失效分析
Analysis on Corrosion Failure of an Oil Pipeline in Changqing Oilfield
摘 要
通过化学成分分析、金相检验、力学性能测试、腐蚀形貌观察和腐蚀产物分析等方法，对长庆油田某输油管道的腐蚀失效原因进行了全面研究。结果表明：垢下腐蚀和细菌腐蚀是管道腐蚀失效的直接原因，建议改善水质结垢倾向，采取定期添加阻垢剂和杀菌剂等防腐蚀措施。
腐蚀
垢下腐蚀
细菌腐蚀
防腐蚀措施
pipeline
corrosion
under-scale corrosion
bacterial corrosion
anti-corrosion measure
Abstract
The reasons for corrosion failure of an oil pipeline in Changqing oilfield were investigated comprehensively through chemical composition analysis, metallographic examination, mechanical property testing, corrosion morphology observation and corrosion product analysis. The results show that under-scale corrosion and bacterial corrosion were the direct causes of corrosion failure for the pipeline. Anti-corrosion measures of improving the fouling tendency of water, adding scale inhibitor and fungicide at regular intervals are proposed.
中图分类号 TG172.3 DOI 10.11973/fsyfh-201812013
所属栏目 失效分析
基金项目
收稿日期 2017/7/13
修改稿日期
网络出版日期
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引用该论文: HU Jianguo,LUO Huijuan,ZHANG Zhihao,WANG Jing,CHENG Jie. Analysis on Corrosion Failure of an Oil Pipeline in Changqing Oilfield[J]. Corrosion & Protection, 2018, 39(12): 962
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参考文献
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【6】HASSANI S,HUANG J,VICTOR A C. Inhibited under-deposit CO2 corrosion:small particle silica sand and eicosane paraffin deposits[C]//Corrosion 2017. Houston,DX:NACE International,2017:9564.
【7】FAISAL A. Monitoring of stagnant and low-flow lines in petroleum refineries[C]//Corrosion 2017. Houston,DX:NACE International,2017:9682.
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