油气田微生物腐蚀与防护研究进展

Research Progress of Microbial Corrosion and Protection in Oil and Gas Fields

结合笔者近年来所做的油气田微生物腐蚀领域的工作,以硫酸盐还原菌和铁氧化菌为代表性腐蚀性微生物,系统分析了油气田环境中微生物腐蚀机制及其影响因素。微生物腐蚀行为和机制与微生物的种类、材料、环境因素等密切相关,系统地统计和分析油气田腐蚀性微生物的种类和种群结构是微生物腐蚀研究基础。同时还探讨了缓蚀剂、杀菌剂及缓蚀杀菌剂在油田微生物腐蚀控制过程中存在的问题,最后针对油气田微生物腐蚀与防护研究现状,提出了一些思考和建议。

With sulfate-reducing bacteria(SRB)and iron-oxidizing bacteria(IOB)as the typical corrosive microorganism,MIC mechanism and the main influence factors were systematically analyzed based on the authors’previous works related to the MIC in the oil and gas field.MIC behavior and mechanism were close to the species of microorganism,materials and environmental factors.The systematic statistics and analysis of species and communities of microorganism were the basis of MIC study in the oil and gas field.Problems on application of inhibitors,biocides and their combination in the oil and gas field were also discussed.Lastly,some thinking and suggestions on study of MIC and its prevention in gas and oil fields were put forward according to the current study of MIC and protection.