CO_2_H_2S环境下钻杆腐蚀机理与防护技术的研究进展_周文要点.pdfVIP

DOI: 10.19289/j.1004-227x.2017.03.002 CO –H S 环境下钻杆腐蚀机理与防护技术的研究进展 2 2 周文，兰伟* ，曹献龙，邓洪达，赵帅 （重庆科技学院冶金与材料工程学院，重庆 401331 ） 摘要：综述了油气钻杆在CO 与H S 单独作用及其共同作用三种体系下的腐蚀行为、类型和机理。论述了在CO –H S 共存腐蚀 2 2 2 2 环境下注缓蚀剂技术、耐腐蚀合金钻杆技术、钻杆内表面耐腐蚀涂层技术以及钻杆表面耐腐蚀镀层技术等油气钻杆防护技术的 应用，并评价了不同防护技术的优缺点。指出了目前油气钻杆抗CO –H S 共存腐蚀的局限性，展望了相应防护技术的发展方向。 2 2 关键词：钻杆；二氧化碳；硫化氢；腐蚀；防护；缓蚀剂；涂层 中图分类号：TG172 文献标志码：A 文章编号：1004 – 227X (2017) 03 – 0131 – 06 Research progress of corrosion mechanism and protection technologies for drill pipe in CO –H S environment 2 2 // ZHOU Wen, LAN Wei*, CAO Xian-long, DENG Hong-da, ZHAO Shuai Abstract: The corrosion behavior, mode and mechanism of oil–gas drill pipe in single CO , single H S and CO –H S 2 2 2 2 composite systems were reviewed. The application of protection technologies for oil–gas drill pipe including addition of corrosion inhibitor, adoption of corrosion-resistant alloy drill pipe, preparation of corrosion-resistant layer on the inner surface of drill pipe by coating and deposition of corrosion-resistant coating on the surface of drill pipe by plating were introduced. The advantages and disadvantages of different protection technologies were evaluated. The limitation of anticorrosion efficiency for oil–gas drill pipe in CO –H S environment was pointed out, and the