硫化氢对气田钢材的腐蚀影响及防治

Impact of hydrogen sulfide corrosion to steels in gas field and the preventive measures

李臣生 赵斌 褚跃民 孟令祥 孙庆梅 杨泽华

中原油田分公司采油工程技术研究院 ，河南 濮阳 457001 中原油田分公司采油三厂，河南 濮阳 457001

金属腐蚀造成的经济损失占国民经济总产值的1%~4%，每年腐蚀的钢材占我国生产总量的20%，有30%的钢材、设备、工具因腐蚀而报废。由于腐蚀造成的经济损失每年高达300亿元以上，占国民生产总值的4%。高含硫化氢气田的井况防治技术是油田勘探开发工程中的重要一环，防治技术的好坏关系到油田的产能建设和开发速度。针对气田硫化氢对钢材的伤害及影响因素、预防措施、修复技术进行了探讨。

Metal corrosion has caused economic losses of 1% to 4% of the national economic output value, the annual eroded steel in China accounted for 20 percent of the total production, and 30 percent of the steel, equipment, tools have been scrapped due to corrosion. There is 300 billion yuan of losses due to corrosion each year in china, which accounts for 4 percent of China’s GDP. Protection of gas wells with high H2S is an important work in the exploration and development process, and the performance quality of the technical has a close relation to oilfield capacity building and development speed. The paper discussed the harm and impact factors of the H2S in gas field to steel materials, as well as preventive measures and repairing techniques.