随着新能源的不断开发,石油天然气的节能环保、低成本等特点得到了越来越多人的亲睐,使用的范围也变得更加的广。但是在天然气使用过程中输送管道的腐蚀现象变得越来越严重,造成管道腐蚀的原因也多种多样,如硫化氢等伴生气体、管道所处环境变化等,使得人们生活存在着重大的安全隐患甚至经济损失。基于此,石油天然气管道的防腐工作变得越来越重要与迫切,本论文针对管道腐蚀的原因及防腐技术进行重点分析与阐述。 With the continuous development of new energy sources, the characteristics of energy saving, environmental protection and low cost of petroleum and natural gas have attracted more and more people’s attention and their scope of application has become more extensive. However, the corrosion of pipeline during the use of natural gas is getting more and more serious. There are many reasons for pipeline corrosion, such as the accompanying gas such as hydrogen sulfide, the environment change of the pipeline, etc., which makes people’s lives have significant safety Hidden or even economic losses. Based on this, the anticorrosive work of oil and gas pipelines becomes more and more important and urgent. This thesis focuses on the causes of pipe corrosion and the anticorrosive technologies.