油气管道的腐蚀与防护技术研究

国内大多数油田在开采过程中，油井伴生气通常含有成分不等的CO2、H2S等腐蚀性气体，同时由于油气集输系统也不可能完全密闭，造成大气中的O2等腐蚀性气体进入油气生产系统，因此油气生产系统存在的腐蚀类型多种多样。针对油气管道的腐蚀现状，简要综述了CO2腐蚀、H2S腐蚀、氧腐蚀机理及其影响因素。并在此基础上介绍了阴极保护技术、耐蚀材料防腐技术、工程防腐技术、化学防腐技术等几种国内外常用的防腐措施。

Study of the Corrosion and Protection Technology of Oil and Gas Pipeline

In the majority of oil fields in our country, during the process of exploitation, the associated gas of oil wells usual- ly contains CO2, H2S and other corrosive gases with different ingredients. At the same time, because the oil and gas gathering and transportation system cannot be completely sealed, 02 and other corrosive gases in the atmosphere can enter the oil and gas production system, resulting in a wide variety of corrosion concerning the oil and gas production systems. On account of the pres- ent corrosion situation about oil and gas pipelines, this paper is intended to give a brief overview of the CO2 corrosion, H2S corro- sion, oxygen corrosion mechanism with their influential factors, and on this basis it further introduces a negative pole protection technology, a corrosion resistance materials anti-corrosion technology, an engineering anti-corrosion technology, a chemical anticorrosion technology, as well as several commonly used anti-corrosion measures adopted at home and abroad.