Research on corrosion characteristics and anticorrosion technology of oilfield gathering and transportation pipeline
In order to ensure the safe and normal operation of oil field gathering and transportation pipelines and extend their service life,the corrosion characteristics of a certain oil field gathering and transportation pipeline in the western region were studied.The effects of experimental temperature,pH value of the corrosive medium,CO2 content,H2S content,and chloride ion content on the corrosion rate of steel in the gathering and transportation pipeline were investigated,and the study of adding corrosion inhibitors to prevent corrosion technical measures was carried out.The results indicate that with the continuous increase of experimental temperature and the content of CO2,H2S,and chloride ions in the corrosive medium,the corrosion rate of steel sheets gradually increases,while with the gradual increase of pH value of the corrosive medium,the corrosion rate of steel sheets gradually decreases.The addition of corrosion inhibitor HXR-1 can effectively reduce the corrosion rate of the steel in the target oilfield gathering and transportation pipeline.When its dosage is 80mg·L1,the corrosion rate of the steel sheet can be reduced to 0.022mm·a-1 from 0.672mm·a-1 without the addition of corrosion inhibitor,with a corrosion rate reduction rate of 96.73％.The research results indicate that the corrosion of the gathering and transportation pipelines in the target oilfield is relatively severe,and the addition of corrosion inhibitor HXR-1 can play a good anti-corrosion effect.
gathering and transportation pipelinescorrosion ratecorrosion inhibitorsanticorrosive technologyinfluence factor
万方数据
维普
