长庆油田原油输送管道内腐蚀预测分析  

Prediction and Analysis of Internal Corrosion of Crude Oil Pipeline in Changqing Oilfield

作　　者：陈铁 刘冬军 洪广福 闫江涛 马伯泉 卢奇 陈超灵 刘彪 CHEN Tie;LIU Dong-jun;HONG Guang-fu;YAN Jiang-tao;MA Bo-quan;LU Qi;CHEN Chao-ling;LIU Biao(No.3 Oil Production Plant of Changqing Oilfield Branch,Yinchuan 750005,China)

机构地区：[1]长庆油田分公司第三采油厂,银川750005

出　　处：《当代化工》2021年第3期740-743,共4页Contemporary Chemical Industry

基　　金：“十三五”国家科技重大专项,大型油气田及煤层气开发子课题(项目编号:2016ZX05043-002)。

摘　　要：各种管道中水垢腐蚀产物碳酸盐和其他杂质沉积,会对管道形成强腐蚀。为了更好地解决管道内腐蚀问题,运用软件探讨温度、压力、管道直径、二氧化碳分压、管道倾斜角等参数对管道腐蚀速率的影响。结果表明:随着管道直径的增大,管道内的腐蚀程度降低;CO2气体分压的持续增加,对输送管道的腐蚀程度也会不断加重;同层流管道相比,拥塞段管道的腐蚀速率更高。基于以上条件下,对多相流管道相关的腐蚀问题做出详细分析,并且采用腐蚀风险分析方法预测管道可能发生腐蚀的位置。The carbonate and other impurities of scale corrosion products will form strong corrosion in various pipelines.In order to better solve the problem of pipeline internal corrosion,the influence of temperature,pressure,pipeline diameter,carbon dioxide partial pressure,pipeline inclination angle and other parameters on pipeline corrosion rate was discussed by using software.The results showed that with the increase of pipeline diameter,the corrosion degree in the pipeline decreased;With the continuous increase of CO2 partial pressure,the corrosion degree of the pipeline continued to increase;Compared with the laminar flow pipeline,the corrosion rate of the pipeline in the congested section was higher.Based on the above conditions,the corrosion problems related to the multiphase flow pipeline were analyzed in detail,and the corrosion risk analysis method was used to predict the possible corrosion location of the pipeline.

关 键 词：多相流模拟 原油输送管道 内腐蚀 预测分析 

分 类 号：TE832[石油与天然气工程—油气储运工程]