集气管道CO_2内腐蚀模拟研究  

Simulation of the CO_2 Corrosion Inside of Gas Gathering Pipelines

作　　者：王坤[1] 李庆[2] 云庆[2] 陈宏建[2] Wang Kun Li Qing Yun Qing Chen Hongjian

机构地区：[1]中国石油大学(北京)油气管道输送安全国家工程实验室/城市油气输配技术北京市重点实验室 [2]中国石油天然气股份有限公司规划总院

出　　处：《油气田地面工程》2017年第1期47-49,共3页Oil-Gas Field Surface Engineering

摘　　要：为了预测某集气管道的腐蚀状况,减少因腐蚀引起的穿孔、泄漏等事故,针对某气田WA段含CO_2集输管道多相混输的特点,筛选出合适的CO_2内腐蚀预测模型。使用OLGA软件建立了管道内部CO_2内腐蚀模型并对其进行模拟,分析了管道沿线压力、温度、流态变化情况,经与管道实际运行数据进行对比,验证了模型用于模拟管道运行状况的准确性。通过模拟结果及与实际腐蚀速率的比较得出,OLGA软件可以很好地模拟管道CO_2内腐蚀状况,可为制定管道清管方案提供技术参考。In order to forecast the corrosion feature of a gas pipe and reduce the perforation and leakage accident, this paper selected the appropriate CO2 corrosion prediction mode/according to the characteristics ofmultiphase transportation contains CO2 WA segment in a gas field. The pipeline internal CO2 corrosion model is established and simulated by using OLGA software and the changes along the pipeline pressure, temperature and flow are analyzed. Through comparing with the actual operation data, the accuracy of the mode/ used to simulate the operating condition is verified. From the simulation results and by comparing with the actual corrosion rate, OLGA can simulate the CO2 corrosion condition in this pipeline well, and management of pipeline are proposed reasonably.

关 键 词：集气管道 CO2内腐蚀 OLGA 模拟 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]