CCUS-EOR二氧化碳管道输送流动保障技术界限研究  

Research on the Limit of CCUS-EOR Carbon Dioxide Pipeline Flow Guarantee Technology

作　　者：石健[1] 胡芳问 王启利 付世博 李栋[2] 王玉锐 SHI Jian;HU Fangwen;WANG Qili;FU Shibo;LI Dong;WANG Yurui(The Ninth Oil Production Plant,Daqing Oilfield Co.,Ltd.,Daqing Heilongjiang 163853;Northeast Petroleum University,Daqing Heilongjiang 163318;Labor Services Company,Jilin Petroleum Group Co.,Ltd.,Songyuan Jilin 138000)

机构地区：[1]大庆油田有限责任公司第九采油厂,黑龙江大庆163853 [2]东北石油大学土木建筑工程学院,黑龙江大庆163318 [3]吉林石油集团有限责任公司劳务服务公司,吉林松原138000

出　　处：《化工装备技术》2025年第2期16-20,共5页Chemical Equipment Technology

基　　金：大庆油田有限公司委托技术开发项目(DQYT-0509003-2023-JS-761)。

摘　　要：在超临界CO_(2)管道输送过程中,压力和温度变化会导致CO_(2)发生相态变化,对管道运输安全构成威胁。通过PVTsim和OLGA软件模拟了CO_(2)在管道输送过程中的相态变化情况及其对流动安全的影响。结果表明:含杂质CO_(2)流的临界温度和临界压力分别为31.26℃和7.38 MPa,随着管线延伸,管内流体的温度和压力下降,CO_(2)流从超临界态逐渐转变为气液两相流动状态,在2000 m处,液相流量迅速增大,气相流量相应减小。基于CCUS-EOR技术,对CO_(2)管道输送安全提出了合理化建议。In the process of supercritical CO_(2) pipeline transportation,pressure and temperature changes can cause phase changes in CO_(2),posing a threat to pipeline transportation safety.The phase change of CO_(2) during pipeline transportation and its impact on flow safety were simulated using PVTsim and OLGA software.The results show that the critical temperature and critical pressure of the impurity containing CO_(2) flow are 31.26℃and 7.38 MPa.As the pipeline extends,the temperature and pressure of the fluid inside the pipeline decrease,and the CO_(2) flow gradually transitions from a supercritical state to a gas-liquid two-phase flow state.At 2000 m,the liquid phase flow rate rapidly increases,and the gas phase flow rate correspondingly decreases.Based on CCUS-EOR technology,reasonable suggestions have been proposed for the safety of CO_(2) pipeline transportation.

关 键 词：CCUS 二氧化碳 数值模拟 相态变化 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]