埋地输油管道泄漏污染物流动特性模拟研究  

Simulation Study on Flow Characteristics of Leakage Pollutants in Buried Oil Pipeline

作　　者：伍咏德 WU Yong-de(Aonan Oil Production Area of Ninth Oil Production Plant of Daqing Oilfield Co.,Ltd.,Daqing 163000,China)

机构地区：[1]大庆油田有限责任公司第九采油厂敖南采油作业区,黑龙江大庆163000

出　　处：《管道技术与设备》2022年第3期28-31,共4页Pipeline Technique and Equipment

摘　　要：为研究埋地输油管道泄漏后污染物的流动情况,通过Fluent数值模拟了埋地输油管道泄漏问题,研究了污染物在常规多孔介质模型和孔隙尺度介质模型中的流动特性。结果表明:在常规多孔介质模型中,污染物泄漏后从泄漏口向四周发散扩散,而在孔隙尺度介质模型中,污染物向两侧迁移更加明显,在改变孔隙尺度介质中粒子的排列方式后,泄漏污染物的流动会受到明显影响。由此表明,在常规多孔介质中,污染物受重力、浓度差、毛细作用力、表面张力等因素影响较大,而在孔隙尺度介质中,污染物的流动受到孔隙结构和粒子排列方式的影响更强。In order to study condition of the flow of pollutants after leakage of buried oil pipeline,the leakage problem of buried oil pipeline was numerically simulated by Fluent,and the flow characteristics of pollutants in porous medium model and pore scale medium model were studied.The results show that after the leakage of pollutants in conventional porous media,pollutants diffuse from the leakage port to the surrounding,while in pore scale media model,the migration of pollutants to both sides is more obvious.After changing the arrangement of particles in pore scale media,the flow of leakage pollutants is significantly af⁃fected.It shows that in conventional porous media,pollutants are greatly affected by gravity,concentration difference,capillary force,surface tension and other factors,while in pore scale medium,the flow of pollutants is more affected by pore structure and particle arrangement.

关 键 词：埋地管道 污染物泄漏 多孔介质 孔隙尺度介质 流动特性 数值模拟 

分 类 号：TE832[石油与天然气工程—油气储运工程]