基于Fluent的稠油多相渗流压力场数值模拟  

Numerical simulation of multiphase seepage pressure field of heavy oil based on Fluent

作　　者：鞠启明 代玉杰 崔洪志[3] Ju Qiming;Dai Yujie;Cui Hongzhi(College of Sciences,Liaoning Shihua University,Fushun Liaoning 113001,China;College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China;Jinzhou Oil Production Plant,PetroChina Liaohe Oilfield Company,Linghai Liaoning 121209,China)

机构地区：[1]辽宁石油化工大学理学院,辽宁抚顺113001 [2]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001 [3]中国石油辽河油田分公司锦州采油厂,辽宁凌海121209

出　　处：《石油化工》2020年第12期1182-1187,共6页Petrochemical Technology

基　　金：辽宁省教育厅科学研究重点攻关项目(L2019003);辽河油田项目(LHYT-JZCYC-2018-JS-7915,LHYT-JZCYC-2017-JS-7781)

摘　　要：应用SCDM软件建立稠油多相渗流的三维物理模型,用ICEM进行离散化处理,选择描述多相流的Mixture和k-ε模型,用Fluent软件对不同孔隙率、不同边界压力和不同黏滞阻力系数条件下的稠油渗流场压力分布进行数值模拟。数值模拟结果表明,压力边界条件对稠油渗流压力场的分布有重要影响,注入井与生产井之间的压力耦合效应很明显;孔隙率对稠油渗流压力场的影响效果随压力的变化而变化;稠油和蒸汽的黏滞系数对稠油渗流场的分布影响显著;Fluent软件可以处理复杂压力边界条件的稠油渗流问题。The 3D physical model of multiphase seepage in heavy oil is established by using SCDM and is discretized with ICEM,mixture and k-εmodel were chosen in order to describe the characteristics of multiphase seepage,the pressure distribution of heavy oil seepage field was simulated by using Fluent software under different porosity,boundary pressure and viscous resistance coefficient.The numerical simulation results indicate that pressure boundary condition has an important influence on the distribution of heavy oil seepage pressure,and the pressure coupling effect between injection well and production well is obvious.The effect of porosity on the heavy oil seepage pressure field changes with the variation of pressure.The viscosity coefficients of heavy oil and water vapor have significant effects on the distribution of heavy oil seepage field.Reasonable numerical results show that Fluent can solve heavy oil seepage problem with complex pressure boundary conditions.

关 键 词：多相流 稠油 渗流 孔隙率 边界压力 

分 类 号：TE345[石油与天然气工程—油气田开发工程]