摘要
采用边界元方法(BEM),通过求解变系数达西方程,数值模拟了不同温度和压力边界条件下,稠油在九点和二十五点井网时的渗流压力场分布。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,并且注入井与生产井之间的压力耦合效应非常明显。温度的变化使稠油在储层中的渗流阻力和能量损耗发生变化,这种变化导致稠油渗流场的压力发生相应的变化。数值模拟结果可为稠油开采中的井位部署提供定量的理论依据。合理的数值结果表明,边界元方法能够有效处理复杂压力边界条件时的稠油渗流问题。
Pressure field distribution of heavy oil seepage with nine-point and twenty-five-point patterns at different temperatures and pressure boundary conditions is simulated by calculating the Darcy equation with boundary element method (BEM). Numerical simulation results show that the pressure boundary conditions have an important effect on the pressure distribution of heavy oil reservoirs,and the pressure coupling effect between injection wells and production wells is obvious. The variation of temperature causes the changes of seepage resistance and energy loss for heavy oil,which results in the corresponding change of the pressure distribution in the heavy oil seepage field. The numerical simulation results can provide quantitative theoretical basis for oil well deployment and production estimation in heavy oil recovery. The reasonable numerical results show that the boundary element method can effectively deal with the problem of heavy oil seepage with complex pressure boundary conditions.
作者
焦焕
代玉杰
王学慧
鞠启明
JIAO Huan;DAI Yujie;WANG Xuehui;JU Qiming(College of Sciences,Liaoning Shihua University,Fushun Liaoning 113001,China;College of Petroleum Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China)
出处
《石油化工应用》
CAS
2019年第9期38-43,62,共7页
Petrochemical Industry Application
基金
辽宁省教育厅重点攻关项目,项目编号:L2019003
辽河油田项目,项目编号:LHYT-JZCYC-2017-JS-7781
辽河油田项目,项目编号:LHYT-JZCYC-2018-JS-7915
关键词
稠油
边界元方法
渗流
压力分布
heavy oil
boundary element method
seepage
pressure distribution