考虑Klinkenberg效应的多孔介质气体渗流模型  

The gas seepage model in porous medium considering Klinkenberg effect

作　　者：茹忠亮 简阔 马国胜 RU Zhongliang;JIAN Kuo;MA Guosheng(Institute of Quality and Technical Supervision and Inspection,Jinchen,Shanxi 048000,China;College of Resource and Energy,Taiyuan University of Science and Technology,Jinchen,Shanxi 048000,China)

机构地区：[1]山西省晋城市质量技术监督检验测试所,山西晋城048000 [2]太原科技大学资源与能源学院,山西晋城048000

出　　处：《中国科技论文》2018年第3期310-313,共4页China Sciencepaper

基　　金：山西省煤层气联合基金资助项目(2016012013);煤与煤系气地质山西省重点实验室开放基金资助项目(MDZ201701);太原科技大学博士科研启动基金资助项目(20162033)

摘　　要：基于渗流力学理论,建立了考虑气体可压缩性及Klinkenberg效应的多孔介质气体渗流数学模型,并给出了两种边界条件下多孔介质气体渗流方程的解析解;采用数值模拟方法对所得结果进行验证。结果表明,Klinkenberg效应可有效增大多孔介质中气体的渗透系数,降低气体压力,对煤层气、致密砂岩气的抽采具有一定的工程指导意义。Based on the theory of seepage mechanics,a mathematical model of gas seepage in porous media is established,which takes into account the compressibility and Klinkenberg effect of gas.Two analytical solutions of gas seepage equation in porous media under the boundary conditions are given.Numerical methods were employed to test and verify the solutions.The results show that the Klinkenberg effect can increase the permeability of porous solid,and decrease the pressure of gas.It can provide significant reference to the coal bed methane engineering.

关 键 词：多孔介质 气体渗流 Klinkenberg效应 煤层气 

分 类 号：TD821[矿业工程—煤矿开采]