低渗岩石非线性渗流机理讨论  

Discussion on the mechanism of percolation in low permeability rocks

作　　者：王恩志[1] 韩小妹[1] 黄远智[1] 

机构地区：[1]清华大学水利水电工程系,北京100084

出　　处：《岩土力学》2003年第S2期120-124,132,共4页Rock and Soil Mechanics

基　　金：国家自然科学基金资助项目(40172084;59779014)。

摘　　要：回顾了单相液体在低渗透饱和岩石的非线性渗流研究某些进展。从岩石孔隙结构、岩石与流体之间的相互作用和流体性质方面介绍了对低速非线性渗流产生机理的不同观点,探讨了孔隙大小、孔喉对启动压力的影响,讨论了界面张力、边界层、耦合渗流、非牛顿流体对非线性渗流形成的作用机制,并对进一步开展低渗透岩石渗流研究提出了建议。This paper reviews the advance in the study of non-linear percolation of one-phase fluids in low permeability saturated rocks first and then introduces various standpoints about the mechanism of low-speed and non-linear percolation in terms of pore structure, interaction between rock and fluid and of fluid characters. It also studies the effect of void size and throat on the starting pressure and discusses the action mechanism of interfacial tention, boundary layer, coupling seepage and non-Newton fluid in the process of generation of non-linear percolation.

关 键 词：水文地质 低渗透岩石 非线性渗流 孔隙结构 界面作用 非牛顿流体 

分 类 号：TU463[建筑科学—结构工程]