多孔介质中指进发育机理及描述方法  

Origination Mechanism and Description of Fingering in Porous Media

作　　者：朱九成[1] 郎兆新[1] 张丽华[1] 

机构地区：[1]石油大学石油工程系

出　　处：《水动力学研究与进展（A辑）》1996年第3期293-297,共5页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金

摘　　要：设计了一套研究多孔介质中非混相指进的实验方法，提出触发混相与非混相流体指进的系统因素。研究了指进的统计自相似性、混沌特性及分形描述方法，并与ＤＬＡ模型对比解释流体饱和度等宏观概念。提出拟波及系数、临界流体饱和度等新概念；应用重正化群理论推导了均匀孔隙介质中流体饱和度与拟波及系数的关系。可用以建立宏观非混相指进模拟的数值模型。An experiment device system to study fluid fingering in porous media is designed. We also summarized the factors triggering miscible and immiscible fingering. Statistical self similarity and chaotic characteristics of fingering is evaluated and fractal description is drawn. Fluid saturation as well as other macroscopic concepts are explained comparing with DLA model. We introduce two new concepts: critical saturation and pseudo conformance. Renormalization Group theory is applied to deduce the relation equation of critical saturation and pseudo conformance, which can be used to construct numerical simulation model of fingering simulation.

关 键 词：渗流 指进 分形几何 重正化群 多孔介质 

分 类 号：O357.3[理学—流体力学]