裂隙多孔介质双重逾渗模型的算法实现  

Algorithm Implementation of Dual-Percolation Model of Fractured Pore Media

作　　者：张旭辉[1] 郑委[1] 刘庆杰[2] 鲁晓兵[1] 

机构地区：[1]中国科学院力学研究所,北京100190 [2]中国石油勘探开发研究院,北京100083

出　　处：《计算物理》2014年第2期191-199,共9页Chinese Journal of Computational Physics

基　　金：国家重点基础研究发展计划(973计划)"温室气体提高石油采收率的资源化利用及地下埋存"资助项目

摘　　要：简要介绍基于孔隙逾渗和裂隙逾渗叠加的双重逾渗模型,阐述模型的原理、算法及其实现过程.初步研究模型的分形特性,认为分形维数D是能够衡量模型连通性的重要参数.最后探讨模型的蒙特卡洛数值计算方法,兼顾计算精度与计算耗时,提出可操作的计算规模.An algorithm and implementation of a dual-percolation model based on bond-percolation theory was introduced which combines pore-network with fracture-network. Monte-Carlo numerical simulation was conducted based on statistical analysis of key parameters, i.e. fracture population densities, Fracture angles, fracture lengths, and pore connectivity possibilities. Fractal dimension was presented to quantify fractal connectivity. Numerical results were in agreement with those of Balberg and Berkowitz et al. Finally, appropriate sample scale was discussed considering both calculation precision and computing time.

关 键 词：裂隙 多孔介质 蒙特卡罗模拟 双重逾渗 连通性 

分 类 号：TU45[建筑科学—岩土工程]