孔隙空间拓扑结构对油水两相渗流影响研究  

Study of Effects of Pore Space Topological Structure on Water-oil Two Phase Flow

作　　者：苏娜[1] 于春生[1] 李星[1] 

机构地区：[1]中石化河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《重庆科技学院学报（自然科学版）》2013年第3期50-54,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：油气藏地质及开发工程国家重点实验室开放基金项目(PLN1129)

摘　　要：岩石孔隙空间拓扑结构是影响岩石中流体多相渗流性质的重要因素之一,近期研究发现具有相同配位数的不同岩心,其多相渗流性质不尽相同。通过对比规则和等价拓扑结构网络模型中相对渗透率曲线形态,探究决定孔隙空间拓扑结构的关键因素。研究结果表明:配位数的空间分布更能有效地表征孔隙空间拓扑结构,且对油水相对渗透率的影响随系统亲油性的增强而相对减弱。The rock pore space topological structure is one of the important factors affecting the fluid multiphase flow properties.Recent study found that different core with the same coordination number is different in the multiphase flow property.By comparing the relative permeability curve shape of oil-water two phase flow,this paper researches the key factors which decide the pore space topological structure characteristics.The results of the study show that space distribution features of coordination number can be more effectively display the pore space topology structure,and the influence of the oil-water relative permeability becomes weak with the enhancement of system lipophilicity.

关 键 词：两相渗流 拓扑结构 配位数 网络模型 润湿性 

分 类 号：TE319[石油与天然气工程—油气田开发工程]