摘要
低渗透裂缝性砂岩油藏由于其裂缝分布的不均匀、不连续的特点 ,其自身不能形成其渗流网络。因此 ,基于灰岩基础上的双重介质渗流理论不再适用。笔者打破将裂缝性油藏处理成双重介质的传统做法 ,建立适合低渗透裂缝性砂岩储层的等效连续介质渗流模型。其中等效介质的渗透张量的确定通过流量相等的原则 ,毛管力和相对渗透率曲线通过渗吸平衡时的毛管力相等原则来确定。通过实例计算表明 。
Because of the non-even, non-continuous feature of the low permeability sand-stone reservoir, it is impossible to form seepage net in this kind reservoir. So, the dual-media seepage theory can not be used in it. The author adopted the continuum theory and erected the continuum media seepage theory that adapted the low permeability sand stone reservoir. The method is different to the traditional method in that it considered the reservoir is dual media. The equivalent seepage tensor is determined by the equal flow fundamental. The equivalent capillary pressure and relative permeability are determined by equal capillary pressure fundamental. From the compute example, the model was proved to be reasonable.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
2000年第z1期158-161,180,共5页
Journal of Chongqing University
关键词
低渗透储层
等效连续介质
双重介质
相对渗透率
毛管力曲线
low permeability reservoir
equivalent continuum media
dual-media
relative permeability
capillary pressure curve
作者简介
刘建军(1972-),男,河南襄城人,中国科学院渗流力学研究所博士生.主要从事储层流固耦合理论及应用研究.
