多重介质储层渗流的等效连续介质模型及数值模拟  

Equivalent continuous medium model and numerical simulation of multimedia reservoir

作　　者：徐轩[1] 杨正明[1] 祖立凯[2] 刘淑波[2] 

机构地区：[1]中国科学院渗流流体力学研究所,河北廊坊065007 [2]吉林油田分公司勘探开发研究院,吉林松原138000

出　　处：《断块油气田》2010年第6期733-737,共5页Fault-Block Oil & Gas Field

基　　金：国家重点基础研究发展规划(973)项目"碳酸盐岩缝洞型油藏开发基础研究"(2006CB202404)资助

摘　　要：由于多重介质岩石本身的复杂性,其渗流规律及数值模拟一直就是一个世界性的难题。应用等效连续介质的思想,建立了孔洞型储层的等效连续介质模型,在此基础上结合裂缝、溶洞型储层的等效模型,形成了较完善的多重介质储层等效渗透率和孔隙度模型。以轮古某油区为例进行了应用分析,并通过孔渗参数的等效进行了数值模拟。数值模拟结果和实际生产特征的对比,验证了等效连续介质模型在多重介质油藏数值模拟中的适用性。Owing to the complexity of multimedia rock itself,its seepage law and numerical simulation are always a cosmopolitan problem.An equivalent continuous medium model is developed based on the theory of continuous medium model.Combined with the equivalent continuous medium model for fractured and vuggy reservoirs,a comparatively perfect equivalent permeability and porosity model of reservoir with multimedia is established.The application analysis is carried out taking an oil pool in Lungu Oilfield as example.A numerical simulation is carried out by using the equivalent parameters of permeability and porosity.The comparison study of the numerical simulation results and the practical production characteristics demonstrates that the equivalent continuous medium model is applicable to the numerical simulation of multimedia reservoir.

关 键 词：多重介质油藏 孔洞型储层 裂缝型储层 溶洞型储层 等效连续介质 数值模拟 

分 类 号：TE319[石油与天然气工程—油气田开发工程]