缝洞型油藏流体流动数学模型及应用进展

缝洞型碳酸盐岩储层由于储集空间多样、非均质性强，流体流动规律复杂，使得常规的连续介质模型及相应的油藏数值模拟和试井研究方法不能完全适用。从储层介质和流体流动的角度，结合油藏数值模拟和试井分析方面的研究现状，回顾了当前此类油藏流体流动数学模型及应用的现状和发展趋势；系统论述了从等效的双重介质方法、三重介质方法，推广的多重介质方法，到非连续介质方法，再到连续介质和非连续介质结合的方法的适用条件和优缺点；指出双重介质、三重介质及推广的多重介质模型是目前研究和应用的主流，但是存在大的、分布相对不连续的溶洞、裂缝时，需要结合非连续介质场理论的离散裂隙网络模型，并考虑缝洞型油藏中溶洞内流体的真实运动规律，这方面的研究和应用还很不成熟。

CONSTRUCTION OF KNOWLEDGE ORGANIZATION SYSTEM IN REFERENCE AND INFORMATION SERVICE

The conventional continuous media model and the corresponding reservoir numerical simulation,as well as well test method are not suitable for fracture-vug type of carbonate rock reservoir due to its variety of pore spaces,strong inhomogeneity and complex law of fluid flow.In this paper,from the aspect of reservoir media and fluid flow,integrating the research situation of numerical simulation and well test,the current situation and development tendency of fluid flow mathematic model and the application of the kind of reservoir are reviewed,the application conditions and the advantage and disadvantage of equivalent dual-media method,triple-media method,popularized multiple-media method,non-continuous media method and the method combining continuous with non-continuous media are systematically discussed.It is pointed out that dual-media,triple-media and the popularized multiple-media models are the main ones which are applied and studied.But the discrete fracture net model of non-continuous media field should be integrated if there are big and inhomogeneously distributed vugs and fractures,and also,the practical motion law of fluid in vugs in fracture-vug reservoir should be taken into consideration,the research and application in this area are still immature.