升尺度在求解等价渗透率中的研究现状及发展趋势

为进一步了解升尺度方法在储层研究中的应用。介绍了单相流中的解析方法、求解压力方法、重正化方法、有效介质方法、流线方法以及两相流中的准静态方法和动态方法等升尺度方法的基本原理及求解思路，结合实际应用分析了不同升尺度方法的适用条件和优缺点。阐述了升尺度研究的发展趋势。综合分析认为，升尺度方法对地质建模和油藏数值模拟具有指导作用。

Present state and future trend of upscaling on calculating equivalent permeability

In order to further understand the application of the upscaling techniques in reservoir study, basic principles and solution ideas of upscaling techniques are reviewed in this paper,which include analytical method, pressure - solving method, renormalization method, effective medium method and streamline method used in single phase flow and the pseudostatic state method and dynamic methods used in two- phase flow. The applying conditions, advantages and disadvantages of these different upscaling techniques are discussed based on the practical application. Finally the future trend of the upscaling study are discussed. The upscaling techniques are useful for the geological model buildup and numerical reservoir simulation.