相似理论在微观物理模拟实验中的应用可行性分析

USE OF THE SIMILARITY THEORY IN TWO FLUID-PHASE DISPLACEMENT EXPERIMENTS

靳彦欣 张立红 赵丽

JIN Yan-xin ZHANG Li-hong ZHAO Li

石油大学, 山东, 东营, 257061 2. 中国石化, 胜利石油管理局, 胜采一矿, 山东, 东营, 257051

University of Petroleum, Dongying, Shandong 257061, China 2. Shengli Oil Production Factory, Shengli Petroleum Administration, SINOPEC, Dongying, Shandong 257051, China

在油田开发后期,微观物理模拟实验是研究剩余油形成机理的一种重要手段,蚀刻模型由于其仿真性好,设计灵活方便,从而得到较为广泛的应用。相似理论是进行模型实验所遵循的基本理论,蚀刻模型除了要与模拟岩心保持孔隙结构相似外,还应遵循其它相似准则。该文从渗透率和渗流速度两个不同的角度推导了蚀刻模型的另外两个相似准则,在这两个相似准则的指导下,蚀刻模型的设计更加灵活,实验结果也应该能更好反映实际情况。

Experiment of two fluid phase displacements is very important for the study of formation mechanism of remaining oil. The photoetched pore micromodel has widely been used because of its good similarity and its convenient design. According to the similarity theory, the photoetched pore micromodel should have not only the similar pore structure with the target core, but also the other similar parameters such as permeability and percolation velocity. Two similarity rules were suggested in accordance with the above parameters. Following the rules, the photoetched pore micromodel will have more flexibility in design and will produce a more precise experiment result.

国家973重点发展规划项目(1999022508).

https://doi.org/10.11781/sysydz200304410