【摘要】 用无因次分析法对低渗透岩心的渗流实验数据进行分析 ,得出低渗透油层渗流规律为 :低于亚临界雷诺数时为非线性流 ,高于亚临界雷诺数时为线性流。应用边界层理论 ,从微观角度进一步研究这一特殊渗流现象 ,结果与渗流实验完全一致。根据对某低渗透油田实例的油井生产曲线模拟计算 ,分析出多孔介质、流体及开发方式对渗流过程的影响是 :渗透率越低 ,原油黏度越大 ,非线性渗流区域越大。图 3参 6更多还原

【Abstract】 In order to determine the rule of fluid flow in a low permeability reservoir, an experiment based on the non dimensional analysis and micro boundary theory has been conducted. Comparing the data obtained from experiment work with the result gained from analysis, we could draw out the conclusion: Nonlinear flow happens under low velocity. The calculation and analysis of an example has demonstrated the influence of porous media, fluid and development methods on the flow rate. The conclusion proposed here is of importance for low permeability oilfield development.更多还原