刘德新,岳湘安,侯吉瑞
LIU De-xin1,YUE Xiang-an2,HOU Ji-rui2(1.Petroleum Engineering Faculty

• 1:中国石油大学石油工程学院
• 2:中国石油大学提高采收率中心

摘要(Abstract)：

研究者曾对固相表面紧紧吸附的边界流体厚度大小进行过测量或计算,但是由于受实验测试条件的制约,仅给出了某种静态条件下的边界层厚度,无法表征其随水动力学条件的变化特征。为此,以玻璃微珠为实验对象,采用离心法研究固体颗粒表面边界流体层厚度的变化规律。探讨了边界流体层厚度的影响因素及其随驱动压力梯度的变化趋势。实验结果表明,边界流体层厚度是水动力学条件的函数。这一动态特性有助于解释低渗多孔介质中流体的特殊渗流特征。
Some researchers have tested and calculated the thickness of boundary fluids tightly absorbed on the surface of solid facies.But restricted by experimental test conditions,the boundary layer's thickness under a certain static conditions is only presented,so its changed features with hydrodynamic conditions cannot be characterized.Just for the above,the paper takes fine glass ball as experimental object and uses centrifugal method to study the changing laws of thickness of boundary fluids on the surface of solid particle.And furthermore the influential factors and their changing trend with driven pressure gradient of the above thickness have been explored.The experimental results show that the thickness is the function of hydrodynamic conditions.This dynamic feature benefits the interpretation of special filtrational characteristics of the fluids in low-permeability and porous media.

关键词(KeyWords)： 边界流体;驱动压力梯度;水动力学;离心法;渗流特性
Boundary fluid;driven pressure gradient;hydrodynamics;centrifugal method;filtrational characteristic

Abstract:

Keywords:

基金项目(Foundation): 国家重大基础研究前期研究专项(2002CCA00700)

作者(Author): 刘德新,岳湘安,侯吉瑞
LIU De-xin1,YUE Xiang-an2,HOU Ji-rui2(1.Petroleum Engineering Faculty

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