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根据砂岩孔隙网络的基本流动单元特征 ,引入描述孔隙网络特征的一个新参数即孔隙网络特征参数。该参数是孔隙网络体系宏观特性即渗透率、孔隙度和微观结构特征 (喉道大小、孔喉比、孔隙配位数、喉道迂曲度等因素 )的综合表征 ,一般砂岩的孔隙网络特征参数小于 0 .7。实际的室内实验资料研究表明 ,该参数与储层的原始含油饱和度、残余油饱和度以及水驱油效率、无水采收率等密切相关 ,回归所得方程的相关系数很高。在储层分析、研究与评价中具有重要意义。其作用是目前的孔隙微观结构特征诸参数无法替代的。
According to the basic flow cell characteristics of sandstone pore network, a new parameter describing the characteristics of pore network is introduced, which is the characteristic parameter of pore network. This parameter is the comprehensive characterization of macroscopic characteristics of pore network system, namely, permeability, porosity and microstructure characteristics (throat size, pore throat ratio, pore coordination number, throat tortuosity and other factors). The characteristic parameters of pore network Less than 0 .7. The actual laboratory experimental data show that this parameter is closely related to the original oil saturation, residual oil saturation, water flooding efficiency and water recovery ratio, and the correlation coefficient of the regression equation is very high. In reservoir analysis, research and evaluation of great significance. Its role is that the current micro-pore structure parameters can not be replaced.