一种计算聚合物驱不可进入孔隙体积的新方法

A New Method of Calculating the inaccessible Pore Volumes for Polymer Flooding

根据幂律流体在圆管中层流的基本理论，利用岩石的毛管压力资料，推导出了在考虑或不考虑聚合物分子大小两种情况下聚合物溶液在多孔介质中渗流的流量公式，据此提出了一种新的计算聚合物驱不可进入的孔隙体积的方法，为聚合物驱油设计、聚合物驱油数值模拟中不可进入孔隙体积的确定提供了较为精确的计算方法。

Equations of flow quantity of polymer flowing in porous media,under considering the size of ploymer molecules or not,have been derived according to the basic theory of laminar flow of power law fluid in a round tube and the capillary pressure data of sandstone, by which a new method of calculating the inaccessible pore volumes of polymer flooding has been proposed. The method provides a more accurate calculation for determining inaccessible pore volumes in the design and numerical simulation of polymer flooding.