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研究化学采油聚合物-表面活性剂二元复合驱中的毛管数曲线和相渗曲线。以毛管数与残余油关系实验曲线为基础完善了毛管数曲线数学表达式和以毛管数值为变量复合驱相渗透曲线的数学表达式,并成功用于化学驱油模拟软件中。经算例测试表明,采用新的毛管数曲线表达式和相渗曲线表达式的数值模拟更能反映复合驱采油机理和规律,适应现代采油技术的需求。
The capillary number and phase permeation curve of the chemical recovery polymer-surfactant binary composite flooding were studied. Based on experimental curves of capillary number and residual oil, mathematical expressions of capillary curve number and capillary permeability curve were developed and successfully used in chemical flooding simulation software. The experimental results show that the numerical simulation of the capillary flow curve expression and the phase-infiltration curve expression can better reflect the mechanism and law of the compound flooding and oil recovery and meet the requirements of the modern oil recovery technology.