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根据质量守恒定律,从固液分子力作用出发,结合岩心的孔喉分布特征,建立考虑固壁与流体分子作用的动态网络模型.利用模型模拟得到不同时间步的孔隙压力变化,分析了固液分子间力、喉道半径、润湿性等因素对剩余油饱和度分布和水驱相渗曲线的影响.研究结果表明,考虑固液分子间力作用时剩余油饱和度增大,岩石骨架与流体间的分子作用在多孔介质的孔隙流动中不可忽略.
According to the law of conservation of mass, starting from the effect of solid-liquid molecular force and combining with the pore-throat distribution characteristics of core, a dynamic network model considering the action of solid wall and fluid molecules is established. The pore pressure changes of different time steps are simulated by model simulation, Intermolecular force, throat radius, wettability and other factors on residual oil saturation distribution and water-flooding phase-infiltration curve.The results show that when considering the effect of solid-liquid intermolecular force remaining oil saturation increases, the rock skeleton and The molecular interaction between fluids can not be ignored in the pore flow of porous media.