动态毛管力对低渗油藏开发动态的影响

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油水两相渗流过程中.毛管力不仅是饱和度的函数,还是饱和度变化率的函数;动态毛管力与黏度、渗透率、驱替速率等因素相关。通过建立考虑动态毛管力效应的油水两相渗流数学模型,利用数值模拟软件研究动态毛管力对油藏开发动态的影响.并考察动态毛管力与储层非均质性的关系。结果表明,动态毛管力造成水驱油过程中含水率加速上升.产油量下降.产生阻力效应.同时加剧了油藏的非均质性。
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