By comparing vertical fracturing well simulation with a streamline model and black oil model , it was pointed out that in simulation of vertical fracturing wells of hydraulic fracturing by using grid amplification there existed many drawbacks , such as grid orientation , calculating times doubled with the increase of grid number , the heterogeneity of model increased as fracture existence , which resulted in difficulties of equation solution and convergence 摘要通过流线模型和黑油模型模拟垂直裂缝压裂井的对比分析，指出了在黑油模型中运用网格放大技术模拟水力压裂垂直裂缝井生产动态存在的诸多缺陷，如网格取向严重、计算时间随网格数目增加而成倍增加、裂缝的存在增加模型的非均质性从而严重加大方程的求解难度，方程求解出现不收敛等。
