再述周期注水的油藏数值模拟研究

A SECOND REPORT ON THE STUDY FOR THE CYCLIC FLOODING BY NUMERICAL RESERVOIR SIMULATION

应用油藏数值摸拟方法，研究了各种地质、开发因素对周期注水效果的影响。这些地质因素是：毛管力、原油粘度、垂直渗透率与水平渗透率的比值、渗透率的组合即油层的非均质程度；开发因素是：周期注水的工作制度、连续注水转为周期注水的时机。最后证明了周期注水的唯一缺点是延长了油田开采时间。

By using numerical reservoir simulation, the effects of various geologic and developmental factors for a cyclic flooding is studied. The geologic factors are: capillary force, oil viscosity ,the ratio of vertical permeability to horizontal permeability and permeability combination. The developmental factors are well production schedule of cyclic flooding and proper time of changing from continuous flooding to cyclic flooding. Finally, it demonstrates that the only disadvantage of cyclic flooding is to prolong the developmenT time of the reservoir.