实际油藏往往是某方向渗透率大于其它方向渗透率，若按均质油藏模式部署井网，会严重影响开发效果。在简化（地下流体为单相，油层等厚，水平最大主渗透率方向与最小主渗透率方向垂直，注采平衡）的条件下，建立了存在方向渗透率地层条件下流体流动基本微分方程；并给出了平面中两个水平主渗透率方向互相垂直条件下方程的解；推导出势函数及流函数表达式。采用推导出的表达式，分别计算了五点法和九点法井网注水井排与最大主渗透率方向夹角为０°、２２．５°和４５°时的流线分布，求出相应油井见到注入水时间及波及系数。结果表明，非均质渗透性油藏２种布井方式的油井见到注入水时间和波及系数都小于均质油藏；五点法井网以注水井排与最大主渗透率方向一致时注水效果好，九点法井网以注水井与边井连线方向与最大主渗透率方向夹角为４５°时注水效果好。图４参２（郭海莉摘 Actual reservoirs tend to have permeability greater than that in other directions in a certain direction. If the well pattern is deployed in a homogeneous reservoir mode, the development effect will be seriously affected. Under the conditions of simplification (underground fluid is single-phase, reservoir thickness is equal, the horizontal maximum principal permeability is perpendicular to the minimum principal permeability and the balance between injection and production), the basic differential equation of fluid flow is established for the formation with directional permeability; The solution to the equation of the two horizontal principal permeability directions in the plane perpendicular to each other is given. The potential functions and the expressions of the flow functions are deduced. Using the derived expressions, the distribution of streamlines at five-point and nine-point well patterns with the maximum main permeability of 0 °, 22.5 ° and 45 ° was calculated and the corresponding Oil see injection time and spread factor. The results show that the wells with two kinds of wells in heterogeneous permeability reservoirs can see that the injected water time and wave propagation coefficient are both less than that of the homogeneous reservoirs. The five-point well pattern is filled with water when the well row coincides with the direction of maximum principal permeability The effect is good, the water injection effect is good when the angle between the connection direction of the injection well and the side well and the direction of the maximum principal permeability of the nine-point method well pattern is 45 °. Figure 4 Reference 2 (Guo Haili Abstract