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影响油藏水驱来收率的因素很多，大体上可分为地质因素和开发因素两大类。地质因素中，油藏渗透率纵向非均质分布是影响油藏水驱采收率的一个重要因素，它可用微旋回性、分布类型、变异系数、平均渗透单、垂直渗透率与水平渗透率之比（Kv／Kh）以及渗透车具体排列位置6个参数来描述。数值模拟研究结果表明：反旋回型油藏的水艇采收率高于正旋回型油藏；变异系数越大，油藏的水驱采收率越低；Kv／Kh位对正、反旋回型油藏水驱采收率的影响规律不同；最大渗透率层位置是影响正旋回型油藏水驱来收率的重要因素；不同分布类型油藏的水驱采收率随微旋回住、变异系数、Kv／Kh值以及最大渗透率层位置的变化而变的规律基本相同。
There are many factors that affect the yield of reservoir water flooding, which can be divided into two major categories: geological factors and development factors. Among geologic factors, longitudinal heterogeneity of reservoir permeability is an important factor affecting the waterflooding recovery of reservoirs. It can be classified into three types by using micro-cyclism, distribution type, coefficient of variation, average single permeability, vertical permeability and horizontal permeability Ratio (Kv / Kh) and the specific arrangement of infiltration vehicles 6 parameters to describe. The numerical simulation results show that the reverse recovery type reservoir has a higher recovery rate of the watercraft than that of the normal circulation reservoir. The larger the variation coefficient is, the lower the waterflood recovery efficiency of the reservoir. The positive and reverse Kv / Kh Type reservoirs have different laws of waterflood recovery. The location of the maximum permeability layer is an important factor that affects the yield of normal-cycling reservoir waterflooding. The variation law of variation coefficient, Kv / Kh value and maximum permeability layer position are basically the same.