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本文给出了预选聚合物对水驱具有或不具有底水区灰岩油藏的影响以及垂直或水平生产井对原油采收率影响的实验室模型研究。为了研究相对油水层厚、段塞大小以及井型对生产效率的影响，我们做了十六个岩芯流动驱替试验，并且对常规水驱和聚合物加强注水驱动的差别进行了大量对比。在试验中所用的是粘度为14．5mPa·s的轻质原油。在六种具有不同离子特性和分子量的聚丙烯酰胺样品中，低离子中分子量的聚合物在八个聚合物流动实验中都显示了最好的阻力系数和残余阻力系数特征，因此选用做驱动试验。驱动试验的结果表明，随着底水区厚度的增加，最终原油采收率降低。聚合物溶液对水驱动态能产生有利影响，并且，常规水驱动态越差，聚合物作为流度控制剂的效果越好。在注聚合物中，通过浓度曲线和滞留量数值对段塞大小的影响进行了讨论，认为段塞大小为0．6PV的聚合物是最佳的。在常规水驱薄层底水油藏时，用水平生产井获得的原油采收率要比垂直生产井好一些，然而在聚合物强化水驱时，用水平生产井还不如用垂直生产井，这是因为用水平生产井聚合物溶液系出早，减少了聚合物波及面积，这一点也通过浓度曲线进行了研究。
This paper presents a laboratory model study of the effect of preselected polymers on the performance of limestone reservoirs with or without bottom water flooding and the effect of vertical or horizontal production wells on oil recovery. In order to study the effects of relative wellbore thicknesses, slug size, and well pattern on production efficiency, we conducted 16 core-flow displacement tests and compared the differences between conventional waterflood and polymer-enhanced waterflooding. Used in the test is a light crude oil with a viscosity of 14.5 mPa · s. Among the six polyacrylamide samples with different ionic properties and molecular weights, low-molecular-weight polymers showed the best drag coefficient and residual resistance coefficient characteristics in all eight polymer flow experiments and were therefore chosen as the driving test . The results of the driving test show that the final crude oil recovery rate decreases as the thickness of the bottom water zone increases. Polymer solutions have a beneficial effect on water-driven behavior, and the worse the conventional water-driven behavior, the better the polymer as a flow control agent. In polymer injection, the effect of slug size on concentration curves and retention values is discussed, and a polymer with a slug size of 0.6 PV is considered optimal. In conventional waterflooding thin-bedded bottom water reservoirs, the recovery rate of crude oil obtained from horizontal production wells is better than that of vertical production wells. However, when using polymer-enhanced waterflooding, horizontal production wells may not be as good as vertical production wells, This is because using a horizontal production well polymer solution early, reducing the polymer spread area, which is also studied by the concentration curve.