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复杂小断块油藏中 ,由于有些断块过小 ,油藏储量仅由单井控制 ,加之断层封闭、无边、底水或边、底水不活跃等原因 ,油藏在开发中得不到有效的能量补给 ,致使开发效果极差 ,经济效益低下。单井注水吞吐开发模式一方面利用油层的亲水性、发挥毛管力吸水排油的作用实现水驱 ,一方面补充地层能量 ,恢复地层压力 ,实现人工补充能量。通过多周期的注采开发 ,逐渐扩大水驱波及半径、提高驱油效率 ,从而提高无能量补充井的采收率。该方法在黄河南地区各油田实际运用取得了明显效果 ,加之实施简单易行 ,为黄河南地区各油田提高占比重较大的无能量补充井的采收率提出了一个良好的解决办法 ,对同类油藏的开发也具有普遍的指导意义
In the complex small fault block reservoirs, because some fault blocks are too small and reservoir reserves are controlled by only one well, and the faults are closed, boundless, bottom water or edge and bottom water are not active, reservoirs can not be developed Effective energy supply, resulting in poor development results, low economic efficiency. On the one hand, the single-well water flooding huff and puff development model utilizes the hydrophilicity of the oil layer and exerts the function of capillary suction and drainage to realize the water flooding. On the one hand, it replenishes the formation energy and restores the formation pressure and completes the artificial replenishment energy. Through multi-cycle injection and development, waterflooding and radius are gradually expanded to improve flooding efficiency, so as to enhance oil recovery without energy recharge wells. The method has achieved remarkable results in practical application of various oil fields in the southern part of the Yellow River. In addition, the simple and feasible implementation of the method provides a good solution for improving the recovery rate of the non-energy supplementary wells with a relatively large proportion in all the fields in the southern part of the Yellow River. The development of similar reservoirs also has universal guiding significance