Abstract According to the current situation of the W5 fault block, it is necessary to carry out the surface-active polymer flooding. By physical simulation, the optimal concentration is 1000 mg/L, the optimal slug size is 0.3PV, and the earlier the injection opportunity, the slower the injection rate, the higher the recovery rate. By numerical simulation, the recovery rate of the optimal scheme is 27.2%. Compared with the water flooding, the cumulative oil increase is 3.33 × 104 t, the enhanced oil recovery is 5.74%, the oil-enhancing amount of one ton surface-active polymers is 307.73 t/t, and the ratio of output to input is 16.30.

中文翻译：

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W5断块表面活性聚合物驱方案优化

摘要 根据W5断块现状，开展表面活性聚合物驱是必要的。通过物理模拟，最佳浓度为1000 mg/L，最佳段塞尺寸为0.3PV，注入时机越早，注入速度越慢，采收率越高。通过数值模拟，最优方案的回收率为27.2%。与水驱相比，累计增油3.33×104 t，提高采收率5.74%，1吨表面活性聚合物增油量307.73 t/t，产投比为16.30.