为了优选强碱三元复合驱后进一步提高采收率的调驱剂体系,以大庆杏树岗油田为试验平台,以采收率、含水率和注入压力为评价指标,开展了进一步提高采收率方法增油效果试验研究.结果表明:强碱三元复合驱后注入高浓度聚合物溶液、聚表二元复合体系、弱碱三元复合体系、“调剖剂+聚表二元复合体系”组合和“调剖剂+弱碱三元复合体系”组合均可以进一步提高采收率;“凝胶2+体膨颗粒+弱碱三元复合体系”组合的流度控制能力和洗油效率均较强,采收率增幅达10.7％;高浓聚合物驱的产出投入比最大,试验效果最好.%In order to optimize the profile-control and flooding system of further enhancing the oil recovery after the strong-alkali ASP flooding,taking Daqing Xingshugang Oilfield as the experimental platform and recoveryq factor,water cut and injection pressure as the evaluating indexes,the experimental research on the oil stimulation effects of further enhanced oil recovery was carried out.The achievements show that the further enhanced oil recovery after the strong-alkali ASP flooding can be realized by injecting the high-concentration polymer solution,polymer/surface binary complex system,weak-base ASP compound system,group of "profile controlling agent + polymer/surface binary complex system" and group of "profile controlling agent + weak-base ternary compound system".The mobility controlling capacity and oil-displaced efficiency are pretty stronger for the combination of "Gel 2 + volume expansion grain + weak-base ASP compound system",and moreover the recovery factor can be enhanced by 10.7％;the input-output ratio of the high-concentration polymer flooding is maximal,so the economic effect is the best.
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