三元体系中化学剂浓度对驱油效果的影响  

The Effect of Chemical Concentration in ASP System on Oil Displacing Efficiency

作　　者：翟瑞滨[1] 曹铁[1] 鹿守亮[1] 韩桂华[1] 高峰[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2002年第4期65-67,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：通过室内物理模拟实验 ,研究了三元体系中聚合物、表面活性剂浓度对驱油效果的影响 ,并进行了降低化学剂用量的实验研究 ,结果表明 ,三元体系与原油粘度比控制在 2∶1～ 5∶1范围内 ,驱油效率才能达到 2 0 %以上 ,在适当的聚合物用量条件下 ,可以降低三元体系中的表面活性剂和碱的用量 ;三元体系配方中表面活性剂与聚合物用量有一定的依赖关系 ,在较高聚合物用量条件下 ,可以在一定范围内降低表面活性剂用量 ;反之 ,降低表面活性剂用量受到一定限制。应结合注入方式和经济效益做进一步优化研究。By the laboratory physical simulation experiments we investigate the effect of polymer and surfactant in ASP slug on oil displacing efficiency, the experimental study on reducing the chemical amount are also conducted. The results show the viscosity ratio of ASP system and crude oil should be in the rang of 2∶1-5∶1 that the ASP flooding can improved the oil displacing efficiency by 20%OOIP; with the feasible amount of polymer we can reduce the amount of surfactant and alkali in ASP system; the surfactant depends on the amount of polymer, at the high concentration of polymer, the amount of surfactant can be reduced; whereas the reduction of the surfactant would be limited. So the injection mode and economic evaluation should also be considered in further investigation.

关 键 词：三元体系 化学剂 驱油效果 物理模拟实验 浓度 聚合物 表面活性剂 驱油效率 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]