吴起油田Gemini表面活性剂性能评价研究及应用

Chemical Engineer(2014)

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Abstract
Gemini表面活性剂各个体系的表面张力为30mN·m-1左右.在长2油藏条件下,在一定的使用浓度范围内均可使油水界面张力达到0.1~1mN·m-1,在浓度为0.3%时可提高不同渗透率岩芯采收率10%~15%,使用0.5%驱油剂能提高采收率达19.84%.袁和庄2号站现场试验区生产数据对比来看,产液、产油、含水波动较大.试验区注入驱油剂后产量明显增加的有25~35口,日增加产量5.91~10.2t·d-1,其含水稳定,产液量和产油量增加.
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