| 聚驱后聚表二元复合体系提高残余油采收率研究 |
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| 引用本文： | 夏惠芬,蒋莹,王刚.聚驱后聚表二元复合体系提高残余油采收率研究[J].西安石油大学学报(自然科学版),2010,25(1). |
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| 作者姓名： | 夏惠芬 蒋莹 王刚 |
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| 作者单位： | 1. 大庆石油学院,提高油气采收率教育部重点实验室,黑龙江,大庆,163318
2. 大庆油田有限责任公司,技术发展部,黑龙江,大庆,163453 |
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| 基金项目： | 国家科技重大专项"复杂油气田地质与提高采收率技术"，国家自然科学基金项目"高浓度黏弹性聚合物在微观孔隙中的驱油机理研究" |
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| 摘 要： | 利用不加碱可形成超低界面张力的聚丙烯酰胺/甜菜碱表面活性剂二元复合体系,通过流变性实验,分析了活性剂质量浓度对聚表二元复合体系黏弹性的影响;通过在仿真岩心模型上的驱油实验,分析了不同黏弹性的聚表二元复合体系对聚驱后采收率的影响.研究表明:实验用的两性表面活性剂体系对无碱二元体系的黏弹性影响很小,二元驱油体系的黏弹性越大,聚驱后二元驱的采收率增加幅度也越大.在注入压力允许的条件下,界面张力不一定要达到超低,适当增加聚合物溶液的黏弹性,也可以达到超低界面张力时的驱油效果.
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| 关 键 词： | 聚合物/甜菜碱表活剂复合体系 采收率 残余油 |
Study on enhancing the recovery factor of residual oil by polymer/surfactant compound system after polymer flooding |
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| XIA Hui-fen,JIANG Ying,WANG Gang.Study on enhancing the recovery factor of residual oil by polymer/surfactant compound system after polymer flooding[J].Journal of Xian Shiyou University,2010,25(1). |
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| Authors: | XIA Hui-fen JIANG Ying WANG Gang |
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| Affiliation: | XIA Hui-fen1,JIANG Ying1,WANG Gang2 (1.Key Laboratory of Education Ministry for Enhancing Oil , Gas Recovery,Daqing Petroleum Institute,Daqing 163318,Heilongjiang,China,2.Department of Science , Technology Development,Daqing Oilfield Company,Daqing 163453,China) |
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| Abstract: | After polymer flooding,there is still about 50% of residual oil.In order to further enhance oil recovery factor,it is put forward that after polymer flooding,an amphoteric surfactant/polymer compound solution (for short SP solution) is used for the displacement of the residual oil,this compound oil displacement system can gain ultra-low interfacial tension without alkali.The effect of the mass concentration of the amphoteric surfactant on the rheology characteristic of the SP solution is analyzed through rh... |
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| Keywords: | polymer/amphoteric surfactant compound system recovery factor residual oil |
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