| S7 断块油藏表面活性剂渗流行为及驱油机理 |
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| 引用本文： | 刘爱武,刘华,马铭骏,李晓南,黄菊.S7 断块油藏表面活性剂渗流行为及驱油机理[J].西南石油大学学报（社会科学版）,2015,35(1):140-143. |
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| 作者姓名： | 刘爱武 刘华 马铭骏 李晓南 黄菊 |
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| 作者单位： | 1. 中国石化江苏油田分公司地质科学研究院，江苏扬州225012；2. 西南石油大学石油工程学院，四川成都610500 |
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| 摘 要： | 以SN 油田S7 块油藏为例研究了表面活性剂进入多孔介质后，在岩石/油/水这个复杂系统中的渗流、驱油过程。表面活性剂对残余油的作用机理分为乳化、运移、富集3 个方面。低界面张力体系能使油珠分散，使油珠直径变小，使油珠易于流动。实验研究表明，注入表面活性剂后，相对渗透率曲线发生变化，水相曲线左移，液相渗透率明显提高，残余饱和度减少。
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| 关 键 词： | 表面活性剂 两相渗流 界面张力 驱油效率 相渗曲线 |
Flooding Mechanism and Flow Behavior of Surfactant in S7 FaultBlock Reservoir |
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| Liu Aiwu,Liu Hua,Ma Mingjun,Li Xiaonan,Huang Ju.Flooding Mechanism and Flow Behavior of Surfactant in S7 FaultBlock Reservoir[J].Journal of Southwest Petroleum University(Social Sciences Edition),2015,35(1):140-143. |
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| Authors: | Liu Aiwu Liu Hua Ma Mingjun Li Xiaonan Huang Ju |
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| Institution: | 1. Geological Scientific Research Institute，Jiangsu Oilfield Company，SINOPEC，Yangzhou，Jiangsu 225012，China2. School of Petroleum Engineering，Southwest Petroleum University，Chengdu，Sichuan 610500，China |
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| Abstract: | Taking the S7 reservoir of SN Oilfield as an example，a study is made of flow and oil displacement process ofsurfactant in the complex rock / oil / water system after it enters porous media. Surfactant effects on residual oil include thefollowing three aspects: emulsion，migration and enrichment. Low interfacial tension system can make the oil disperse，then theoil droplets become smaller，so it is easy to flow. Experimental studies show，after injection of surfactant，relative permeabilitycurve changes，phase curve shifts to the right，and liquid phase permeability increases，reducing residual saturation. |
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| Keywords: | surfactant two phase flow interfacial tension oil displacement efficiency relative permeability curve |
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