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自组单分子纳米膜提高驱油效率及微观机理研究
引用本文:冯文光,贺承祖.自组单分子纳米膜提高驱油效率及微观机理研究[J].成都理工大学学报(自然科学版),2004,31(6):726-729.
作者姓名:冯文光  贺承祖
作者单位:成都理工大学"油气藏地质及开发工程"国家重点实验室,成都,610059
摘    要:鉴于某些含阳离子基团的物质可通过静电吸附作用在带负电的硅质矿物表面上形成无润湿纳米膜,使油湿或水湿变为中间润湿或弱水湿,明显提高驱油效率.作者提出在注入水中加入一种含阳离子基团物质的塞段,该物质可在带负电荷的砂岩矿物表面形成可在后续水中脱附的自组单分子纳米膜,通过取代水膜和沥青膜除去各种形式的残油.室内试验表明,该法无论在水湿或油湿,高渗或超低渗储藏中均可获得良好的驱油效果.

关 键 词:砂岩  驱油  润湿性  水膜  自组单分子膜  单分子  纳米膜  提高驱油效率  微观  机理研究  film  microscopic  mechanism  displacement  efficiency  improvement  驱油效果  储藏  高渗  室内试验  残油  沥青  水膜  脱附  面形  矿物表面  砂岩
文章编号:1671-9727(2004)06-0726-04
修稿时间:2004年7月8日

Study on improvement of oil displacement efficiency and microscopic mechanism by a self-assemble monomolecular film
FENG Wen-guang,HE Cheng-zu.Study on improvement of oil displacement efficiency and microscopic mechanism by a self-assemble monomolecular film[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2004,31(6):726-729.
Authors:FENG Wen-guang  HE Cheng-zu
Abstract:Considering that some matter with cationic groups can form the intermediate-wet or the slightly water-wet monomolecular film on the surface of the siliceous mineral with negative electrical charge by way of the static electricity adsorption, the oil-wetting state or the water-wetting state have changed into the slightly water-wetting state, and the oil displacement efficiency can be notably raised. This paper proposes that the material containing the cationic groups can help to improve oil displacement efficiency of the injection water slugs based on the formation of a self-assemble monomolecular film to displacing both water film and oil film on the sandstone mineral surface resulting in the intermediate wetting state. This material could be desorbed in the behind injection water and hence its retention in the reservoir is small. This method could use in both water-wet and oil-wet sandstone oil reservoir.
Keywords:sandstone  oil displacement  wettability  water film  self-assemble monomolecular film
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