直流电场对水驱油藏油水相对渗透率的影响研究

电化学（中英文） ›› 2005, Vol. 11 ›› Issue (2): 215-218.

直流电场对水驱油藏油水相对渗透率的影响研究

张继红,岳湘安,杨晶,刘颖,李宏岭

中国石油大学提高采收率中心,中国石油大学提高采收率中心,大庆石油学院石油工程学院,大庆石油学院石油工程学院,中国石油大学提高采收率中心北京102249大庆石油学院石油工程学院,黑龙江大庆,163318 ,北京102249 ,黑龙江大庆,163318 ,黑龙江大庆,163318 ,北京102249

收稿日期:2005-05-28 修回日期:2005-05-28 出版日期:2005-05-28 发布日期:2005-05-28

Influence of DC Electric Field on the Oil-water Relative Permeability in Water-drive Reservoir

ZHANGJi-hong~

(*1,2), YUEXiang-an~(1),YANG Jing~(2), LIU ying~(2), LI Hong-ling~1(1. Reserch Center of Enhanced Oil Recovery, Petroleum University of China, Beijing102249,China,2. Department of Petroleum Engineeringof Daqing University, Daqing 163318,China

Received:2005-05-28 Revised:2005-05-28 Published:2005-05-28 Online:2005-05-28

摘要/Abstract

摘要： 研究、分析了直流电场强度、方向等因素对油藏岩石油水相对渗透率的影响及其作用机理.实验表明,在直流电场作用下,岩心呈强水湿性,束缚水饱和度增大,残余油饱和度降低;随着电场强度的增加,油相相对渗透率增大,水相相对渗透率降低;其极性相和非极性相各自呈现的不同渗流特性、壁面双电层结构变化以及原油的电粘效应等都是影响油水相对渗透率的因素.

关键词: 直流电场, 相对渗透率

Abstract: The effectsof DC electric field strength and direction on oil-water relative permeability and the influence mechanism in reservoir were studied and analysed.The results of experiments indicated that, with the application of external electric field, the core samplesbecomes more hydrohilic, irreducible water saturation increasesand residual oil saturation decreases. Meanwhile, oil relative permeability increases and water relative permeability decreases with increasingof the strength of external electric field. It is demonstrated as well that the different seepage flow behaviors, the structure change of double-electric-layer surface and the electric-viscous effect of polar and non-polar phaseare the main factors influencingoil-water relative permeability.

Key words: DC electric field, Relative permeability, Seepage flow behavior

中图分类号:

TE357.6

张继红,岳湘安,杨晶,刘颖,李宏岭. 直流电场对水驱油藏油水相对渗透率的影响研究[J]. 电化学（中英文）, 2005, 11(2): 215-218.

ZHANGJi-hong~. Influence of DC Electric Field on the Oil-water Relative Permeability in Water-drive Reservoir[J]. Journal of Electrochemistry, 2005, 11(2): 215-218.

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