| 超前注水机理综述 |
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| 引用本文： | 马铭勖,秦垦,姚晨昊,刘泽华.超前注水机理综述[J].内蒙古石油化工,2011,37(9):45-46. |
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| 作者姓名： | 马铭勖 秦垦 姚晨昊 刘泽华 |
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| 作者单位： | 中国石油大学石油工程学院,北京,102249 |
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| 摘 要： | 超前注水已经成为低渗透油藏开发的一种重要办法。超前注水在采油井投产前注水,提高地层初始压力,避免了压力降低过快造成的油藏渗透率下降,启动压力梯度增大和原油粘度增大,超前注水使压力梯度的升高,加快了渗流速度。另外,超前注水也能有效地防止指进现象,降低油井产量递减率,最终提高了油藏的采收率。
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| 关 键 词： | 低渗透油藏 超前注水 压力升高 提高采收率 |
Advanced-water-flooding Mechanism Summary |
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| MA Ming-xu
,
QIN Ken
,
YAO Chen-hao
,
LIU Ze-hua.Advanced-water-flooding Mechanism Summary[J].Inner Mongulia Petrochemical Industry,2011,37(9):45-46. |
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| Authors: | MA Ming-xu QIN Ken YAO Chen-hao LIU Ze-hua |
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| Affiliation: | MA Ming-xu,QIN Ken,YAO Chen-hao,LIU Ze-huaCollege of Petroleum Engineering,China University of Petroleum-Beijing,102249 |
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| Abstract: | Advanced-water-flooding has become an important method for developing low permeability reservoirs.Advanced-water-flooding is to inject water into water wells before oil wells product oil.This will increase formation pressure,avoid permeability decreasing,threshold pressure gradient and viscosity increasing.Besides,advanced-water-flooding will raise pressure gradient and make fluids flow faster.What's more,it will avoid Fingering and improve oil recovery. |
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| Keywords: | Low Permeability Reservoirs Advanced-water-flooding Raising Pressure Oil Recovery |
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