| 多孔介质中微观力的作用及渗流模型 |
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| 引用本文： | 邓庆军, 朱维耀, 王小锋, 隋新光, 王小佳. 多孔介质中微观力的作用及渗流模型[J]. 工程科学学报, 2014, 36(4): 415-423. DOI: 10.13374/j.issn1001-053x.2014.04.001 |
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| 作者姓名： | 邓庆军 朱维耀 王小锋 隋新光 王小佳 |
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| 作者单位： | 1. 东北石油大学, 大庆 163000; |
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| 基金项目： | 国家重大项目;教育部专项 |
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| 摘 要： | 在现有微尺度流动实验和理论认识的基础上，建立了包含范德华力、静电力、空间位型力、表面张力等微观力的特性方程，分析了影响多孔介质中流体流动的微观力种类和作用范围.通过建立考虑微观力作用的圆管流动数学模型，构造了考虑微观力作用的多孔介质的毛管束网络数学模型，推导了考虑微观力作用的相对渗透率模型.通过模拟分析阐明了微观力在多孔介质壁面上的作用及对渗流的影响.模拟结果表明微观力在细小孔隙流动中不可忽略.
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| 关 键 词： | 多孔介质 微观力 渗流 渗透率 数学模型 |
| 收稿时间： | 2013-02-27 |
Seepage model considering micro forces in porous media |
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| DENG Qing-jun, ZHU Wei-yao, WANG Xiao-feng, SUI Xin-guang, WANG Xiao-jia. Seepage model considering micro forces in porous media[J]. Chinese Journal of Engineering, 2014, 36(4): 415-423. DOI: 10.13374/j.issn1001-053x.2014.04.001 |
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| Authors: | DENG Qing-jun ZHU Wei-yao WANG Xiao-feng SUI Xin-guang WANG Xiao-jia |
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| Affiliation: | 1. Northeast Petroleum University, Daqing 163000, China;2. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;3. First Oil Production Plant, Daqing Oilfield, Daqing 163000, China;4. Shengli Well Logging Company, Sinopec, Dongying 257096, China |
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| Abstract: | The characteristic equations of micro forces such as van der Waals force, electrostatic force, steric type force and surface tension were established on the basis of the existing experiments and theories of micro flow. The effect of various micro forces on fluid flow in porous media was analyzed in detail. A mathematical model considering the effect of micro forces was constructed for fluid flow in micro tubes. A new relative permeability formula considering micro forces was derived using the capillary bundle model of porous media. Numerical analysis clarified the effect of micro forces on fluid flow in porous media. Simulation results show that micro forces cannot be neglected in micro-scale porous throats. |
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| Keywords: | porous media micro forces seepage permeability mathematical models |
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