多孔介质两相系统毛细压力与饱和度关系试验研究

支银芳; 陈家军; 杨周喜; 郑冰; 杨官光

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多孔介质两相系统毛细压力与饱和度关系试验研究

支银芳, 陈家军, 杨周喜, 郑冰, 杨官光

文章导航 > 水科学进展 > 2007 > 18(2): 151-157

支银芳, 陈家军, 杨周喜, 郑冰, 杨官光. 多孔介质两相系统毛细压力与饱和度关系试验研究[J]. 水科学进展, 2007, 18(2): 151-157.

引用本文:

支银芳, 陈家军, 杨周喜, 郑冰, 杨官光. 多孔介质两相系统毛细压力与饱和度关系试验研究[J]. 水科学进展, 2007, 18(2): 151-157.

ZHI Yin-fang, CHEN Jia-jun, YANG Zhou-xi, ZHENG Bing, YANG Guan-guang. Experimental study of relationship between capillary pressure and saturation in two-phase system in porous media[J]. Advances in Water Science, 2007, 18(2): 151-157.

Citation:

多孔介质两相系统毛细压力与饱和度关系试验研究

1.
北京师范大学环境学院环境模拟与污染控制国家重点联合实验室, 北京, 100875;
2.
陕西省咸阳市勘察测绘院, 陕西, 咸阳, 712000

基金项目: 国家自然科学基金资助项目(40272107)

详细信息

作者简介:
支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

通讯作者:
陈家军,E-mail:jeffchen@bnu.edu.cn

中图分类号: O359.2

Experimental study of relationship between capillary pressure and saturation in two-phase system in porous media

1.
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China;
2.
Xianyang Institute and Mapping, Xianyang 712000, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.40272107).

摘要: 两相系统毛细压力-饱和度(h~S)关系曲线的确定是多孔介质多相流动研究的基础。采用简易试验装置对理想和实际介质中水-气和油-水两相系统中的h~S关系曲线进行了测定。试验结果表明,对于相同两相系统,多孔介质孔隙度愈小,同一毛细压力对应的饱和度相应愈大;对于不同两相系统,理想介质的关系曲线在一定毛细压力以下平缓,较大毛细压力时陡直,实际介质关系曲线走势相对较陡。分析结果表明,水-气和油-水两相系统的实测数据符合Parker等提出的基于van Genuchten(1980)关系式的折算理论;应用折算理论,可以在同一多孔介质某一两相系统h~S关系已知的情况下较好地估计同一孔隙度条件下其它两相系统的h~S关系曲线。
- 多孔介质 /
- 两相系统 /
- 毛细压力 /
- 饱和度
Abstract: The relationship between the capillary pressure and the saturation in two phase system is the basis of gaining the relationship between the capillary pressure and the saturation in the multi-phase system. A simple and reliable setup is employed to obtain the relationship between the capillary pressure and the saturation of the water air and oil water system in the sand and soil samples. The experimental results show that,for a two-phase system with different porosity of porous media,the saturation is bigger with the reduction of porosity under the same capillary pressure;for different two phase system with same dry bulk density,the curve of capillary pressure and saturation in sand appears flater at less than a special capillary pressure value and steeper at the bigger capil ary pressure.However,the curve of the capillary pressure and the saturation in soil seems steeper than in sand. The data analysis shows that the measured values of the water-air and oil water system accord with the scaling method based on van Genutchen(1980)relation mainly proposed by Parker;and when the relationship between the capillary pressure and the saturation in one two-phase is known for a system with a specific porosity and a specific porous medium,those of other two phase can be gained by using scaling method,and the estimated value is in better agreement with the measured one.
- porous media /
- two-phase /
- capillary pressure /
- saturation

[1]

武晓峰,唐杰,藤间幸久.多孔介质三相流中的毛细压力和相对渗透率[J].环境科学进展,1998,7(5):68-73.[2] van Genuchten M Th.A closed-form equation for predicting the hydraulic conductivity of unsaturated soils[J].Soil Science Society of America Journal,1980,44(5):892-898.[3] Parker J C,Lenhard R J,Kuppusamy T.A parametric model for constitutive properties governing multiphase flow in porous media[J].Water Resource Research,1987,23(4):618-624.[4] Lenhard R J,Parker J C.Measurement and prediction of saturation-pressure relationships in three-phase porous media systems[J].Journal of Contaminant Hydrology,1987,1:407-424.[5] Van Geel P J,Sykes J f.Laboratory and model simulations of a LNAPL spill in a variably-saturated sand,1.Laboratory experiment and image analysis techniques[J].Journal of Contaminant Hydrology,1994,17:1-25.[6] Sharma R S,Mohamed H A.An experimental investigation of LNAPL migration in an unsaturated/saturated sand[J].Engineering Geology,2003,70:305-313.[7] 郑冰.包气带轻油(LNAPL)污染多相流实验研究[D].北京:北京师范大学,2004.

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多孔介质两相系统毛细压力与饱和度关系试验研究

1. 北京师范大学环境学院环境模拟与污染控制国家重点联合实验室, 北京, 100875;

2. 陕西省咸阳市勘察测绘院, 陕西, 咸阳, 712000

基金项目: 国家自然科学基金资助项目(40272107)

作者简介:
支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

通讯作者: 陈家军,E-mail:jeffchen@bnu.edu.cn

收稿日期: 2005-10-28
修回日期: 2006-04-07
刊出日期: 2007-03-25

中图分类号: O359.2

关键词:

摘要: 两相系统毛细压力-饱和度(h~S)关系曲线的确定是多孔介质多相流动研究的基础。采用简易试验装置对理想和实际介质中水-气和油-水两相系统中的h~S关系曲线进行了测定。试验结果表明,对于相同两相系统,多孔介质孔隙度愈小,同一毛细压力对应的饱和度相应愈大;对于不同两相系统,理想介质的关系曲线在一定毛细压力以下平缓,较大毛细压力时陡直,实际介质关系曲线走势相对较陡。分析结果表明,水-气和油-水两相系统的实测数据符合Parker等提出的基于van Genuchten(1980)关系式的折算理论;应用折算理论,可以在同一多孔介质某一两相系统h~S关系已知的情况下较好地估计同一孔隙度条件下其它两相系统的h~S关系曲线。

English Abstract

Experimental study of relationship between capillary pressure and saturation in two-phase system in porous media

1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China;

2. Xianyang Institute and Mapping, Xianyang 712000, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.40272107).

Received Date: 2005-10-28
Rev Recd Date: 2006-04-07
Publish Date: 2007-03-25

Keywords:

Abstract: The relationship between the capillary pressure and the saturation in two phase system is the basis of gaining the relationship between the capillary pressure and the saturation in the multi-phase system. A simple and reliable setup is employed to obtain the relationship between the capillary pressure and the saturation of the water air and oil water system in the sand and soil samples. The experimental results show that,for a two-phase system with different porosity of porous media,the saturation is bigger with the reduction of porosity under the same capillary pressure;for different two phase system with same dry bulk density,the curve of capillary pressure and saturation in sand appears flater at less than a special capillary pressure value and steeper at the bigger capil ary pressure.However,the curve of the capillary pressure and the saturation in soil seems steeper than in sand. The data analysis shows that the measured values of the water-air and oil water system accord with the scaling method based on van Genutchen(1980)relation mainly proposed by Parker;and when the relationship between the capillary pressure and the saturation in one two-phase is known for a system with a specific porosity and a specific porous medium,those of other two phase can be gained by using scaling method,and the estimated value is in better agreement with the measured one.

支银芳, 陈家军, 杨周喜, 郑冰, 杨官光. 多孔介质两相系统毛细压力与饱和度关系试验研究[J]. 水科学进展, 2007, 18(2): 151-157.

引用本文:

支银芳, 陈家军, 杨周喜, 郑冰, 杨官光. 多孔介质两相系统毛细压力与饱和度关系试验研究[J]. 水科学进展, 2007, 18(2): 151-157.

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多孔介质两相系统毛细压力与饱和度关系试验研究

作者简介: 支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

通讯作者: 陈家军,E-mail:jeffchen@bnu.edu.cn

Experimental study of relationship between capillary pressure and saturation in two-phase system in porous media

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出版历程

多孔介质两相系统毛细压力与饱和度关系试验研究

1. 北京师范大学环境学院环境模拟与污染控制国家重点联合实验室, 北京, 100875; 2. 陕西省咸阳市勘察测绘院, 陕西, 咸阳, 712000

作者简介: 支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

通讯作者: 陈家军,E-mail:jeffchen@bnu.edu.cn

English Abstract

Experimental study of relationship between capillary pressure and saturation in two-phase system in porous media

1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China; 2. Xianyang Institute and Mapping, Xianyang 712000, China

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作者简介:
支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

通讯作者:
陈家军,E-mail:jeffchen@bnu.edu.cn

1. 北京师范大学环境学院环境模拟与污染控制国家重点联合实验室, 北京, 100875;

2. 陕西省咸阳市勘察测绘院, 陕西, 咸阳, 712000

作者简介:
支银芳(1978- ),女,山西临汾人,博士研究生,主要从事环境模拟与污染治理。E-mail:yfzhi2003@126.com

1. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China;

2. Xianyang Institute and Mapping, Xianyang 712000, China