Residual and volatilization of oil in homogeneous porous media

被引：0
|
作者：
Ma Y. [1 ,2 ]
Zheng X. [1 ]
Feng X. [2 ]
Li M. [2 ]
Liang C. [1 ]
机构：
[1] Key Laboratory of Ocean Environment and Ecology, Ministry of Education, Ocean University of China
[2] College of Resources and Environmental Engineering, Shandong University of Technology
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2011年 / 27卷 / 06期
关键词：
Mean grain size; Oil; Porous medium; Residual oil saturation; Volatilization behavior;
D O I：
10.3969/j.issn.1001-8719.2011.06.021
中图分类号：
学科分类号：
摘要：
The effects of porous medium's pore size on residual oil and oil volatilization of the porous medium were investigated by laboratory simulation through screening the sand sample into different particle size fractions. The results showed that the maximum residual oil saturation in porous medium decreased with the increment of mean grain size of porous medium, and power function could express the relationship between the two parameters. Volumetric retention per unit available surface area increased with the increase of mean grain size of porous medium at a linear rate. Oil release from porous medium was with the trend of firstly fast then slow in the continuous leaching process. The residual oil saturation of porous media with large particle size, such as CS 1, CS 2, CS 3, and CS 6 with very small particle size changed a little by water leaching. The loss of oil volatilization decreased with the increase of particle size of porous medium, and parabola model could describe its kinetics process. The relationship of minimum residual oil rate and volatilization rate coefficient of oil in porous medium with the mean grain size of porous medium could be described by power function, and the particle size of porous medium impacted the minimum residual oil rate greatly.
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页码：965 / 971
页数：6
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