scholarly journals Electrical conductivity of unsaturated porous media: Pore-scale model and comparison with laboratory data

2004 ◽  
Vol 31 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. Dalla ◽  
G. Cassiani ◽  
A. Brovelli ◽  
D. Pitea
Keyword(s):  
Electrical Conductivity ◽  
Porous Media ◽  
Laboratory Data ◽  
Scale Model ◽  
Pore Scale ◽  
Unsaturated Porous Media ◽  
Pore Scale Model

A Predictive Pore-Scale Model for Non-Darcy Flow in Porous Media

SPE Journal ◽  
2009 ◽  
Vol 14 (04) ◽  
pp. 579-587 ◽  
Author(s):  
Matthew T. Balhoff ◽  
Mary F. Wheeler
Keyword(s):  
Porous Media ◽  
Darcy Flow ◽  
Flow In Porous Media ◽  
Scale Model ◽  
Pore Scale ◽  
Pore Scale Model

scholarly journals A numerical study on oxygen adsorption in porous media of coal rock based on fractal geometry

2020 ◽  
Vol 7 (2) ◽  
pp. 191337
Author(s):  
Xianzhe Lv ◽  
Xiaoyu Liang ◽  
Peng Xu ◽  
Linya Chen
Keyword(s):  
Porous Media ◽  
Scaling Laws ◽  
Spontaneous Combustion ◽  
Numerical Study ◽  
Nitrogen Adsorption ◽  
Oxygen Adsorption ◽  
Scale Model ◽  
Pore Scale ◽  
Coal Rock ◽  
Pore Scale Model

In order to explore the factors affecting coal spontaneous combustion, the fractal characteristics of coal samples are tested, and a pore-scale model for oxygen adsorption in coal porous media is developed based on self-similar fractal model. The liquid nitrogen adsorption experiments show that the coal samples indicate evident fractal scaling laws at both low-pressure and high-pressure sections, and the fractal dimensions, respectively, represent surface morphology and pore structure of coal rock. The pore-scale model has been validated by comparing with available experimental data and numerical simulation. The present numerical results indicate that the oxygen adsorption depends on both the pore structures and temperature of coal rock. The oxygen adsorption increases with increased porosity, fractal dimension and ratio of minimum to maximum pore sizes. The edge effect can be clearly seen near the cavity/pore, where the oxygen concentration is low. The correlation between the oxygen adsorption and temperature is found to obey Langmuir adsorption theory, and a new formula for oxygen adsorption and porosity is proposed. This study may help understanding the mechanisms of oxygen adsorption and accordingly provide guidelines to lower the risk of spontaneous combustion of coal.

scholarly journals Homogenization of a pore scale model for precipitation and dissolution in porous media

2016 ◽  
Vol 81 (5) ◽  
pp. 877-897 ◽  
Author(s):  
K. Kumar ◽  
M. Neuss-Radu ◽  
I. S. Pop
Keyword(s):  
Porous Media ◽  
Scale Model ◽  
Pore Scale ◽  
Pore Scale Model

Pore-scale model for fluid injection andin situgelation in porous media

1998 ◽  
Vol 57 (5) ◽  
pp. 5825-5832 ◽  
Author(s):  
Karsten E. Thompson ◽  
H. Scott Fogler
Keyword(s):  
Porous Media ◽  
Scale Model ◽  
Fluid Injection ◽  
Pore Scale ◽  
Pore Scale Model
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