Evaluation of fractal parameters of percolation model objects and natural porous media by means of NMR microscopy

1999 ◽  
Vol 266 (1-4) ◽  
pp. 242-246 ◽  
Author(s):  
A Klemm ◽  
H.-P Müller ◽  
R Kimmich
Keyword(s):  
Porous Media ◽  
Percolation Model ◽  
Nmr Microscopy ◽  
Fractal Parameters

scholarly journals A dual percolation model for predicting the connectivity of fractured porous media

2016 ◽  
Vol 43 (1) ◽  
pp. 95-110 ◽  
Author(s):  
Pingkang Wang ◽  
Xuhui Zhang ◽  
Xiaobing Lu ◽  
Wei Zheng ◽  
Qingjie Liu
Keyword(s):  
Porous Media ◽  
Percolation Model ◽  
Fractured Porous Media

A stress sensitivity model for the permeability of porous media based on bi-dispersed fractal theory

2018 ◽  
Vol 29 (02) ◽  
pp. 1850019 ◽  
Author(s):  
X.-H. Tan ◽  
C.-Y. Liu ◽  
X.-P. Li ◽  
H.-Q. Wang ◽  
H. Deng
Keyword(s):  
Porous Media ◽  
Fractal Dimension ◽  
Fractal Theory ◽  
Stress Sensitivity ◽  
Maximum Diameter ◽  
Proposed Model ◽  
Fractal Parameters ◽  
Stress Changes ◽  
Capillary Bundle ◽  
Definition Of

A stress sensitivity model for the permeability of porous media based on bidispersed fractal theory is established, considering the change of the flow path, the fractal geometry approach and the mechanics of porous media. It is noted that the two fractal parameters of the porous media construction perform differently when the stress changes. The tortuosity fractal dimension of solid cluster [Formula: see text] become bigger with an increase of stress. However, the pore fractal dimension of solid cluster [Formula: see text] and capillary bundle [Formula: see text] remains the same with an increase of stress. The definition of normalized permeability is introduced for the analyzation of the impacts of stress sensitivity on permeability. The normalized permeability is related to solid cluster tortuosity dimension, pore fractal dimension, solid cluster maximum diameter, Young’s modulus and Poisson’s ratio. Every parameter has clear physical meaning without the use of empirical constants. Predictions of permeability of the model is accordant with the obtained experimental data. Thus, the proposed model can precisely depict the flow of fluid in porous media under stress.

Percolation model of two-phase flow through porous media

1987 ◽  
Vol 22 (1) ◽  
pp. 75-82 ◽  
Author(s):  
V. V. Kadet ◽  
V. I. Selyakov
Keyword(s):  
Porous Media ◽  
Two Phase Flow ◽  
Percolation Model ◽  
Phase Flow ◽  
Flow Through Porous Media ◽  
Two Phase ◽  
Flow Through
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