Oil Displacement by Foams in Relation to Their Physical Properties in Porous Media

1974 ◽  
Vol 26 (01) ◽  
pp. 100-108 ◽  
Author(s):  
L. Minssieux
Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 664 ◽  
Author(s):  
Jorge Avendaño ◽  
Nicolle Lima ◽  
Antonio Quevedo ◽  
Marcio Carvalho

Wettability has a dramatic impact on fluid displacement in porous media. The pore level physics of one liquid being displaced by another is a strong function of the wetting characteristics of the channel walls. However, the quantification of the effect is still not clear. Conflicting data have shown that in some oil displacement experiments in rocks, the volume of trapped oil falls as the porous media becomes less water-wet, while in some microfluidic experiments the volume of residual oil is higher in oil-wet media. The reasons for this discrepancy are not fully understood. In this study, we analyzed oil displacement by water injection in two microfluidic porous media with different wettability characteristics that had capillaries with constrictions. The resulting oil ganglia size distribution at the end of water injection was quantified by image processing. The results show that in the oil-wet porous media, the displacement front was more uniform and the final volume of remaining oil was smaller, with a much smaller number of large oil ganglia and a larger number of small oil ganglia, when compared to the water-wet media.


Author(s):  
Andre´ Chambarel ◽  
Herve´ Bolvin

In complex porous media we often notice a percolation phenomenon [KIR 71] [GRI 89]. Usually these media present discontinuous characteristics and a random space distribution [LET 00] [BIR 95]. There results that the classical models based on the resolution of a partial differential problem become inefficient because we have non-derivable function [MAU 01]. Statistical approaches based on the resolution of partial differential problems pose notably the questions concerning the continuity of the functions representing the physical properties of the medium. In this work we propose to study a numerical model of porous media based on a mixture of 2 components in a percolation context. In practice, the main difficulty is based on the complex physical properties. We present also a model of homogenization. Our numerical model is based on the Finite Element approach.


2006 ◽  
Vol 258-260 ◽  
pp. 207-212
Author(s):  
Miranda M.N.N. ◽  
M.A. Silva

In the drying of porous media, the mass transport occurs in the pores as well as on the surface of the solid. The mechanisms involved can take place simultaneously, influenced by the predominant one and can change depending on the moisture content. In this work, the moisture effective diffusivity was estimated in solids with distinct structural properties in order to verify the predominant mechanisms according to the moisture content, analyzing the influence of the physical properties. The materials studied were NaY Zeolite, Kaolin, Silica and Alumina. The results of diffusion coefficient present a minimum at low moisture content that can be related to pore size.


10.2118/218-g ◽  
1953 ◽  
Vol 5 (02) ◽  
pp. 33-40 ◽  
Author(s):  
J.H. Henderson ◽  
N.B. Gove ◽  
H.J. Ledbetter ◽  
J.D. Griffith

Langmuir ◽  
2017 ◽  
Vol 34 (3) ◽  
pp. 739-749 ◽  
Author(s):  
Siyang Xiao ◽  
Yongchao Zeng ◽  
Eric D. Vavra ◽  
Peng He ◽  
Maura Puerto ◽  
...  

2016 ◽  
Vol 14 (5) ◽  
pp. 2175-2183
Author(s):  
Karen Borchardt dos Santos ◽  
Oldrich Joel Romero ◽  
Ana Paula Meneguelo ◽  
Daniel da Cunha Ribeiro

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