Toward a New Method of Porosimetry: Principles and Experiments

Castro, Antonio Rodríguez de; Omari, Abdelaziz; Ahmadi-Sénichault, Azita; Bruneau, Denis

doi:10.1007/s11242-013-0248-5

Cited by 29 publications

(38 citation statements)

References 33 publications

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“…Finally, we like to mention that, utilizing the property that the thresholds of the yield stress fluids are directly related to the pore sizes, there are inverse techniques to calculate the pore size distributions from the injection experiment data of yield stress fluids (Castro et al. 2014). Because of the existence of the similar thresholds in the two-phase flow of Newtonian fluids, similar kind of inverse techniques may be developed to find the pore size distributions from the experimental results of two-phase flow of Newtonian fluids in porous media.…”

Section: Discussionmentioning

confidence: 99%

Effective Rheology of Two-Phase Flow in Three-Dimensional Porous Media: Experiment and Simulation

et al. 2017

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We present an experimental and numerical study of immiscible two-phase flow of Newtonian fluids in three-dimensional (3D) porous media to find the relationship between the volumetric flow rate (Q) and the total pressure difference () in the steady state. We show that in the regime where capillary forces compete with the viscous forces, the distribution of capillary barriers at the interfaces effectively creates a yield threshold (), making the fluids reminiscent of a Bingham viscoplastic fluid in the porous medium. In this regime, Q depends quadratically on an excess pressure drop (). While increasing the flow rate, there is a transition, beyond which the overall flow is Newtonian and the relationship is linear. In our experiments, we build a model porous medium using a column of glass beads transporting two fluids, deionized water and air. For the numerical study, reconstructed 3D pore networks from real core samples are considered and the transport of wetting and non-wetting fluids through the network is modeled by tracking the fluid interfaces with time. We find agreement between our numerical and experimental results. Our results match with the mean-field results reported earlier.Electronic supplementary materialThe online version of this article (doi:10.1007/s11242-017-0874-4) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Effective Rheology of Two-Phase Flow in Three-Dimensional Porous Media: Experiment and Simulation

et al. 2017

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“…On the grounds of these theoretical considerations, the basis of the yield stress fluids method (YSM) to obtain the PSD of a porous medium from laboratory experiments was recently presented by Rodríguez de Castro (2014) and Rodríguez de Castro et al (2014). It relies on considering the extra increment of Q when ∇P is steeply increased, as a consequence of the pores of smaller and smaller radius that are newly incorporated to the flow.…”

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confidence: 99%

“…4) and experimental (Q i , ∇P i ) data. This new criterion to select α * replaces the one previously presented by Rodríguez de Castro et al (2014). The algorithm used to calculate the PSD using YSM is schematized in Fig.…”

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confidence: 99%

Characterizing Porous Media with the Yield Stress Fluids Porosimetry Method

et al. 2016

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“…A similar study was carried out by Rodriguez de Castro et al . (, ), whereby the bundle of straight parallel capillaries was also adopted to represent porous media. In their research, they formulated a set of inequalities from which they were able to determine pore sizes and their corresponding numbers.…”

Section: Introductionmentioning

confidence: 99%

Characterization of synthetic porous media using non‐Newtonian fluids: experimental evidence

Atallah

Najm

2018

European J Soil Science

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Summary The characterization of pore structures is required for a broad range of applications, from modelling flow dynamics to understanding petroleum reservoir performance. This research was based on a theoretical framework proposed by Abou Najm and Atallah for improved characterization of pore structures using Newtonian and non‐Newtonian fluids. Here, we report the first experimental evidence of the ability of non‐Newtonian shear‐thinning fluids to predict the pore structure of three synthetic porous media using only saturated infiltration experiments of water and guar gum solutions at different concentrations. The method predicted multiple distinct representative pore sizes, depending on the number of guar gum solutions used, optimized to mimic the functional behaviour of porous media in terms of flow and porosity. Statistical analysis revealed satisfactory agreement between the predicted and real pore structures in the three synthetic porous media. Highlights Experimental evidence of the ability of non‐Newtonian fluids to infer the pore structure of porous media Experiments enabled extraction of multi‐flow regimes mimicking functional flow and porosity behaviour Experiments with different guar gum concentrations on three synthetic porous media regenerated known pore structures Promising results for an inexpensive and safe new method for pore structure characterization

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Toward a New Method of Porosimetry: Principles and Experiments

Cited by 29 publications

References 33 publications

Effective Rheology of Two-Phase Flow in Three-Dimensional Porous Media: Experiment and Simulation

Effective Rheology of Two-Phase Flow in Three-Dimensional Porous Media: Experiment and Simulation

Characterizing Porous Media with the Yield Stress Fluids Porosimetry Method

Characterization of synthetic porous media using non‐Newtonian fluids: experimental evidence

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