A Bayesian model selection analysis of equilibrium and nonequilibrium models for multiphase flow in porous media

Ren, Guotong; Rafiee, Javad; Aryana, Saman A.; Younis, Rami M.

doi:10.1016/j.ijmultiphaseflow.2016.11.006

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…It is also possible that a Bayesian probability approach could yield a different prediction, by accounting for a freshly exposed pore having a larger probability of being impaled next to a pore not invaded by previous steps. However, a Bayesian approach requires an experimental calibration that was not possible here, 50,51 while our uniform probability approach was simple and in reasonable agreement with the experiments.…”

Section: ■ Results and Discussionmentioning

confidence: 58%

How Multilayered Feathers Enhance Underwater Superhydrophobicity

Ahmadi

Umashankar

Dean

et al. 2021

ACS Appl. Mater. Interfaces

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Inspired by ducks, we demonstrate that air pockets within stacked layers of porous superhydrophobic feathers can withstand up to five times more water pressure compared to a single feather. In addition to natural duck feathers, this “layer effect” was replicated with synthetic feathers created by laser cutting micrometric slots into aluminum foil and imparting a superhydrophobic nanostructure. It was revealed that adding layers promotes an increasingly redundant pathway for water impalement, which serves to pressurize the enclosed air pockets. This was validated by creating a probabilistic pore impalement model and also by filling the feathers with an incompressible oil, rather than air, to suppress the layer effect. In addition to revealing a utility of natural duck feathers, our findings suggest that multilayered engineered surfaces can maintain air pockets at high pressures, useful for reducing the drag and fouling of marine structures or enhancing desalination membranes.

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Section: ■ Results and Discussionmentioning

confidence: 58%

How Multilayered Feathers Enhance Underwater Superhydrophobicity

Ahmadi

Umashankar

Dean

et al. 2021

ACS Appl. Mater. Interfaces

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“…On the other hand, unstable flow regimes may lead to significant losses of economically recoverable resources from petroleum assets [29], or losses in storage capacity in geologic storage of CO2, due to bypassing of resident fluids [30]. Flow instabilities are caused by heterogeneities in the media and nonlinearities in the flow equations [26,[31][32][33][34]. Bypassing of resident fluids promoted in unstable flow regimes…”

Section: Resultsmentioning

confidence: 99%

An Experimental Investigation of Flow Regimes in Imbibition and Drainage Using a Microfluidic Platform

Guo

Aryana

2019

Energies

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Instabilities in immiscible displacement along fluid−fluid displacement fronts in porous media are undesirable in many natural and engineered displacement processes such as geological carbon sequestration and enhanced oil recovery. In this study, a series of immiscible displacement experiments are conducted using a microfluidic platform across a wide range of capillary numbers and viscosity ratios. The microfluidic device features a water-wet porous medium, which is a two-dimensional representation of a Berea sandstone. Data is captured using a high-resolution camera, enabling visualization of the entire domain, while being able to resolve features as small as 10 µm. The study reports a correlation between fractal dimensions of displacement fronts and displacement front patterns in the medium. Results are mapped on a two-dimensional parameter space of log M and log Ca, and stability diagrams proposed in literature for drainage processes are superimposed for comparison. Compared to recent reports in the literature, the results in this work suggest that transition regimes may constitute a slightly larger portion of the overall flow regime diagram. This two-phase immiscible displacement study helps elucidate macroscopic processes at the continuum scale and provides insights relevant to enhanced oil recovery processes and the design of engineered porous media such as exchange columns and membranes.

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“…Moreover, this dynamic term could yield relative permeability, which highly agreed with the relative permeability experimentally determined. Then, another petroleum study from Ren, et al [198] numerically solved the theories of Buckley and Leverett [8], Barenblatt [151], and Hassanizadeh and Gray [43]. Based on a Bayesian analysis examining the efficacy of these theories to experimental results of decane/pentane-brine seeping in sandstone, Ren, Rafiee, Aryana and Younis [198] concluded that the two-phase fluid redistribution theory agreed more with experimental observations for the higher viscosity ratios of 4.4 and 15, while the other two theories outperformed the two-phase fluid redistribution theory for the lowest viscosity ratio of 1.1.…”

Section: The Validations Of Advanced Theories Against Experimentsmentioning

confidence: 99%

Transient Two-Phase Flow in Porous Media: A Literature Review and Engineering Application in Geotechnics

Yan

Galindo‐Torres

et al. 2022

Geotechnics

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This work reviews the transient two-phase flow in porous media with engineering applications in Geotechnics. It initially overviews constitutive relationships, conventional theories, and experiments. Then, corresponding limitations are discussed according to conflicting observations and multiphase interfacial dynamics. Based on those findings, the dynamic nonequilibrium effects were so defined, which could also be abbreviated as dynamic/transient effects. Four advanced theories have already been developed to resolve these effects. This review collects them and discusses their pros and cons. In addition, this work further reviews the state-of-art in terms of experimental methods, influential factors in dynamic/transient effects, and modelling performance, as well as micromodel and numerical methods at pore-scale. Last, the corresponding geotechnical applications are reviewed, discussing their applicability in effective stress, shear strength, and deformation. Finally, the entire review is briefed to identify research gaps in Geotechnics.

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A Bayesian model selection analysis of equilibrium and nonequilibrium models for multiphase flow in porous media

Cited by 12 publications

References 28 publications

How Multilayered Feathers Enhance Underwater Superhydrophobicity

How Multilayered Feathers Enhance Underwater Superhydrophobicity

An Experimental Investigation of Flow Regimes in Imbibition and Drainage Using a Microfluidic Platform

Transient Two-Phase Flow in Porous Media: A Literature Review and Engineering Application in Geotechnics

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