Porous media grain size distribution and hydrodynamic forces effects on transport and deposition of suspended particles

Ahfir, Nasre-Dine; Hammadi, Ahmed; Alem, Abdellah; Wang, Huaqing; Bras, Gilbert Le; Ouahbi, Tariq

doi:10.1016/j.jes.2016.01.032

Cited by 56 publications

(16 citation statements)

References 45 publications

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“…In the literature, we can find various types of kinetic equations, because there are many factors affecting the process of suspended particles transportation and deposition in porous medium such as particle size distribution [24,[27][28][29], grain size distribution [28][29][30], hydrodynamic forces [30,31], temperature [32,33] and others. In [7,19], a multistage deposition kinetics is used, with ripening, transient and breakthrough stages.…”

Section: Introductionmentioning

confidence: 99%

A Deep Bed Filtration Model of Two-Component Suspension in Dual-Zone Porous Medium

et al. 2020

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In the paper, a mathematical model for the filtration of two-component suspensions in a dual-zone porous medium is considered. The model consists of the mass balance equations, the kinetic equations for active and passive zones of porous medium for each component of the suspension and Darcy’s law. To solve the problem, a numerical algorithm for computer experimentation is developed on the basis of finite difference method. Based on numerical results, the main characteristics of suspension filtration in a porous medium are established. Influences of model parameters on transport and deposition of suspended particles of two-component suspension in porous media are analysed. It is shown that the polydispersity of suspension and multistage nature of the deposition kinetics can lead to various effects that are not characteristic for the transport of one-component suspensions with one-stage particle deposition kinetics. In particular, in distribution of the concentration of suspended particles in a moving fluid non-monotonic dynamics are obtained at individual points in the medium. It is shown that at the points of the medium near to the input section, the concentration of deposited particles can reach partial capacities in the passive zone.

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Section: Introductionmentioning

confidence: 99%

A Deep Bed Filtration Model of Two-Component Suspension in Dual-Zone Porous Medium

et al. 2020

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“…With the adoption of new technologies, the visualization experiments, computed tomography (CT), nuclear magnetic resonance (NMR), and fluorescence tracking have been introduced in the core flooding experiments. [7][8][9][10][11] Although coarse images can be obtained using these improved experiments, it is still difficult to obtain the quantized relationship between the particles and porous medium.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of particulate suspension transport and permeability impairment in an actual rough fracture under normal stresses

Bin

Tang

Zhao

et al. 2019

Energy Science & Engineering

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The transportation and capture of particulate suspension in a rough fracture are widely encountered in hydrocarbon exploitation. According to a full review of the literature, traditional studies mainly focus on the placement and settlement of coarse particles such as proppants and lost circulation materials. Furthermore, a fracture is often considered to be equivalent to smooth parallel plates, whereas actual fractures are roughly walled with microconvex and are affected by normal stresses. The particulate suspension transport mechanism in a fracture under different normal stresses is still unclear. This paper proposes an approach to evaluate the permeability impairment caused by size‐exclusion of solid particles in a fracture under different normal stresses. The morphology of fracture flow space under different normal stresses is obtained by using optical scanning and FEM. Furthermore, the unresolved CFD‐DEM method is used to study the mechanism of the capture and migration of the particulate suspension in a fracture. The simulation results are in agreement with the experimental results. Furthermore, the effects of the particle size, particle concentration, injected particle volume, fracture occurrence, and applied pressure on particle invasion are discussed.

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“…It is not clear whether all the outcomes of these studies can be applied to stormwater recharge field, because stormwater has very different properties when compared with water used for drinking water treatment (stormwater with much higher SP concentration), or wastewater (stormwater with much lower organics) [12]. In addition, the SP in stormwater are highly heterogeneously sized and they have a diverse range of particle sizes [1,20]. However, few attempts have been made to quantitatively investigate the filtration and clogging processes in the context of stormwater recharge, especially given the significance of the specific properties of stormwater [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…In the process of stormwater recharge, forces and mechanisms that govern the fate of SP are complex and diverse, depending on the density and size of SP [20,25]. These mechanisms greatly change over time and space, as the different forces operate jointly.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, previous studies on the transport and deposition of SP have predominantly concentrated on experiments that were conducted with colloids that represent a group of very fine particles (colloids), ranging in size from 1 nm to 1 µm [32,33]. Colloids have been studied most often because of their ubiquity in groundwater [20]. This narrow size range and small particles allow the following assumption: a monodispersed, non-flocculating suspension at constant flow rate passing through an isotropic, homogeneous porous medium [21].…”

Section: Introductionmentioning

confidence: 99%

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Physical Experiment and Modeling of the Transport and Deposition of Polydisperse Particles in Stormwater: Effects of a Depth-Dependent Initial Filter Coefficient

Zou

Shu

Min

et al. 2019

Water

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The artificial recharge of stormwater is an effective approach for replenishing aquifer and reduce urban waterlogging, but prone to clogging by suspended particles (SP) that are highly heterogeneously sized. In this paper, the transport and deposition of SP in a sand column were investigated under a constant flow condition, for five stormwater concentrations. A depth-dependent initial filter coefficient is incorporated into the conventional filtration model. This modified model considers the heterogeneity of the particle population by lumping the capture of heterogeneous SP into a capture probability. The good agreement between the results of the modified model and the experimental results of measured outlet concentration and average specific deposit validated the modified model. The experiment data and the simulation results both indicate that the highly hyper-exponential retention profiles are caused by non-uniform deposition of heterogeneous SP; and, the conventional model was found to homogenize the spatial distribution of SP retention and overestimate retention of the porous medium. Local and overall permeability reductions were assessed by an empirical relationship and the Kozeny-Carman model, respectively. It is shown that consideration of polydisperse suspended particles is of primary importance. This study highlights the effects of polydisperse particles on SP deposition in a saturated porous medium.

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Porous media grain size distribution and hydrodynamic forces effects on transport and deposition of suspended particles

Cited by 56 publications

References 45 publications

A Deep Bed Filtration Model of Two-Component Suspension in Dual-Zone Porous Medium

A Deep Bed Filtration Model of Two-Component Suspension in Dual-Zone Porous Medium

Numerical simulation of particulate suspension transport and permeability impairment in an actual rough fracture under normal stresses

Physical Experiment and Modeling of the Transport and Deposition of Polydisperse Particles in Stormwater: Effects of a Depth-Dependent Initial Filter Coefficient

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