Effect of particle size and concentration on the migration behavior in porous media by coupling computational fluid dynamics and discrete element method

Feng, Qingsong; Cha, Luming; Dai, Caili; Zhao, Guang; Wang, Sen

doi:10.1016/j.powtec.2019.10.011

Cited by 62 publications

(17 citation statements)

References 44 publications

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“…When particle size (d) is larger than 0.59 times of the pore throat size (D), pore throat clogging would occur, when d < 0.59 D, individual particle would easily pass through the pores and possibly deposit on rock surfaces. When d is far smaller than D, for example d/D < 0.01, the interactions between particles and porous media can be neglected (Feng et al, 2020). In general, NPs show higher adsorption on heterogeneous tight porous media with opposite charge.…”

Section: Influencial Factorsmentioning

confidence: 99%

“…Technological Parameters: Increases in NP dosage and injection volume give different results. Phenrat et al (2009) found the impacts of NP dosage were negligible, Feng et al (2020) stated NP retention increased, and Sun et al (2015) reported increased NP mobility thanks to the faster occupation of attachment sites. A rise in flow rate also demonstrates different impacts, either accelerate the particle bridging or wash away the reversibly and loosely attached NPs.…”

Section: Influencial Factorsmentioning

confidence: 99%

“…Conditions Applicable: Limited by NP stability or severe NP aggregation/retention, Feng et al (2020) claimed that the calcium and magnesium ions in injection water should be no higher than 300 mg/L. Given the fact that many oilfields worldwide are featured by high temperature and high salinity with huge amounts of multivalent cations, developing NPs with good salt and temperature tolerance is of crucial importance.…”

Section: Potential Risks and Possible Solutionsmentioning

confidence: 99%

See 2 more Smart Citations

Nanoparticles as Depressurization and Augmented Injection Agents to Facilitate Low Permeability Reservoir Exploitation: Potentials and Risks

Chen

Zhong

2022

Front. Energy Res.

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Section: Influencial Factorsmentioning

confidence: 99%

Section: Influencial Factorsmentioning

confidence: 99%

Section: Potential Risks and Possible Solutionsmentioning

confidence: 99%

See 1 more Smart Citation

Nanoparticles as Depressurization and Augmented Injection Agents to Facilitate Low Permeability Reservoir Exploitation: Potentials and Risks

Chen

Zhong

2022

Front. Energy Res.

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“…In terms of plugging mechanisms of fractured strata, a lot of research has been carried out mainly by means of core experiment, physical simulation experiment and numerical simulation. Some researchers have evaluated the coupling relationship between fracture width, fracture roughness, particle properties and pressure-bearing capacity of plugging layer through core and steel plate seam experiments, and obtained laws such as 1/3 bridging, ideal filling bridging, and 1/2 bridging (Kuzmina et al, 2018;Feng et al, 2020;Li H. et al, 2022). However, the vast majority of experiments have high occasionality, long experimental cycle, and high time and economic costs, and cannot explain the bridging and plugging mechanism of plugging particles visually from a microscopic perspective.…”

Section: Introductionmentioning

confidence: 99%

Study on particle plugging in propagating fractures based on CFD-DEM

Yanqian

Mengling²,

Kunchi³

et al. 2023

Front. Earth Sci.

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In the drilling and completion process of fractured formations, wellbore stability is a key factor affecting the safety of drilling and completing engineering. Previous studies have demonstrated that propping moderately and plugging fractures with soluble particles can improve formation fracture pressure. When it comes to particle transport in 3D rough propagation fractures, the interactions between particle-fracture-fluid need to be considered. Meanwhile, size-exclusion, particle bridging/strain effects all influence particle transport behavior and ultimately particle plugging effectiveness. However, adequate literature review shows that fracture plugging, and fracture propagation have not been considered together. In this study, a coupled CFD-DEM method was put forward to simulate the particle plugging process of propagating fracture, and the effects of positive pressure difference, fracture roughness, particle concentration, and particle shape on the plugging mechanism were examined. It is concluded through the study that: 1) Positive pressure difference too large will lead to excessive fracture aperture, making the particles unable to form effective plugging in the middle of the fracture; positive pressure difference too small will lead to fracture aperture too small, making particles unable to enter into and plug the fracture. 2) No matter how the concentration, particle size and friction coefficient change, they mainly affect the thickness of the plugging layer, while the front end of the particle is still dominated by single-particle bridging, and double-particles bridging and multiple-particles bridging are hardly ever seen. For the wellbore strengthening approaches, such as stress cages, fracture tip sealing, etc., specific analysis should be carried out according to the occurrence of extended fractures. For example, for fractures with low roughness, the particles rarely form effective tight plugging in the middle of the fracture, so it is more suitable for fracture tip sealing; For the fracture with high roughness, if the positive pressure difference is controlled properly to ensure reasonable fracture extension, the particle plugging effect will be good, and the stress cage method is recommended for borehole strengthening.

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“…In fact, the factors affecting the coupled transport of suspended particles and heavy metal ions not only include the concentration of suspended particles, particle size [24,25], seepage velocity [26,27], temperature [28,29], gravity effect [30,31], and type and pH of heavy metal ions [32] but also include a variety of factors such as the type of porous media and physicochemical properties [33]. In this regard, many laboratory experiments have been accomplished to establish models for the deposition and release of suspended matters [34] as well as to establish the governing equations for the cotransport of multiple components [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

The Promotion/Inhibition of the Seepage Transport of Copper Ions by Suspension-Colloidal Particles with Wide Size Gradation

Nie

Yang³

et al. 2021

Geofluids

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Sand column tests were conducted to investigate the seepage transport of silicon powders (SPs) with two wide particle size ranges (30-2000 nm and 2-70 μm), including the cotransport of SPs and copper ions. The results show that the graded large-scale SP has an obvious inhibiting influence on the transport of copper ions. In contrast, in the presence of the graded small-scale SP, the concentration of copper ions in the effluent tends to increase; i.e., there appears to be a promoting effect. However, after a long transport distance, the presence of SPs, regardless of particle size, has an overall retarding effect on heavy metal pollutants (e.g., copper ions). The promoting effect of the increase in seepage velocity on the concentration of copper ions in the effluent is greater with the graded large-scale SPs than with the graded small-scale SPs. In terms of the microstructural characteristics by metallographic microscopy, the average particle size of the deposited graded small-scale SPs is almost constant at different transport distances, while that of the deposited graded large-scale SPs tend to decrease significantly with increasing transport distance; i.e., notable bed filtration is exhibited in the latter case. This physical mechanism also determines the sequence and rate of the retarding effect of SPs on heavy metal ions under seepage flow.

show abstract

Effect of particle size and concentration on the migration behavior in porous media by coupling computational fluid dynamics and discrete element method

Cited by 62 publications

References 44 publications

Nanoparticles as Depressurization and Augmented Injection Agents to Facilitate Low Permeability Reservoir Exploitation: Potentials and Risks

Nanoparticles as Depressurization and Augmented Injection Agents to Facilitate Low Permeability Reservoir Exploitation: Potentials and Risks

Study on particle plugging in propagating fractures based on CFD-DEM

The Promotion/Inhibition of the Seepage Transport of Copper Ions by Suspension-Colloidal Particles with Wide Size Gradation

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