A Study to Investigate Fluid-Solid Interaction Effects on Fluid Flow in Micro Scales

Chen, Mingqiang; Cheng, Linsong; Cao, Renyi; Lyu, Chaohui

doi:10.3390/en11092197

Cited by 11 publications

(6 citation statements)

References 26 publications

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“…Since the boundary layer shrinks the flow space, the classic Hagen-Poiseuille equation is modified as Eq. 1 according to the physical meaning (Chen et al, 2018):…”

Section: Representation Of the Boundary Layer Thicknessmentioning

confidence: 99%

A Study to Investigate the Viscosity Effect on Micro-Confined Fluids Flow in Tight Formations Considering Fluid–Solid Interaction

Chen

Cheng

et al. 2021

Front. Earth Sci.

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Understanding different fluids flow behavior confined in microscales has tremendous significance in the development of tight oil reservoirs. In this article, a novel semiempirical model for different confined fluid flow based on the concept of boundary layer thickness, caused by the fluid–solid interaction, is proposed. Micro-tube experiments are carried out to verify the novel model. After the validation, the viscosity effect on the flow rate and Poiseuille number considering the fluid–solid interaction is investigated. Furthermore, the novel model is incorporated into unstructured networks with anisotropy to study the viscosity effect on pore-scale flow in tight formations under the conditions of different displacement pressure gradients, different aspect ratios (ratio of the pore radius to the connecting throat radius), and different coordination numbers. Results show that the viscosity effect on the flow rate and Poiseuille number after considering the fluid–solid interaction induces a great deviation from that in conventional fluid flow. The absolute permeability is not only a parameter related to pore structures but also depends on fluid viscosity. The study provides an effective model for modeling different confined fluid flow in microscales and lays a good foundation for studying fluid flow in tight formations.

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“…Since the boundary layer shrinks the flow space, the classic Hagen-Poiseuille equation is modified as Eq. 1 according to the physical meaning (Chen et al, 2018):…”

Section: Representation Of the Boundary Layer Thicknessmentioning

confidence: 99%

A Study to Investigate the Viscosity Effect on Micro-Confined Fluids Flow in Tight Formations Considering Fluid–Solid Interaction

Chen

Cheng

et al. 2021

Front. Earth Sci.

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“…Chen et al [9] proposed a novel model for characterizing boundary layer thickness and fluid flow at microscales, which has a wide range of applications proved mathematically. Based on this model, the effects of fluid-solid interaction on flow in microtubes and tight formation were analyzed in depth.…”

Section: Overview Of Work Presented In This Special Issuementioning

confidence: 99%

Recent Advances in Flow and Transport Properties of Unconventional Reservoirs

et al. 2019

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As a major supplement to conventional fossil fuels, unconventional oil and gas resources have received significant attention across the globe. However, significant challenges need to be overcome in order to economically develop these resources, and new technologies based on a fundamental understanding of flow and transport processes in unconventional reservoirs are the key. This special issue collects a series of recent studies focused on the application of novel technologies and theories in unconventional reservoirs, covering the fields of petrophysical characterization, hydraulic fracturing, fluid transport physics, enhanced oil recovery, and geothermal energy.

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“…Wu et al (2021) used dissipative particle dynamics to analyze the influence of the fluid-solid interaction force on microflow in shale slits, but this method required a large amount of calculations. Chen et al (2018) used a pore network to simulate fluid-solid interaction, but the research was only applicable to tight reservoirs and lacked macrosimulation analysis.…”

Section: Introductionmentioning

confidence: 99%

Research on Boundary Layer Effect in Fractured Reservoirs Based on Pore-Scale Models

Wang¹,

Zhang²,

Zhang³

2021

Front. Earth Sci.

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It is of great significance to study the seepage characteristics of heavy oil reservoirs, which are conducive to the efficient development of resources. Boundary layer effect (BLE) exists in the pore-scale flow process of macromolecular fluid media, which is different from the flow law of conventional fluid in the pore, yet the influence of BLE is ignored in the previous pore-scale simulation. Conventional porous media simulations have difficulty analyzing the mass transfer law of small-scale models under the influence of microfractures. Based on the CT scanning data and thin section data of the real core in the target area, the rock skeleton and flow space were extracted according to the maximum ball algorithm, and the pore network model representing the complex structure was constructed. The microscale effect of macromolecules in the flow process in the pores was characterized by modifying the effective flow. The effects of the BLE on the effective connectivity, displacement process, and oil distribution law were analyzed. The seepage characteristics of different wettability conditions and different water cut stages were compared. The results show that BLE reduces the effective flow space and leads to deviations in the relative permeability curve and capillary curve. For fractured porous media, the irregular shape of porous media was characterized by the morphological method, and the mass transfer process was analyzed by the equivalent flux method. The influence of the porous media shape on the macromass transfer process was compared. This study provides a solution to the problem of BLE in pore-scale simulation.

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A Study to Investigate Fluid-Solid Interaction Effects on Fluid Flow in Micro Scales

Cited by 11 publications

References 26 publications

A Study to Investigate the Viscosity Effect on Micro-Confined Fluids Flow in Tight Formations Considering Fluid–Solid Interaction

A Study to Investigate the Viscosity Effect on Micro-Confined Fluids Flow in Tight Formations Considering Fluid–Solid Interaction

Recent Advances in Flow and Transport Properties of Unconventional Reservoirs

Research on Boundary Layer Effect in Fractured Reservoirs Based on Pore-Scale Models

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