Physics-Driven Investigation of Wettability Effects on Two-Phase Flow in Natural Porous Media: Recent Advances, New Insights, and Future Perspectives

Bakhshian, Sahar; Rabbani, Harris Sajjad; Shokri, Nima

doi:10.1007/s11242-021-01597-z

Cited by 28 publications

(16 citation statements)

References 57 publications

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Section: Resultssupporting

confidence: 59%

“…Approximately at 75°< θ 2 < 105°, the coexistence of the two modes is clearly observed. There is not only a relatively flat front surface locally but also a certain degree of protrusions, as also proposed in the study of Bakhshian et al 51 The morphological characteristics of residual water in porous media are shown in Figure 7 with different wettability values. A portion of water in the pore space is separated by CO 2 during the flow to form separate residual water masses, which exist in three types of forms.…”

Section: Resultssupporting

confidence: 54%

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Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

Ren

Liu

et al. 2022

ACS Omega

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To improve the efficiency of CO 2 geological sequestration, it is of great significance to in-depth study the physical mechanism of the immiscible CO 2 –water displacement process, where the influential factors can be divided into fluid–fluid and fluid–solid interactions and porous media characteristics. Based on the previous studies of the interfacial tension (capillary number) and viscosity ratio factors, we conduct a thorough study about the effects of fluid–solid interaction (i.e., wettability) and porous media characteristics (i.e., porosity and non-uniformity of granule size) on the two-phase displacement process by constructing porous media with various structural parameters and using a multiphase lattice Boltzmann method. The displacement efficiency of CO 2 is evaluated by the breakthrough time characterizing the displacement speed and the quasi-steady state saturation representing the displacement amount. It is shown that the breakthrough time of CO 2 becomes longer, but the quasi-steady state saturation increases markedly with the increase in CO 2 wettability with the surface, demonstrating an overall improvement of the displacement efficiency. Furthermore, the breakthrough time of CO 2 shortens and the saturation increases significantly with increasing porosity, granule size, and non-uniformity, showing the improvement of the displacement efficiency. Therefore, enhancing the wettability of CO 2 with the surface and selecting reservoirs with greater porosity, larger granule size, and non-uniformity can all contribute to the efficiency improvement of CO 2 geological sequestration.

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Section: Resultssupporting

confidence: 59%

Section: Resultssupporting

confidence: 54%

Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

Ren

Liu

et al. 2022

ACS Omega

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“…Corner flow has also been observed for imbibition by several authors including X. Guo et al (2020) and Bakhshian et al (2021).…”

Section: Wettability and Pore-scale Fluid Displacement Mechanismsmentioning

confidence: 59%

The Impact of Wettability on Dynamic Fluid Connectivity and Flow Transport Kinetics in Porous Media

Nhunduru

Jahanbakhsh

Shahrokhi

et al. 2022

Water Resources Research

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The physical process whereby an immiscible fluid phase replaces a second resident fluid in a porous medium is characteristic of many subsurface operations that include remediation of non-aqueous phase liquids (NAPLs), enhanced oil recovery (EOR), and carbon capture and storage (CCS) technology (Edery et al., 2018;Singh et al., 2017). Mobilization of residual NAPL and oil blobs and trapping of gas bubbles are critical to such operations (Geistlinger & Mohammadian, 2015).In CCS applications, the trapping of supercritical carbon dioxide in the interstitial spaces of porous rocks (known as capillary or residual trapping) inhibits plume migration and enhances storage safety and capacity (Al-Menhali et al., 2016;Krevor et al., 2015). Capillary trapping can contribute up to 40% of the overall CO 2 trapping in the first 100 years post-injection (Li et al., 2015), and it is strongly influenced by the wettability of the porous medium (

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“…Because of the body force, a nonwetting fluid droplet can move from one pore body to neighboring pore bodies. As M increases, as a result of favorable mobility conditions, there is more chance for nonwetting fluid droplets to move to several neighboring pore bodies through the narrow pore throats (Bakhshian et al., 2021), causing fluid droplet fragmentation and thereby enabling the fluid to occupy smaller pore spaces. This might be one of the contributing factors causing k nw to exceed 1 when M = 5 at intermediate saturation.…”

Section: Results and Interpretationmentioning

confidence: 99%

Relative Permeability Variation Depending on Viscosity Ratio and Capillary Number

Suwandi

Jiang

Tsuji

2022

Water Resources Research

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The relative roles of parameters governing relative permeability, a crucial property for two‐phase fluid flows, are incompletely known. To characterize the influence of viscosity ratio (M) and capillary number (Ca), we calculated relative permeabilities of nonwetting fluids (knw) and wetting fluids (kw) in a 3D model of Berea sandstone under steady state condition using the lattice‐Boltzmann method. We show that knw increases and kw decreases as M increases due to the lubricating effect, locally occurred pore‐filling behavior, and instability at fluid interfaces. We also show that knw decreases markedly at low Ca (log Ca < −1.25), whereas kw undergoes negligible change with changing Ca. An M‐Ca‐knw correlation diagram, displaying the simultaneous effects of M and Ca, shows that they cause knw to vary by an order of magnitude. The color map produced is useful to provide accurate estimates of knw in reservoir‐scale simulations and to help identify the optimum properties of the immiscible fluids to be used in a geologic reservoir.

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Physics-Driven Investigation of Wettability Effects on Two-Phase Flow in Natural Porous Media: Recent Advances, New Insights, and Future Perspectives

Cited by 28 publications

References 57 publications

Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

The Impact of Wettability on Dynamic Fluid Connectivity and Flow Transport Kinetics in Porous Media

Relative Permeability Variation Depending on Viscosity Ratio and Capillary Number

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Physics-Driven Investigation of Wettability Effects on Two-Phase Flow in Natural Porous Media: Recent Advances, New Insights, and Future Perspectives

Cited by 28 publications

References 57 publications

Study on the Ways to Improve the CO2–H2O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

Study on the Ways to Improve the CO2–H2O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

The Impact of Wettability on Dynamic Fluid Connectivity and Flow Transport Kinetics in Porous Media

Relative Permeability Variation Depending on Viscosity Ratio and Capillary Number

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Product

Resources

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Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation

Study on the Ways to Improve the CO₂–H₂O Displacement Efficiency in Heterogeneous Porous Media by Lattice Boltzmann Simulation