The impact of sub-resolution porosity on numerical simulations of multiphase flow

Carrillo, Francisco J.; Soulaine, Cyprien; Bourg, Ian C.

doi:10.1016/j.advwatres.2021.104094

Cited by 19 publications

(18 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The approach has been extended in (Carrillo, Bourg, and Soulaine 2020) to account for capillary effects within the porous domain as well. It enables two-phase flow simulations in 3D micro-CT images containing sub-voxel porosity (Carrillo, Soulaine, and Bourg 2022). In (Guo, Mehmani, and Tchelepi 2019), a multi-scale framework was developed for compressible flow, in which the DBS approach is an important component that ensures consistency at the boundaries between the pore domain and porous domain.…”

Section: Micro-continuum Scale Modeling Of Flowmentioning

confidence: 99%

A perspective on applied geochemistry in porous media: Reactive transport modeling of geochemical dynamics and the interplay with flow phenomena and physical alteration

Deng

Gharasoo

Zhang

et al. 2022

Applied Geochemistry

View full text Add to dashboard Cite

Section: Micro-continuum Scale Modeling Of Flowmentioning

confidence: 99%

A perspective on applied geochemistry in porous media: Reactive transport modeling of geochemical dynamics and the interplay with flow phenomena and physical alteration

Deng

Gharasoo

Zhang

et al. 2022

Applied Geochemistry

View full text Add to dashboard Cite

“…Micro-CT measurements can be employed for 3D visualization 19,20 but lack the spatial resolution for capturing water film dynamics and fluid distributions in micro-and mesopores, which cannot be disregarded for understanding flow processes in porous media. 21,22 In this study, we introduce atomic force microscopy (AFM) as a new technique to determine the behavior of water films during drying and imbibition in carbonate rocks. We perform dynamic measurements of the water film thickness across a small area on the outer surface of a Ketton limestone grain during spontaneous imbibition and evaporation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, NMR is limited in time resolution and in visualizing the displacement processes in 3D. Micro-CT measurements can be employed for 3D visualization , but lack the spatial resolution for capturing water film dynamics and fluid distributions in micro- and mesopores, which cannot be disregarded for understanding flow processes in porous media. , …”

Section: Introductionmentioning

confidence: 99%

Spontaneous Imbibition and Evaporation in Rocks at the Nanometer Scale

Wensink,

Schröer,

Dell

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

Understanding multiphase fluid displacement dynamics in porous media is of great importance in efficiently designing hydrogen storage projects in porous reservoirs. During gas injection and extraction, cyclic evaporation and spontaneous imbibition processes have an impact on storage efficiency. In both imbibition and evaporation, capillary films on the surface of grains play a role in the transport of water through the pore space. In this study, we use atomic force microscopy to study the formation of these films in carbonate rock during imbibition and their dynamic behavior during evaporation. The imbibition dynamics are related to pore-scale processes determined by micro-CT experiments. We find that imbibition through the mesoporous structure of the grains is slower compared to imbibition in macropores. The formation of the water film on the outer grains is also slower, indicating that a film is evolving due to water flow through intragranular mesopores rather than film flow around the grains. Evaporation experiments reveal that the film shows both local swelling and shrinkage behavior, which we relate to pore-scale processes causing disconnection of the water film. Our results show the close relationship between pore-scale processes and water film dynamics during both spontaneous imbibition and evaporation. This work forms a basis for a more quantitative study of the impact of pore structure on wetting and drying dynamics and can be extended to reactive flow processes.

show abstract

“…Therefore, single-phase fluid dynamics modeling across the multiscale porous medium is well established within the micro-continuum framework, and is widely used in simulations of reactive flow in fractures and mineral precipitation. 35,[39][40][41][42] The multiphase micro-continuum DBS framework has recently modeled multiphase flows in a multiscale porous medium. Horgue et al 43 and Soulaine et al 14,18 proposed two-phase micro-…”

mentioning

confidence: 99%

“…of flow within the sub-resolution porosity on multiphase flow in heterogeneous porous media [39]. Several limitations in the multiphase micro-continuum model persist.…”

mentioning

confidence: 99%

Improved micro-continuum approach for capillary-dominated multiphase flow with reduced spurious velocity

Liu

Yang

et al. 2022

Physics of Fluids

View full text Add to dashboard Cite

A diverse range of multiphase flow and transport occurs in multiscale porous media. The multiphase micro-continuum Darcy-Brinkmann-Stokes (DBS) model has been developed to simulate the multiphase flow at both the pore and continuum scales via single-field equations. However, the unacceptable spurious velocities produced by the conventional micro-continuum DBS model present challenges to the modeling of capillary-dominated flow dynamics. This study improves the micro-continuum DBS model to mitigate these spurious velocities at the gas-liquid interface and contact-line regions. A hybrid interpolation scheme is proposed to improve the computational accuracy of the interface curvature and reduce the spurious velocity around the gas-liquid interface by 1-2 orders of magnitude. At the porous boundary, the normal to the gas-liquid interface is corrected, and the normal to the solid-fluid interface is smoothed to guarantee the prescribed wettability condition and decrease the spurious velocities at the contact-line region by an order of magnitude. A series of static and dynamic benchmark cases are investigated to demonstrate that the improved DBS model can simulate capillary-dominated multiphase flows with negligible spurious velocities at capillary numbers as low as 10-4 in both simple and complex geometries. The improved DBS model can combine X-ray computed micro-tomography images to perform multiscale simulations of capillary-dominated multiphase flow and understand the effect of sub-resolution porosity on fluid dynamics in naturally multiscale rocks.

show abstract

The impact of sub-resolution porosity on numerical simulations of multiphase flow

Cited by 19 publications

References 87 publications

A perspective on applied geochemistry in porous media: Reactive transport modeling of geochemical dynamics and the interplay with flow phenomena and physical alteration

A perspective on applied geochemistry in porous media: Reactive transport modeling of geochemical dynamics and the interplay with flow phenomena and physical alteration

Spontaneous Imbibition and Evaporation in Rocks at the Nanometer Scale

Improved micro-continuum approach for capillary-dominated multiphase flow with reduced spurious velocity

Contact Info

Product

Resources

About