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Raiskinmäki, P.; Shakib-Manesh, A.; Jäsberg, Ari; Koponen, Antti; Merikoski, J.; Timonen, J.

doi:10.1023/a:1014506503793

Cited by 94 publications

(45 citation statements)

References 19 publications

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“…Still their predictions could describe the experimentally observed time dependency of the filled length of the penetrating fluid, which is that the length of the fluid column is proportional to the square root of time, l ∼ t 0.5 . Several authors have further progressed the subject by considering effects not taken into account by Lucas and Washburn, like inertial [18,19] and gravitational effects [20], deviations from a Poisseuile velocity profile at the inlet of the capillary or at the interface [21,19,22] and variations of the dynamic contact angle [18,23]. Work also extended to rough capillaries [24] and patterned channels [25,26].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Non-equilibrium effects become, however, important when the above time-scales are comparable in size [4]. This applies to processes such as (a) CO 2 displacing water (drainage) in geological CO 2 sequestration and (b) water displacing oil (forced imbibition) in oil recovery, where pore scale instabilities can cause an abrupt increase in the interfacial velocity decreasing 20 the characteristic transition time. Haines jump events, a characteristic feature of two-phase flows in porous media at the pore scale, are an example of the former [5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

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Capillary filling and Haines jump dynamics using free energy Lattice Boltzmann simulations

Zacharoudiou

Boek

2016

Advances in Water Resources

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We investigate numerically the dynamics of capillary filling and Haines jump events using free energy Lattice Boltzmann (LB) simulations. Both processes are potentially important multi-phase pore-scale flow processes for geological CO 2 sequestration and oil recovery. We first focus on capillary filling and demonstrate that the numerical method can capture the correct dynamics in the limit of long times for both high and low viscosity ratios, i.e. the method gives the correct scaling for the length of the penetrating fluid column as a function of time.Examining further the early times of capillary filling, three consecutive length vs. time regimes have been observed, in agreement with available experimental work in the literature. In addition, we carry out simulations of Haines jump events in idealised and realistic rock pore geometries. We observe that the Haines jump events are cooperative, non-local and associated with both drainage and imbibition dynamics. Our observations show that the pore filling dynamics is controlled by the Ohnesorge number, associated with the balance between viscous forces and inertial / surface tension forces. Using this concept, we are able to identify the type of pore filling dynamics that will occur.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Capillary filling and Haines jump dynamics using free energy Lattice Boltzmann simulations

Zacharoudiou

Boek

2016

Advances in Water Resources

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“…where w G is the adsorption parameter, [14,15] proposed another type of fluid-solid interaction, which has been reformulated by Sukop and Thorne as follows [8]:…”

Section: A the Mrt Lb Modelmentioning

confidence: 99%

“…Since the emergence of the pseudopotential LB model, there have been many studies of wetting phenomena using the model [12][13][14][15][16][17][18]. The first attempt was attributed to Martys and Chen in 1996 [12].…”

Section: Introductionmentioning

confidence: 99%

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Contact angles in the pseudopotential lattice Boltzmann modeling of wetting

et al. 2014

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Investigation of gas condensate drop‐out effect on gas relative permeability by Lattice Boltzmann modelling

2019

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In a gas condensate reservoir, a drastic pressure drop in the vicinity of the wellbore makes it subject to gas condensate drop‐out. This phenomenon can adversely affect the productivity of the well and reduce gas recovery. The objective of this paper is to conduct a two‐phase fluid flow simulation on two‐dimensional porous media to understand the effect of the gas condensate drop‐out on the gas relative permeability values. In order to do so, lattice Boltzmann (LB) modelling was applied as a computational fluid dynamics (CFD) approach to perform the simulations in homogeneous and heterogeneous porous structures. The developed model was constrained by periodic boundary conditions at inlet and outlet and bounce‐back boundary condition at fluid‐solid interfaces. It was shown that the model can appropriately monitor formation and movement of the condensate droplets as a result of the pressure drop as well as blockages due to the entrance of the droplets into the throats. A consistent decrease in gas relative permeability values with condensate saturation was observed. It was also indicated that the condensate droplets become mobile at higher critical saturations in the heterogeneous system due to the dominance of capillary forces over viscous forces in the less permeable areas. Such dominance results in more severe blockages in the heterogeneous systems, as the simulation results confirmed.

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Cited by 94 publications

References 19 publications

Capillary filling and Haines jump dynamics using free energy Lattice Boltzmann simulations

Capillary filling and Haines jump dynamics using free energy Lattice Boltzmann simulations

Contact angles in the pseudopotential lattice Boltzmann modeling of wetting

Investigation of gas condensate drop‐out effect on gas relative permeability by Lattice Boltzmann modelling

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