Viscous Fingering of Irreducible Water During Favorable Viscosity Two-Phase Displacements

Mejía, Lucas; Mejia, Miguel; Xie, Chiyu; Du, Yujing; Sultan, Abdullah S.; Mohanty, Kishore K.; Balhoff, Matthew T.

doi:10.1016/j.advwatres.2021.103943

Cited by 9 publications

(1 citation statement)

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“…Mishra et al [8] studied the double convective diffusion in the miscible displacement process, analyzed its stability, and studied the change of viscosity under the logarithmic change of the two parameters of solute diffusion coefficient and thermal diffusion coefficient. Mejia et al [9] explored two-phase displacements, where the aqueous phase displaces the oleic phase, under favorable mobility ratios that are typically anticipated to be stable. Their investigation revealed that the introduction of lowviscosity irreducible water facilitates the development of viscous instabilities.…”

Section: Introductionmentioning

confidence: 99%

Study on two-phase displacement law considering mass transfer and diffusion

Zhang,

Li,

Sun

et al. 2024

J. Phys.: Conf. Ser.

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The influence of channeling on viscous fingering instability of CO2 miscible displacement is studied in the paper. Due to the viscous fingering not easily observed in porous media, channeling is used to simplify the viscous fingering instability. We adopted nonlinear simulation to investigate the development of viscous fingering instability during the displacement of Newtonian fluids in a channel by miscible fluids, and the influence of different Pe and different viscosity ratio R was studied. Under homogeneous conditions, when R is the same, the larger the Pe is, the more obvious the convection in the process of CO2 displacement is, the earlier the viscous fingering occurs, and the shorter the time for the finger to break through to the right boundary is. When Pe is the same, the larger the R is, the more unstable the contact area of miscible displacement becomes. More finger structures appear, and more complex fingering phenomena occur. The larger the R is, the earlier the fingering phenomenon appears, and the earlier it breaks through to the right boundary. In addition, we studied the change in Relative Mixing Length (RML) during the diffusion process quantitatively. Finally, our investigation delved into the impact of heterogeneity on viscous fingering. We observed that under significant heterogeneity, viscous fingering tends to manifest preferentially in the direction of increasing permeability.

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Section: Introductionmentioning

confidence: 99%