Linking continuum-scale state of wetting to pore-scale contact angles in porous media.

@article{Sun2019LinkingCS,
  title={Linking continuum-scale state of wetting to pore-scale contact angles in porous media.},
  author={Chenhao Sun and James E. McClure and Peyman Mostaghimi and Anna L. Herring and Mehdi Shabaninejad and Steffen Berg and Ryan T. Armstrong},
  journal={Journal of colloid and interface science},
  year={2019},
  volume={561},
  pages={
          173-180
        }
}

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References

SHOWING 1-10 OF 51 REFERENCES
Beyond Darcy's law: The role of phase topology and ganglion dynamics for two-fluid flow.
TLDR
The results suggest that the role of fluid connectivity cannot be ignored for multiphase flow and show that fluid topology can undergo substantial changes during flow at constant saturation, which is one of the underlying causes of hysteretic behavior.
A pore-level scenario for the development of mixed-wettability in oil reservoirs
Understanding the role of thin films in porous media is vital if wettability is to be elucidated at the pore level. The type and thickness of films coating pore walls determines reservoir wettability
Geometric state function for two-fluid flow in porous media
Models that describe two-fluid flow in porous media suffer from a widely-recognized problem that the constitutive relationships used to predict capillary pressure as a function of the fluid
Spatial Correlation of Contact Angle and Curvature in Pore‐Space Images
We study the in situ distributions of contact angle and oil/brine interface curvature measured within millimeter‐sized rock samples from a producing hydrocarbon carbonate reservoir imaged after
Dynamic fluid connectivity during steady-state multiphase flow in a sandstone
TLDR
It is demonstrated that flow of the nonwetting phase occurs through a network of connections that continuously rearrange between filled pores, which suggests that models of two-phase flow that are fundamental to describing subsurface flow processes such as geologic CO2 storage and hydrocarbon recovery need to modify.
...
...