Research Article

Fluid Interfaces during Viscous-Dominated Primary Drainage in 2D Micromodels Using Pore-Scale SPH Simulations

Figure 2

(a) NWP distributions (black) at breakthrough for microstructure C in feature plane. Solid phase and WP are colored gray and white, respectively. (b) Normalized macroscopic capillary pressure and specific fluid interfacial area for capillary-dominated primary drainage in microstructure C at . During the preentry regime, increases to the entry capillary pressure level while decreases as the meniscus comes in contact with the solid phase. During the postentry regime, exhibits a constant mean value with fluctuations related to spontaneous Haines jumps.
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