Pore-Scale Study of the Impact of Fracture and Wettability on Two-Phase Flow Properties of Rock

Abstract

Abstract. Fractures and wettability are among other factors that can strongly affect the twophase flow properties of porous media. Maximal-inscribed spheres (MIS) and finite-difference flow simulations on computer-generated structures mimicking micro-CT images of fractured rock suggest the character of the capillary pressure and relative permeability curves modification by natural or induced fracture and wettability alteration.

Supercritical CO2 flow through a layered silica sand/calcite sand system: Experiment and modified maximal inscribed spheres analysis

“…The MIS technique modified to incorporate contact angle, [see Section 2 in Silin et al, 2012], was used to compute characteristic curves for the two sands from segmented images from microCT analysis assuming different contact angles. Figure 10 shows plots of capillary pressure curves evaluated for calcite and silica sand packs.…”