Pore-Scale Investigation on the Plugging Behavior of Submicron-Sized Microspheres for Heterogeneous Porous Media with Higher Permeability

Figure 8

Water distribution inside the core sample of the same permeability (300 mD) using microsphere solution of (a) 100 nm 0.05%, (b) 100 nm 0.2%, (c) 300 nm 0.05%, and (d) 300 nm 0.2%. “Before” denotes before microsphere injection and “after” denotes after microsphere injection.

(a)

(b)

(c)

(d)