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

Table 2

Statistical analysis on the factors impacting the blocking rate of microspheres.

Factor level	Microsphere size (nm)	Microsphere solution conc. (%)	Permeability (mD)
1	50	0.05	100
2	100	0.1	200
3	300	0.15	300
4	800	0.20	400
5			500
Range	6.17	5.09	4.77
Order	1	2	3