Mechanistic Studies of Gravity-Assisted Water Flooding in a Thick Heavy Oil Reservoir through Horizontal Injectors Using Three-Dimensional Physical Model

Table 1

Dimensionless groups used in horizontal wells reservoir and their physical meanings.

Number	Dimensionless groups (π terms)	Physical meanings
1		The ratio of the gravity to driving force
2		The ratio of the gravity to capillary force
3		The ratio of the gravity to viscous force