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

Table 4

Comparison of the average recovery factor, the areal sweep efficiency, and the remaining oil saturation in two different injection-production well configurations.

	Horizontal injection well	Vertical injection well	The difference
The remaining oil saturation	45.08	49.61	4.53
Water flood sweep efficiency (% PV)	71.8	54.6	17.2
The water flood oil recovery factor (% OOIP)	41.78	34.16	7.62