Experimental Study on Vertical Propagation Behavior of Hydraulic Fracture Affected by Artificial Interlayer for Thick Oil Reservoirs

Table 4

Factor normalization.

Factors	(mm)			(ml/min)		(mesh)
	5	15	20	6	12	40/70	70/140
Control effect	0	25%	53%	25%	26%	25%	38%
Normalized results	0	0.47	1	0.47	0.49	0.47	0.72