Investigation on the CBM Extraction Techniques in the Broken-Soft and Low-Permeability Coal Seams in Zhaozhuang Coalmine

Table 6

Fracture monitoring results of horizontal well.

Fracture data		The 3^rd stage (m)		The 7^th stage (m)
		1357-1360	1317-1320	947-950
Length (m)	Left wing	43	46	100
	Right wing	0	68	74
	The whole wing	43	114	174
Height (m)		11	16	12
Direction (°)		SW70°	NE49°	NE45°
Attitude		Vertical		Vertical