A Study on the Factors Influencing Coal Fracturing Range Caused by Liquid Carbon Dioxide Phase Transition

Table 2

Fitting equations for natural methane flow in different boreholes before and after blasting with time.

Drill hole serial number		Fitting equation	Fitting parameters a	Fitting parameters b	Goodness-of-fit
Before blasting			0.0436	0.5552	0.9813
After blasting	Blasting hole		0.0327	0.0792	0.9668
	1# monitoring hole		0.0331	0.0941	0.9772
	2# monitoring hole		0.0255	0.0687	0.9101
	3# monitoring hole		0.0231	0.1289	0.9408
	4# monitoring hole		0.0212	0.1315	0.9443
	5# monitoring hole		0.0121	0.2244	0.9373
	6# monitoring hole		0.0025	0.0514	0.6957