Table 3. Available Data from Demonstration Wells.

well name	well radius (ft)	initial reservoir pressure Pi (psi)	cumulative coal thickness (ft)	coal saturation (%)	initial gas composition (initial gas stream)	reservoir temperature (°R)	production history
Well-1	0.35	1098	48.0	100	CH4 = 96.7%	590.67	observed production rate
					CO2 = 1.17%		• monthly gas rate
					N2 = 1.88%		• monthly water rate
					C2H6 = 0.25%		observed static pressure
Well-2	0.35	1105	52.0	100	CH4 = 95.7%	591.16	• shut-in period bottom-hole
							• pressure data
							observed FBHP
					CO2 = 0.82%		• fluid level measurements
					N2 = 2.64%		• downhole pressure gauges
					C2H6 = 0.76%		observed gas composition
					C3H8 = 0.04%		• gas composition measurement history
					i-C4H10 = 0.04%
Well-3	0.35	711	49.5	100	CH4 = 95.55%	541.16
					CO2 = 2.04%
					N2 = 1.73%
					C2H6 = 0.62%
					C3H8 = 0.04%
					i-C4H10 = 0.01%
					n-C4H10 = 0.01%