Table 2: Parameters of fourteen shale gas reservoirs.

Parameters	Unit	Shale Gas Reservoirs
		Bakken	Barnett	Duvernay	Eagle Ford	New Albany	Niobrara	Utica/ Point Pleasant	Wolf -Bone	Wood -ford	Fayett -eville	Haynesville/ Bossier	Marcellus	Montney /Doig	Muskwa
Depth	ft	9500	6750	10500	8500	3500	7500	6500	8000	10000	3950	10500	6250	10000	8000
Thickness	ft	49.5	300	115	150	125	312.5	150	350	170	125	250	175	170	450
Clay content	wt%	25	35	25	22.5	23.50	27.50	35.00	25.00	17.50	35	40	20	15	20
Reservoir Pressure	psi	5400	3200	7950	10500	850.00	5000	3250	5200	3500	3500	2850	7600	7510	3500
Matrix Permeability	10-3mD	3	0.225	0.29	0.128	0.008	0.5	0.0225	0.55	0.25	0.65	0.55	1.1	2.5	0.025
Porosity	%	8.00	5.00	6.75	8.50	11.00	8.00	5.00	6.00	5.50	5.00	9.00	6.50	7.00	4.00
Young’S Modulus	106 psi	4.00	6.00	3.80	2.88	2.50	3.20	2.30	4.80	2.51	2.45	3.50	5.50	5.07	4.50
TOC	%	10.00	5.00	6.50	4.00	13.00	5.50	2.05	5.00	6.50	7.00	2.25	6.50	5.00	5.00
Thermal Maturity	%Ro	0.75	1.45	1.80	1.38	0.96	0.98	1.65	0.90	1.30	2.50	2.15	1.60	1.83	1.90
Adsorbed Gas	%	25.00	35.00	10.00	15.00	15.00	35.00	20.00	40.00	25.00	50.00	15.00	50.00	20.00	10.00
Water Saturation	%	27.5	30	20	25	40.00	35.00	18.00	35.00	22.50	32.50	17.50	25.00	30.00	35.00
Horizontal Length	ft	5000	3250	4300	4800	1800	4250	6500	6050	4200	3000	5800	3500	6300	6800
Fracturing Density	1/ft	0.006	0.00246	0.00512	0.00313	0.00167	0.00259	0.00185	0.00182	0.00262	0.00267	0.00259	0.002	0.00254	0.002353
Frac Half Length	ft	450	140	180	230	320	165	280	150	160	420	380	175	260	210
Frac Conductivity	md-ft	160	55	70	140	25	80	130	100	60	250	185	75	180	70
BHP	psi	1000	320	2000	2600	350	500	325	520	350	350	350	1500	500	300
1st Year Decline Rate	%	65.00	50.00	55.00	70.00	60.00	80.00	70.00	60.00	65.00	60.00	50.00	64.00	54.00	71.00