Development of Production-Forecasting Model Based on the Characteristics of Production Decline Analysis Using the Reservoir and Hydraulic Fracture Parameters in Montney Shale Gas Reservoir, Canada

Table 7

Statistical results of five formulas for five decline parameters.

Decline parameter				(adj)	(pred)	value	value
	Linear	Formula 1	0.81	0.79	0.76	54.46	<0.001
	Nonlinear	Formula 2	0.76	0.75	0.72	50.36	<0.001
		Formula 3	0.98	0.98	0.98	819.86	<0.001
		Formula 4	0.96	0.96	0.00	52.07	<0.001
		Formula 5	0.99	0.99	0.99	1915.29	<0.001
	Linear	Formula 1	0.55	0.53	0.49	19.32	<0.001
	Nonlinear	Formula 2	0.71	0.69	0.66	38.19	<0.001
		Formula 3	0.88	0.87	0.86	85.05	<0.001
		Formula 4	0.67	0.63	0.00	8.40	<0.001
		Formula 5	0.92	0.91	0.89	79.43	<0.001
	Linear	Formula 1	0.67	0.66	0.64	66.36	<0.001
	Nonlinear	Formula 2	0.73	0.72	0.70	64.55	<0.001
		Formula 3	0.32	0.29	0.18	11.05	<0.001
		Formula 4	0.74	0.72	0.00	27.25	<0.001
		Formula 5	0.32	0.29	0.21	11.06	<0.001
	Linear	Formula 1	0.46	0.43	0.39	16.06	<0.001
	Nonlinear	Formula 2	0.55	0.53	0.48	22.97	<0.001
		Formula 3	0.56	0.54	0.49	23.88	<0.001
		Formula 4	0.48	0.44	0.00	7.21	<0.001
		Formula 5	0.64	0.61	0.56	20.22	<0.001
	Linear	Formula 1	0.83	0.82	0.80	56.82	<0.001
	Nonlinear	Formula 2	0.85	0.84	0.82	63.92	<0.001
		Formula 3	0.56	0.54	0.53	67.74	<0.001
		Formula 4	0.85	0.83	0.81	54.58	<0.001
		Formula 5	0.88	0.87	0.84	60.63	<0.001