Table 11. Multi-Factor Orthogonal Design for Shale Gas Wells.

	reservoir parameter			engineering parameter			production system parameter
	original reservoir pressure/MPa	matrix permeability/mD	water content	hydraulic fracture number	hydraulic fracture half-length/m	fracture network stress sensitivity/MPa–1	managed pressure drawdown duration/a	initial controlled pressure	pressure drop path
level	A	B	C	D	E	F	G	H	I
1	50	5 × 10–5	0.4	72	60	0.2	0.1	0.2	–0.6
2	60	1 × 10–4	0.45	85	70	0.225	0.5	0.4	–0.3
3	70	5 × 10–4	0.5	90	80	0.25	1	0.6	1
4	80	1 × 10–3	0.55	105	90	0.275	2	0.8	2
5	90	5 × 10–3	0.6	120	100	0.3	3	0.95	3