Productivity Formula of Horizontal Well in Low-Permeability Gas Reservoir considering Multiple Factors

Table 1

Calculation parameter.

Well name	Formation pressure (MPa)	Thickness (m)	Wellbore radius (m)	Horizontal length (m)	Well spacing radius (m)	Reservoir temperature (K)	Threshold pressure gradient (MPa/m)	Stress sensitivity index (MPa^-1)	Slip-off factor	Permeability (mD)	Actual AOF (10^4 m^3/d)
QL203h1	17.43	13	0.107	531.5	770	341.5	0.04	0.02	0	0.16	47
QL205h1	17.08	17.80	0.107	362	640	344.0			0.3	0.09	9.3
QL205h2	20.77	17.80	0.107	843	810	342.8			0	0.57	39