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Table 7

Basic parameters of X3.

Parameters Value
Reservoir parameters
 Mid-depth, H 4887.7 m
 Thickness, h 35.5 m
 Temperature, T 131.98 °C
 Initial pressure, p i 68.74 MPa
 Porosity, ϕ 4.36%
 Permeability, k 23.20 mD
 Rock compressibility coefficient, c t 4.35 × 10−4 MPa−1
Gas parameters @T @p i
 Gas saturation, S g 44.97%
 Compressibility factor, Z 1.3764
 Isothermal volume coefficient, B g 2.836 × 10−3
 Compressibility coefficient, c g 6.989 × 10−3 MPa−1
 Density, ρ g 0.248 g/cm3
 Viscosity, μ g 3.149 × 10−5 mPa·s
Production parameters
 Well radius, r w 74.60 mm
 Production gas rate, q g [7.01, 11.51, 15.15, 19.93] 104 m3/d
 Production time, t p [28.25, 24, 23, 46] h
 Shut-in time, Δt 138.99 h

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