Ps

If the reservoir is linear reservoir in which natural gas is flowing. Upstream pressure and downstream pressure are 2000 psia and 1800 psia respectively. The cross-sectional area is 4000ft2and length is 2000ft. Zfactor and viscosity are 0.74and 0.0172cprespectively. Permeability is 50md. Temperature of reservoir is 140F. Then gas flow rate at standard condition through linear porous media is

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