Given the following data for a vertical well:

qg $=2$ MMscf$/$d $,$ gas specific gravity $=0\mathrm{.}71$

D $=2\mathrm{.}26$ in tubing, depth, L $=10,000$ ft$.$

Tubing head pressure $=800$ psia and Tubing head temperature $=150$ OF

Bottom hole temperature is $=200$ OF

Relative roughness of tubing $=0\mathrm{.}0006.$

Calculate the bottom hole flowing pressure using Cullender and Smith method.