Gas velocity under sonic flow conditions (through choke)
Input(s)
\(K_{s}\): Empirical Gas Constant \((\mathrm{ft} / \mathrm{s})\)
\(\rho_{l}\): Liquid Density \((\mathrm{g} / \mathrm{cc})\)
\(\rho_{g}\): Gas Density \((\mathrm{g} / \mathrm{cc})\)
Output(s)
v: Allowable Gas Velocity (ft/s)
Formula(s)
\[
v=K_{s} *\left(\frac{\rho_{l}-\rho_{g}}{\rho_{g}}\right)^{0.5}
\]
Reference(s)
John M. Campbell, 1992. Gas Conditioning and Processing, Campbell Petroleum Series, Oklahoma, Vol. 2, Page: 73.