Temperature at choke outlet
Input(s)
\(T_{u}\): Upstream Temperature (R)
\(z_{u}: \quad \mathrm{Z}\) Factor of Upstream Gas Flow (dimensionless)
\(z_{o}\): Z Factor of Upstream Gas Flow in Outlet (dimensionless)
k: Specific Heat Ratio (dimensionless)
\(P_{o}\): Outlet Pressure (psi)
\(P_{u}\): Upstream Pressure at Choke (psi)
Output(s)
\(T_{d n}\): Downstream Temperature (R)
Formula(s)
\[
T_{d n}=T_{u} *\left(\frac{z_{u}}{z_{o}}\right) *\left(\frac{P_{o}}{P_{u}}\right)^{\frac{k-1}{k}}
\]
Reference(s)
Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted Approach, Page: 5/62.