Wellhead pressure (multiphase flow across the choke)
Input(s)
C: Emprical Constant (dimensionless)
n: Emprical Constant (dimensionless)
\(\mathrm{m}\) : Emprical Constant (dimensionless)
R: Producing Gas Liquid Ratio (SCF/BBL)
S: Choke Size \((1 / 64\) in.)
q: Gross Liquid Rate \((\mathrm{bbl} / \mathrm{d})\)
Output(s)
\(P_{w h}\): Upstream Wellhead Pressure \((\mathrm{psi})\)
Formula(s)
\[
P_{w h}=C * R^{m} * \frac{q}{S^{n}}
\]
Reference(s)
Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted Approach, Page: 5/64.