Pressure drop across perforations in oil wells
Input(s)
\(q_{o}\): Oil Flow Rate through Perforation (bbl/d)
\(n\): Number of Perforations (dimensionless)
\(\mu_{o}\): Oil Viscosity \((\mathrm{cP})\)
\(B_{o}\): Oil Formation Volume Factor (dimensionless)
\(L_{p}\): Perforation Length (ft)
\(k_{p d}\) : Perforation Damaged Zone Permeability \((\mathrm{mD})\)
\(r_{p}\): Perforation Radius ( \(\mathrm{ft}\) )
\(r_{p d}\) : Perforation Damaged Zone Radius (ft)
\(\rho_{o}\): Oil Density \(\left(\mathrm{lbm} / \mathrm{ft}^{3}\right)\)
Output(s)
\(\Delta p_{p}\): Pressure Drop across Perforations (psi)
\(\beta_{p d}\): Velocity Coefficient of Turbulence Factor \((1 / \mathrm{ft})\)
Formula(s)
Reference(s)
Bell, W. T., Sukup, R. A., & Tariq, S. M. (1995). Perforating. Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers, Page: 61.