Vertical Pseudosteady-State Flow LAMBDAs
Pseudosteady-state rate by Darcy, Vogel, Fetkovich and Klins-Majcher, with time to stabilization.
8 lambdas
PO.IPR.VW.PSS.Rate.SI(J, P_average, Pwf)
Calculates pseudosteady state production flow rate, [m3/d] (SI units).
PO.IPR.VW.PSS.Rate.ByVogel.SI(J, P_average, Pwf, Pb)
Calculates Vogel inflow performance for pseudosteady state flow, [m3/d] (SI units).
PO.IPR.VW.PSS.Rate.ByFetkovich.SI(C, n, Pres, Pwf)
Calculates Fetkovich backpressure IPR flow rate for oil, [m3/d]. Fetkovich (1973) correlation (SI units).
PO.IPR.VW.PSS.AOF.ByFetkovich.SI(C, n, Pres)
Calculates Fetkovich maximum flow rate (AOF) at Pwf = 0, [m3/d]. Fetkovich (1973) correlation (SI units).
PO.IPR.VW.PSS.Rate.ByKlins.SI(QoMax, Pres, Pb, Pwf)
Calculates Klins-Clark modified Vogel IPR flow rate for oil, [m3/d]. Klins & Clark (1993) correlation (SI units).
PO.IPR.VW.Klins.d.SI(Pres, Pb)
Calculates Klins-Clark pressure-dependent exponent d, [dimensionless]. Klins & Clark (1993) correlation (SI units).
PO.IPR.VW.PSS.Time.SI(Re, K, Ul, porosity, Ct)
Calculates time to reach pseudosteady state for oil well with regular-shaped drainage area, [h] (SI units).
PO.IPR.VW.PSS.PI.SI(K, h, Bl, Ul, Re, Rw, S)
Calculates pseudosteady state productivity index for vertical well, [m3/(d.kPa)] (SI units).