Category
IPR
30 functions
PO.IPR.GW.D
Calculates Non-Darcy flow coefficient (D) for gas well turbulence effects, [D/mscf]. Used as input to GW.PSS.Rate.NonDarcy.
PO.IPR.GW.PSS.Rate
Calculates gas well flow rate for pseudosteady state condition using Darcy flow approximation, [mscf/D].
PO.IPR.GW.PSS.Rate.NonDarcy
Calculates gas well stabilized flow rate for pseudosteady state condition with Non-Darcy flow equation, [mscf/D].
PO.IPR.GW.PSS.Time
Calculates time to reach pseudosteady state (stabilized flow boundary) in gas well, [h].
PO.IPR.HW.DrainArea.Ellipse
Calculates horizontal well drainage area using ellipse geometry (Joshi), [acres].
PO.IPR.HW.DrainArea.Rect
Calculates horizontal well drainage area using two half-circles at ends plus rectangle (Joshi), [acres].
PO.IPR.HW.PSS.PI.ByBabuOdeh
Calculates pseudosteady state productivity index for horizontal well using Babu-Odeh method for a box-shaped, anisotropic reservoir, with a well placed parallel to X(box length)-direction, [STB/(d.psi)].
PO.IPR.HW.PSS.PI.ByBabuOdeh.Centered
Calculates pseudosteady state productivity index for horizontal well using Babu-Odeh method for a box-shaped, anisotropic reservoir, with a well centrally placed parallel to X(box length)-direction, [STB/(d.psi)].
PO.IPR.HW.SS.PI.ByBorisov
Calculates steady state productivity index for horizontal well using Borisov method (isotropic reservoir), [STB/(d.psi)].
PO.IPR.HW.SS.PI.ByEconomides
Calculates steady state productivity index for horizontal well using Economides-Brand-Frick model (anisotropic reservoir, rectangular drainage), [STB/(d.psi)]. Economides et al. (1994) correlation.
PO.IPR.HW.SS.PI.ByEconomides.Centered
Calculates steady state productivity index for horizontal well using Economides model for centered well (Zw = h/2), [STB/(d.psi)]. Economides et al. (1994) correlation.
PO.IPR.HW.SS.PI.ByGRJ
Calculates steady state productivity index for horizontal well using Giger-Reiss-Jourdan method (anisotropic reservoir), [STB/(d.psi)].
PO.IPR.HW.SS.PI.ByJoshi
Calculates steady state productivity index for horizontal well using Joshi method (anisotropic reservoir), [STB/(d.psi)].
PO.IPR.HW.SS.PI.ByRenardDupuy
Calculates steady state productivity index for horizontal well using Renard-Dupuy method (anisotropic reservoir), [STB/(d.psi)].
PO.IPR.Re
Calculates effective drainage radius, [ft].
PO.IPR.Rwa
Calculates effective wellbore radius, [ft].
PO.IPR.VW.Klins.d
Calculates Klins-Clark pressure-dependent exponent d, [dimensionless]. Klins & Clark (1993) correlation.
PO.IPR.VW.PSS.AOF.ByFetkovich
Calculates Fetkovich maximum flow rate (AOF) at Pwf = 0, [STB/d]. Fetkovich (1973) correlation.
PO.IPR.VW.PSS.PI
Calculates pseudosteady state productivity index for vertical well, [bbl/(D.psi)].
PO.IPR.VW.PSS.Rate
Calculates pseudosteady state production flow rate, [bbl/D].
PO.IPR.VW.PSS.Rate.ByFetkovich
Calculates Fetkovich backpressure IPR flow rate for oil, [STB/d]. Fetkovich (1973) correlation.
PO.IPR.VW.PSS.Rate.ByKlins
Calculates Klins-Clark modified Vogel IPR flow rate for oil, [STB/d]. Klins & Clark (1993) correlation.
PO.IPR.VW.PSS.Rate.ByVogel
Calculates Vogel inflow performance for pseudosteady state flow, [bbl/D].
PO.IPR.VW.PSS.Time
Calculates time to reach pseudosteady state for oil well with regular-shaped drainage area, [h].
PO.IPR.VW.SS.PI
Calculates steady state productivity index for vertical well, [bbl/(D.psi)].
PO.IPR.VW.SS.Rate
Calculates steady state production flow rate, [bbl/D].
PO.IPR.VW.SS.Rate.ByVogel
Calculates Vogel inflow performance for steady state flow, [bbl/D].
PO.IPR.VW.TF.PI
Calculates transient state productivity index for vertical well, [bbl/(D.psi)].
PO.IPR.VW.TF.Rate
Calculates transient-state production flow rate, [bbl/D].
PO.IPR.VW.TF.Rate.ByVogel
Calculates Vogel inflow performance for transient-state flow, [bbl/D].