Category
SF
45 functions
PO.SF.CH.Achong.Pwh
Wellhead pressure using Achong (1961) critical flow correlation, [psia].
PO.SF.CH.Achong.Rate
Liquid flow rate using Achong (1961) critical flow correlation, [bbl/d]. Modified Gilbert for Lake Maracaibo conditions.
PO.SF.CH.Achong.Size
Choke diameter using Achong (1961) critical flow correlation, [inches].
PO.SF.CH.AshfordPierce.Pwh
Wellhead pressure using Ashford-Pierce (1975) model, [psia]. Iterative solution for target rate.
PO.SF.CH.AshfordPierce.Rate
Liquid flow rate using Ashford-Pierce (1975) subcritical correction model, [bbl/d]. Extends critical flow correlations to subcritical conditions.
PO.SF.CH.AshfordPierce.Size
Choke diameter using Ashford-Pierce (1975) model, [inches]. Iterative solution for target rate.
PO.SF.CH.Baxendell.Pwh
Wellhead pressure using Baxendell (1957) critical flow correlation, [psia].
PO.SF.CH.Baxendell.Rate
Liquid flow rate using Baxendell (1957) critical flow correlation, [bbl/d]. Developed from Lake Maracaibo field data.
PO.SF.CH.Baxendell.Size
Choke diameter using Baxendell (1957) critical flow correlation, [inches].
PO.SF.CH.Gas.Pressure
Required upstream pressure for sonic gas flow, [psia].
PO.SF.CH.Gas.Rate
Gas flow rate through choke, [Mscf/d]. Automatically determines sonic or subsonic flow regime.
PO.SF.CH.Gas.Rcrit
Critical pressure ratio for gas (Pdn/Pup at sonic conditions), [dimensionless]. Flow is sonic when actual ratio <= critical ratio.
PO.SF.CH.Gas.Size
Required choke diameter for sonic gas flow, [inches].
PO.SF.CH.Gas.SonicRate
Gas flow rate at sonic (critical) conditions, [Mscf/d]. Rate independent of downstream pressure.
PO.SF.CH.Gilbert.Pwh
Wellhead pressure using Gilbert (1954) critical flow correlation, [psia]. Calculates required pressure for target rate.
PO.SF.CH.Gilbert.Rate
Liquid flow rate using Gilbert (1954) critical flow correlation, [bbl/d]. Widely used for oil wells with gas.
PO.SF.CH.Gilbert.Size
Choke diameter using Gilbert (1954) critical flow correlation, [inches]. Calculates required choke size for target rate.
PO.SF.CH.Liq.dP
Pressure drop across choke for liquid flow, [psi].
PO.SF.CH.Liq.Rate
Liquid flow rate through choke, [bbl/d]. Uses Bernoulli equation for incompressible flow.
PO.SF.CH.Liq.Size
Required choke diameter for liquid flow, [inches].
PO.SF.CH.Pilehvari.Pwh
Wellhead pressure using Pilehvari (1980) critical flow correlation, [psia].
PO.SF.CH.Pilehvari.Rate
Liquid flow rate using Pilehvari (1980) critical flow correlation, [bbl/d]. Based on U. of Tulsa experimental data.
PO.SF.CH.Pilehvari.Size
Choke diameter using Pilehvari (1980) critical flow correlation, [inches].
PO.SF.CH.Ros.Pwh
Wellhead pressure using Ros (1960) critical flow correlation, [psia].
PO.SF.CH.Ros.Rate
Liquid flow rate using Ros (1960) critical flow correlation, [bbl/d].
PO.SF.CH.Ros.Size
Choke diameter using Ros (1960) critical flow correlation, [inches].
PO.SF.CH.Sachdeva.Pwh
Wellhead pressure using Sachdeva (1986) two-phase model, [psia]. Iterative solution for target rate.
PO.SF.CH.Sachdeva.Rate
Liquid flow rate using Sachdeva (1986) two-phase mechanistic model, [bbl/d]. Handles both critical and subcritical flow.
PO.SF.CH.Sachdeva.Size
Choke diameter using Sachdeva (1986) two-phase model, [inches]. Iterative solution for target rate.
PO.SF.PL.Ff
Moody friction factor using Chen correlation
PO.SF.PL.Gas.Pout.PanhandleA
Outlet pressure for gas pipeline using Panhandle A equation, [psia]
PO.SF.PL.Gas.Pout.PanhandleB
Outlet pressure for gas pipeline using Panhandle B equation, [psia]
PO.SF.PL.Gas.Pout.Weymouth
Outlet pressure for gas pipeline using Weymouth equation, [psia]
PO.SF.PL.Gas.Rate.PanhandleA
Gas flow rate using Panhandle A equation for medium-pressure transmission, [Mscf/d]
PO.SF.PL.Gas.Rate.PanhandleB
Gas flow rate using Panhandle B equation for high-pressure large-diameter transmission, [Mscf/d]
PO.SF.PL.Gas.Rate.Weymouth
Gas flow rate using Weymouth equation for high-pressure large-diameter pipelines, [Mscf/d]
PO.SF.PL.Gas.Re
Reynolds number for gas pipeline flow
PO.SF.PL.Gas.Rho
Gas density at pipeline conditions, [lb/ft3]
PO.SF.PL.Gas.Vel
Gas velocity at pipeline conditions, [ft/s]
PO.SF.PL.Liq.dP
Pressure drop for liquid pipeline using Darcy-Weisbach equation, [psi]
PO.SF.PL.Liq.Pin
Required inlet pressure for liquid pipeline, [psia]
PO.SF.PL.Liq.Pout
Outlet pressure for liquid pipeline, [psia]
PO.SF.PL.Liq.Rate
Liquid flow rate for given pressure drop using Darcy-Weisbach, [bbl/d]
PO.SF.PL.Liq.Re
Reynolds number for liquid pipeline flow
PO.SF.PL.Liq.Vel
Liquid velocity in pipeline, [ft/s]