PO.SF.CH.AshfordPierce.Pwh Function

Description:

Wellhead pressure using Ashford-Pierce (1975) model, [psia]. Iterative solution for target rate.

Excel Function Syntax:

=PO.SF.CH.AshfordPierce.Pwh(Ql, d_choke, GLR)

Parameters:

Parameter Description
Ql Liquid rate, [bbl/d].
d_choke Choke diameter, [inches].
GLR Gas-liquid ratio, [scf/bbl].

Related 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.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].

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