PO.SF.CH.Gilbert.Size Function

Description:

Choke diameter using Gilbert (1954) critical flow correlation, [inches]. Calculates required choke size for target rate.

Excel Function Syntax:

=PO.SF.CH.Gilbert.Size(Pwh, Ql, GLR)

Parameters:

Used in Blueprints

Compare choke diameter sizing using different critical flow correlations (Gilbert, Ros, Baxendell, Achong, Pilehvari).

Wellhead pressure using Achong (1961) critical flow correlation, [psia].

Liquid flow rate using Achong (1961) critical flow correlation, [bbl/d]. Modified Gilbert for Lake Maracaibo conditions.

Choke diameter using Achong (1961) critical flow correlation, [inches].

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

Liquid flow rate using Ashford-Pierce (1975) subcritical correction model, [bbl/d]. Extends critical flow correlations to subcritical conditions.

Choke diameter using Ashford-Pierce (1975) model, [inches]. Iterative solution for target rate.