PO.DCA.Convert.AnnualToMonthly Function

Description

Converts annual effective decline rate to monthly effective decline rate using compound conversion.

Syntax

=PO.DCA.Convert.AnnualToMonthly(Da)

Parameters

Parameter Description
Da Annual effective decline rate (fraction), must be in [0, 1).

Related Functions

PO.DCA.Convert.DailyToAnnual

Converts daily effective decline rate to annual effective decline rate using compound conversion.

PO.DCA.Convert.EffectiveToNominal

Converts effective (periodic) decline rate to nominal (continuous) decline rate. Dn = -ln(1 - De).

PO.DCA.Convert.MonthlyToAnnual

Converts monthly effective decline rate to annual effective decline rate using compound conversion.

PO.DCA.Convert.NominalToEffective

Converts nominal (continuous) decline rate to effective (periodic) decline rate. De = 1 - exp(-Dn).

PO.DCA.AKB.D

Calculates instantaneous decline rate D(t) for Ansah-Knowles-Buba (2000) decline, [1/T]. Computed numerically.

PO.DCA.AKB.EUR

Estimated Ultimate Recovery (EUR) to an economic rate limit for Ansah-Knowles-Buba (2000) decline, [L3]. Returns cumulative production up to the time the rate reaches the economic limit.

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