PO.DCA.Convert.EffectiveToNominal Function

Description

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

Syntax

=PO.DCA.Convert.EffectiveToNominal(De)

Parameters

Parameter Description
De Effective decline rate (fraction), must be in [0, 1).

Related Functions

PO.DCA.Convert.AnnualToMonthly

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

PO.DCA.Convert.DailyToAnnual

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

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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