Excel Function
AnsahKnowlesBubaDeclineTime
Description:
Time to reach an economic rate limit for Ansah-Knowles-Buba decline, [T]. Returns the time when the production rate falls to the specified economic limit.
Excel Function Syntax:
=AnsahKnowlesBubaDeclineTime(Qi, alpha, beta, econRate)
Parameters:
| Parameter | Description |
|---|---|
| Qi | Initial rate, [L3/T]. |
| alpha | Dimensionless parameter Alpha, [dimensionless]. |
| beta | Parameter Beta, [1/T]. |
| econRate | Economic rate limit, [L3/T]. |
Related Theory
1 item
Ansah-Knowles-Buba (AKB) Decline Model
Decline Models
Related Functions
5 items
AnsahKnowlesBubaDeclineCumulative
Calculates cumulative production using Ansah-Knowles-Buba decline model. Units of volume [L3] and time [T] must be consistent.
AnsahKnowlesBubaDeclineEUR
Estimated Ultimate Recovery (EUR) to an economic rate limit for Ansah-Knowles-Buba decline, [L3]. Returns cumulative production up to the time the rate reaches the economic limit.
AnsahKnowlesBubaDeclineFitParameters
Fit Ansah-Knowles-Buba decline to rate-time data and return parameters as a row array [Qi, Alpha, Beta].
AnsahKnowlesBubaDeclineRate
Calculates production rate using Ansah-Knowles-Buba decline model. Units of volume [L3] and time [T] must be consistent.
AnsahKnowlesBubaDeclineWeightedFitParameters
Weighted fit of Ansah-Knowles-Buba decline to rate-time data and return parameters as a row array [Qi, Alpha, Beta].