Excel Function
HarmonicDeclineCumulative
Description:
Calculates cumulative production using Arps (1945) harmonic decline curve, [L3]. Units of volume [L3] and time [T] must be consistent.
Excel Function Syntax:
=HarmonicDeclineCumulative(Qi, Di, time)
Parameters:
| Parameter | Description |
|---|---|
| Qi | Initial rate, [L3/T]. |
| Di | Initial decline rate, [1/T]. |
| time | Time, [T]. |
Usage Examples
Excel formula examples for HarmonicDeclineCumulative
| Formula | Result |
|---|---|
=HarmonicDeclineCumulative(600, 0.001, 365)Calculate cumulative production over one year using harmonic decline | 186693 |
Related Theory
1 item
Related Functions
5 items
HarmonicDeclineEUR
Estimated Ultimate Recovery (EUR) to an economic rate limit for Arps harmonic decline, [L3]. Returns cumulative production up to the time the rate reaches the economic limit.
HarmonicDeclineFitParameters
Fit Arps harmonic decline to rate-time data and return parameters as a row array [Qi, Di].
HarmonicDeclineRate
Calculates rate using Arps (1945) harmonic decline curve, [L3/T]. Units of volume [L3] and time [T] must be consistent.
HarmonicDeclineTime
Time to reach an economic rate limit for Arps harmonic decline, [T]. Returns the time when the production rate falls to the specified economic limit.
HarmonicDeclineWeightedFitParameters
Fit Arps harmonic decline to rate-time data with weights and return parameters as a row array [Qi, Di].