Excel Function
HarmonicDeclineFitParameters
Description:
Fit Arps harmonic decline to rate-time data and return parameters as a row array [Qi, Di].
Excel Function Syntax:
HarmonicDeclineFitParameters(timeValues, rateValues)
Online Calculator:
| Parameter | Value | Description |
|---|---|---|
| timeValues | Time samples (range or array). | |
| rateValues | Observed rates (range or array). | |
| Result |
Related Functions
5 items
HarmonicDeclineRate
Calculates rate using Arps (1945) harmonic decline curve, [L3/T]. Units of volume [L3] and time [T] must be consistent.
HarmonicDeclineCumulative
Calculates cumulative production using Arps (1945) harmonic decline curve, [L3]. 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.
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.
HarmonicDeclineWeightedFitParameters
Fit Arps harmonic decline to rate-time data with weights and return parameters as a row array [Qi, Di].