Excel Function
StretchedExponentialDeclineRate
Description:
Calculates production rate using Stretched Exponential decline model. Units of volume [L3] and time [T] must be consistent.
Excel Function Syntax:
=StretchedExponentialDeclineRate(Qi, tau, n, time)
Parameters:
| Parameter | Description |
|---|---|
| Qi | Initial rate, [L3/T]. |
| tau | Characteristic time parameter, [T]. |
| n | Exponent parameter, [dimensionless]. |
| time | Time, [T]. |
Usage Examples
Excel formula examples for StretchedExponentialDeclineRate
| Formula | Result |
|---|---|
=StretchedExponentialDeclineRate(800, 500, 0.5, 365)Calculate production rate at 365 days using stretched exponential decline model | 340.43 |
Related Theory
1 item
Stretched Exponential Production Decline (SEPD) Model
Decline Models
Related Functions
5 items
StretchedExponentialDeclineCumulative
Calculates cumulative production using Stretched Exponential decline model. Units of volume [L3] and time [T] must be consistent.
StretchedExponentialDeclineEUR
Estimated Ultimate Recovery (EUR) to an economic rate limit for Stretched Exponential decline, [L3].
StretchedExponentialDeclineFitParameters
Fit Stretched Exponential decline to rate-time data and return parameters as a row array [Qi, Tau, N].
StretchedExponentialDeclineTime
Time to reach an economic rate limit for Stretched Exponential decline, [T].
StretchedExponentialDeclineWeightedFitParameters
Weighted fit of Stretched Exponential decline to rate-time data and return parameters as a row array [Qi, Tau, N].