Excel Function
ExponentialDeclineCumulative
Description:
Calculates cumulative production using Arps (1945) exponential decline curve, [L3]. Units of volume [L3] and time [T] must be consistent.
Excel Function Syntax:
=ExponentialDeclineCumulative(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 ExponentialDeclineCumulative
| Formula | Result |
|---|---|
=ExponentialDeclineCumulative(1000, 0.0008, 365)Calculate cumulative production over one year using exponential decline | 316539 |
Related Theory
1 item
Related Functions
5 items
ExponentialDeclineEUR
Estimated Ultimate Recovery (EUR) to an economic rate limit for Arps exponential decline, [L3]. Returns cumulative production up to the time the rate reaches the economic limit.
ExponentialDeclineFitParameters
Fit Arps exponential decline to rate-time data and return parameters as a row array [Qi, Di].
ExponentialDeclineRate
Calculates rate using Arps (1945) exponential decline curve, [L3/T]. Units of volume [L3] and time [T] must be consistent.
ExponentialDeclineTime
Time to reach an economic rate limit for Arps exponential decline, [T]. Returns the time when the production rate falls to the specified economic limit.
ExponentialDeclineWeightedFitParameters
Fit Arps exponential decline to rate-time data with weights and return parameters as a row array [Qi, Di].