Excel Function
ExponentialDeclineWeightedFitParameters
Description:
Fit Arps exponential decline to rate-time data with weights and return parameters as a row array [Qi, Di].
Excel Function Syntax:
=ExponentialDeclineWeightedFitParameters(timeValues, rateValues, weightsValues)
Parameters:
| Parameter | Description |
|---|---|
| timeValues | Time samples (range or array). |
| rateValues | Observed rates (range or array). |
| weightsValues | Per-sample weights (range or array), same length as inputs. |
Related Theory
1 item
Related Functions
5 items
ExponentialDeclineCumulative
Calculates cumulative production using Arps (1945) exponential decline curve, [L3]. Units of volume [L3] and time [T] must be consistent.
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.
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