PO.DCA.Duong.Rate Function
Description:
Calculates rate using Duong decline model, [L3/T]. Units of volume [L3] and time [T] must be consistent.
Excel Function Syntax:
=PO.DCA.Duong.Rate(q1, Qinf, a, m, time)
Parameters:
| Parameter | Description |
|---|---|
| q1 | Theoretical rate at t=1, [L3/T]. |
| Qinf | Asymptotic late-time rate q_inf, [L3/T]. |
| a | Intercept constant a (dimension varies with m). |
| m | Slope parameter m, [dimensionless]. |
| time | Time, [T]. |
Used in Blueprints
Decline Model Comparison
Compare multiple decline curve models for the same well. Different models may be more appropriate depending on reservoir type and flow regime. Arps is standard for conventional, Duong for unconventional transient, and PLE for tight/shale.
Duong Decline Forecast
Decline curve forecast using the Duong model, specifically designed for unconventional reservoirs exhibiting transient linear flow. The Duong model captures the power-law behavior common in tight oil and shale gas wells.