PO.DCA.ModHyp.Prod Function
Description:
Calculates cumulative production using modified hyperbolic production decline curve. Units of volume [L3] and time [T] must be consistent.
Excel Function Syntax:
=PO.DCA.ModHyp.Prod(Qi, Di, Dlim, b, time)
Parameters:
| Parameter | Description |
|---|---|
| Qi | Initial rate, [L3/T]. |
| Di | Initial nominal decline rate, [1/T]. |
| Dlim | Decline rate limit when switch to exponential decline occurs, [1/T]. Dlim <= Di. |
| b | Hyperbolic exponent, [dimensionless]. |
| time | Time, [T]. |
Used in Blueprints
Modified Hyperbolic Decline
Modified Hyperbolic decline model that transitions from hyperbolic to exponential decline at a specified terminal decline rate. This addresses the unrealistic EUR predictions from pure hyperbolic decline with high b-factors.