PO.DCA.ModHyp.D Function
Description:
Calculates instantaneous decline rate D(t) for Modified Hyperbolic decline, [1/T]. Computed numerically.
Excel Function Syntax:
=PO.DCA.ModHyp.D(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]. |