PO.IPR.GW.D Function
Description:
Calculates Non-Darcy flow coefficient (D) for gas well turbulence effects, [D/mscf]. Used as input to GW.PSS.Rate.NonDarcy.
Excel Function Syntax:
=PO.IPR.GW.D(Rw, h, h_perf, SG_gas, Ug, K)
Parameters:
| Parameter | Description |
|---|---|
| Rw | Wellbore radius, [ft]. |
| h | Reservoir thickness, [ft]. |
| h_perf | Perforated reservoir thickness, [ft]. |
| SG_gas | Gas specific gravity, [dimensionless]. |
| Ug | Gas viscosity, [cP]. |
| K | Near wellbore permeability, [mD]. |
Used in Blueprints
Gas Well Deliverability
Gas well deliverability analysis comparing Darcy flow (low rate) with non-Darcy flow that includes turbulence effects at high rates. The non-Darcy coefficient D accounts for inertial resistance near the wellbore.