Excel Function
GasFlowRatePSSNonDarcy
Description:
Calculates gas well stabilized flow rate for pseudosteady state condition with Non-Darcy flow equation, [mscf/d].
Excel Function Syntax:
=GasFlowRatePSSNonDarcy(K, h, P_average, Pwf, zFactor, Ug, Re, Rw, S, T, D)
Parameters:
| Parameter | Description |
|---|---|
| K | Permeability, [mD]. |
| h | Reservoir height, [ft]. |
| P_average | Average reservoir pressure, [psia]. |
| Pwf | Bottom-hole flowing pressure, [psia]. |
| zFactor | Gas compressibility factor (Z), [dimensionless]. |
| Ug | Gas viscosity, [cP]. |
| Re | Drainage radius, [ft]. |
| Rw | Wellbore radius, [ft]. |
| S | Skin factor, [dimensionless]. |
| T | Reservoir temperature, [degR]. |
| D | Non-Darcy coefficient, [d/mscf]. |
Related Theory
1 item
Gas Well Deliverability
Well Performance
Related Functions
3 items
GasFlowRatePSS
Calculates gas well flow rate for pseudosteady state condition using Darcy flow approximation, [mscf/d].
NonDarcyCoefficient
Calculates correlation for estimating non-Darcy coefficient, [d/mscf].
TimeToPSSGas
Calculates time to stabilized flow in gas well, [h].
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