PO.IPR.GW.D.SI
Description
Calculates Non-Darcy flow coefficient (D) for gas well turbulence effects, [1/(sm3/d)]. Used as input to GW.PSS.Rate.NonDarcy (SI units).
Formula
=LAMBDA(Rw, h, h_perf, SG_gas, Ug, K, LET(
Rw_ft, PO.UnitConverter(Rw, "m", "ft"),
h_ft, PO.UnitConverter(h, "m", "ft"),
h_perf_ft, PO.UnitConverter(h_perf, "m", "ft"),
result_1Mscf, PO.IPR.GW.D(Rw_ft, h_ft, h_perf_ft, SG_gas, Ug, K),
result_1Mscf * PO.UnitConverter(1, "sm3/d", "Mscf/d")))Parameters
| Parameter | Unit | Description |
|---|---|---|
Rw |
m | Wellbore radius, [m] |
h |
m | Reservoir thickness, [m] |
h_perf |
m | Perforated reservoir thickness, [m] |
SG_gas |
- | Gas specific gravity, [dimensionless] |
Ug |
- | Gas viscosity, [cP] |
K |
- | Near wellbore permeability, [mD] |
Examples
| Invocation | Expected |
|---|---|
=PO.IPR.GW.D.SI(0.0762, 30.48, 15.24, 0.65, 0.015, 50) |
0.000281317229 |