Gas well flow rate for pseudosteady state condition using Darcy flow approximation, [mscf/d]

Description:

Excel Function Syntax:

GasFlowRatePSS(K, h, P_average, Pwf, zFactor, Ug, Re, Rw, S, T)

Online Calculator:

Parameter	Value	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]
Result

All functions from WellFlow category

#	Function	Description
1	GasFlowRatePSS	Gas well flow rate for pseudosteady state condition using Darcy flow approximation, [mscf/d]
2	GasFlowRatePSSNonDarcy	Gas well stabilized flow rate for pseudosteady state condition, with Non-Darcy flow equation, [mscf/d]
3	TimeToPSSGas	Time to stabilized flow in gas well, [h]
4	NonDarcyCoefficient	Correlation for estimating non-Darcy coefficient, [d/mscf]
5	DrainageRadius	Effective drainage radius, [ft]
6	DrainageAreaHorWell1	The horizontal well drainage area is represented by two half circles of radius b at each end and a rectangle, of dimensions L(2b), in the center. (Joshi Method 1), [acres]
7	DrainageAreaHorWell2	The horizontal well drainage area is an ellipse. (Joshi Method 2), [acres]
8	EffectiveWellboreRadius	Effective wellbore radius, [ft]
9	EquivalentSkinFactor	Equivalent skin factor for vertical well with hydraulic fracture.
10	FlowRateTFVogel	Vogel inflow performance for transient-state flow, [STB/d]
11	FlowRateTF	Transient-state production flow rate, [STB/d]
12	ProdIndexTF	Transient state productivity index for vertical well, [STB/(d.psi)]
13	FlowRatePSSVogel	Vogel inflow performance for pseudosteady state flow, [STB/d]
14	FlowRatePSS	Pseudosteady state production flow rate, [STB/d]
15	TimeToPSS	Time to pseudosteady state for regular shape drainage area, [h]
16	ProdIndexPSS	Pseudosteady state productivity index for vertical well, [STB/(d.psi)]
17	FlowRateSSVogel	Vogel inflow performance for Steady state flow, [STB/d]
18	FlowRateSS	Steady state production flow rate, [STB/d]
19	ProdIndexSS	Steady state productivity index for vertical well, [STB/(d.psi)]
20	ProdIndexHorWellBorisov	Horizontal well productivity index under steady state flow. Borisov method for well in an isotropic reservoir, [STB/(d.psi)]
21	ProdIndexHorWellGRJ	Horizontal well productivity index under steady state flow. The Giger-Reiss-Jourdan method for well in an anisotropic reservoir, [STB/(d.psi)]
22	ProdIndexHorWellJoshi	Horizontal well productivity index under steady state flow. The Joshi method for well in an anisotropic reservoir, [STB/(d.psi)]
23	ProdIndexHorWellRD	Horizontal well productivity index under steady state flow. The Renard-Dupuy method for well in an anisotropic reservoir, [STB/(d.psi)]
24	ProdIndexHorWellBO	Pseudosteady state productivity index for horizontal well, [STB/(d.psi)] The Babu Odeh method for a box-shaped , anisotropic reservoir, with a well placed parallel to X(box length)-direction.
25	ProdIndexHorWellBO2	Pseudosteady state productivity index for horizontal well, [STB/(d.psi)] The Babu Odeh method for a box-shaped , anisotropic reservoir, with a well centrally placed parallel to X(box length)-direction.

GasFlowRatePSS function