Description:

Pseudosteady state production flow rate, [STB/d]

Excel Function Syntax:

FlowRatePSS(J, P_average, Pwf)

Online Calculator:

Parameter Value Description
J Productivity index for pseudosteady state flow, [STB/(d.psi)]
P_average Average reservoir pressure, [psia]
Pwf Bottom-hole flowing pressure, [psia]
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 ProdIndexHorWellBorisov Horizontal well productivity index under steady state flow. Borisov method for well in an isotropic reservoir, [STB/(d.psi)]
6 ProdIndexHorWellGRJ Horizontal well productivity index under steady state flow. The Giger-Reiss-Jourdan method for well in an anisotropic reservoir, [STB/(d.psi)]
7 ProdIndexHorWellJoshi Horizontal well productivity index under steady state flow. The Joshi method for well in an anisotropic reservoir, [STB/(d.psi)]
8 ProdIndexHorWellRD Horizontal well productivity index under steady state flow. The Renard-Dupuy method for well in an anisotropic reservoir, [STB/(d.psi)]
9 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.
10 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.
11 DrainageRadius Effective drainage radius, [ft]
12 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]
13 DrainageAreaHorWell2 The horizontal well drainage area is an ellipse. (Joshi Method 2), [acres]
14 EffectiveWellboreRadius Effective wellbore radius, [ft]
15 EquivalentSkinFactor Equivalent skin factor for vertical well with hydraulic fracture.
16 FlowRatePSSVogel Vogel inflow performance for pseudosteady state flow, [STB/d]
17 FlowRatePSS Pseudosteady state production flow rate, [STB/d]
18 TimeToPSS Time to pseudosteady state for regular shape drainage area, [h]
19 ProdIndexPSS Pseudosteady state productivity index for vertical well, [STB/(d.psi)]
20 FlowRateSSVogel Vogel inflow performance for Steady state flow, [STB/d]
21 FlowRateSS Steady state production flow rate, [STB/d]
22 ProdIndexSS Steady state productivity index for vertical well, [STB/(d.psi)]
23 FlowRateTFVogel Vogel inflow performance for transient-state flow, [STB/d]
24 FlowRateTF Transient-state production flow rate, [STB/d]
25 ProdIndexTF Transient state productivity index for vertical well, [STB/(d.psi)]