Flow Regime Comparison
Spreadsheet
32 rows x 4 columns
| A | B | C | D | |
|---|---|---|---|---|
| 1 | Flow Regime Comparison - Darcy Flow | |||
| 2 | Reservoir Properties | |||
| 3 | Reservoir Pressure | 3500 | psia | |
| 4 | Permeability | 100 | md | |
| 5 | Net Pay | 50 | ft | |
| 6 | Drainage Radius | 2000 | ft | |
| 7 | Wellbore Radius | 0.354 | ft | |
| 8 | Oil Viscosity | 2 | cp | |
| 9 | Formation Volume Factor | 1.25 | rb/stb | |
| 10 | Skin Factor | 0 | - | |
| 11 | Porosity | 0.2 | fraction | |
| 12 | Total Compressibility | 1E-05 | 1/psi | |
| 13 | Time (for transient) | 30 | days | |
| 14 | ||||
| 15 | Productivity Index Comparison | |||
| 16 | Flow Regime | PI (stb/d/psi) | Relative to PSS | |
| 17 | Transient (TF) | 1.878726159 | 1.046429568 | |
| 18 | Steady State (SS) | 1.639508551 | 0.9131880222 | |
| 19 | Pseudosteady State (PSS) | 1.795367998 | 1 | |
| 20 | ||||
| 21 | Flow Rate at Different Pwf | |||
| 22 | Pwf (psia) | TF Rate | SS Rate | PSS Rate |
| 23 | 3000 | 939.3630793 | 819.7542755 | 897.6839989 |
| 24 | 2500 | 1878.726159 | 1639.508551 | 1795.367998 |
| 25 | 2000 | 2818.089238 | 2459.262827 | 2693.051997 |
| 26 | 1500 | 3757.452317 | 3279.017102 | 3590.735996 |
| 27 | 1000 | 4696.815397 | 4098.771378 | 4488.419995 |
| 28 | ||||
| 29 | Summary | |||
| 30 | Max Rate (TF) | 4696.815397 | stb/d | |
| 31 | Max Rate (SS) | 4098.771378 | stb/d | |
| 32 | Max Rate (PSS) | 4488.419995 | stb/d |
Description
Compare well productivity under different flow regimes: pseudosteady state (bounded reservoir), steady state (constant pressure boundary), and transient (infinite-acting). Understanding flow regime impacts is essential for accurate production forecasting.
Flow Regimes:
- Transient (TF): Early time, infinite-acting reservoir
- Steady State (SS): Constant pressure boundary (aquifer support)
- Pseudosteady State (PSS): Closed boundary, pressure declining uniformly
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for Flow Regime Comparison
- Click on the blueprint to preview the spreadsheet template
- Click Insert to place it into your worksheet. Modify the input values to match your data.