Van Everdingen-Hurst Aquifer Model
Spreadsheet
38 rows x 3 columns
| A | B | C | |
|---|---|---|---|
| 1 | Van Everdingen-Hurst Aquifer Model | ||
| 2 | Aquifer Properties | ||
| 3 | Aquifer Permeability | 75 | mD |
| 4 | Aquifer Thickness | 80 | ft |
| 5 | Aquifer Porosity | 0.2 | fraction |
| 6 | Total Compressibility | 7E-06 | 1/psi |
| 7 | Water Viscosity | 0.6 | cP |
| 8 | Reservoir Radius | 4000 | ft |
| 9 | Aquifer Outer Radius | 20000 | ft |
| 10 | Encroachment Angle | 360 | degrees |
| 11 | |||
| 12 | Aquifer Constant (U) | 2005.248 | RB/psi |
| 13 | Dimensionless Radius | 5 | - |
| 14 | |||
| 15 | Dimensionless Time Calculation | ||
| 16 | Time (days) | tD | |
| 17 | 30 | 1.061383929 | |
| 18 | 90 | 3.184151786 | |
| 19 | 180 | 6.368303571 | |
| 20 | 365 | 12.91350446 | |
| 21 | 730 | 25.82700893 | |
| 22 | |||
| 23 | Dimensionless Water Influx | ||
| 24 | Time (days) | WD (infinite) | WD (finite) |
| 25 | 30 | 1.628130667 | 1.628130667 |
| 26 | 90 | 3.330607244 | 3.330607244 |
| 27 | 180 | 5.367298889 | 0.4457942264 |
| 28 | 365 | 8.912524941 | 10.5772591 |
| 29 | 730 | 14.93776091 | 11.97717129 |
| 30 | |||
| 31 | Water Influx Calculation (dP = 200 psi) | ||
| 32 | dP | 200 | psi |
| 33 | Time (days) | We Infinite (RB) | We Finite (RB) |
| 34 | 30 | 652961.1528 | 652961.1528 |
| 35 | 90 | 1335738.703 | 1335738.703 |
| 36 | 180 | 2152553.072 | 178785.5962 |
| 37 | 365 | 3574364.562 | 4242005.532 |
| 38 | 730 | 5990783.036 | 4803439.754 |
Description
Calculate water influx using the Van Everdingen-Hurst (VEH) transient aquifer model. This rigorous method handles both infinite and finite aquifers with time-dependent pressure response.
VEH Model:
- Based on radial diffusivity equation solutions
- Uses dimensionless time and radius
- Applicable to early-time transient behavior
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for Van Everdingen-Hurst Aquifer Model
- 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.