Skin Factor Effect
Spreadsheet
24 rows x 3 columns
| A | B | C | |
|---|---|---|---|
| 1 | Skin Factor Effect | ||
| 2 | |||
| 3 | Reservoir Properties | ||
| 4 | Permeability | 50 | mD |
| 5 | Porosity | 0.2 | fraction |
| 6 | Viscosity | 1.5 | cP |
| 7 | Total Compressibility | 1.5E-05 | 1/psi |
| 8 | Wellbore Radius | 0.35 | ft |
| 9 | |||
| 10 | Well Parameters | ||
| 11 | Elapsed Time | 10 | h |
| 12 | Dimensionless Storage (CD) | 100 | dimensionless |
| 13 | |||
| 14 | Dimensionless Time | ||
| 15 | tD | 239183.6735 | dimensionless |
| 16 | |||
| 17 | Skin Factor Comparison | ||
| 18 | No Skin (S=0) | 6.594280107 | dimensionless |
| 19 | Damaged (S=5) | 11.59216686 | dimensionless |
| 20 | Stimulated (S=-2) | 4.595121642 | dimensionless |
| 21 | |||
| 22 | Additional Pressure Drop | ||
| 23 | Due to Damage | 4.997886755 | dimensionless |
| 24 | Saved by Stimulation | 1.999158466 | dimensionless |
Description
Demonstrates the effect of skin factor on wellbore pressure. Positive skin indicates damage, negative skin indicates stimulation.
Parameters:
- tD: Dimensionless time
- CD: Dimensionless wellbore storage
- S: Skin factor (positive = damage, negative = stimulation)
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for Skin Factor Effect
- 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.