Reservoir Drive Mechanism Indices
Spreadsheet
25 rows x 3 columns
| A | B | C | |
|---|---|---|---|
| 1 | Reservoir Drive Mechanism Analysis | ||
| 2 | Reservoir Parameters | ||
| 3 | N (OOIP) | 50 | MMSTB |
| 4 | m (gas cap ratio) | 0.25 | - |
| 5 | Boi | 1.38 | RB/STB |
| 6 | |||
| 7 | Production Data | ||
| 8 | F (underground withdrawal) | 4.025 | MMRB |
| 9 | |||
| 10 | Expansion Terms | ||
| 11 | Eo | 0.025 | RB/STB |
| 12 | Eg | 0.15 | RB/STB |
| 13 | Efw | 0.002 | RB/STB |
| 14 | We (water influx) | 0.8 | MMRB |
| 15 | |||
| 16 | Drive Indices | ||
| 17 | Mechanism | Index | Contribution (%) |
| 18 | Depletion Drive (DDI) | 0.3105590062 | 31.05590062 |
| 19 | Gas Cap Drive (GDI) | 0.4658385093 | 46.58385093 |
| 20 | Water Drive (WDI) | 0.198757764 | 19.8757764 |
| 21 | Compressibility (CDI) | 0.0248447205 | 2.48447205 |
| 22 | Total | 1 | 100 |
| 23 | |||
| 24 | Interpretation | ||
| 25 | Dominant Drive | Gas Cap |
Description
Calculate drive mechanism indices to identify the dominant energy source driving oil production. Drive indices sum to 1.0 and indicate relative contribution of each mechanism.
Drive Mechanisms:
- DDI: Depletion Drive Index (solution gas)
- GDI: Gas Cap Drive Index
- WDI: Water Drive Index
- CDI: Compressibility Drive Index
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for Reservoir Drive Mechanism Indices
- 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.