Gas Reservoir Production Forecast
Spreadsheet
31 rows x 3 columns
| A | B | C | |
|---|---|---|---|
| 1 | Gas Reservoir Production Forecast | ||
| 2 | Reservoir Parameters | ||
| 3 | OGIP | 85 | Bscf |
| 4 | Initial Pressure | 4500 | psia |
| 5 | Initial Z-factor | 0.92 | - |
| 6 | Abandonment Pressure | 500 | psia |
| 7 | _1E9 | 1000000000 | (scf/Bscf conversion) |
| 8 | Forecast: Production at Target Pressure | ||
| 9 | Target Pressure (psia) | Z-factor (estimated) | Gp Forecast (Bscf) |
| 10 | 4000 | 0.93 | 10.25686977 |
| 11 | 3500 | 0.94 | 20.29550827 |
| 12 | 3000 | 0.95 | 30.12280702 |
| 13 | 2500 | 0.96 | 39.74537037 |
| 14 | 2000 | 0.97 | 49.16953036 |
| 15 | 1500 | 0.98 | 58.40136054 |
| 16 | 1000 | 0.985 | 67.35758601 |
| 17 | |||
| 18 | Forecast: Pressure at Target Production | ||
| 19 | Gp Target (Bscf) | Z-factor (estimated) | Pressure Forecast (psia) |
| 20 | 10 | 0.93 | 4013.746803 |
| 21 | 20 | 0.94 | 3515.984655 |
| 22 | 30 | 0.95 | 3006.713555 |
| 23 | 40 | 0.96 | 2485.933504 |
| 24 | 50 | 0.97 | 1953.644501 |
| 25 | 60 | 0.975 | 1402.653453 |
| 26 | |||
| 27 | Recovery Factor | ||
| 28 | Gp (Bscf) | RF (fraction) | RF (%) |
| 29 | 20 | 0.2352941176 | 23.52941176 |
| 30 | 40 | 0.4705882353 | 47.05882353 |
| 31 | 60 | 0.7058823529 | 70.58823529 |
Description
Forecast gas reservoir pressure and production using material balance equations. Given OGIP, predict pressure at future production levels or vice versa.
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for Gas Reservoir Production Forecast
- 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.