Table 4 Key parameters of the Ahnet–Gourara potential reservoirs for the evaluation of the CO2 storage capacity input data from Sonatrach
From: CO2-storage assessment and effective capacity in Algeria
Site name | Avarage reservoir depth (m) | Area (km2) | Effective thickness (m) | Porosity (%) | Geothermal gradient (°C/km) | Storage capacity (Mt) Seff = 1 % | Storage capacity (Mt) |
|---|---|---|---|---|---|---|---|
Seff = 5 % |  |  |  |  |  |  |  |
Akablie 1 | 1250 | 100 | 160 | 15 | 30 | 23.3 | 116.4 |
Akablie 2 | 1165 | 480 | 500 | 15 | 30.5 | 345.6 | 1728 |
Tidikelt Nord | 1200 | 1150 | 250 | 18 | 30 | 476.1 | 2380.5 |
Ahnet centre | 1300 | 180 | 120 | 14 | 31.04 | 27.8 | 139.1 |
Amsari | 1000 | 120 | 100 | 13 | 30 | 14.3 | 71.4 |
Idjarane west | 1100 | 80 | 80 | 16 | 30 | 9.4 | 46.8 |
Timimoune1 | 1550 | 100 | 75 | 13 | 30.2 | 8.6 | 42.9 |
Timimoune2 | 1800 | 800 | 50 | 14 | 30.2 | 49.8 | 249.2 |
Timimoune saouth | 1500 | 95 | 68 | 17 | 30.3 | 10.3 | 51.3 |
Gourara 1 | 1400 | 1000 | 50 | 8 | 31.4 | 34.0 | 170 |
Gourara 2 | 1320 | 168 | 90 | 13 | 31.4 | 17.1 | 85.5 |
Gourara 3 | 1360 | 180 | 90 | 12 | 31.5 | 16.3 | 81.6 |
Total | Â | Â | Â | Â | Â | 1032.6 | 5162.8 |