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By uncertainty (SPE)
| 2P = Proven P90 + Possible P50 |
|
|---|
| 1P = Proven P90 | Probable P50 | Possible P10 |
|---|
| Proven developed (PD) | Proven Undeveloped (PUD) |
|
|
By complexity
| Conventional | Unconventional |
|---|
| Gas | Condensate
| Oil | Heavy Oil | Shale Gas | Shale Oil | Bitumen |
By oil density
| Light crude | Medium oil | Heavy crude | Extra heavy crude |
|---|
| kg/m3 | < 870 | 870 - 920 | 920 - 1000 | > 1000 |
|---|
| °API | > 31.1 | 22.3 - 31.1 | 10 - 22.3 | < 10 |
|---|
By reservoir homogeneity
| Matrix | Fissured | Fractured | Faulted | Compartmentalized |
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology
[ Russian Reserves Categories ]
References
