Hydrocarbon deposit with initial formation pressure below bubble point pressure and presence of Gas Cap.

Under
depletion the petroleum reservoir tend to face gas cap expansion if reservoir pressure is declining.


Saturated oil reservoirs are classified into two categories:

Gas Cap Oil Reservoir

Oil Rim Reservoir

See Also


Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petroleum Geology / Petroleum Reservoir / Hydrocarbon reservoir / Oil Reservoir

Hydrocarbon Reserves ][ Depletion ]

Gas Cap Expansion ]