Process of natural gas invasion from Gas Cap into saturated oil reservoir or aquifer due to pressure depletion.
Because the gas mobility is much higher than that of oil and water the Gas Cap responds to pressure depletion almost instantaneously which provides a strong reservoir flow drive mechanism
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Field Study & Modelling
[ Depletion ] [ Saturated oil reservoir ]