Saturated Oil Density (ρ_o,s)

The oil density at the bubble point is an important thermodynamic property required in reservoir simulation and production engineering.

At pressures below the bubble-point pressure and with reduction in pressure, gas comes out of solution. This gas release accounts for the reversal in the density versus pressure trend below the bubble-point pressure.

Reference: PVT Property Correlations, Ahmed El-banbi, 2018