Undersaturated oil:
\displaystyle p \geq p_b
B_o (p, T) = B_{ob}(T) \cdot \exp \big[ c_o(p) \cdot (p_b - p ) \big] | B_{ob}(T) = B_o (p_b, T) |
Saturated oil:
\displaystyle p \leq p_b
See Also
Petroleum Industry / Upstream / Petroleum Engineering / Subsurface E&P Disciplines / Reservoir Engineering (RE) / PVT correlations