Oil lost in migration

Input(s)

h: Average Change in Depth of the Gas-Oil Contact (ft)

$\emptyset$: Porosity (fraction)

A: Average Cross-Sectional Area of the Gas-Oil Contact (acres)

$\mathrm{S}_{\text {org }}$: Residual Oil Saturation in The Gas Cap Shrinking Zone (fraction)

$\mathrm{B}_{\mathrm{oa}}$: Oil Formation Volume Factor at Abandonment (bbl/STB)

Output(s)

O: Volume of Oil Lost (bbl)

Formula(s)

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 5, Page: 333.