API RECOVERY FACTOR CORRELATION

API Correlation for Reservoir with Water Drive

The input parameters to estimate the recovery factor from a reservoir are: PVT data, rock permeability, relative permeability and reservoir pressure among others.

Where:

FR: Recovery Factor, %
phi: Porosity, decimal
Sw: Water saturation, decimal
k: Permeability, md
Swi: Initial water saturation , decimal
Pi: Initial reservoir pressure, psi
Pa: Abandonment reservoir pressure, psi
Bo: Formation volume factor, rb/stb