Residual Oil Saturationat Colliver Carter #1 CO2 I
Lab core plug floods Sor5PV = 24-31%
Resistivity logs Sor = 30-40%
(with lab measured Archie parameters and water salinity)
Simulation, material balance Sorw = 30-36%
Production rate So=30-40%
(1BO/50BW) consistent with relative permeability at So=30-40%
Routine Core Analysis Sor = 29%
High Pressure Core So = 11%
(Core extensively deconsolidated and possibly extensively flushed)