CORRELATIONS FOR ESTIMATING CHANGE IN RESIDUAL OIL SATURATION DURING LOW SALINITY WATER FLOODING

Prior to embarking on a laboratory and subsequently pilot test for potential improved oil recovery scheme in green or brown field, it is important have sense of gains from the available options. This usually done using correlations. Whereas there had been existing models use making these approximations [1], this work has developed robust correlation estimating reduction residual saturation post OPTSWF (and consequently additional recovery) as function change IFT, salinity, porosity, permeability, start saturation, API gravity crude oil. was field Niger Delta. The model tested against data showed good with coefficient ranging 99.36% 99.89%. Also, performance alongside that proposed by [1] all cases, performed better lower RMS errors.