Abstract

Worldwide carbonates hold almost 60% of oil reserves. The inherent heterogeneity and wettability characteristics of carbonates make improving oil recovery (IOR) under conventional IOR practices a challenging task. In recent years, Low Salinity Water flooding (LSWF) has emerged as an attractive Enhanced Oil Recovery (EOR) mechanism involving complex Crude Oil-Brine-Rock (COBR) interactions for improving displacement efficiency by tuning the injection water salinity. Various case studies indicate incremental benefits up to 10% of OIIP in laboratory as well as in field trials in carbonates[4].