炭酸塩岩における低塩分濃度水攻法メカニズム解明に向けた取り組み

抄録

We present the main reason behind two low-salinity waterflooding (LSW）coreflood tests, that failed to demonstrate promising EOR response. Repeating the coreflood tests using the acid-enriched oil and injecting the lowsalinity brine in the secondary and tertiary modes has led us that the total acid number (TAN）and the recovery mode appear to be the key successful factors for LSW in our carbonate system.