Enhanced Oil Recovery from Low Permeability Carbonated Rocks by Imbibitions of Surfactant Solutions

Document Type : Research Article


IOR Research Institute, NIOC,Tehran, I.R. IRAN


The enhanced oil recovery from oil wet carbonate rocksusing wettabilityalteration mechanism by surface activecompounds was investigated. The imbibition tests were done by two typicalanionicand ationicsurfactants,sodium dodecyl sulfateandhexadecyltrimethylammonium bromide, respectively. The experiments were carried out at one of the Iranian oil reservoir condition. The efficiency ofoil recoverybyanionicsurfactant was approximatelyequal to brine imbibition at reservoir condition. The results showed that the cationic surfactants have the high potential for enhanced oil recovery byspontaneousimbibition.  


Main Subjects

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