Interfacial tension (IFT) reduction and wettability alteration are major mechanisms to chemically enhanced oil recovery (CEOR) in carbonate reservoirs. The purpose of this research was to investigate the effects of different surfactants on IFT and wettability alteration. Four different surfactants including ionic liquids and zwitterionic surfactants, namely [C12mim]Cl, TR-880, NX-2760, and NX-1510, were used in this study. Reservoir core samples, formation brine and crude oil from the Karanj oil field, located in Iran were used. The results showed that the tested surfactants are capable of reducing IFT significantly, changing the wettability to greater hydrophilicity, thus potentially facilitating oil recovery.
|Number of pages||13|
|Journal||Energy Sources, Part A: Recovery, Utilization and Environmental Effects|
|Early online date||9 Aug 2019|
|Publication status||E-pub ahead of print - 9 Aug 2019|
The authors would like to gratefully acknowledge and show appreciation to the Department of Petroleum Engineering, Faculty of Engineering, Marvdasht Islamic Azad University, Marvdasht, Iran and to Fars EOR Technologies Company, for the provision of the laboratory facilities necessary for completing this work.
This work was supported by the Islamic Azad University [N/A];Fars EOR Technologies Company [N/A].
- Chemical EOR
- interfacial tension
- ionic liquid
- zwitterionic surfactant
- ENHANCED OIL-RECOVERY
- SPONTANEOUS IMBIBITION