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Interfacial Properties, Wettability Alteration and Emulsification Properties of an Organic Alkali–Surface Active Ionic Liquid System: Implications for Enhanced Oil Recovery
| Content Provider | MDPI |
|---|---|
| Author | Tackie-Otoo, Bennet Nii Mohammed, Mohammed Abdalla Ayoub Zalghani, Hazman Akmal Bin Mohd Hassan, Anas M. Murungi, Pearl Isabellah Tabaaza, Grace Amabel |
| Copyright Year | 2022 |
| Description | Combinatory flooding techniques evolved over the years to mitigate various limitations associated with unitary flooding techniques and to enhance their performance as well. This study investigates the potential of a combination of 1-hexadecyl-3-methyl imidazolium bromide $(C_{16}$mimBr) and monoethanolamine (ETA) as an alkali–surfactant (AS) formulation for enhanced oil recovery. The study is conducted comparative to a conventional combination of cetyltrimethylammonium bromide (CTAB) and sodium metaborate $(NaBO_{2}$). The study confirmed that $C_{16}$mimBr and CTAB have similar aggregation behaviors and surface activities. The $ETA–C_{16}$mimBr system proved to be compatible with brine containing an appreciable concentration of divalent cations. Studies on interfacial properties showed that the $ETA–C_{16}$mimBr system exhibited an improved IFT reduction capability better than the $NaBO_{2}$–CTAB system, attaining an ultra-low IFT of 7.6 × $10^{−3}$ mN/m. The IFT reduction performance of the $ETA–C_{16}$mimBr system was improved in the presence of salt, attaining an ultra-low IFT of 2.3 × $10^{−3}$ mN/m. The system also maintained an ultra-low IFT even in high salinity conditions of 15 wt% NaCl concentration. Synergism was evident for the $ETA–C_{16}$mimBr system also in altering the carbonate rock surface, while the wetting power of CTAB was not improved by the addition of $NaBO_{2}$. Both the $ETA–C_{16}$mimBr and $NaBO_{2}$–CTAB systems proved to form stable emulsions even at elevated temperatures. This study, therefore, reveals that a combination of surface-active ionic liquid and organic alkali has excellent potential in enhancing the oil recovery in carbonate reservoirs at high salinity, high-temperature conditions in carbonate formations. |
| Starting Page | 2265 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules27072265 |
| Journal | Molecules |
| Issue Number | 7 |
| Volume Number | 27 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-31 |
| Access Restriction | Open |
| Subject Keyword | Molecules Petroleum Engineering Surface-active Ionic Liquid Organic Alkali Interfacial Tension Wettability Alteration Emulsification Alkali–surfactant Flooding |
| Content Type | Text |
| Resource Type | Article |
