Enhanced Oil Recovery Using Polyaniline‐Sodium Dodecyl Sulfate‐Sodium Hydroxide Flooding

• Published in: Chemical engineering & technology Vol. 45; no. 3; pp. 497 - 507
• Main Authors: Rishi, Lomas, Mandal, Monisha Mridha
• Format: Journal Article
• Language: English
• Published: Frankfurt Wiley Subscription Services, Inc 01.03.2022
• Subjects: Addition polymerization; Alkalis; Caustic soda; Enhanced oil recovery; Oil fields; Polyacrylamide; Polyanilines; Polymer flooding; Polymers; Sodium; Sodium dodecyl sulfate; Sodium hydroxide; Surfactants
• ISSN: 0930-7516; 1521-4125
• DOI: 10.1002/ceat.202100434

The possibility of using polyaniline (PANI), sodium dodecyl sulfate (SDS) surfactant, sodium hydroxide (NaOH), and their combinations in the enhanced oil recovery process were evaluated with a STARS computer modelling group simulator. The effect of the addition of polymers, such as hydrolyzed polyacrylamide and PANI, surfactant, alkali, and temperature was investigated. Oil saturation contours showed that the residual oil remaining in the oil field was minimum when NaOH‐SDS‐PANI was injected with water. In the case of polymer flooding, the oil recovery increased with higher polymer concentration. The performance of alkali‐surfactant‐polymer flooding indicated that the addition of polymers, surfactants, and alkalis in water improved the oil productivity. PANI was found to be efficient in the recovery of oil especially at higher temperatures. The enhanced oil recovery performance of polymer, surfactant, and alkali was modeled for different concentrations and temperatures. Continuity, momentum, and energy equations were applied and solved numerically with the STARS computer modelling group simulator. The findings may provide the potential for a more sustainable approach to improve the crude oil recovery process.