Synthesis and properties of a novel alkyl-hydroxyl-sulfobetaine zwitterionic surfactant for enhanced oil recovery

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Abstract

A series of novel alkyl-hydroxyl-sulfobetaine zwitterionic surfactants (C n HSB, n = 12, 14, 16 or 18) were synthesized and their applicability for chemical enhanced oil recovery was studied. The interfacial tension measurements between C n HSB and Shengli crude oils from four different blocks indicated that C 16 HSB and C 18 HSB are adapted to high-temperature and high-salinity reservoirs conditions. The interfacial activity was also maintained high after interacting with sand. Furthermore, C 16 HSB and C 18 HSB are compatible with partially hydrolyzed polyacrylamide (HPAM). Physical simulation experiment showed that the oil recovery of surfactant/polymer flooding (0.3 wt% C 18 HSB + 0.15 wt% HPAM) can be improved by 18.6 % over water flooding.

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Guo, S., Wang, H., Shi, J., Pan, B., & Cheng, Y. (2015). Synthesis and properties of a novel alkyl-hydroxyl-sulfobetaine zwitterionic surfactant for enhanced oil recovery. Journal of Petroleum Exploration and Production Technology, 5(3), 321–326. https://doi.org/10.1007/s13202-014-0141-y

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