Mechanistic studies of enhanced oil recovery by imidazolium-based ionic liquids as novel surfactants

다국어 초록 (Multilingual Abstract)

Ionic liquids are recently considered as an alternation to surfactants for their application in enhanced oil recovery (EOR) because of their promising surface-active properties. In the present study, the ability of a series of synthesized ionic liquids (C8mimBF4, C10mimBF4 and C12mimBF4) to reduce interfacial tension (IFT) and change the wettability of oil-wet rock have been investigated. Results demonstrated that all three synthesized ionic liquids enhanced interfacial properties and rock-wetting characteristics. The ionic liquids were able to significantly reduce IFT and remained stable at high temperature and saline conditions. Addition of organic alkali also showed a synergistic effect on IFT reduction between crude oil and ionic liquid solution. FTIR and zeta potential measurements were conducted to establish the mechanism of wettability alteration of oil-wet rock. Emulsification tests confirmed the capability of the ionic liquids to emulsify the trapped oil, which is an important mechanism of chemical EOR. The loss of ionic liquids by adsorption on rock surface was studied, and the adsorption data were analyzed by Langmuir and Freundlich models. Microemulsion study showed Winsor type III behavior with ultra-low IFT, which is beneficial for EOR application. Sand pack flooding experiments were conducted to study the EOR efficiency using the synthesized ionic liquids and around 32.28% additional recovery was observed after the conventional water flooding with injection of ionic liquid, polymer and alkali slugs.

참고문헌 (Reference)

1 S. Kumar, 157 : 696-, 2017

2 P. Shen, 14 : 237-, 2009

3 A. Muggeridge, 372 : 20120320-, 2006

4 M.S. Emad Al, 4 (4): 4-, 2013

5 A. Gurgel, 2 (2): 83-, 2008

6 A.M. Atta, 10 (10): 6106-, 2015

7 M.Z. Erincik, Society of Petroleum Engineers 9-, 2017

8 Y. Bai, 31 : 5860-, 2017

9 S. Yu, 51 (51): 3278-, 2017

10 J. Li, 5 (5): 20398-, 2017

11 J.R. Barnes, Society of Petroleum Engineers 2008

12 N. Nguyen, 2011

13 J.P. Hallett, 111 (111): 3508-, 2011

14 M.G. Freire, 314 (314): 621-, 2007

15 T. Welton, 99 (99): 2071-, 1999

16 S. Sakthivel, 30 (30): 2514-, 2016

17 S. Sakthivel, 191 : 239-, 2017

18 L. Shi, 116 : 2162-, 2012

19 P. Pillai, 1321-, 2017

20 A.K. Manshad, 248 : 153-, 2017

21 H. Gong, 488 : 28-, 2016

22 J. Bowers, 20 (20): 309-, 2004

23 S.K. Nandwani, 516 : 383-, 2017

24 L. Alonso, 1729-, 2007

25 N.K. Dimov, 256 : 23-, 2002

26 B. Hou, 330 : 56-, 2015

27 A. Kumar, 243 : 61-, 2017

28 M. Blesic, 9 (9): 481-, 2007

29 A.S. Hanamertani, 2017

30 H. Zhao, 45 (45): 49-, 2006

31 M.S. Kamal, 31 : 7701-, 2017

32 R. Gupta, Society of Petroleum Engineers 2008

33 Z. Wu, 4 (4): 9-, 2014

34 X. Zhao, 34 (34): 756-, 2013

35 Y. Bai, 31 (31): 5860-, 2017

36 S. Kumar, 372 : 42-, 2016

37 S. Saraji, 434 : 260-, 2013

38 M. Markiewicz, 90 (90): 706-, 2013

39 Z. Qi, 27 (27): 7354-, 2013

40 K. Jarrahian, 1-, 2010

41 R. Zhang, 123-126 : 2006

42 Y. Lin, 106 (106): 10834-, 2002

43 A. Bera, 383 : 114-, 2011

44 C. Yuan, 29 : 6165-, 2015

45 K. Spildo, 117 : 8-, 2014

46 S.S.K. Sim, 1-, 2014

47 C. Huh, 71 (71): 408-, 1979

48 N. Pal, 62 (62): 1278-, 2017

49 M. Mavaddat, Society of Petroleum Engineers 2015

50 Sudhir Kumar, "Synthesis and evaluation of physicochemical properties of anionic polymeric surfactant derived from Jatropha oil for application in enhanced oil recovery" 한국공업화학회 43 : 106-116, 2016

51 Mohammed Said Benzagouta, "Ionic liquids as novel surfactants for potential use in enhanced oil recovery" 한국화학공학회 30 (30): 2108-2117, 2013

52 Z. Tan, "Ion. Liq. Appl. Perspect." 3-, 2011

53 J. Eastoe, "Colloid Science" Blackwell Publishing Ltd 2005

54 J. Eastoe, "Colloid Science" Blackwell Publishing Ltd. 2005

55 S.P. Kelley, "Application of Ionic Liquids on Rare Earth Green Separation and Utilization" Springer Berlin Heidelberg 2016