화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.59, 286-296, March, 2018
DOI10.1016/j.jiec.2017.10.034  Export Citation
Influence of emulsification, interfacial tension, wettability alteration and saponification on residual oil recovery by alkali flooding
Rahul Saha, Ramgopal V.S. Uppaluri,, and Pankaj Tiwari†
  • Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
E-mail:
The current study examines the synergy of interfacial tension, emulsification, wettability alteration and extent of saponification during alkali flooding for light to moderate crude oil. The oil recovered in the effluent stream during NaOH flooding was analysed to observe the quality of water in oil (W/O) emulsion produced and the extent of saponification. Core flooding experiments showed higher oil recovery of 25.48% initial oil in place (IOIP) at 1 wt% NaOH. Effects of slug volume and injection pattern during NaOH flooding experiments were also investigated. Further, contact angle changes the wettability from water wet to favourable intermediate wet.
Keywords:Alkali flooding;W/O emulsion;Interfacial tension;Saponification;Wettability alteration
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