Oil displacement enhanced by lyotropic liquid crystals in highly saline media
 Liquid crystals are used in place of microemulsions in a process for chemically enhanced oil recovery. The liquid crystals compositions contain ethoxylated surfactants having appropriately balanced hydrophilic-lipophilic properties. These compositions result in a faster and greater recovery of crude oil as compared to microemulsions. 
Exxon Research and Engineering Co.
C Y
C09K Y10S
inventional additional
Alexis A. John Helen Paul
Oswald Huang Huang Valint, Jr.