C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 309/10 (2006.01) B01F 17/00 (2006.01) C09K 8/584 (2006.01) E21B 43/22 (2006.01)
Patent
CA 2078111
2078111 9115290 PCTABS00007 The present invention relates to a surfactant having general formula (I) where R is a hydrocarbon containing 4-6 carbon atoms; r is 0 or 1; Y is an alkylene group having 1-3 carbon atoms and optionally containing a hydroxyl group; m1 and m2, being the same or different, are 0 or 1, both m1 and m2 not being 0 at the same time; A is an alkyleneoxy group derived from an alkylene oxide having 2-3 carbon atoms; and p has an average value from 0 to 1.9; or a salt thereof. The surfactant and a microemulsion containing said surfactant are suitable for use in enhanced oil recovery.
Gilje Eimund
Hellberg Per-Erik
Holmberg Krister
Sonesson Clas
Svennberg Stig
Berol Nobel Ab
Blake Cassels & Graydon Llp
Den Norski Stats Oljeselskap A.s
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