Patent ID: 8833449
Filing Date: 2014-09-16
Classification: B01F,C03C,C08F,C09K,C25C

Abstract:
1. A method of treating a hydrocarbon-bearing formation, the method comprising: contacting the hydrocarbon-bearing formation with a treatment composition comprising solvent and a fluorinated amphoteric compound, wherein the hydrocarbon-bearing formation comprises carbonate, and wherein the fluorinated amphoteric compound is selected from the group consisting of: wherein Rf is independently fluoroalkyl having up to 10 carbon atoms or a polyfluoropolyether group; each Rf X is —SO Y is —N(R) Y′ is —P(O)(OM) each Q is independently —SO each W is independently alkylene, arylalkylene, or arylene, wherein alkylene and arylalkylene are each optionally interrupted by —O— or —S— and optionally substituted by hydroxyl; Z is —N each V is independently alkylene, arylalkylene, or arylene, wherein alkylene and arylalkylene are each optionally interrupted by —O— or —S— and optionally substituted by hydroxyl; each R is independently hydrogen, alkyl, or aryl, wherein alkyl may optionally be interrupted by —O— or substituted with hydroxyl or aryl, or two R groups taken together with the N atom to which they are attached can form a heterocyclic ring having up to six carbon atoms and optionally containing —O— or —S—; R′ is hydrogen, alkyl having up to 6 carbon atoms, or aryl; each R each Q