Patent ID: 8268758
Filing Date: 2012-09-18
Classification: C09K

Abstract:
1. A method comprising: providing an emulsified treatment fluid comprising an oleaginous phase, an aqueous phase, a consolidating agent in the discontinuous phase of the emulsified fluid, and an emulsifying agent that comprises at least one convertible surfactant described by a formula selected from the group consisting of: wherein R 1 , R 2 and R 3 are independently H, alkyl, aryl, polyether, or oxyalkylate group and X may be a halogen counterion, a sulfate ion, a tosylate ion, a mesylate ion, or the like; wherein R 1 is an alkyl group that is linear or nonlinear comprising 6-22 carbon atoms, aryl group, and alkyl aryl group; R 2 and R 3 are independently selectable from an alkyl group of 1-6 carbon chains, R 4 and R 5 are independently H, alkyl, aryl, polyether, or alkyloxyalkylate group and X may be a halogen counterion, a sulfate ion, a tosylate ion, a mesylate ion, or the like; and wherein R 1 , R 2 , R 3 , and R 4 are not hydrogen, and wherein R 1 , R 2 , R 3 , and R 4 are carbons atoms linked to any other suitable group and X may be a halogen counterion, a sulfate ion, a tosylate ion, a mesylate ion, or the like; and placing the emulsified treatment fluid in a subterranean formation, converting the convertible surfactant to an amphoteric or zwitterionic surfactant thereby breaking the emulsion and releasing the consolidation agent to treat the subterranean formation.