Chamberlain Hrdicka
Demulsifier compositions for treatment of subterranean formations and produced oil
Various embodiments disclosed relate to demulsifier compositions for treatment of subterranean formations or produced petroleum comprising an emulsion. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a demulsifier composition. The demulsifier composition includes an alkanolamide surfactant that is a (C1-C50)hydrocarbyl amide having groups R1 and R2 substituted on the amide nitrogen, wherein R1 and R2 are each independently selected from the group consisting of —H, —(C1-C50)hydrocarbyl, and —(C1-C50)hydrocarbylene-OH, wherein at least one of R1 and R2 is —(C1-C50)hydrocarbylene-OH. The demulsifier composition includes an alkoxylated alcohol surfactant that is a (C1-C50)hydrocarbyl-OH having a —((C2-C3)alkylene-O)n-H group on the —OH group, wherein n is about 1 to about 100. The demulsifier composition also includes an amine-oxide surfactant. At each occurrence the (C1-C50)hydrocarbyl and (C1-C50)hydrocarbylene are substituted or unsubstituted and are independently selected.
Halliburton Energy Services, Inc.
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C09K C09K C09K
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Kristina Henkel Jeremy A. Antonio Chandra Sekhar
Holan Holtsclaw Recio, III Palla-Venkata