The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Dec. 07, 2015
Halliburton Energy Services, Inc., Houston, TX (US);
Chandra Sekhar Palla-Venkata, Conroe, TX (US);
Jeremy A. Holtsclaw, Kingwood, TX (US);
Antonio Recio, III, Humble, TX (US);
Kristina Henkel Holan, Cypress, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
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 (C-C)hydrocarbyl amide having groups R1 and R2 substituted on the amide nitrogen, wherein Rand Rare each independently selected from the group consisting of —H, —(C-C)hydrocarbyl, and —(C-C)hydrocarbylene-OH, wherein at least one of Rand Ris —(C-C)hydrocarbylene-OH. The demulsifier composition includes an alkoxylated alcohol surfactant that is a (C-C)hydrocarbyl-OH having a —((C-C)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 (C-C)hydrocarbyl and (C-C)hydrocarbylene are substituted or unsubstituted and are independently selected.