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:
Sep. 13, 2016
Filed:
Apr. 19, 2012
Julian Richard Barnes, Amsterdam, NL;
Robert Hardy Ellison, Katy, TX (US);
Marinus Johannes Faber, Rijswijk, NL;
Khrystyna Groen, Amsterdam, NL;
Robert Moene, Amsterdam, NL;
Quoc an on, Amsterdam, NL;
Julian Richard Barnes, Amsterdam, NL;
Robert Hardy Ellison, Katy, TX (US);
Marinus Johannes Faber, Rijswijk, NL;
Khrystyna Groen, Amsterdam, NL;
Robert Moene, Amsterdam, NL;
Quoc An On, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention relates to a method of treating a hydrocarbon containing formation, comprising: (a) providing a composition to at least a portion of the hydrocarbon containing formation, wherein the composition comprises an anionic surfactant based on an alkoxylated primary alcohol having a branched aliphatic group, which group has an average carbon number of from 9 to 15 and an average number of branches of from 0.5 to 2.5, and having an average of at least 0.5 mole of alkylene oxide groups per mole of primary alcohol; and (b) allowing the composition to interact with hydrocarbons in the hydrocarbon containing formation. Further, the invention relates to the hydrocarbon recovery composition that is used in said method.