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:
Mar. 15, 2016
Filed:
Feb. 09, 2011
Julian Richard Barnes, Amsterdam, NL;
Hendrik Dirkzwager, Amsterdam, NL;
Quoc an on, Amsterdam, NL;
Johan Paul Smit, Amsterdam, NL;
Jasper Roelf Smit, Amsterdam, NL;
Julian Richard Barnes, Amsterdam, NL;
Hendrik Dirkzwager, Amsterdam, NL;
Quoc An On, Amsterdam, NL;
Johan Paul Smit, Amsterdam, NL;
Jasper Roelf Smit, Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A method is provided for treating a hydrocarbon containing formation. The method comprises providing a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules, and contacting hydrocarbons in the hydrocarbon containing formation with the hydrocarbon recovery composition. The mixture of branched internal olefin sulfonate molecules has an average number of carbon atoms of between 19 and 23, and an average number of branches of at least 0.6 per molecule. A hydrocarbon composition produced from a hydrocarbon containing formation, and a hydrocarbon recovery composition comprising a mixture of branched internal olefin sulfonate molecules are also provided.