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:
Dec. 04, 2018
Filed:
May. 21, 2015
Shell Oil Company, Houston, TX (US);
Julian Richard Barnes, Amsterdam, NL;
Hendrik Dirkswager, Harde, NL;
Carmen Geraldine Reznik, Friendswood, TX (US);
Sonja Geib, Amsterdam, NL;
Sjoerd Reindert Van Kuijk, Amsterdam, NL;
James Laurel Buechele, Houston, TX (US);
SHELL OIL COMPANY, Houston, TX (US);
Abstract
The present invention provides a method for predicting the optimal salinity of individual members of a class of internal olefin sulfonate compositions in a mixture containing the individual member, a brine and hydrocarbons, wherein the internal olefin sulfonate compositions comprise a mixture containing hydroxy alkane sulfonates and alkene sulfonates. The invention further provides use of the weight ratio of hydroxy alkane sulfonates to alkene sulfonates in an internal olefin sulfonate composition to predict the optimal salinity of the surfactant composition in a mixture of the surfactant composition, a brine and an oil.