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. 24, 2015
Filed:
May. 11, 2012
Mikel Morvan, Pessac, FR;
Max Chabert, Bordeaux, FR;
Manilal S. Dahanayake, Princeton Junction, NJ (US);
Mikel Morvan, Pessac, FR;
Max Chabert, Bordeaux, FR;
Manilal S. Dahanayake, Princeton Junction, NJ (US);
Rhodia Operations, Aubervilliers, FR;
Abstract
A method for enhancing foam stability in foaming compositions for use in oilfield treatment application, including but not limited to use in mobility control for gas flooding. The method comprises the step of adding to a foaming composition a foam stabilizer of formula (I): wherein Ris an alkylamido group or a branched or linear alkyl group; Rand Rare individually hydrogen or a methyl group; R, Rand Rare individually hydrogen or a hydroxy group, with the proviso that at least one of R, Ror Ris a hydroxyl group; wherein the alkyl group has greater than about 10 carbon atoms. Also disclosed are methods to enhance foam stability in an aqueous foaming composition.