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:
Jun. 27, 2017
Filed:
May. 22, 2013
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Vandana Kurkal-Siebert, Heidelberg, DE;
Oetter Günter, Frankenthal, DE;
Hans Georg Mainx, Leichlingen, DE;
Sandra Mack, Korschenbroich, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/80 (2006.01); E21B 43/26 (2006.01); E21B 43/16 (2006.01); C09K 8/528 (2006.01); C09K 8/584 (2006.01); C09K 8/60 (2006.01); C09K 8/68 (2006.01); C09K 8/74 (2006.01);
U.S. Cl.
CPC ...
E21B 43/26 (2013.01); C09K 8/528 (2013.01); C09K 8/584 (2013.01); C09K 8/602 (2013.01); C09K 8/68 (2013.01); C09K 8/74 (2013.01); E21B 43/16 (2013.01);
Abstract
Process for water-wetting oil-wet surfaces by applying an aqueous formulation comprising at least one wettability modifier which is a water-soluble ester of an alkoxylated saccharide to the oil-wet surface. The oil-wet surfaces may be any hydrophobic surfaces such as the rocks of subterranean oil-bearing formations.