Process for water wetting oil-wet surfaces

US9689244B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Vandana Kurkal-Siebert · Heidelberg, DE
• Oetter Günter · Bischofswerda, DE
• Hans-Georg Mainx · Leichlingen, DE
• Sandra Mack · Korschenbroich, DE

Key dates

• Filing date: May 22, 2013
• Grant date: Jun 27, 2017
• Expiry date: Aug 24, 2034

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

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.