Process for producing mineral oil from underground formations

US8763698B2 · kind B2 · utility

Assignees

• BASF SE
• BASF Canada · CA

Inventors

• Roland Reichenbach-Klinke · Traunstein, DE
• Andrea Aβmann · Unterreit, DE
• Björn Langlotz · Trostberg, DE
• Christian Spindler · Günzburg, DE
• Russell Giesbrecht · Calgary, CA

Key dates

• Filing date: Apr 5, 2012
• Grant date: Jul 1, 2014
• Expiry date: Jul 7, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/5756
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for producing mineral oil from underground formations, wherein, in one process step, permeable regions of the underground formation are blocked by injecting aqueous formulations of hydrophobically associating copolymers into the formation.