Patent · US Active

Surfactant mixtures for tertiary oil recovery

US8053396B2 · kind B2 · utility

53Cited by

12References

8Claims

0Family size

Assignee

BASF SE

Inventors

Jürgen Huff · Ludwigshafen, DE
Günter Oetter · Bischofswerda, DE
Angelika Kühnle
Susanne Petrovic · Eppelheim, DE
Marcus Guzmann · Bad Windsheim, DE
Ingo Münster · Haßloch, DE
Gregor Brodt · Heppenheim, DE

Key dates

Filing date	Jun 8, 2006
Grant date	Nov 8, 2011
Priority date	—
Expiry date	Dec 30, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S507/936
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.