Patent · US Active

Process for tertiary mineral oil production

US9701890B2 · kind B2 · utility

5Cited by

6References

17Claims

0Family size

Assignee

BASF SE

Inventors

Roland Reichenbach-Klinke · Traunstein, DE
Björn Langlotz · Trostberg, DE
Ian Robert Macefield · Ripon, GB
Christian Spindler · Günzburg, DE

Key dates

Filing date	Nov 13, 2013
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Nov 17, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K8/584
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Process for tertiary mineral oil production in which an aqueous injection fluid comprising at least a water soluble polyacrylamide-(co)polymer dissolved in the aqueous fluid is injected into a mineral oil deposit and the aqueous injection fluid is prepared by mixing a liquid dispersion polymer composition comprising particles of polyacrylamide-(co)polymers dispersed in an organic, hydrophobic liquid with an aqueous fluid. Preferably, the process is carried out on an off-shore production site.

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