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:
Jul. 11, 2017
Filed:
Nov. 13, 2013
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Roland Reichenbach-Klinke, Traunstein, DE;
Bjorn Langlotz, Trostberg, DE;
Ian Robert Macefield, North Yorkshire, GB;
Christian Spindler, Houston, TX (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); E21B 43/25 (2006.01); C09K 8/584 (2006.01); C09K 8/588 (2006.01);
U.S. Cl.
CPC ...
C09K 8/588 (2013.01); C09K 8/584 (2013.01);
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.