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:
Dec. 27, 2022
Filed:
Oct. 17, 2019
Championx Usa Inc., Sugar Land, TX (US);
Baharak Barzegar Alamdari, Sugar Land, TX (US);
Mehdi Salehi, Aurora, CO (US);
Mahdi Kazempour, Sugar Land, TX (US);
ChampionX USA Inc., Sugar Land, TX (US);
Abstract
Mobility control polymers can be used to increase recovery of crude oil from a subterranean hydrocarbon-containing formation. A flooding fluid comprising the polymer are injected into a well that is in contact with the subterranean hydrocarbon-containing formation. The polymers are derived from reacting a crosslinking agent with a polymer and the crosslinking agent comprises a polyvalent metal ion having a weight/weight ratio of polymer to crosslinking agent of at least 60:1. These flooding fluids have improved injectivity into the well; the improved injectivity can be measured in terms of the flooding fluid's filter ratio, flow rate, and viscosity.