Low molecular weight polyacrylates for EOR

US11447686B2 · kind B2 · utility

Assignees

• University of Kansas · US
• ConocoPhillips Company · US

Inventors

• Stephen J Johnson · Lawrence, US
• Cory Berkland · Lawrence, US
• Ahmad Moradi-Araghi · Bartlesville, US
• Jenn-Tai Liang · College Station, US
• Terry M. CHRISTIAN · Bartlesville, US
• Riley B. Needham · Bartlesville, US
• Min Cheng · Bartlesville, US
• Ying-Ying Lin · Lawrence, US
• Andrew B. Woodside · Pickerington, US

Key dates

• Filing date: Apr 19, 2021
• Grant date: Sep 20, 2022
• Expiry date: Apr 19, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2208/32
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The disclosure is directed to low molecular weight polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.