Abstract

Compositions of swellable non-toxic hydro gels and their use in conformance control are described herein. More specifically, the present invention generally relates to the hydro gels compositions that can be used to treat the oil reservoirs having high temperature and high salinity conditions. The compositions generally comprise a plurality of swellable particles having one or more crosslinkers interspersed within a polymer matrix. The compositions can also be used in biomedical, agricultural, fracking and similar applications wherein thermally-stable, nontoxic hydrogels are required.

Department(s)

Chemistry

Second Department

Materials Science and Engineering

Third Department

Geosciences and Geological and Petroleum Engineering

Fourth Department

Chemical and Biochemical Engineering

Comments

Docket Number: 21MST002-UTL

Filing Date: 05/04/2023

Issue Date: 11/18/2025, FY26

References Cited

U.S. Patent Documents:

8,669,214 B2 3/2014 Moradi-Araghi et al.

10,889,745 B1 Jin et al.

11,162,016 B2 11/2021 Pu et al.

11,453,814 B2* 9/2022 Bai...............C09K 8/508

11,549,048 B2* 1/2023 Pu...............C09K 8/5045

2013/0005616 A1 1/2013 Gaillard et al.

2014/0144628 A1* 5/2014 Moradi-Araghi...............E21B 33/138 166/275

2019/0011955 A1 1/2019 Stewart et al.

2019/0119559 A1 4/2019 O'Toole et al.

2020/0325384 A1* 10/2020 Pu...............C09K 8/512

Foreign Patent Documents:

CN 104449613 3/2015

CN 108676119 10/2018

CN 110903816 7/2020

JP 2008220786 9/2008

WO 2010105070 A1 9/2010

Prior Publication Data:

US 2023/0407163 A1 December 21, 2023

Patent Application Number

18/251,852

Patent Number

US 12,473,482 B2

Document Type

Patent

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2026 The Curators of the University of Missouri, All rights reserved

Additional Rights Information

Assignee: The Curators of the University of Missouri, Columbia, Missouri (US)

Publication Date

18 November, 2025

Download

Share

 
COinS