Patent · US Active

Delayed gelling agents

US9850425B2 · kind B2 · utility

1Cited by

8References

4Claims

0Family size

Assignees

ConocoPhillips Company · US
University of Kansas · US

Inventors

Huili Guan · Lawrence, US
Cory Berkland · Lawrence, US
Ahmad Moradi-Araghi · Bartlesville, US
Jenn-Tai Liang · College Station, US
David R. Zornes · Bartlesville, US
Riley B. Needham · Bartlesville, US
Min Cheng · Bartlesville, US
James H. Hedges · Bartlesville, US
James P. Johnson · Bartlesville, US
Faye L. Scully · Bartlesville, US

Key dates

Filing date	Jun 9, 2011
Grant date	Dec 26, 2017
Priority date	—
Expiry date	Oct 26, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/138
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention is directed to delayed gelation agents comprising a degradable polymeric cage containing therein one or more gelation agents. The cage degrades in situ, e.g, in an oil reservoir, thus releasing the gelation agent(s), which can then crosslink second polymers in situ to form a gel.

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