Patent · US Active

Delayed gelling agents

US10323174B2 · kind B2 · utility

8Cited by
8References
12Claims
0Family size

Assignees

Inventors

Key dates

Filing dateNov 6, 2017
Grant dateJun 18, 2019
Priority date
Expiry dateNov 6, 2037

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.