Patent · US Active

Packers having controlled swelling and methods of manufacturing thereof

US10738560B2 · kind B2 · utility

2Cited by

8References

16Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Ping Duan · Cypress, US
Anil K. Sadana · Houston, US
Wayne Furlan · Austin, US

Key dates

Filing date	Apr 25, 2017
Grant date	Aug 11, 2020
Priority date	—
Expiry date	Nov 17, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B23/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A sealing system for a flow channel includes a mandrel, a swellable element disposed about the mandrel, and a degradable polymeric element disposed on a surface of the swellable element and configured to delay swelling of the swellable element. The degradable polymeric element comprises one or more of the following: polyurethane; cured cyanate ester; an epoxy; polyimide; unsaturated polyester; or nylon.

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