Swellable packer with internal backup ring
US9016391B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Apr 16, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A swellable packer includes a base pipe; a swellable sealing element disposed around the outer diameter of the base pipe; and at least one internal backup ring disposed within the swellable sealing element. It may be manufactured by disposing the internal backup ring on the base pipe; applying an elastomeric material over a section of the base pipe and the internal backup ring; and applying a bonding agent over the section of the base pipe and the at least one internal backup ring. It may be used to isolate a section of a well by disposing a swellable packer in the well, and exposing the swellable packer to a fluid, wherein the fluid exposure causes the elastomeric material to radially expand into contact with a well wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.