Annular barrier with shunt tube
US10677013B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 2017 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to an annular barrier for isolating a production zone, the annular barrier having a first end and a second end, comprising: a tubular metal part for mounting as part of a well tubular metal structure, the tubular metal part having an outer face, an expandable metal sleeve surrounding the tubular metal part and having an outer face facing a wall of a borehole, each end of the expandable metal sleeve being connected with the tubular metal part, an annular space arranged between the expandable metal sleeve and the tubular metal part, the expandable metal sleeve being configured to expand by pressurised fluid entering the annular space, a first tubular metal connection assembly surrounding the tubular metal part connecting one end of the expandable metal sleeve with the tubular metal part and a second tubular metal connection assembly surrounding the tubular metal part connecting the other end of the expandable metal sleeve with the tubular metal part, each tubular metal connection assembly having a wall, and a shunt tube, wherein the tubular metal connection assemblies have at least one opening in the wall through which the shunt tube extends, the shunt t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.