Importance

Loading Importance Indicators...

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 tube extending along and outside the tubular metal part from the first end via the annular space to the second end. Furthermore, the present invention relates to a downhole completion system for completing a well and to an expansion method for expanding an annular barrier.

First Claim