| 摘要 |
The present invention relates to a downhole expandable metal tubular to be expanded in a well downhole from a first outer diameter to a second outer diameter to abut against an inner face of a casing or borehole, the downhole expandable metal tubular having an outer tubular face and a longitudinal extension and comprising a first circumferential edge and a second circumferential edge provided on the outer tubular face and having a distance along the longitudinal extension, and a circumferential sealing element being arranged between the circumferential edges, wherein the downhole expandable metal tubular further comprises: a circumferential resilient element having an outer face part facing away from the outer tubular face and having an extension along the longitudinal extension, the extension of the circumferential resilient element being smaller than the distance, a space arranged adjacent to the circumferential resilient element in the longitudinal extension, and a first portion of the circumferential sealing element at least partly overlapping the outer face part of the circumferential resilient element, the circumferential resilient element arranged between the portion of the circumferential sealing element and the outer tubular face. Furthermore, the present invention relates to an annular barrier, to a downhole completion system and to a sealing method. |
