| 摘要 |
The present invention relates to a downhole expandable 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 tubular having an axial extension, a first end section and a second end section, and an intermediate section between the first end section and the second end section, wherein the downhole expandable tubular is made from one metal tubular blank of one metal material, the metal material of the end sections having a higher yield strength than the metal material of the intermediate section. The present invention furthermore relates to an annular barrier to be expanded in an annulus, to a downhole completion system and to a manufacturing method for the manufacture of the downhole expandable tubular according to the present invention. |
