Abstract: The present invention relates to an annular barrier system (100) for expanding an annular barrier (1) in an annulus (2) between a well tubular structure (3) and an inside wall (4) of a borehole downhole. The annular barrier system comprises an annular barrier (1) having a tubular part (5) for mounting as part of the well tubular structure (3), the annular barrier further comprising an expandable sleeve (6) surrounding the tubular part (5), at least one end (7) of the expandable sleeve being fastened in a fastening means (8) of a connection part (9) in the tubular part. The annular barrier system also comprises a tool (20) for expanding the expandable sleeve by letting a pressurised fluid through a passage (11, 21) in the tubular part into a space (12) between the expandable sleeve and the tubular part.

Abstract: A downhole expandable liner hanger apparatus for extending the length of an existing tubular such as a casing or liner string is described. The apparatus comprises a tubular portion and a securing and/or sealing means for securing the tubular portion to the existing tubular such as a casing string to thereby extend the length of the existing tubular and preferably simultaneously provide a sealed coupling between the tubular portion and the existing tubular. A first part or a length of the tubular portion preferably comprises a first sidewall thickness and a second part or length of the tubular portion is located adjacent the first part, where the second part comprises a second sidewall thickness, said first sidewall thickness being less than the second sidewall thickness.