Patent ID: 7954516

Claim:
A cladding method for sealing a leak in a casing, a pipeline, a borehole, or a well downhole using a liner having a tube with a first diameter and a plurality of sealing means in a plurality of circumferential grooves, comprising the steps of: fastening the liner in a fastening means of an expansion tool, inserting the liner having a first part and a second part into the casing outside the leak, positioning an expansion means of the expansion tool at the first part of the liner, expanding the first part of the liner until the sealing means in the grooves of the first part of the liner are pressed against the casing and fasten the first part to the casing, releasing the liner so that the liner is free of the tool and the liner is held in place by the sealing means in the first part of the liner, and expanding all the way through the liner by expanding also the second part of the liner to abut the casing for sealing the leak.