Patent ID: 9422795
Filing Date: 2016-08-23
CPC Classification: E21B

Claim Text:
1. A method of radially expanding a tubular element below a previously installed tubular element arranged in a wellbore, including the steps of: connecting a downhole section to an uphole section of the tubular element, the downhole section having a smaller diameter than the uphole section; bending a downhole end of the downhole section radially outward and in axially reverse direction to form an expanded tubular section of the downhole section extending around an unexpanded part of the downhole section; arranging said expanded tubular section at least partially within a downhole end of the previously installed tubular element; anchoring said expanded tubular section to the previously installed tubular element; increasing the length of an expanded tubular section of the tubular element by pushing an unexpanded tubular section downhole relative to said expanded tubular section to expand the unexpanded tubular section by bending the wall of the unexpanded tubular section radially outward and in axially reverse direction; and inserting a layer of filler material in an annular space between the expanded tubular section and the unexpanded part of the downhole section, wherein an adhesive is located between the layer of filler material and the expanded tubular section.