Patent ID: 8316932

Claim:
A wellbore system comprising a) a wellbore extending into an earth formation, the wellbore containing a body of fluid; b) an expandable tubular element arranged in the wellbore, whereby a lower end portion of the wall of the tubular element is bent radially outward and in an axially reverse direction so as to define an expanded tubular section extending around a remaining tubular section of the tubular element, the expanded tubular section being axially extendable by downward movement of the remaining tubular section relative to the expanded tubular section, wherein the body of fluid is located in the remaining tubular section; c) a fluid conduit extending from the body of fluid to a location above the remaining tubular section such that drilling fluid containing drill cuttings may be discharged from the wellbore via said fluid conduit, the fluid conduit being movable in upward direction relative to the remaining tubular section.