Patent ID: 7931311
Filing Date: 2011-04-26
Classification: E21B,F16L

Abstract:
1. An expandable tubular joint, comprising: a first tubular element comprising a second tubular element comprising wherein said second tubular element comprises, at a selected location of said third inner surface, an inner annular groove wherein said first and second tubular elements are shaped in such a way that said first lip is accommodated in said annular recess, and (i) said second abutment surface rests against said third abutment surface or (ii) said first abutment surface rests against said fourth abutment surface so as to allow, during a diametral expansion involving plastic deformation subsequently carried out on the expandable tubular joint, the formation, in the region of said first outer surface, of an annular shoulder having at least a part of the shape of the groove and being in sealing interference contact therewith.