Patent ID: 6408949
Filing Date: 2002-06-25
Classification: E21B

Abstract:
A device for mounting and aligning a Christmas tree (40) which can be lowered from a platform on a wellhead (28) located on a seabed, said device comprising:a side element (12) mountable on a drilling template; a guide pipe (10) arranged to receive the wellhead, the side element (12) having a guiding device comprising a conical funnel (24) to receive the guide pipe; and a substantially cylindrical adaptor (2), wherein the adaptor comprises a lower section (6) with alignment and orientation bodies (14) which are arranged to coact with bodies (18) of the side element (12), a truncated cone-shaped intermediate section (8) which is adapted to the shape of the funnel (24) of the side element, and an upper section (4), which has an outer diameter which is larger than the outer diameter of the lower section (6) and is adapted for insertion in a funnel (42) of the Christmas tree (40), and which has alignment and orientation bodies (32) adapted for coacting with corresponding orientation bodies (30) of the Christmas tree (40).