F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 13/02 (2006.01) B23K 9/02 (2006.01) B23K 37/053 (2006.01) F16L 1/19 (2006.01) F16L 39/00 (2006.01)
Patent
CA 2439133
A method of welding together the ends of outer pipe sections (16A, 16B) of pipe-in-pipe pipeline to be laid on a seabed employs an annular member (5) interposed between adjacent lengths of pipe. The annular member comprises a first axial part (11) which fits within the end of the first outer pipe section, and a flange part (12) which is interposed between the adjacent ends of the two lengths of outer pipe sections (16A, 16B) to be joined. The flange part (12) of the annular member (5) projectsradially outwardly beyond the inside of the outer pipe sections (16A, 16B) and terminates radially inwardly of the outside of the outer pipe sections (16A, 16B), and provides some of the welding material for the joint.
Procédé permettant de souder ensemble les extrémités de segments (16A, 16B) de conduite externe d'un oléoduc de type à tuyaux concentriques (pipe in pipe) destiné à être posé sur le sol marin, selon lequel un élément annulaire (5) est interposé entre des longueurs adjacentes de conduite. L'élément annulaire comporte une première partie axiale (11) qui s'emboîte dans l'extrémité du premier segment de conduite externe et une partie bride (12) qui est interposée entre les extrémités adjacentes de deux longueurs de segments (16A, 16B) de conduite externe à raccorder. La partie bride (12) de l'élément annulaire (5) qui fait projection radialement vers l'extérieur au-delà de la face interne des segments (16A, 16B) de conduite externe et se termine radialement intérieurement par rapport à la face externe des segments (16A, 16B) de conduite externe fournit une partie de la matière de soudage du raccord.
Bonelli Renato
Tosi Luciano
Bonelli Renato
Gowling Lafleur Henderson Llp
Saipem S.p.a.
Tosi Luciano
LandOfFree
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