公开(公告)号：US10196861B2

公开(公告)日：2019-02-05

申请号：US15305963

申请日：2015-04-20

Applicant: SAIPEM S.A.

Inventor： François Régis Pionetti ,  Nicolas Chazot ,  François Lirola ,  Cédric Bruguier

IPC: E21B17/01 ,  E21B19/22 ,  E21B19/09

Abstract: A method of installing and implementing a rigid tube (10) referred to as a “main” tube, wherein the following steps are performed: a) lowering an end of the main tube from a floating support or vessel (13) on the surface (14) to below sea level (14) to be connected to undersea equipment (16) that is immersed (17); and b) maintaining the main tube as immersed in this way for a given period of time. The said main tube (10) is caused to pass through a cylindrical orifice (4) of circular section in a stress limiter device, the orifice having a slippery internal coating (3) secured to a support structure (9) secured to the floating support or vessel, the service tube thus being suitable for sliding in contact against the slippery coating during steps a) and b).

公开(公告)号：US10562235B2

公开(公告)日：2020-02-18

申请号：US15762499

申请日：2016-09-21

Applicant: SAIPEM S.A.

Inventor： François-Régis Pionetti ,  François Lirola ,  Taoufik Majdoub

IPC: B29C65/16 ,  F16L47/02 ,  B29C65/82 ,  B29C65/00 ,  B23K26/10 ,  B29K507/04 ,  B29D23/00 ,  B29L23/00

Abstract: The present invention relates to a method and to a device for assembling together two tubes (1, 2) comprising a tubular junction sleeve and an internal pipe liner tube made of thermoplastic materials by laser welding two contact surfaces of revolution (1-1, 2-1) pressed one against the other at the ends of the tubular sleeve of said liner tube overlapping coaxially.