UNDERWATER PIPE INSTALLATION SYSTEM FOR FITTING OFF-COAST PIPE AND / OR INSTALLATION OF AN UNDERWATER UPHOLDER, AND METHOD OF INSTALLATION OF AN UNDERWATER UPHOLDER

摘要

underwater pipe installation system for laying an offshore pipe and / or installing an underwater riser, and methods of installing an offshore pipe and / or underwater riser underwater. an underwater pipe installation system for laying an offshore pipe and / or installing an underwater riser, the system permitting at least. performing the reel seating method, wherein the system comprises: one or more storage reels (8) for pipe storage (11), a pipe launch tower (20), a pipe guide (27) in a elevated position for guiding said tubing along said tower, one or more tractors (40, 50), each tractor comprising a tractor frame and multiple tracks supported by said tractor frame (41, 51), said tracks being adapted To engage the tubing and support at least part of the weight of the cast tubing, the tractor frame (41, 51) being supported by said tower via an associated support assembly. the support assembly is adapted to permit movement of the tractor frame (41, 51) between an active position in which the tubing launching path extends through the tractor frame (41, 51) between the tracks, and a stowed position and non-operational.