| 摘要 |
Riser for transferring fluids between an installation (bottom installation) (6) on the seabed (5) and a floating installation (surface installation) (7) at the water surface, comprising a bottom segment (1) adapted to lie with a portion of its length on the seabed (5) from the bottom installation (6), an intermediate segment (2) being provided with buoyancy elements and having a length portion with an upward curvature, and an upper segment (3) the upper end (30) of which is connected to the surface installation (7). The position of the surface installation is adapted to be maintained within a given variation range. The buoyancy elements on the intermediate segment (2) are provided over a length of the same order of magnitude as the water depth at the installation site, and the bottom segment (1), the intermediate segment (2) and the upper segment (3) consist of stiff metal pipe sections. |
