| 摘要 |
<p>An offshore production tubing system wherein the production tubing extends between at least one Christmas tree (5) on the seabed (11) and a vessel (8) floating on the surface (12). The vessel (8) is capable of limited movement in all directions in the horizontal plane within a defined area, the production tubing is divided into two sections: a section (1) lying on the seabed and emerging from a Christmas tree (5) and a section (2) which is 'suspended' in the water and terminates in the vessel (8). The bottom section (1) and the suspended section (2) are connected at one point (4) and at some distance from the seabed. Either the bottom section (1) or the suspended section (2) close to the connection point (4) describes an elbow bend (3) and the suspended section (2) is compliant anchored to the seabed (11) in the vicinity of the connection point (4), the pipes thereby being held under tensile load.</p> |
