System for tensioning risers by means of articulated grid

摘要

Basically the system consists of a supporting structure (1) lying in an opening in floating vessel (9) to which a group of risers (3) is connected running from sea bottom to sea surface, linking undersea oil wells to their respective production trees (5) which lie on floating vessel (9), said supporting structure (1) being provided with ball joints that enable a group of risers (3) to articulate in relation to supporting structure (1), and slide blocks to enable said supporting structure to be connected/articulated to floating vessel (9).