Patent ID: 8196666

Claim:
A flexible riser structure, comprising: a flexible riser with an upper end and a lower end, a bend restrictor with a lower end and an upper end, a guiding pipe, and a termination for hanging up on a vessel, a floating installation or a platform, wherein the upper end of the bend restrictor is connected to a lower end of an adapter pipe, the upper end of the flexible riser and an upper end of the adapter pipe are fastened to an end coupling of the termination, the lower end of the adaptor pipe is located higher than the upper end of the bend restrictor, the flexible riser extends through the bend restrictor and the adapter pipe, and a clamp surrounds an outer circumference of the end coupling of the termination for hanging up at a deck level on the vessel, the installation or the platform, wherein the guiding pipe surrounds the adapter pipe, the flexible riser is pullable through the guiding pipe, and the bend restrictor is slidable relative to the guiding pipe, and wherein the flexible riser is clamped by the clamp with bolts, the clamp is engaged with an external groove on the termination, a fastening is engaged with the upper end of the adapter pipe and an inner groove of the clamp, and the clamp is releasable from the flexible riser when the bolts are removed.