Patent ID: 8083439

Claim:
A method for installing a riser in a tube that is part of the riser support system for an offshore platform floating in a body of water, which method comprises: (a) running the riser into said tube until the bottom portion of said riser approaches the floor of said body of water, wherein the top portion of said riser contains an attachment means engaged around its circumference; (b) lowering the top portion of said riser and said attachment means into said tube until said attachment means is fixedly seated in said tube at a location below the surface of said body of water; (c) applying a temporary tensioning force to the portion of said riser that extends above the top of said tube; (d) disengaging said attachment means from said riser; (e) adjusting said temporary tensioning force to a desired value; (f) re-engaging said attachment means around the circumference of said riser while said desired tensioning force is being applied; and (g) removing the temporary tensioning force from the portion of said riser that extends above said tube; wherein said tube is non-movably fixed to said riser support system.