In situ turret bearing remediation and assembly

In an offshore system including a floating vessel having a turret supporting structure allowed to weather vane about a turret, a mooring structure extending from the turret to the seafloor, and a bearing structure rotatably supporting the turret on the turret supporting structure of the vessel and that includes a support row assembly providing vertical load transfer of the turret to the vessel, the support row assembly positioned between an inner ring and an outer lower ring, a plurality of inner ring fasteners securing the inner ring to the turret and a plurality of outer ring fasteners securing the outer lower ring to the turret supporting structure of the vessel, a deployable, remedial arrangement for in-situ remediation of a damaged support row assembly comprising:

• a plurality of couplers with a coupler secured to a lower end of each inner ring fastener;
• a continuous bearing ring below the plurality of couplers and around the circumference of the turret;
• a support bearing arrangement between the plurality of couplers and the continuous bearing ring;
• a plurality of reaction plates mounted to the turret supporting structure of the vessel;
• a plurality of jack screws mounted in the plurality of reaction plates, each reaction plate having at least one jack screw mounted therein, and the plurality of jack screws are positioned directly below the continuous bearing ring,
• wherein the plurality of jack screws are arranged and designed to elevate the continuous bearing ring and form a flat surface for support of the support bearing arrangement.

A deployable, remedial support row assembly arrangement for in-situ remediation of a damaged support row assembly of a bearing structure rotatably supporting a turret on a turret supporting structure of a floating vessel, the damaged support row assembly providing vertical load transfer of the turret to the vessel and positioned between an inner ring secured to the turret with a plurality of inner ring fasteners and an outer lower ring secured to the turret supporting structure of the vessel with a plurality of outer ring fasteners, the remedial support row assembly arrangement comprising:

• a plurality of couplers, a coupler arranged and designed to be secured to a lower end of each inner ring fastener;
• a continuous bearing ring arranged and designed to be positioned below the plurality of couplers and around the circumference of the turret;
• a support bearing arrangement arranged and designed to be positioned between the plurality of couplers and the continuous bearing ring;
• a plurality of reaction plates arranged and designed to be mounted to the turret supporting structure of the vessel;
• a plurality of jack screws arranged and designed to be mounted in the plurality of reaction plates, each reaction plate arranged and designed to have at least one jack screw mounted therein, and the plurality of jack screws are arranged and designed to be positioned directly below the continuous bearing ring,
• wherein the plurality of jack screws are arranged and designed to elevate the continuous bearing ring and form a flat surface for support of the support bearing arrangement.