Stones Jack Replacement

Conbit was contracted to assist with the replacement of one of the nine turret cylinders (jacks) on Shell’s Stones Turritella FPSO. The hydraulic jack weighed around eight tons and was five meters long. The jack was located three levels below the main deck, inside the FPSO turret buoy, in a congested area accessible only via a lifting hatch.

For this project, Conbit worked together with hydraulic jack service company Hydradyne who were responsible for decommissioning the jack. Conbit provided support with all the required lifting jobs, providing all lifting and handling equipment and transferring each part from turret to the reach of the deck crane.  

Solution

To remove and transport the jack, Conbit used multiple rigging lines and chain hoists to cross-haul the loads inside the turret buoy.  As well as various beam trolleys and rigging lines at the main deck to transfer the loads to the reach of the deck crane.

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