Momentum on Liza Destiny FPSO

During the fourth quarter of 2018, SBM and Keppel safely completed the second dry dock for the Liza Destiny FPSO. The riser hang-off assemblies, better known as receptacles, and umbilical tubes and cover were installed on the side of the hull. The Liza Destiny successfully departed the dry dock as planned on November 7.

SBM continued their solid performance on procurement in the last quarter. A key milestone was completion of the factory acceptance test (FAT) of the riser and umbilical pull-in system (RPS). During FAT, the manufacturer tests the system and proves that all the equipment parts function as designed. The RPS has now started its journey from the Righini shop in Italy, where it was manufactured, to Singapore, where it will be integrated on the gantry system of the FPSO in the first quarter of 2019.

The riser pull-in system orchestrates the final pull-in of the risers to the FPSO and gently lands them into the riser receptacles that were installed during the second dry dock. This critical machinery also gently pulls the umbilical through the umbilical tube. The umbilical can then be connected to the topsides electrical and hydraulic control systems in order to control and communicate with the equipment on the sea floor.

At Dyna-Mac in Singapore, fabrication work on the 12 topsides modules is nearing completion as scheduled for January 2019. The first module load out campaign that included four modules (local equipment room, two power generation modules and the offloading skid) lifted onto the FPSO in November was successfully completed. See how they are being integrated with each other as well as the vessel’s utility, controls and marine cargo systems.

In December, the second module load out campaign was completed, including three modules lifted into place: the seawater treatment, water injection and oil processing A modules. In January and February 2019, the final five topsides modules will be loaded out from Dyna-Mac and lifted onto the vessel at Keppel: the oil processing B module, main gas compression, gas injection compression, flash gas/gas dehydration and the flare drum/chemical storage modules. At that point, all work fronts will be solely focused at the Keppel shipyard for module integration, including pulling the power and instrumentation cables, progressing mechanical completion and commencement of commissioning.

In December, the site team in Singapore worked hard to energize and make available essential power and compressed air supply to the FPSO topsides modules on the vessel. This work supports the transition to the next stage of the FPSO project: commencement of pre-commissioning and commissioning activities, leading up to sail-away in July 2019. Temporary power is being supplied on board to the various control rooms to test connections and power transmission. The integrated control and safety system (ICSS) was temporarily powered in the accommodation equipment room (AER) and computer equipment room (CER) to allow for network and hardware testing.

The team is looking forward to completing the next major milestones during the first quarter of 2019. We are scheduled to complete the commissioning of the gas turbines in March. We will also focus on the delivery of the suction piles and mooring line systems to Trinidad. This work will support the start of the mooring pre-lay campaign offshore Guyana in May 2019.