Lankhorst bags mooring lines contract for 2nd Guyana FPSO

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Leading deepwater mooring rope manufacturer, Lankhorst Offshore, said it has been awarded a contract by SBM Offshore to supply the mooring lines for the Liza Unity Floating Production Storage and Offloading (FPSO) for ExxonMobil’s Liza oil field offshore Guyana.

This follows the successful deployment of Lankhorst mooring lines for the Liza Destiny FPSO mooring system also in the Liza field where oil production began last December.

The Liza Unity FPSO will be spread moored at a water depth of 1600m with 20 Cabral 512 deepwater mooring lines with a minimum breaking strength of 12,300 kN. Each mooring line measures 2,320m in length, totalling 46,400m. When deployed the mooring line will comprise a chain top segment, polyester rope middle segment and chain bottom segment, connected to a suction pile anchor.

Lankhorst Offshore said the ABS class approved Cabral 512 rope construction features a specially designed filter, preventing ingress of sand while the mooring lines are pre-laid on the seabed ahead of the Liza Unity FPSO arriving on station.

Sustainable and Greener Deepwater Mooring

The Liza Unity is based on SBM Offshore’s Fast4Ward® FPSO design. For these two Liza FPSOs, Lankhorst Offshore has developed a ‘standardised’ deepwater mooring model to reduce lead times.

In addition to reducing the number of shipping reels by loading longer mooring line lengths or multiple segments on each reel, Lankhorst has also introduced reusable shipping rope reels/cradles which can be returned to its manufacturing facilities. These enable a more sustainable supply of deepwater mooring lines. The Liza Unity mooring lines will reuse the 16 shipping reels returned from the Liza Destiny mooring.

“We fully support SBM Offshore’s Fast4Ward FPSO design approach. By introducing a standardised manufacturing model combined with reusable shipping reels, we too are playing our part in reducing the capital costs of deepwater mooring and increasing sustainability,” says Neil Schulz, sales director, Lankhorst Offshore.

The Cabral 512 ropes will be manufactured at Lankhorst Offshore’s factory, dedicated to the production of offshore mooring systems, in Viana do Castelo, Portugal.

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