Page 23: of Marine Technology Magazine (November 2015)

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Subsea Considerations

The subsea aspect of the project was planned in two phas- es. Phase one saw the Olympic Ares carry out installation activities for the single anchor loading system (SAL), me- trology, lay through spool removal, ? exible and umbilical installation and wet storing of fabricated spools. Phase two consisted of the diving support operations to complete in- stallation, tie in, stability/protection and recommissioning of the ? exible, umbilicals, spools and storage tank.

During the campaign, a 72-in. structure pile was installed which required a large 90-ton ‘Fast Frame’ to be deployed to the seabed. The loading hose itself presented a range of engineering considerations to the project team due to the in? exibility of the product and the fact it could not be pre- installed on a deployment reel onshore prior to installation on this occasion.

After completing the acoustic metrology, the Bibby Po- laris was deployed to connect the pipeline to the SAL spool and the SAL to the of? oading hose.

During the offshore operations, the project team con? g-

Proven, reliable connectors ured an optimized deck layout on the Olympic Ares, thus and cable assemblies creating the required working space. This was necessary due to a multi reel drive system taking up a signi? cant amount are here.

of deck space and also the additional equipment required to install ? exible and umbilical products before completing metrology between the newly installed platform and subsea oil storage tank. In subsequent campaigns, two DSVs and one ROVSV were mobilized to carry out spool installations, ? exible and umbilical tie-ins, mattressing and general stor- age tank works.

Umbilical Loadout

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Photo: Bibby www.? scherconnectors.com

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