Projects

REEF DESPINA AND REEF LARISSA – UPGRADE AND COMMISSIONING project Q1 2012 to q2 2012REEF DESPINA AND REEF LARISSA – UPGRADE AND COMMISSIONING

Q1 2012 to q2 2012

While working for Optimum Marine Technology, we supported Reef Subsea AS with the purchase, delivery (China), upgrade and commissioning of two new vessels. Our work included:

Vessel assessment and selection

FEED Study and GAP analysis identifying vessel upgrades to match customer requirements

Design Engineering for vessel upgrades, including

  • Accommodation Upgrade from 60 to 75 persons (PoB)
  • Power Supply upgrades including two deck utility stations of 1.5 MVA
  • Installation of two Work Class ROVs and integrated control rooms
  • Survey and IT upgrade
  • Installation of additional HiPAP system
  • Classification society and Norwegian flag authority approvals

Procurement of equipment

Production of ITT for Shipyard Scope of work

Shipyard evaluation and assessment

Project Management and site supervision

Final commissioning and testing of the two vessels, including sea trials and vessel assurance to IMCA standards

 REEF DESPINA AND REEF LARISSA – UPGRADE AND COMMISSIONING project Q1 2012 to q2 2012

During this project, we also took on additional challenges that became apparent on delivery to the UK, including:

  •  Removal of existing main engine “submerged” exhaust systems
  •  Replace of main engine exhausts with a conventional system (5 engines and a total of 180 metres of insulated exhaust lines at 450mm ID)
  •  Rework of moonpool hatch cover, replacement of wheelhouse windows, refurbishment and re-commissioning of numerous marine systems
  •  Management of warranty items with the shipbuilding yard in China.

This challenging project was completed in 14 weeks from vessel arrival in the UK, on time and on budget.

REEF DESPINA AND REEF LARISSA – UPGRADE AND COMMISSIONING project


POLAR PRINCE – A FRAME UPGRADE FOR WIND FARM PROJECT

Q4 2012 TO Q1 2013

While working for Reef Subsea, we completed the upgrade of the CSV “Polar Prince” A Frame to enable the launch and recovery of a larger HDIA Plough. Our work included:

FEED Study, with approval in principle from DNV

Design Engineering for A Frame upgrade, including

  •  Design calculations and detailed structural drawings
  •  Classification society approval

Procurement of equipment

Production of ITT for Shipyard Scope of work

Project Management and site supervision

Final commissioning, testing and certification.

POLAR PRINCE – A FRAME UPGRADE FOR WIND FARM PROJECT


 GWYNT Y MÔR OFFSHORE WIND FARM - RWE

Gwynt y Môr Offshore wind farm - RWE

Q1 2013- Q4 2014

While working for Reef Subsea, we supported the Gwynt Y Mor project team with:

 

  • Vessel assessment and selection
  • Vessel assurance and acceptance by the customer 
  • Deck layout design and implementation
  • Upgrade of A Frame to suit HDIA plough, including DNV certification and approvals
  • Project Equipment mobilisation and demobilisation.
  • Operational support

GWYNT Y MÔR OFFSHORE WIND FARM - RWE

Reef Subsea was awarded Gwynt y Môr in 2012, this project went offshore in early 2013. The workscope including a simultaneous two-vessel operation, involved the installation of 161 inter-array cables (IAC) connecting the individual wind turbine generators and the two offshore substation platforms.   The vessels and deck equipment have successfully installed cables to a target burial depth of 1.5m in exceptionally challenging soil conditions up to 1000Kpa. 

We consistently performed to meet project challenges, in cooperation and collaboration with the client, including mobilizing a gradiometer survey spread and rock-grab to overcome the potential delays caused by boulders and previously declassified unexploded ordinance.


GRANE LOFS PROJECT - STATOIL

Grane LoFS project - Statoil

Q2 – Q3 2014

While working for Reef Subsea, we supported the Grane project team with:

  • Vessel assessment and selection
  • Vessel assurance and acceptance by customer
  • Upgrade of A Frame and cable burial plough, including DNV certification and approvals
  • Operational support

Reef Subsea was awarded the offshore scope for the Grane Permanent Reservoir Monitoring (PRM) System. The project, which utilised the  Olympic Zeus vessel and newly acquired HD3 Plough,  included the installation and burial 29 seismic array cables as well as other offshore construction tasks.