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MARINE & COMMERCIAL DIVING OPERATIONS in refineries

THALASSA HOLDINGS provided Marine and Commercial Diving Services to Motor Oil Hellas at Agioi Theodoroi – Corinth, one of the leading energy sector companies in Greece and the wider Eastern Mediterranean region, established in 1970.

Scope of Work:

The project involved underwater inspection at a depth of 25 meters, focusing on the anchor chains connecting cement blocks to the mooring buoys, as well as the structural inspection of the old steel pier pillars.

On-site operations included:

  • Cutting of Kenter shackles from the cement blocks

  • Lifting of mooring buoys and their anchor chains using a floating crane barge for further examination, maintenance, and repair

  • Removal of old steel pier pillars, each measuring 25 meters in length, 1.8 meters in diameter, with a wall thickness of 35 mm and weighing approximately 60 tons

    • The first cut was executed at 12 meters water depth using hydraulic cutting tools

    • The second cut was executed at 23 meters water depth using Oxy-Arc/burning methods, in accordance with the refinery’s HIRA procedures

All works were successfully completed to the satisfaction of the Client and the Technical Manager.

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