MAREX SUBSEA

UNDERWATER OPERATIONS - Marex Inspection

Before a jack-up reaches location, buoys are normally dropped off to mark the centre and leg positions. Marex’s divers are required to do a circular search of these position to ensure that the legs will be clear of debris Marex measure de depth of penetration of the legs using an air probe in area of strong currents, our divers will have to check for scour around the legs and, if necessary, fill scour holes with sandbags and build a protective wall around the base of the legs Marex inspecting and repairing the hull Checking anchor rack and fairleads Marex checking for debris and penetration of the pontoons (if resting on the seabed) when in shallow water Inspecting Thrusters, pontoons and all underwater parts of the structures Assisting with the rigging of anchor pendant wires Assisting with the recovery of any lost or damaged equipment Inspect, maintain and repair ship’s accessory structures such as moonpool doors Inspect all the ship’s thrusters and keep them clear of fouling

APPLIED TECHNIQUES - Marex Inspection

Corrosion Prevention Underwater cutting Underwater welding Dry Welding Hyperbaric Underwater concreting Explosives Explosive tools Rigging Lifting Operations Air lifts and dredges