BLUEWATER OFFSHORE SERVICES COMPANY
BLUEWATER OFFSHORE SERVICES COMPANY
Divers perform preventive and corrective maintenance tasks on submerged structures and equipment. Some common tasks include:
1. Hull Cleaning & Propeller Maintenance
Removal of marine growth (algae, barnacles) from ship hulls and propellers.
Reduces drag, improves fuel efficiency, and extends life of coatings.
2. Underwater Welding and Cutting
For repairing pipelines, offshore platforms, and ship structures.
Often uses techniques like wet welding or hyperbaric welding.
3. Cathodic Protection Maintenance
Inspection and replacement of sacrificial anodes to prevent corrosion.
Common on ship hulls, offshore rigs, and submerged pipelines.
4. Pipeline and Cable Maintenance
Cleaning, coating, and fixing damaged sections.
Often done with ROV support in deep waters, but divers are essential in shallow to moderate depths.
5. Intake & Outfall Systems
Cleaning and desilting of water intake systems for power plants and desalination units.
Involves use of suction tools and inspection cameras.
Inspection ensures structural integrity, identifies defects, and guides maintenance actions.
1. Visual and Video Inspection
High-resolution underwater cameras mounted on diver helmets or handheld.
Video recording and live feed for real-time assessment by engineers on the surface.
2. Non-Destructive Testing (NDT)
Techniques like:
Ultrasonic Thickness Gauging (UTG) – checks metal thickness.
Magnetic Particle Testing – detects surface cracks.
Cathodic Protection Readings – measures corrosion protection effectiveness.
3. Structure Inspection
Piers, bridge foundations, jetties, and underwater tunnels.
Divers check for erosion, scouring, cracks, biological growth, and joint conditions.
4. Mooring & Anchor Chain Inspection
Inspection of mooring lines, anchors, and chain wear.
Important for floating platforms, ships at anchorage, and buoys.
After the operation:
Divers prepare detailed inspection reports with photos/videos.
Maintenance logs are updated.
Recommendations for repairs or follow-up inspections are made.
Use of Surface Supplied Air Diving (SSAD) or Scuba depending on depth.
Divers follow strict dive tables and safety protocols.
Emergency rescue systems and standby divers are always on alert.