UWILD stands for Underwater Inspection in Lieu of Drydocking. It is a widely used procedure in the offshore oil and gas sector and the maritime industry to carry out mandatory inspections of submerged structures of vessels and production platforms without the need to remove them from the water and take them to a shipyard.
- Replacement for Drydocking: Vessels and platforms are required by regulatory standards (such as those from IMO, classification societies like ABS, DNV-GL, BV, among others) to undergo periodic inspections, traditionally involving drydocking to access the submerged parts. UWILD allows this inspection to take place while the asset remains in operation, reducing costs and downtime.
- Execution Method: Conducted by certified divers or using remotely operated vehicles (ROVs). Includes visual inspections, thickness measurements (ultrasound), and checks for structural damage, corrosion, and the functionality of equipment such as valves, propellers, rudders, and anchoring systems.
- Benefits: Reduced downtime. Cost savings related to drydocking and logistics. Maintaining the operational capacity of the asset during inspection.
- Critical Aspects Inspected: Submerged hull: Identification of corrosion, cracks, or structural damage. Propulsion and rudder system: Verification of cavitation, misalignment, or wear. Submerged equipment: Inspection of anchoring systems, sea valves, and cathodic protection devices (anodes). Sea chests and outlets: Identification of obstructions or leaks.
- Regulations: Must be approved by the classification society in charge and comply with international and local regulations (e.g., IMO rules or authorities like ANP in Brazil).
This practice is widely applied to fixed platforms and FPSOs due to the challenges of moving these assets. Additionally, it is crucial to ensure structural integrity and regulatory compliance without interrupting production or exploration operations.
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Onderwater Inspecties met Duikers & Drones
2 个月Good piece, as an addition you could say:? ? It is also useful to first have an ROV inspection carried out by an experienced shipping diver/supervisor. The ROV does the large surfaces and possibly also propeller, rudder, sea chests, etc. This is not only good for safety, but also provides valuable information for the dive team for clearance measurements, contamination of sea chests, pintle measurements etc. etc.