Optimising tank inspections with drone technology

Client challenge
The client, an international offshore and marine company, faced the challenge of conducting a comprehensive General Visual Inspection (GVI) and Close Visual Inspection (CVI) for tanks on a double-hulled FPSO. The vessel was undergoing major refurbishment at a shipyard in Southeast Asia and the scope included 15 Crude Oil Tanks, 10 Ballast Tanks, and various ancillary tanks and void spaces.
What we did
To address the safety risks and time constraints associated with traditional inspection methods, Sky-Futures employed Unmanned Aerial Systems (UAS) or Drones as the primary method. A 2-man crew, equipped with a collision-tolerant drone featuring on board lighting and Sky-Futures’ proprietary inspection techniques, efficiently conducted the GVI and CVI scope. This approach minimized disruption to other working crews and reduced the need for extensive scaffolding.

Results
The use of UAS inspection techniques resulted in a remarkable two thirds reduction in the time typically spent on scaffolding, demonstrating substantial time savings for the client. Additionally, the approach significantly decreased the need for personnel working at height, thereby mitigating risks associated with the inspection and rectification of tanks. The inspection, supervised by Lloyd’s Register and conducted in collaboration with the shipyard, showcased the effectiveness of remote inspection techniques. Sky-Futures’ drone inspection methods received certification from the American Bureau of Shipping (ABS), establishing Sky Futures as a recognised external specialist by ABS. This case exemplifies the successful integration of drone technology to enhance safety, efficiency, and certification recognition in complex maritime projects.