Nautilus is a compact, intrinsically safe robotic system for in-service inspection of above-ground petrochemical storage tanks. It enables remote inspection of tank floor plates without draining the tank, purging vapours or sending personnel inside.

The robot operates fully submerged in oil and in explosive atmospheres, entering through standard manways and traversing the tank floor.

Using an ultrasonic probe, Nautilus gathers thickness and corrosion data with associated location information for detailed post-processing.

This non-destructive testing (NDT) capability supports safer, lower-cost integrity management compared with conventional manual internal inspections.