Locate and seal of a hole in a water ballast tank on a crude oil tanker
At December 28:th, Frog Marine Service was contracted to locate and seal of a hole in a water ballast tank on a crude oil tanker, anchored on Danafjord,
outside Gothenburg. FMS hade to install a cofferdam over the 40 mm big hole to allow for welders from Scanunit to work from the inside.
Bracket to push cofferdam tight against the hull.
Welding machine to tack weld the bracket on to flat bottom. (temporary installation)
Diving boat Frog Taurus
Magnet and hand tools.
Rescue diver/Dive tender