LOTOS x Reconstruction of B3 wells - video

The world of professional diving is usually very inaccessible for people who are not active in this field. There is completely different equipment used, different rules apply, and there are far fewer photos and videos from this type of diving than from recreational or technical diving. Therefore, today we have a real gem for you!

The Petro Giant drilling platform is located in the Baltic Sea, in a location referred to as the B3 field. It is here that well reconstructions are carried out at a depth of around 80 metres during demanding saturation dives.

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The divers descend into the water from the platform deck, where the apparatus used during the work and the entire diving system is installed. In a special bell, the divers are lowered to the required depth (here 70-80 m) and carry out repair work on the installation. At this depth, in a saturation dive, a diver can work for 4 hours (then a colleague changes him). This gives 16 hours of work per day for the divers.

Once the work is done, the diving bell is pulled out onto the platform deck where the diving system is set up together with the hyperbaric chamber. Like a rocket docking with the space station, the bell is connected to the hyperbaric chamber by a system of sluices. Through the sluices, where the pressures are equalized, the diver enters the hyperbaric chamber where he rests, eats, sleeps, waits to be called to work and spends time until the end of the planned underwater work. Including compression and decompression time, a diver can spend up to 28 days in the chamber.

^{Source: LOTOS Group}