- carrying out the works on laying the pipeline and conduit
- survey of the crossing routes
- excavation
- stowage and installation of weights
- formation of banqueting protection
- installation of pipe inserts
- execution of works to reduce flange connections of any diameters
- installation the various types of seals
- installation of sealing clamps in places of the TFR
- use all types of underwater welding and cutting the metals
- cutting reinforced concrete structures
