These are specialised types of ship for transporting the crews, the provisions, machinery, drilling equipment, tools, fuel and other materials to the offshore drill rigs and platforms.
Ezi zintlobo ezikhethekileyo zenqanawa zokuthwala amaqela, imiphako, oomatshini, izixhobo zokwemba, izixhobo, ipetroyile nezinye izinto kude nonxweme zomba imingxunya neendawo yokulinda.