The Platform seen off the coast of Funchal is called Platform Balder, and is passing by on its way to Gibraltar and then on to Turkey.
The Tug Boat Carlo Martello pulling the rig visited he Port of Funchal to refuel.
The Balder is a curious platform-type marine structure, with dimensions of 154m × 85.99m in overall length, built in 1978. It has a gross tonnage of 75374 and ships with Panama flag.
It is a semi-submersible crane capable of laying pipes, for example, oil extraction at the bottom of the sea, at depths of three thousand meters. It has its own propulsion, which can be facilitated by means of tugboats, and has two cranes, one capable of lifting 3600 tons and another 2700 tons.
Information from FN