San Dorligo della Valle tank farm

The tank farm, which is used for the storage and handling of crude oil coming from the marine terminal through four transfer lines, occupies the southeast part of the industrial area of Trieste in the Municipality of San Dorligo della Valle.

The depot consists of 32 tanks with double seal floating roofs and a total capacity of more than 2 million cubic metres. Many different qualities of crude oil can be stored simultaneously.

Each tank is equipped with all the devices required to ensure safe operation, inspection and maintenance.

The control room, located within the tank farm and equipped with the best available technology, manages the operation of the pipeline and supervises the entire system 24 hours a day and 7 days a week by means of a sophisticated control system called SCADA (Supervisory Control and Data Acquisition).

The transfer of crude oil from the marine terminal to the tank farm is managed by the TMS (Tank Farm Management System), a system that facilitates the execution of on-site commands (pumps, valves, etc..), the complete management of the data, reports and alarms coming from such devices and the recording and archiving of all relevant technical information.

This system passes signals from on-site devices to computers that process, store and represent the data and is complemented by sub-systems that perform such specific functions as reading and monitoring the oil level in the tanks, supervising fire protection systems and recording the quantities of crude oil transported.

The operation of the pipeline from Trieste to Ingolstadt is supervised by C94, a modern digital control programme capable of capturing more than 25,000 pieces of data per second which manages the automatic processes in the pumping stations (pumps, valves, relief and delivery), gathers measurements, messages and commands, records data and performs control and safety procedures.

In addition to its control and monitoring functions, the C94 system facilitates both the optimisation process and the identification of values for recognising and localising potential leaks and triggering the corresponding alarm. 

The tank farm also contains the first pumping station which uses four 3,000 kW pumps to feed the crude oil into the pipeline.