Pergas Projects 2002 - 2003: South Pars phases 4 & 5

The project for development of Phases 4 & 5 were designed and implemented to produce 56 MMscf/d of natural gas. The development of the phases 4 and 5 was awarded in 2000 to a consortium formed by Agip (60%) and Petropars (40%, on a buy-back basis). The project was officially inaugurated in April 2005 and is producing more than one billion cubic feet of sour gas a day. Iran's construction share of the project was more than 44%, equivalent to $850m.


 The objectives of developing phases 4 and 5 are as follows:


  •      Daily production of 50 million cubic meters of natural gas.

  •      Daily production of 80,000 bl of gas condensate.

  •      Annual production of 1 million tons of ethane as petrochemical plants feedstock.

  •      Annual production of 105,000 tons of liquid gas (propane and butane) and LPG for export.    

  •      Daily production of 400 tons of sulfur.

  •      The share of local players amounting to 42% has been distributed.


 Offshore Facilities:


  •      Two production platforms, some 100 km far from the shore with 24 wells.

  •      Two 32 inch offshore pipeline for transferring gas to the onshore refinery.

  •      Two 4.5 inch pipeline for transferring Glycol solution.


 Onshore Facilities:


  •       A 56 inch pipeline of 67 km for transferring gas to the country gas trunk line.

  •       A 30 inch pipeline for dispatching gas condensate from the reservoir to the condensate measurement station.

  •      Gas and gas condensate receiving and separation unit, gas condensate stabilization, gas sweetening and dehydration  unit.

  •      Gas dew pointing unit, demercaptanization and gas compression units for transfer.   

  •      Sulfur recovery and granulation; and Mono Ethylene Glycol regeneration unit.

The development operation of the above mentioned phases was awarded to a consortium comprising of Eni of Italy (60%), Petronas of Malaysia (20%) and NIOC (20%) in July 2000. The refinery came on stream officially on April 17, 2005 in presence of the then esteemed president of I.R.of Iran.


Pergas designed and built thirty-two sets of Separator & KO Drums for Hyundai HDEC ( and also supplied 4 Filter Vessels for OIEC/Peerless ( The total weight of the thirty-six sets was 719 MT and finished in 18 months.