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Qatargas 4
Laffan Refinery
Qatargas 4

Qatargas 4 - Completing the vision

Qatargas 4 (QG4) which started producing LNG in January 2011 completes Qatargas’ planned LNG expansion projects. The project QG4 involved the construction of a new LNG mega-train (Train 7), similar to Qatargas 2 and Qatargas 3 with a production capacity of 7.8 MTA.

The upstream platforms and infrastructure consist of three unmanned platforms (each containing 11 wells) and two subsea pipelines, which are shared with Qatargas 3. Qatargas 4 will produce 1.4 billion standard cubic feet of gas per day delivering LNG and substantial volumes of condensate and LPG, as well as high purity grade sulphur.

QG 4 utilises the same Air Product’s proprietary APX process technology as QG 2 and QG 3, helping to achieve economies of scale and integration not previously possible in the LNG industry. The QG 3 and QG 4 projects were developed and executed by a joint asset development team to capture synergies between the two projects.

The LNG from QG 4 is transported to global markets via a fleet of eight Q-Flex or Q-Max ships (approximately 210,000 – 266,000 cubic metres capacity each) that have been constructed in Korean shipyards. Qatargas’ seventh train will predominantly supply North America, the Middle East and Asia.

Facts and figures about Qatargas 4:


  • Qatar Petroleum 70%
  • Royal Dutch Shell 30%

Train capacity

  • One train with a capacity of 7.8 mtpa

Number of ships built

  • Eight ships of between 210,000 -266,000 cubic metres capacity

Primary destinations

  • United States, Asia and Europe

First cargo

  • February 2011

Key events

  • FEED contracts awarded – January 2005
  • Heads of Agreement – February 2005
  • Onshore EPC awards – December 2005
  • Foundation stone laid – April 2006
  • PIM issued to lenders – July 2006
  • Offshore Topsides EPC awards – July 2006
  • Offshore installation of wellhead platform jackets - September and November 2006
  • Sales and Purchase Agreement signed - July 2007
  • Financing closed - July 2007
  • Start of production - January 2011

Please click here to download a pdf version of the fact sheet.
Please click 
here to view images.



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