Gas: production and storage

After building our expertise in the gas sector on major French projects, we decided to expand our sphere of expertise at an international level.

Gas projects concern the transport, storage, and distribution of gas. The most noticeable aspects of these projects are, for methane, the LNG chain (Liquefied Natural Gas) and LNG terminals, and for butane and propane storage in LPG spheres. Their end goal is producing energy by means of the combustion of these gases, which has an environmental benefit: the CO2 content is 3 times lower than that for electricity produced by fuel oil.

For domestic use in heating and cooking methane is known as natural gas, but its use is growing in industry, for public transport and in electricity generation. The proportion of natural gas in global energy consumption has been growing steadily for the last 30 years, especially in Europe.

LNG plays an increasingly important role in the global energy industry, due to abundant global reserves of natural gas and the ease of transporting it over long distances.

This phenomenon results in proper supply chains including production wells, treatment plants, pipeline networks, liquefaction plants, LNG loading terminals, import and storage terminals, regasification plants and plants for reinjecting gas into the distribution network.

Major player in gas engineering, Sofren brings its liquefied natural gas expertise to bear throughout the entire chain – production, processing, transport, and storage:

  • LNG terminals
  • Compressor or recompression stations
  • Transport
  • Regasification


This expertise was initially developed on the major projects in France (Fos Cavaou, Dunkerque, Montoir-de-Bretagne, Fos Tonkin) in which Sofen was involved, not only on the engineering work through its own design offices but also in project management and on site works. This know-how was then exported internationally and was further strengthened on offshore projects with major technological challenges – mainly through FLNG (Floating Liquefied Natural Gas) operations.

In projects conducted alongside its customers, Sofren operates on three levels:

  • Multi-disciplinary technical expertise
  • Safety studies
  • Technical audit of installations


Butane and propane are easily liquefied and are stored in distinctive LPG spheres, before being sold in bottles or tanks in service stations. They make it possible to meet energy needs anywhere, including in remote areas where they offer an alternative to natural gas and electricity for cooking, heating, and hot water.

Gas projects cover all the above installations, gas pipelines, compressor stations, underground storage facilities, pumping and transfer stations, etc. In these structures, particular importance is given to fire detection and fighting, and secondly to fiscal metering on the volumes handled.

The Sofren engineers involved in these projects are from all disciplines and have recognized expertise in installation safety, control systems, gas equipment and machinery, and regulatory compliance.


gas production and storage