Subterranean storage of natural gas has become an important part of the energy infrastructure in the last 25 years, both at a national and international level.
As the geographical distribution of sources of natural gas throughout the world does not coincide with the locations of the energy-consuming countries, securing continuous energy supply is of great importance – particularly for industrial countries. For this reason, the first salt caverns and aquifer structures were created or converted in the mid-1960s for storing natural gas to ensure stable energy supply.