The Mercator Group has created a video film on the unique engineering structure, the Uvyazov underground gas storage, by request of Mostransgaz Ltd.
In winter Moscow requires twice as much gas as in summer. The only way to provide for such demand swings is the use of gas storages to stack gas in the summer, then to retrieve it in the winter. Natural underground reservoirs located at depth of 700-800 meters are used for gas storage. The gas injection is performed with compression pumps with the built in aircraft engines reequipped for gas fuel. It turns out that the gas is pumped underground with the help of the gas.
The film provides an excursus into the history of underground gas storages construction and describes the main technologies of gas storage.