Abstract:

Underground gas storage facilities are an integral part of the gas transmission system of the Russian Federation and play a key role in ensuring the reliability, stability, and flexibility of gas supply under conditions of seasonal and daily fluctuations in natural gas consumption. This paper presents a comprehensive review of the current state of underground gas storage in Russia. The main types of underground gas storage facilities, including depleted gas and gas-condensate fields, aquifer reservoirs, and salt caverns, are considered. Geological and hydrodynamic conditions for the creation and operation of underground gas storage facilities are analyzed, along with modeling methods for gas injection and withdrawal processes and factors determining operational efficiency and industrial safety. Particular attention is paid to storage integrity issues, cyclic reservoir loading, and prospects for the implementation of digital monitoring and control technologies. It is shown that further development of underground gas storage in Russia is associated with the improvement of geological and hydrodynamic modeling methods, the expansion of intelligent management tools, and the integration of gas storage facilities into the digital infrastructure of the Unified Gas Supply System.

Keywords: underground gas storage, natural gas, depleted fields, aquifer reservoirs, salt caverns, gas transmission system, geological and hydrodynamic modeling, energy security.