Underground Cavern Storage of Natural Gas

Storage mode of LPG with un-lined underground cavern is introduced and successful cases in construction and operation of LPG underground cavern storage in China are given. Storage methods of CNG and LNG are described, experiences in construction of LNG underground cavern storage are provided and composition of lining structure and mechanism of rock mass ice impervious system are discussed. Combined with the information in construction and operation of the first water-sealed pilot LNG underground lining rock cavern in Taejeon of South Korea in 2001, construction principle of the advanced storage technique is presented and differences between LNG storage of underground cavern and LPG storage of underground cavern are analyzed.