At the present

nobody proposes a comprehensive evaluation standard of applicabilities for gas storage in rock salt (ESAGSRS). ESAGSRS is came up based on studying a large number of underground gas storage accident cases. The standard is divided into two aspects

stability and sealability. Factors affecting the stability are natures of top and bottom

natures of salt beds and interlayers

natures of interface between salt beds and interlayers

the maximum and minimum pressures and gas recovery velocities

cavity shape and safe pillar width five aspects. Factors affecting the sealability including airtight cementing technology

natures of casing

natures of valve for casing

cavern pressure

natures of roof

natures of interlayer

penetration of rock salt conditions

stiffness ratio of salt rock and interlayer

geological conditions. Based on ESAGSRS

the total score of the applicability of gas storage can be gotten

and it can appraise the applicability of salt rock. The standard (ESAGSRS) considers miscellaneous factors

and it has a valuable reference and academic supports to practical projects.