GRADED UNDERGROUND PUMPED-STORAGE HYDROPOWER IN COAL MINE, CONSTRUCTION AND USING METHODS

METHOD FOR BACKFILLING AND RECONSTRUCTING CARBON STORAGE SPACE IN ABANDONED MAIN ROADWAY AND STORING CO2

COMBINED PROCESS OF INTEGRATING STOPING-BACKFILLING AND CARBON STORAGE

APPARATUS AND ITS OPERATION METHOD OF SALT CAVERN GAS STORAGE WITHOUT CUSHION GAS

System and method for compressed air energy storage

Liquid taking device and liquid taking method

I-shaped water-retaining dam for underground reservoir in coal mine

Artificial dam of distributed coal mine underground reservoir and its constructing method

Underground Silo System for Storing Liquids

Opencast coal mine underground water reservoir

Tunneled gas storage

Method for distributed storage and use of underground water in mine

Mining system with sustainable energy reservoir legacy

Apparatus and methods for forming and using subterranean salt cavern

Manifold string for selectivity controlling flowing fluid streams of varying velocities in wells from a single main bore

Apparatus and methods for forming and using subterranean salt cavern

METHOD FOR CONSTRUCTING AN UNDERGROUND TUNNEL OR HOLE TO CREATE AN IMPERVIOUS PLUG FOR THE STORAGE OF HAZARDOUS, PARTICULARLY RADIOACTIVE, WASTE

Method For Underground Storage Of Ecologically Hazardous Agents And Device For Carrying Out Said Method

Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method

Disposal of biomass waste

Method and system for selecting and using a salt cavern to store very pure hydrogen

System for forming and maintaining a fundamentally impervious boundary in a salt cavern for storing very pure hydrogen

Method for storing very high purity hydrogen in a salt cavern

Method for forming and maintaining a fundamentally impervious boundary to very high purity hydrogen in a salt cavern