FREMGANGSMAATE FOR AVTETTING AV FJELL OMKRING ET FJELLKAMMER SOM ER UTFORMET I FJELLET FOR LAGRING AV ET MEDIUM HVIS TEMPERATUR LIGGER UNDER DEN NORMALE FJELLTEMPERATUREN

• Main Authors: MORFELDT, CARL-OLOF OSKAR, JANELID, ERIK INGVAR
• Format: Patent
• Language: Norwegian
• Published: 11.05.1981
• Subjects: BLASTING; CONVEYING; CYLINDERS; EARTH DRILLING; ENGINEERING ELEMENTS AND UNITS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED CONSTRUCTIONS; FIXED-CAPACITY GAS-HOLDERS; GALLERIES; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; PACKING; PERFORMING OPERATIONS; PISTONS; PNEUMATIC TUBE CONVEYORS; SEALINGS; SHAFTS; SHOP CONVEYOR SYSTEMS; STORING; STORING OF DISTRIBUTING GASES OR LIQUIDS; THERMAL INSULATION IN GENERAL; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; TUNNELS; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

Rock chambers are used for storing liquids and gases, e.g. natural gas, at low temperatures. To prevent leakage through cracks in the rock surrounding the rock chamber the invention provides a method of sealing the rock by injecting a sealing agent through drill holes in the rock. The sealing agent solidifies owing to the lower temperature of the rock and/or stored medium. The injection is continued as long as the cracks change owing to changes of temperature. Some of the drill holes or parts thereof are placed outside the zone where the sealing agent solidifies.