Underground LPG cavern.

  • Civil Work
    • Volume: up to 150.000 m3.
    • Depth of cavern: up to 100 m.
    • Water seal: ice surrounds the cavern.
    • Reinforcement: shotcrete, rock bolt, grouting.
    • Concrete Plug: seal the access tunnel.
  • Process
    • Freezing process: Storage temperature: -1000C to +100C (Ethylene to Butane)
    • Air circulation to test leakage.
    • Pressure: from atmospheric pressure to 6barg