Detection experiment of small leakage of long distance natural gas transporting pipeline based on airborne laser equipment

Key words:  natural gas  long distance transporting pipeline  small leakage  laser detection

Abstract:

The effectiveness of airborne laser detection equipment on buried pipeline small leakage was firstly validated by experiment. Dispersion range of pipeline small leakage was simulated by software and verified by experiment. The methane clouds produced by artificial leakage sources, which are placed at plain and hill, are detected by the equipment on helicopter. The flight height is 60-150 m at plain. Five artificial leakage sources are placed along the West East Pipeline at hill where flight height is 60-500 m. Experimental results show that airborne detection method is suitable for plain, desert, gobi but unfit for the area with large altitude diversification.