Reactivating method for underground degassing system, blocked by fluids, particularly in landfill sites, involves inserting device in blocked pipeline of degassing system up to closing location, suitable for making perforation in pipe wall

摘要

The reactivating method involves inserting a device in a blocked pipeline (4) of a degassing system up to a closing location. The closing location is suitable for making a perforation in a pipe wall through an opening in bottom proximity of a piping section, which allows a fluid discharge. The device is removed after the perforation, done on the inner side of the piping section with a pyrotechnic punching device (10), which is electrically ignited from outside of the piping section. A projectile impacts against the pipe wall by the pyrotechnic punching device. An independent claim is also included for a device for a reactivating method for an underground degassing system, blocked by fluids, particularly in landfill sites.