English to Polish Tech/Engineering Mining & Minerals / Gems

Chodzi o podziemne zgazowanie węgla (UCG):
"To start the UCG process, an ignition tool is connected to the coil tubing and inserted into the injection well. The ignition tool then travels through the injection well and is positioned ready for ignition. Heat generated from the ignition tool and the oxygen pumped from the surface start the coal gasification process."