Chisel rocket launchers BRU are intended for drilling at the expense of dynamic influence of heat and gas on breed of chinks. The basic features BRU are extremely high speed of drilling, low cost, wide diameter of a chink that allows to place the heat exchanger in the bottom of a chink, high wear resistance of the equipment.
The first drilling units have been developed in the seventies. The given technology has been adapted and finished taking into account modern technologies. Performing chisel works for chinks of different function have been designed and made various BRU, beginning from installation LEP on depth of 18 m, finishing drilling of chinks for GeoES in width of 600 mm and depth more than 1400 m.