Surface borehole

Surface Borehole

Surface Borehole are a connection between the surface and the minig area by a vertikal borehole.

Boreholes for degassing with more than 25 % CH4

This typ of boreholes are often used in gassy mines to extract the gas from the roof of the layer. The extracted gas contains

Ventilation Borehole

Ventilation boreholes are a part of ventilation system of the mine.