Dragon Drilling install landfill gas boreholes to depths in excess of 70m.
Borehole diamter is usually 450mm and casing sizes are specified by the client. Field engineers are avaiable for butt fusing casing.
The boreholes have an upper seal of fully hydrated bentonite using the Dragon Drilling bentonite mixing machine which is attached to a mini excavator. The machine was granted a patent on the 15th June 2007. (GB 2433215)
