Shaft Drillers Australia Pty Ltd (SDA) is a division within a large global entity that provides a range of specialized services to the energy and mining industry. Amongst these specialty services is the drilling of large diameter shafts for underground mine ventilation, utilizing blind bore drilling techniques that allow the shaft development to be done in parallel and independently to any underground work.Foundation drilling, ground stabilisation, drilling of horizontal directional and conventional oil and gas wells (in addition to gas well plugging services), construction and maintenance of gas pipelines and construction of gas compressor stations are amongst some of the other services provided by SDA.The one-stop Australian contractor for shaft drilling, foundation drilling, horizontal directional drilling and pipeline construction.