GREAT SOUTHERN DRILLING 

Gathorne Street, Cranbrook, 
WA 6321
Australia

PO Box 157, Cranbrook,
WA 6321 
Australia

Tel: +61 08 9826 1223 
Fax: +61 08 9826 1228 

gsdrilling@bigpond.com  

Type of operations: Auger, RAB, DHH, Diamond Coring, RC, Mud Rotary, Aircore for Casing Placement, drilling in confined spaces. 
Specialist sectors: Vibro Probe Coring, Waterwell, Geotechnical, Mineral Exploration, Environmental, Site Investigation.

Our company has an environmental air core system that allows solvent welded 50mm PVC to be installed through the rods, then gravel pack and cement grouting can be carried out through the 
rods as they are removed from the hole. This same system is also suitable for geotechnical work where SPT and Shelby tube sampling is needed, with the ability to NQ core through the rods if 
needed. Our Probe machine is a Geoprobe 7720 track machine with sampling size up to 60mm enclosed core.
We travel State wide. Our Aircore system has been designed and tested to cope with saturated sands and can be used as a precollar for tubing or casing up to 75mm O.D. Its Dual dual tube arrangement and twin bit assembly produces better penetration in hard formations. This system is ideal for installation of monitoring bores and piezometer.