To deliver quality services to our clients A. Levis and Sons utilize a well maintained EDSON
6000 model drill rig.
Our rig was custom built and designed to enable us to easily change drilling
methods to cater for all of the known formation types in both the Perth Hills and
Coastal Sand Plain areas.
The drill rig is mounted on a 8x4 Volvo truck and we use three main drilling techniques:
Down Hole Hammer (DHH): We utilize 6" and 8" pneumatic down-hole hammers to drill holes up to 305mm in diameter, down to 150m in Hard Rock formations. Average penetration rates in granite and basalt rock formations have been known to exceed 30 metres per hour.
Rotary Air: Compressed air is pumped down the drill string and out through nozzles in the drill bit to flush the cuttings clear of the hole and advance the drill bit. Penetration rates are generally faster than Rotary Mud Drilling however is slowed upon encountering Hard Rock.
Rotary Mud: Drilling mud is circulated down the drill string and out through the drill bit to flush the cuttings clear and up the annulus of the bore to advance the drill string. We use a polymer based drilling mud which is much easier to break down with a simple dose of chlorine to remove the wall cake from the formation, thus speeding up subsequent development times.
Our current Drilling Capabilities are:
150mm-500mm Diameter holes drilled to a depth of 150m
Capable of installing FRP, PVC or Steel Casing and well screens, up to 200mm ID, to a depth of 150m
EDSON 6000 Drill Rig mounted on 8x4 Volvo
Mud Cleaning, Conditioning and Grouting Truck, mounted on 6x4 Volvo (Under Construction)
5500L Water/Support Truck with Hiab mounted on 6x4 Volvo
4x2 Mitsubishi Canter Trayback
4x4 Toyota Landcruiser Trayback
5x6" Gardner Denver Duplex Pump
100/80 Centrifugal Pump
900/350 Atlas Copco Compressor
Diesel Transfer Pumps
Case 580SK Backhoe
Drill Bit selection includes drag, tricone and PCD bits to 500mm Diameter