This method is utilised when drilling hard rock or hard ground. Diamond drilling employs an annular diamond-impregnated drill bit attached to the end of hollow drill rods to cut a cylindrical core of solid rock. Drillwest’s Diamond rigs can be used for Diamond drilling or as a part of a multi-combination rig.
RIGS 4 & 5: DIAMOND RIGS – Boart Longyear LF 90D
The LF90D Drill rigs were purchased new in 2007. They have worked in various regions of WA and the Northern Territory. The rigs and rod sloops are all on jack up bases, this minimises the manual handling of drill pipe. This type of rig is capable of drilling depths of approximately 635m HQ, 940m NQ and 420m PQ.
RIG 6: TRACK MOUNTED DIAMOND RIG – Boart Longyear LF 90D
This LF90D Drill rigs was purchased new in 2008. It has worked in various regions of WA and the Northern Territory. The rig is track mounted for maximum manouvreability and access to difficult terrain. The rig is capable of drilling depths of approximately 635m HQ, 940m NQ and 420m PQ.
RIG 7: Hydco 1200H
This rig was purchased new in September 2011.
This universal rig has the capability of drilling in either RC or Diamond mode. It has a capacity of 1200m HQ, 1800m NQ and 800m PQ.
Drillwest has been operating three LF90D Diamond Drilling rigs since 2007. Each is capable of drilling to depths of 635 metres HQ, 940 metres NQ and 420 metres PQ.