Drilling Methods
RAB
This is an older exploration drilling method. Sample quality is less accurate than Air Core due to the usage of a single tube.
Air Core
In 1987 we purchased our first Air Core system. From the first job we had major problems with drilling clays and found we couldn’t drill more than 200mm without the bit and inner tubes blocking up.
Slimline RC
We have designed and developed a new small diameter RC Hammer to drill into basement formations.
Zero Impact
Zero Impact Drilling can best be described as the mobilisation to and completion of a drilling program whilst causing no noticeable and lasting side effects or damage to the immediate environment.
METHOD | HOLESIZE | DEPTH | RIG AIR | COMMENTS |
RAB | 98mm – 102mm | 120 m | 600CFM / 250PSI | Will drill weathered horizon, ground conditions allowing, to 120 meters. |
Aircore | 85mm – 87mm | 120 m | 600CFM / 250PSI | Will drill weathered horizon to 120 meters (including paleo channel) |
Aircore (Hammer) | 85mm – 87mm | 120 m | 600CFM / 600PSI (Boosted) |
Will drill weathered horizon to 120 meters including paleo channel, but faster in difficult drilling. |
Slim Line RC / Light RC |
95mm – 97mm Face Sampling RC Hammers |
150 m | ≤900CFM / 750PSI (Boosted Aux Comp) | Will drill dry holes to 100 meters as fast as 4” RC, and “Wet” holes to approximately 80 meters |
Medium RC | 127mm -143mm | 300 m | 1800CFM / 700PSI | Will drill hard formation to 300m, depending on total CFM used and water table. |