Project Description:
The method used by Brand Drill Torrex to make vertical shafts is to drill a pattern of 4 ½” holes and then blast in several steps. To drill the 4 ½” holes, pneumatic hammers have been used up to now. However, with air it takes approximately three weeks to finish a shaft of 30 meters. With Wassara W100 Drilling System the same job is completed in one week. Furthermore, the requirement that the hole deviation must not exceed 1% is easily achieved with the Wassara system.
Result:
By using the Wassara System the completion time is reduced by a factor of three which results in considerable cost savings for the customer.
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Equipment: |
Hammer |
Wassara W100 |
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Bit |
Wassara 115 mm |
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Pump |
Crown Chrome 290 Lpm |
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Drilling fluid |
Clean water |
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Drill pipe |
Wassara 1500 mm, diameter 102 mm |
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Rig |
Own design |
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Formation |
Quartzite |
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Other |
Wassara Swivel Stenberg 600 |