BMC – Exploration / Geotechnical Helicopter and Skid Drilling

  • SECTOR: Mining
  • LOCATION: Ross River, Yukon, Canada
  • DATE: 2015
  • EQUIPMENT: Hydracore 2000 and Zinex A5

Geotech Exploration completed an exploration and geotechnical drill program in the remote area of Ross River, Yukon. Throughout the program a crew of over 30 personnel drilled HQ3 and NQ3 core methodologies in challenging ground conditions, while recirculating drill returns when encountering sulphides to capture all spoils. Through scope changes and additional meters, the crews maintained 60 to 70 meter per day average.

Further to the drilling program, Geotech completed “parent” and “daughter” holes while setting two-piece wedges to collect duplicate samples of the ore zone within the pre-determined drill holes. This was completed on 10 HQ size holes. Packer testing, SPT sampling and well installations were also completed with the same diamond drilling equipment for a geotechnical component of the program. A total of 25,000 meters was drilled by 4 helicopter portable and skid mounted drills, with hole depths ranging from 20 meters to 450 meters.

CHALLENGES

  • Broken and faulty ground
  • Recovery challenges due to soft formations
  • Recirculation requirements
  • Advanced ramp up of equipment/personnel during peak season (2 drills to 4 drills)


ACHIEVEMENTS

  • Ability to supply capable staff and additional equipment on time for scope increase
  • Mud programs to increase and maintain recovery percentages
  • Modifications to exploration drills to successfully complete geotechnical drilling