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EXPLORATION

August 29, 2017

Triple Threat: Stage™ 3 diamond bit extends life, improves productivity and exceeds expectations

Case study: The Stage™ 3 Diamond Coring Bit is Field Tested

Overview:

Drill Crews Experience a 300% Increase in bit life

At a nickel mine in Manitoba, Canada, Boart Longyear Drilling Services field tested the new Stage™ 3 25mm diamond coring bit in a multi-site deployment. Drill crews experienced bit life gains of up to 300% over their previous standard 12mm crown.

Boart Longyear Drilling Services has employed 12mm bits for more than three years at a nickel mine in Manitoba, Canada. The ground conditions are demanding due to the variability in the formation, not only from one part of the mine to the other, but even within a single hole. Formations in Manitoba are typically hard abrasive quartz mixed with medium hard and coarse ground.

Until recently, the 12mm 08ABR formula had proven to be the best bit in use at the mine with an average bit life of 37.5 meters.

 

The Challenge

Extending Bit Life in Hard, Abrasive Ground Conditions

With the proven performance of the 12mm crown, the drilling crews were unsure about trying the new 25mm Stage™ 3. Boart Longyear field engineers knew that upgrading to the Stage™ 3 would provide a significant performance increase. Engineers delivered the bits to the drill crews in the 08ABR formula.

The Solution

Bit Life is More Than Three Times as Effective

After putting the bits to the test, the drill crews were stunned by the 25mm Stage™ 3 results. The average bit life of the Stage™ 3 was 120 meters—more than three times the life of the 12mm crown.

As more Stage™ 3 bits are deployed in the field, the results continues to prove what drillers and mine operators are saying: “Boart Longyear has delivered another industry first.”

ProductStage™ 3 Diamond Coring Bit
LocationManitoba, Canada
ApplicationField Testing of the Stage™ 3 Diamond Coring Bit Compared to a 12mm Crown

Vital Stats 

  • The average bit life of the Stage™ 3 25mm was 120 meters.
  • Industry first in advanced drilling products.
  • Extended bit life. 

What does Boart Longyear have on the horizon for diamond bits? Check out this video for a sneak peak into new developments in Boart Longyear's diamond bit technology. 

Media Permission: Boart Longyear grants you immediate agency to republish this article. We request that you cite Boart Longyear as the source and provide a link back where appropriate.

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Chris Lambert

MEET THE AUTHOR Chris Lambert Chris Lambert has a bachelor’s degree in mechanical engineering and has been with Boart Longyear since 2008. He has been the company’s global product manager for coring tools, including rods, in-hole tools and diamond bits, since 2012. Prior to that, he was the engineering manager for diamond products. His 20-year engineering and product development career has included materials, hydraulics, pumps and diesel engines.

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