The Koci Drill, named after the late drill engineer Bruce Koci, was an electromechanical, single-barrel coring drill that was designed to operate in ice containing limited amounts of sand, silt and very small sedimentary rocks. The system included cutters with replaceable carbide inserts for drilling in mixed media ice. A non-coring rock bit and auger was used for penetrating through larger segments of rock and gravel. The drill bit was rotated via a rigid drill string by a surface-mounted electric motor mounted to a tower. Drill penetration was controlled by a feed system on the drill tower to account for varying ice conditions. The drill produced 76-mm (3-inch) diameter cores a few tenths of a meter long. The drill sustained significant damage during its last deployment in 2009-2010. Community enthusiasm is now focused on sub-glacial rock coring. To that end, IDP purchased two shallow off-the-shelf rock coring drills and has modified them to drill and core clean ice, mixed media and bedrock. The Koci Drill system has been retired as its function has now been replaced by the Winkie Drills.
Decommissioned - The Koci Drill system has been retired as its function has now been replaced by the Winkie Drills.
Rock Coring; Ice Coring/Augering
|Number in Inventory||
Number in Inventory
|Ice Core Diameter||
Ice Core Diameter
|Rock Core Diameter||
Rock Core Diameter
|IDP Driller Required?||
IDP Driller Required?
|Light Aircraft Transportable?||
Light Aircraft Transportable?
This Koci Drill is decommissioned, as the Winkie Drill has replaced its function.
|Charles R Bentley, Bruce R Koci, Laurent Augustin, Robin J Bolsey, James A Green, Jay D Kyne, Donald A Lebar, William P Mason, Alexander J Shturmakov, Hermann F Engelhardt, William D Harrison, Michael H Hecht, Victor Zagorodnov (2009) Chapter 4: Ice Drilling and Coring. Drilling in Extreme Environments: Penetration and Sampling on Earth and other Planets (eds Y. Bar-Cohen and K. Zacny), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, 221-308. doi: 10.1002/9783527626625.ch4. https://doi.org/10.1002/9783527626625.ch4||2009|
|James A Green, Bruce R Koci, Jay D Kyne (2007) Koci drill for drilling in ice, sand and rock: drill requirements, design, performance, difficulties. Annals of Glaciology, 47, 105-108. doi: 10.3189/172756407786857677. https://doi.org/10.3189/172756407786857677||2007|
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