Koci Drill

Description

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 The Koci Drill system has been retired as its function has now been replaced by the Winkie Drills.

Status

Decommissioned - The Koci Drill system has been retired as its function has now been replaced by the Winkie Drills.

Equipment Details

Name Koci Drill
Type
Type
Rock Coring; Ice Coring/Augering
Number in Inventory
Number in Inventory
0
Ice Core Diameter
Ice Core Diameter
76-mm (3-inch)
Rock Core Diameter
Rock Core Diameter
76-mm (3-inch)
IDP Driller Required?
IDP Driller Required?
Yes
Helicopter Transportable?
Helicopter Transportable?
Yes
Light Aircraft Transportable?
Light Aircraft Transportable?
Yes
Comments
Comments

This Koci Drill is decommissioned, as the Winkie Drill has replaced its function.

Documents

Citation Year
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

Photos

Project History

2009-2010 Antarctic - Ancient Buried Ice in Antarctica

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