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A new large-diameter ice-core drill: the Blue Ice Drill
Authors: Kuhl TW, Johnson JJ, Shturmakov AJ, Goetz JJ, Gibson CJ and Lebar DA
Year: 2014
Keywords: blue ice, ice engineering
Periodical/Journal: Annals of Glaciology
Volume: 55
Number: 68
Page Range: 1-6

The Blue Ice Drill (BID) is a large-diameter agile drill system designed by the Ice Drilling Design and Operations group of the University of Wisconsin-Madison to quickly core clean 241 mm diameter ice samples from near-surface sites. It consists of a down-hole motor/gear reducer rotating a coring cutter and core barrel inside an outer barrel for efficient cuttings transport in solid ice. A variable-frequency drive and custom control box regulates electrical power to the drill. Torque reaction is accomplished on the surface via handles attached to a torsion stem. Core recovery is achieved with either core dogs in the sonde or with a separate core recovery tool. All down-hole tools are suspended on a collapsible tripod via ropes running on a capstan winch. The BID is operated by a minimum of two people and has been used successfully during two seasons of coring on a blue ice area of Taylor Glacier, Antarctica. An updated version of the drill system, BID-Deep, has been designed to recover cores to depths up to 200 m.

DOI: 10.3189/2014AoG68A009
URL: View document