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DISC drill and replicate coring system: a new era in deep ice drilling engineering

  • Alexander J. Shturmakov (a1), Donald A. Lebar (a1) and Charles R. Bentley (a1)
Abstract
Abstract

The deep ice sheet coring (DISC) drill and replicate coring system (RCS) were designed and manufactured by Ice Coring and Drilling Services/Ice Drilling Design and Operations group of the University of Wisconsin–Madison. The DISC/RCS is an electromechanical system designed to take 122 mm diameter ice cores from the main borehole and 108 mm diameter replicate ice cores to depths of 4000 m. Detailed design of the DISC drill began in 2003, and the completed drill was tested in Greenland in 2006. During five consecutive field seasons at West Antarctic Ice Sheet (WAIS) Divide, 3405 m of ice core were drilled, setting the US deep ice drilling record. The RCS, based on the DISC drill, was developed and built in 2010/11, tested in Antarctica during the 2011/12 WAIS Divide field season and tested further in Madison, WI, during summer–fall 2012. During the 2012/13 Antarctic field season, the system produced five azimuth and depth-controlled deviations at four target depth levels. A total of 285 m of replicate ice core was recovered in the first coring of its kind. The entire main/replicate ice core, including ductile, brittle and warm ice, had excellent quality and satisfied the needs of the ice science community.

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References
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Bentley CR and 12 others (2009) Ice drilling and coring. In Bar-Cohen Y and Zacny K eds Drilling in extreme environments: penetration and sampling on Earth and other planets. Wiley-VCH, Weinheim, 221308
Gibson CJ, Johnson JA, Shturmakov AJ, Mortensen NB and Goetz JJ (2014) Replicate ice-coring system architecture: mechanical design. Ann. Glaciol., 55(68) (doi: 10.3189/2014AoG68A019) (see paper in this issue)
Johnson JA and 7 others (2007) A new 122 mm electromechanical drill for deep ice-sheet coring (DISC): 5. Experience during Greenland field testing. Ann. Glaciol., 47, 5460 (doi: 10.3189/172756407786857730)
Johnson JA, Mortensen NB, Gibson CJ, Goetz JJ and Shturmakov AJ (2014) Replicate ice-coring system testing. Ann. Glaciol., 55(68) (doi: 10.3189/2014AoG68A034) (see paper in this issue)
Mason WP, Shturmakov AJ, Johnson JA and Haman S (2007) A new 122 mm electromechanical drill for deep ice-sheet coring (DISC): 2. Mechanical design. Ann. Glaciol., 47, 3540 (doi: 10.3189/172756407786857640)
Mortensen NB, Sendelbach PJ and Shturmakov AJ (2007) A new 122 mm electromechanical drill for deep ice-sheet coring (DISC): 3. Control, electrical and electronics design. Ann. Glaciol., 47, 4150 (doi: 10.3189/172756407786857668)
Mortensen NB, Johnson JA and Shturmakov AJ (2014a) Precision cable winch level wind for deep ice-coring systems. Ann. Glaciol., 55(68) (doi: 10.3189/2014AoG68A013) (see paper in this issue)
Mortensen NB, Goetz JJ, Gibson CJ, Johnson JA and Shturmakov AJ (2014b) Replicate ice-coring system architecture: electrical, electronic and software design. Ann. Glaciol., 55(68) (doi: 10.3189/2014AoG68A014) (see paper in this issue)
Shturmakov AJ and Sendelbach PJ (2007) A new 122 mm electromechanical drill for deep ice-sheet coring (DISC): 4. Drill cable. Ann. Glaciol., 47, 5153
Shturmakov AJ, Lebar DA, Mason WP and Bentley CR (2007) A new 122 mm electromechanical drill for deep ice-sheet coring (DISC): 1 . Design concepts. Ann. Glaciol., 47, 2834 (doi: 10.3189/172756407786857811)
Slawny KR and 7 others (2014) Production drilling at WAIS Divide. Ann. Glaciol., 55(68) (doi: 10.3189/2014AoG68A018) (see paper in this issue)
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Annals of Glaciology
  • ISSN: 0260-3055
  • EISSN: 1727-5644
  • URL: /core/journals/annals-of-glaciology
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