Equipment

IDDO maintains and operates existing drills and borehole logging winches, and develops new systems with two principal foci:

  1. to provide high quality ice cores, and
  2. to produce boreholes that provide access to the interior and beds of ice sheets and glaciers for such purposes as embedding instruments, collecting gas samples, setting seismic charges, studying subglacial processes, studying subglacial geology, collecting subglacial bedrock core, and borehole logging.
 

Hand Augers

The hand auger is the most basic of the mechanical drills and is driven from the surface by a series of extensions that are added as drilling proceeds into the ice. The drill, like all other coring drills, has to be retrieved each time a core section is recovered. IDDO has in inventory several types of hand augers: a recently developed IDDO (3-inch (76 mm) and 4-inch (101 mm)) system, PICO (3-inch (76 mm) and 4-inch (102 mm)), and SIPRE (3-inch (76 mm) core). The IDDO and PICO augers can be configured to take either one-meter or half-meter long cores, and the SIPRE takes half-meter cores. The maximum depth to which hand augers can be used without power assistance (see Sidewinder) is approximately 20 meters.

Hand augers are typically operated by the investigator without assistance from IDDO drillers. Hand augers for Antarctic users traveling through McMurdo Station are individually packed by IDDO and are then sent to the BFC (Berg Field Center) for distribution to the specified field project; drills for use elsewhere are shipped directly to the individual investigators or to the field sites.

IDDO Auger

The IDDO hand auger system is a small lightweight, portable drill system that is designed to take core from firn, but will also work in many kinds of solid ice. IDDO augers come in two different diameters: 79 mm (3.1-inches) or 101 mm (4.0-inches). Both models can be configured to take ½-meter or 1-meter long cores. The standard IDDO hand auger kit contains everything needed to take core to a depth of 20-meters. Customized kits are provided on request for deeper coring or lighter weight requirements. The IDDO hand auger may be hand or power driven. If power is desired, request the Sidewinder kit in addition.

The IDDO hand auger barrel utilizes a three flight/cutter design and is made of fiberglass composite pipe with metal-reinforced connection points to the coring head and extensions. The coring head contains three planar stainless steel cutters, and three possible options for catching/holding the core: a tapered head, a split ring collet insert, and core dog assemblies. A variety of penetration shoes and core dog springs also come with each hand auger system to allow adjustments for different cutting conditions. The extensions are hollow stem aluminum, which not only makes them lighter but also enables easy delivery of fluid to the bottom of the borehole if needed. Each hand auger system also comes with a gated extension support tool that can be managed with only one driller, and an extension recovery tool for fishing dropped extensions out of the borehole.


IDDO hand auger kit contents. Credit: Josh Goetz

Josh Goetz field tests the IDDO 3-Inch hand auger design at WAIS Divide, Antarctica. Credit: Steffen Bo Hansen


Equipment Details

Name IDDO Hand Auger
Type Ice coring
Number in Inventory eight 3-inch (76mm) augers
three 4-inch (102mm) augers
Max. Practical Depth 20 meters (30-40 meters with Sidewinder)
Hole Diameter 110 mm (4.3-inches) or 132 mm (5.2-inches)
Core Diameter 79 mm (3.1-inches) or 101 mm (4.0-inches)
Core Length 1.0 m
IDDO Driller Required? No
Drill Fluid Required? No
Power requirements/source Hand-powered or Sidewinder
Estimated Drilling Time 5 m - 2 hours
10 m - 4 hours
20 m - 7 hours
Time to move (breakdown and setup) <1 hour
Helicopter Transportable? Yes
Light Aircraft Transportable? Yes
Trench Required? No
Shipping Weight 90 lbs for 20 meter kit
Shipping Cube 6

Associated Documents


PICO Auger

The PICO auger is made of fiberglass composite pipe with aluminum fittings and is consequently much lighter than the SIPRE auger. The cutting head incorporates both a taper and core dogs. The extensions are held together using aluminum pins, which allows for rapid assembly and disassembly, much like the SIPRE auger. The lighter weight of the PICO auger, compared to the SIPRE auger, makes deeper penetration without a lifting device possible.

PICO augers come in two different diameters: 77 mm (3.1-inches) or 98 mm (3.9-inches). Both models can be configured to take either one-meter or half-meter long cores. The maximum depth to which these augers can be used without power assistance is approximately 20 meters. As an option, however, the PICO augers can be used with the 'Sidewinder'. The Sidewinder applies power to the auger to increase the rate of drilling and to make it possible for a single operator to drill to depths difficult for hand coring systems.


The PICO hand auger on McCall Glacier, Alaska. Credit: Matt Nolan

David Silverstone (University of Alaska) collects an ice core with a PICO hand auger. Credit: Matt Nolan


Equipment Details

Name PICO Hand Auger
Type Ice coring
Number in Inventory seven 3-inch (76mm) augers
two 4-inch (102mm) augers
Max. Practical Depth 20 meters (30-40 meters with Sidewinder)
Hole Diameter 116mm (4.6-inches) or 141 mm (5.6-inches)
Core Diameter 77 mm (3.1-inches) or 98 mm (3.9-inches)
Core Length 1.0 m
IDDO Driller Required? No
Drill Fluid Required? No
Power requirements/source Hand-powered or Sidewinder
Shipping Weight 100 lbs for 20 meter kit
Shipping Cube 9

Associated Documents


SIPRE Auger

The SIPRE auger is made from stainless steel and is consequently heavy. However, this weight helps its penetration. Quick-release pins hold the extensions together for rapid assembly and disassembly. A simple taper on the inside of the SIPRE core head uses the wedging effect of chips inside the core barrel to break and hold the core. This is effective in firn and brittle ice, but not in tough ice or wet ice. Narrow and wide kerf versions of the SIPRE auger are available.


A SIPRE hand auger is used on an ice-covered northern U.S. temperate lake. Credit: Robert McKay

Historical image of the SIPRE hand auger. Credit: Byrd Polar Research Center, Ohio State University


Equipment Details

Name SIPRE Hand Auger
Type Ice coring
Number in Inventory 3 narrow kerf kits
6 wide kerf kits
Max. Practical Depth 6 meters
Hole Diameter 120 mm (4.7-inches)
Core Diameter 76 mm (3-inches)
Core Length 0.5 m
IDDO Driller Required? No
Drill Fluid Required? No
Power requirements/source Hand-powered
Estimated Drilling Time 6 m - 2 hours
Time to move (breakdown and setup) 15 minutes
Helicopter Transportable? Yes
Light Aircraft Transportable? Yes
Trench Required? No
Shipping Weight 85 lbs for 6 meter kit
Shipping Cube 6
Comments The SIPRE auger is made from stainless steel and is consequently heavier than the IDDO and PICO augers.

Associated Documents