IDP 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.

USGS Deep Logging Winch

In PY 2014, the United States Geological Survey (USGS) gifted its 4 km logging winch to IDP for continued use by the polar logging community. The winch has been used extensively for logging boreholes in both Greenland and Antarctica and was most recently used during the 2014-2015 Antarctic season for logging the WDC06A borehole at WAIS Divide that was drilled by the DISC Drill. Gary Clow, the former predominant operator of the winch, has trained the IDP staff on the set-up, operation, crating, maintainance and troubleshooting of the winch.

The USGS winch is capable of logging boreholes 4400 meters deep. The cable is a standard four-conductor logging cable headed with a standard 1-inch outer-diameter Gearhart-Owen variant. The winch has a broadband slip-ring connector enabling it to transmit both analog and high speed digital signals from DC to 250 MHz.

View of the inside of the borehole logging tent at WAIS Divide, Antarctica, and the USGS Deep Logging Winch (for logging boreholes up to 4400-meters deep) during the 2014-2015 summer field season. Credit: Don Voigt

IDP driller/winch operator Elizabeth Morton assists with borehole logging operations at WAIS Divide, Antarctica, during the 2011-2012 summer field season. Credit: Kristina Slawny

Equipment Details

Name USGS Deep Logging Winch
Type Logging
Number in Inventory 1
Max. Practical Depth 4400 meters
IDP Driller Required? Yes (usually)
Power requirements/source 208V (Hubbell 231A) and 120V; 10kW generator
Helicopter Transportable? No
Light Aircraft Transportable? No
Trench Required? [not applicable]
Shipping Weight 4,260 lbs
Shipping Cube 135
Comments Weights and dimensions above do not include a generator or fuel

Associated Documents