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.
 

Deep Logging Winch

The Deep Logging Winch is a marine winch that has been modified for polar field use. The winch is capable of logging boreholes 4000 meters deep and can operate at temperatures as low as -45°C. The winch allows full-range speed control down to a complete stop, and can maintain a uniform speed from 1cm/s to 60cm/s. The winch includes a digital depth measuring system with a precision of 1 cm or better, and a cable-tension measuring system. The winch allows for automatic re-spooling of the cable via a level-wind system. 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 ~10 MHz.

A casing-mounted logging tower is available for use with the Deep Logging Winch.


The IDDO deep logging winch for logging boreholes up to 4000-meters deep.


Equipment Details

Name Deep Logging Winch
Type Logging
Number in Inventory 1
Max. Practical Depth 4000 meters
IDDO Driller Required? Yes (usually)
Power requirements/source 208V (L21-30) and 125V (L5-20); 8kW generator
Helicopter Transportable? No
Light Aircraft Transportable? No
Trench Required? [not applicable]
Shipping Weight Winch crate is 3500 lbs
Winch control case is 400 lbs
Shipping Cube Winch crate is 86" L x 60" W x 68" H
Winch control case is 48" L x 48" W x 36" H
Comments Weights and dimensions above do not include a generator or fuel

Associated Documents