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.
|Name||Deep Logging Winch|
|Number in Inventory||
Number in Inventory
|Max. Practical Depth||
Max. Practical Depth
|IDP Driller Required?||
IDP Driller Required?
208 V (L21-30) and 125 V (L5-20); 8 kW generator
|Light Aircraft Transportable?||
Light Aircraft Transportable?
Winch crate is 3500 lbs
|Shipping Volume (Cube)||
Winch crate is 86" L x 60" W x 68" H
|U.S. Ice Drilling Program (2019) Deep Logging Winch Operations and Maintenance Manual. 1-11.||2019|
|IDDO (2017) Logging Tool Testing: An Informational Guide - Logging Tool Equipment Testing at IDDO. 1-13.||2017|
|Erin Pettit, Ryan Bay, Gary D Clow, IDPO (2012) Science Requirements for a Deep Logging Winch. 1-4.||2012|
|2017-2018 Antarctic - RAID Minna Bluff Antarctic Field Trial|
|2016-2017 Antarctic - Velvet Ice – Evolution of Fabric and Texture in Ice at WAIS Divide, West Antarctica|
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Weights and dimensions above do not include a generator or fuel