Small Hot Water Drill
The IDDO Small Hot Water Drill (SHWD) uses hot water to create shallow holes in the ice. It is non-coring. Primary use is for shot holes for seismic work, but they have also been used for access holes through a thin ice shelf. These drills are transportable by light aircraft and helicopter. These systems are typically operated by investigators without assistance from IDDO drillers, though IDDO encourages science teams to visit Madison for drill system training prior to deployment.
IDDO has two SHWDs in inventory. Feedback on system performance is continuously collected from primary users of the system. In recent years, IDDO has implemented substantial modifications to the drills, with assistance from UW-Madison Physical Sciences Lab (PSL) personnel. IDDO refurbished the heaters, evaluated the hose, specified and procured a new nozzle kit and tested and verified all modifications prior to shipping the system to Antarctica in fall 2015. Additional modifications and upgrades were made to the drills in late PY 2016, and IDDO built up a fully-operational second unit. One of the two systems maintains a 30-meter depth capability and the second system has depth capability to 60 meters. All identified maintenance and upgrades were completed in 2016, including implementation of lightweight Siglin sleds and system covers for protection from the elements.
|Name||Small Hot Water Drill|
|Number in Inventory||2|
|Max. Practical Depth||Reliable and efficient to a depth of 25-30 m|
|Hole Diameter||Variable (10 cm nominal)|
|Core Diameter||[not applicable]|
|IDDO Driller Required?||Depends on PI's experience (2 people required for drill operation)|
|Drill Fluid Required?||No|
|Power requirements/source||120v, 5kW generator|
|Estimated Drilling Time||30 m - 15 minutes|
|Time to move (breakdown and setup)||20 minutes|
|Light Aircraft Transportable?||Yes|
|Shipping Weight||3500 lbs; Assembled for operation w/o fuel: 2200 lbs|