The Winkie Drill is an agile commercially-available rock coring unit designed by Minex and purchased by IDDO for subglacial rock coring. IDDO has adapted the base unit to allow for ice augering and ice coring applications in the polar regions. This drill is one of two rock coring drills in the IDDO inventory (see also ASIG Drill). Using standard AW34 drill rod, the system has a depth capability of 120 meters (e.g., it can auger through 120 meters of ice) and can collect short (10s of cm) bedrock cores. The drill uses traditional forced fluid circulation during coring, as is common in rock coring applications. All components of the Winkie Drill system can fit in a Twin Otter or similar-sized aircraft.
The Winkie Drill was deployed to the Ohio Range region of Antarctica in November 2016 (PI Sujoy Mukhopadhyay) for its first funded field project. The drill performed well, drilling 8 holes between 12-54 meters depth. Rock cores between 28-67 cm in length were collected in five of the holes and a semi-cosolidated sediment core was retrieved from one hole.
|Type||Rock Coring; Ice Coring/Augering|
|Number in Inventory||1|
|Max. Depth Possible in Ice||120 meters using standard AW34 drill rod|
|Max. Depth Possible in Rock||120 meters (designed as a rock drill; should be possible with enough time and fluid)|
|Hole Diameter (augering)||50 - 52 mm|
|Rock Core Diameter||32.5 mm|
|Ice Core Diameter||33.4 mm|
|Core Length||1.5 m; 3 m|
|IDDO Driller Required?||Yes, 2 drillers|
|Drill Fluid Required?||Yes|
|Power Requirements/Source||Generator 2.5 kW|
|Estimated Drilling Time||Augering Ice: 0.4-0.5 m/min rate of penetration
Coring Ice: ?
Rock: 0.02-0.05 m/min rate of penetration
Above values do not include rod tripping time (can be significant in deep holes)
|Time to move (breakdown and setup)||3 hours (set up time)|
|Light Aircraft Transportable?||Yes|
|Shipping Weight||2,200 lbs|