The double tube core drilling system is ideal for deep drilling, where conventional systems result in long drilling times. While more expensive, the wire-line system compensates with faster drilling speeds. Operators no longer use conventional systems for depths beyond 100 meters, making wire-line the preferred choice for mining research and deep geotechnical surveys, such as tunnel investigations.

This system typically reaches depths of 1,300 to 1,600 meters, with an operational limit of up to 2,500 meters in favorable conditions.

Key components of the wire-line system include:

• Wire-line Core Barrel (BWL, NWL, HWL, PWL)

• Geo-Line 146S Core Barrel

• CSK-146 Core Barrel

• Overshots (BWL, NWL-HWL-PWL, Geo-Line 146S, CSK-146)

• Wire-line Drill Rods

These components ensure efficient and reliable performance for deep exploration projects.