This type of system is regarded as a standard ground sampeling drilling rig. The cutter head is mounted on the outer revolving tube. This technology is most suitable for sampling in less consolidated formations. The method allows the use of drilling fluids, with one of the objectives being to let the cutter head cool down. Among others, AGIVA Int’l distributes the following systems:

• T2-Serie
• T6-Serie
• IDT-Serie
• DT-22, DT-32

AGIVA delivers Dual Tube Core Barrels with 46 – 146 mm core diameter.