Conventional Core Barrels

Technidrill vous propose 4 types de carottiers conventionnels :

Our core barrels correspond to international standards. All core barrel couplings are reinforced with a helicoidal carbide tungstene stabilizer.

 

  • Single tube core barrels of B type
  • Double tube core barrel of T2 type
  • Double tube core barrel of T6 type
  • Double tube core barrel of T6S type, conceived for soil sampling and site investigations in very loose formations.

 

Single tube core barrels of B type

 

This core barrel is designed to obtain cores in homogenous formations.This core barrel does not have an inner tube and its’ utilization is justified when needing a lower per meter drilling cost than as with the double tube core barrel. A simpler core barrel construction and thinner bits allow a lower cost per meter than the double core barrels and the thinner bits result in faster penetration. Much care must taken though as the absence of an inner tube does not allow to obtain complete nor undisturbed samples in heterogeneous formations.

Double tube core barrels T2

 

The T2 core barrel is a double tube core barrel with the inner tube mounted on bearings. The preservation of the core is its’ main advantage. Available in the outer diameters ranging from 46 to 101mm, its’ thin kerf design allows a high penetration rate, a lower diamond cost and a larger core than the series T6.

Double tube core barrel of T6 type

 

The T6 core barrel is also a double tube core barrel with the inner tube mounted on bearings. It has a sturdier design making it more adapted for working in all types of terrains. The diameters range from 76 to 146mm.The core barrels in the diameters ranging from 101 to 146 can be converted to Triplex core barrels by adding another type core lifter and core lifter case, an adequate drill bit and a transparent Plastic liner within the inner tube.

Double tube core barrel of T6S type

 
The T6S core barrel has been conceived for soil sampling and site investigations in very loose formations. The split inner tube combined with face discharge bits gives an undisturbed sample. Before putting it in a core box the split tube allows visual inspection without disturbing the sample.