CORE DRILLING TOOLS
Wireline core barrels combine inner and outer systems in NQ, HQ and PQ series, with 1.5 m and 3 m arrangements. Order complete barrels or replacement tubes, head assemblies and accessories; bits and reaming shells are selected separately in the matching size.
Tube systems, assemblies & accessories
A wireline double-tube barrel combines inner and outer systems. The outer tube carries the reaming shell and bit; the inner tube receives the core and is located by its head assembly. At the end of a run, the inner assembly and core are recovered by wireline through the rods, while the outer system remains downhole with the drill string.
Available in NQ, HQ and PQ series, with 1.5 m or 3 m core barrel arrangements. Match rods, inner tubes and outer tubes by model and length. For replacement parts, specify the model, length and quantity; bits and reaming shells can be selected alongside a complete barrel.
Core barrel assemblies exclude the bit and reaming shell, which can be selected separately in the matching size. Inner tubes, outer tubes, head assemblies and accessories can also be ordered separately. The quotation itemizes the model, length, quantity and supply scope.
| Model | 1.5 m assembly kg | 3 m assembly kg |
|---|---|---|
| NQ | 38.94 | 60.44 |
| HQ | 63.98 | 94.34 |
| PQ | 83.34 | 126.65 |
Assembly mass; bit and reaming shell are separate items and are not included.
| Head assembly series | NQ / HQ / PQ |
|---|---|
| Tube systems | Inner & outer tubes |
| Matching rod lengths | 1.5 m / 3 m |
| Accessories | Core lifters & drilling accessories |
Values are for equipment selection; supplied configurations follow the quotation and equipment documents.
The assembly excludes the bit and reaming shell. They can be selected separately in the matching size and itemized in the quotation.
Yes. The separate tube product page has enquiry options for inner and outer tubes, with the required class, length and quantity.
Core barrel tubes · sold separately
NQ / HQ / PQ · 1.5 m / 3 m · separate supply
Drill rods for core drilling
NQ / HQ / PQ · 1.5 m / 3 m