Wireline core barrels eliminate the major time consuming operation of using standard double tube core barrels - pulling, stacking and lowering drill rods each time the core barrel is full.
Using a wireline system, core is recovered quickly by retrieving the core-laden inner tube directly through the drill string. The rods remain in the hole until the bit needs to be replaced. This has major cost advantages when drilling deep holes for mineral exploration.
These core barrels are available in hole sizes A, B, N, H and P. All parts are fully interchangeable with Longyear "Q" series and Boyles "O" series wireline core barrels.
Features of the W/L wireline system include:
| W/L Wireline Core Barrel | ||
| Size Designation |
Hole Diameter (mm) |
Core Diameter (mm) |
| A W/L | 48.0 | 27.0 |
| B W/L | 59.9 | 36.4 |
| N W/L | 75.7 | 47.6 |
| H W/L | 96.1 | 63.5 |
| P W/L | 122.6 | 85.0 |
| Core Bit and Diamond Reaming Shell to be purchased separately. | ||