Core barrel WL Wire line
- Core barrel designed for wire line core drilling in soft, medium and hard formations.
- Core is recovered by retrieving the inner tube/head trough the drill string; the rods remain in the hole until bit replacement.
- Reduce time operation of conventional drilling; eliminate pulling and lowering rods each time core barrel is full.
- Standard drilling diameters are supplied from N size to P size.
- Core barrel type: NWL, HWL, and PWL.
 Assembly |
 Components |
NWL HWL PWL WIRE LINE CORE BARREL TYPE |
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| Description | Components |
| Core barrel complete 1,5 m /5 ft | 1.- Head assembly (with landing indicator) |
| Core barrel complete 3,0 m /10 ft | 2.-Inner tube 1,5 m/5 ft 3,0 m/10 ft |
| 3.-Stop ring | |
| 4.- Core lifter | |
| 5.- Core lifter case | |
| 6.- Locking coupling | |
| 7.- Adaptor coupling | |
| 8.- Landing ring | |
| 9.- Outer tube 1,5 m/5ft 3,0 m/10 ft | |
| 10.- Inner tube stabilizer | |
Head assembly
Assembly
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Components
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NWL HWL PWL WIRE LINE HEAD ASSEMBLY COMPONENTS |
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| 1.- Spearhead point | 10.- Landing indicator | |
| 2.- Compresion spring | 11.- Spindle assy | |
| 3.- Detent plunger | 12.- Shut-off valves | |
| 4.- Spearhead base | 13.- Ball bearings | |
| 5.- Latch retracting case | 14.- Spindle bearing | |
| 6.- Latches | 15.- Compression spring | |
| 7.- Upper latch body | 16.- Inner tube cap assy | |
| 8.- Landing shoulder | 17.- Steel ball | |
| 9.- Lower latch body | 18.- Check valve body | |