China Wireline Core Barrel BWL3 NWL3 HWL3 PWL3 Stainless Steel Triple Tube Core Barrel 1.5m
Stinless steel triple tube split tube
The double tube wireline core barrel is converted to triple tube by incorporating a split steel tube inside the inner tube. In addition, a piston and pump-out adaptor is provided for pumping out the split steel tube when it is full of rock core. The stop ring, core lifter case and core lifter also differ from the standard double tube core barrel, being slightly smaller in diameter in order to accept and retain the slightly smaller core.
Advantages:
1.Faster coring at greater depths
2.Good stability due to constant diameter of the drill string
3.excellent hydraulics
4.Good core recovery
| Specification | Wireline Triple Tube Core Barrels |
| BWL3 | NWL3 | HWL3 | PWL3 |
| Hole Diameter (mm) | 59.9 | 75.7 | 96.3 | 122.8 |
| Core Diameter (mm) | 33.5 | 45.1 | 61.1 | 83.1 |
| Kerf / Crown Thickness (mm) | 13.05 | 15.1 | 17.35 | 19.45 |
| Cutting Area (cm2) | 19.6 | 29.0 | 43.5 | 64.2 |
| Hole Area (cm2) | 28.3 | 45.0 | 72.8 | 118.5 |
| Cutting Area as % of Hole Area | 69% | 64% | 60% | 54% |
| Core Area (cm2) | 8.7 | 16.0 | 29.3 | 54.3 |
| Recommended Drill Rod | BQ | NQ | HQ | PQ |
| Recommended Casing | BW | NW | HW | PW |
A complete wire line triple tube core barrel includes: Head assembly, pump-out adaptor, piston plug, O ring, core ejection piston, split tube, inner tube, stop ring, core lifter, core lifter case, locking coupling, adaptor coupling, landing ring, outer tube, inner tube stabilizer, thread protector.
1. Head Assembly
2. Pump-out Adaptor
3. Piston Plug
4. O Ring
5. Core Ejection Piston
6. Split Inner Tube 1.5m or 3.0m
7. Inner Tube 1.5m or 3.0m
8. Stop Ring
9. Core Lifter
10. Core Lifter Case
11. Locking Coupling
12. Adaptor Coupling
13. Landing Ring
14. Outer Tube 1.5m or 3.0m
15. Inner Tube Stabilizer
16. Thread Protector
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1.5m PWL3 Wireline Core Barrel Stainless Steel Triple Tube Images
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