Wireline Triple Tube Core Barrels
Wireline Triple Tube Core Barrels
Wireline core barrels are used when coring to greater depths, mainly because they eliminate the need to couple and uncouple the rod string each time the core is retrieved. An overshot device is dropped on a cable and directly couples onto the inner tube assembly, allowing fast retrieval of the core after each core run.
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.
An alternative method of converting the double tube to triple tube is by incorporating a clear, semi-rigid PVC coreliner inside the inner tube instead of the split steel tube.
Available in DCDMA sizes B, N, H. and P.
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 even in highly broken formations.
| Technical Data | ||||
| Specification | Core Barrel Type | |||
| B W/L3 | N W/L3 | H W/L3 | P W/L3 | |
| 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 | 43.5 | 64.2 |
| Hole Area (cm2) | 28.3 | 45 | 72.8 | 118.5 |
| Cutting Area as % of Hole Area | 69% | 64% | 60% | 54% |
| Core Area (cm2) | 8.7 | 16 | 29.3 | 54.3 |
| Recommended Drill Rod | BWL | NWL | HWL | PWL |
| Recommended Casing | BW | NW | HW | PW |
Main Parts of W/L3 Core Barrel Assembly
Complete core barrel consists of:
1. Core Barrel Head
2. Pump-out Adaptor 3/4" NPT
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
Core Bit and Reaming Shell are not supplied as part of the core barrel assembly, but must be chosen correctly to match the particular application and rock formation. Please refer to our Core Bits page for further details.
Keywords:
Core Barrels
Craelius Core Barrel
Longyear Core Barrel
Boart Longyear Core Barrel
Secoroc Core Barrel
Atlas Copco Core Barrel
Wireline Core Barrel
AQTK Core Barrel
BQ Core Barrel
NQ Core Barrel
HQ Core Barrel
PQ Core Barrel
NMLC Core Barrel
HMLC Core Barrel
NWG Core Barrel
HWG Core Barrel
AQWL Core Barrel
BQWL Core Barrel
NQWL Core Barrel
HQWL Core Barrel
PQWL Core Barrel
SQWL Core Barrel
Double Tube Core Barrel
Metric Core Barrel
T2-66 Core Barrel
T2-76 Core Barrel
T2-86 Core Barrel
T2-101 Core Barrel
T6-76 Core Barrel
T6-86 Core Barrel
T6-101 Core Barrel
T6-116 Core Barrel
T6-146 Core Barrel
WT SERIES CORE BARRELS:
BWT SERIES CORE BARRELS
NWT SERIES CORE BARRELS
HWT SERIES CORE BARRELS
PWT SERIES CORE BARRELS
WM SERIES CORE BARRELS:
AXM/AWM SERIES CORE BARRELS
AXM SERIES CORE BARRELS
AWM SERIES CORE BARRELS
BWM SERIES CORE BARRELS
NWM SERIES CORE BARRELS
HWM SERIES CORE BARRELS
WG SERIES CORE BARRELS:
BWG SERIES CORE BARRELS
NWG SERIES CORE BARRELS
HWG SERIES CORE BARRELS
WF SERIES CORE BARRELS:
NWF SERIES CORE BARRELS
HWF SERIES CORE BARRELS
BWL Core Barrel
NWL Core Barrel
HWL Core Barrel
PWL Core Barrel
core barrels for mining exlopration and geological drilling
Triefus Triple Tube Core barrels
CONVENTIONAL DOUBLE TUBE CORE BARRELS
TT Series Core Barrels
T2 Series Core Barrels
T6 Series Core Barrels
T6 Series Core Barrels
WF / WG Series Core Barrels
CONVENTIONAL TRIPLE TUBE CORE BARRELS
WIRELINE DOUBLE TUBE CORE BARRELS “W/L”
WIRELINE TRIPLE TUBE CORE BARRELS “W/L3”
For more information, please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.com ; http://www.roschen.net
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
