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Core Barrel

B/N/H/P Wire line Triple Tube Core Barrels W/L3 Core Barrel Assembly Drilling tools 


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.


Complete core barrel consists of:

1. Core Barrel Head
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

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.

Wire-line Drilling Tools

SIZE of  Triple Tube Core Barrel:

The structure and work principle of C series wire line drilling tools C series wire line drilling tools included core barrel assembly and overshot assembly:Outer tube assembly contains locking coupling,adapter coupling ,landing ring,reaming shell,outer tube,outer tube and bit. inner tube assembly including spearhead point,detent mechanism,adjusting mechanism, Pensile institutions, tube assembly remove institutions, In position news agency and Core jams news agency etc.
Specification of  Triple Tube Core Barrel:
Chart 1         Triple Tube Core Barrel 

Chart 2
  Head assembly:
The mainly institutions (see chart 1&2) and working principle of  Triple Tube Core Barrel
 as follows:
1,Detent mechanism 
2,Pensile institutions
3,Single movement mechanism
4,Adapter mechanism
5,In position news agency
6,Core jams news agency
B,over shot assembly structure and working principle
The overshot assembly by fishing mechanism, safety release mechanism, Resistance mechanism.
Triple Tube Core Barrel Factory:
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