![[[smallImgAlt]]](/uploads/202237866/double-tube-core-barrel49101807654.jpg)
Product Description
Double tube core barrel assembly is composed of an outer tube assembly and an inner tube assembly, and circulation water passes through the gap between the tubes and is not touched by the collected cores. With features of high efficiency, low drilling costs, simple structure, reliable performance, convenient maintenance and good durability.
Main Features
* Faster penetration compared to thicker walled core barrels.
* The core barrel is suitable for all kinds of rock formations (whether soft or hard).
* Double tube core barrels provide higher core recovery and less core erosion.
* In addition to water and polymer, can be washed with mud and air.
* This cost-effective core barrel is highly productive in shallow formations.
Technical Parameters
Model | Drill Bit (mm) | Reamer (mm) | Outer Tube (mm) | Inner Tube (mm) | Unit weight | |||
Inner Diameter | Outer Diameter | Outer Diameter | Outer Diameter | Inner Diameter | Outer Diameter | Inner Diameter | Kg/set | |
BQ | 59.5 | 36.5 | 60 | 57.2 | 46 | 42.9 | 38.1 | 45 |
NQ | 74.6 | 47.6 | 75.8 | 73 | 60.3 | 55.6 | 50 | 65 |
HQ | 95.6 | 63.5 | 96 | 92.1 | 77.8 | 73 | 66.7 | 105 |
PQ | 122 | 85 | 122.6 | 118 | 103 | 95.3 | 88.9 | 150 |
BC Double Tube Core Barrel Assembly (BQ NQ HQ)
| Code | Product Name | Qty |
BC-01 | Spearhead Point | 1 |
BC-02 | Detent Plunger | 1 |
BC-03 | Compression Spring | 1 |
BC-04 | Spring Pin 10*28 | 1 |
BC-05 | Spearhead Base | 1 |
BC-06 | Latch Retracting Case | 1 |
BC-07 | Spring Pin 10*40 | 2 |
BC-08 | Bolt 3/8"-16UNC | 1 |
BC-09 | Washer | 1 |
BC-10 | Compression Spring | 1 |
BC-11 | Upper Latch Body | 1 |
BC-12 | Link | 2 |
BC-13 | Latch | 2 |
BC-14 | Spring Pin 10*32 | 1 |
BC-15 | Ball φ22 | 1 |
BC-16 | Indicator Bushing | 1 |
BC-17 | Landing Shoulder | 1 |
BC-18 | Lower Latch Body | 1 |
BC-19 | Washer Nord-Lock 7/8" | 1 |
BC-20 | Hex Nut 7/8"-9UNC | 1 |
BC-21 | Spindle | 1 |
BC-22 | Shut-off Valve Hard | 2 |
BC-23 | Valve Adjusting Washer | 2 |
BC-24 | Thrust Bearing | 1 |
BC-25 | Spindle Bearing | 1 |
BC-26 | Hanger Bearing | 1 |
BC-27 | Compression Spring | 1 |
BC-28 | Self-locking Nut 5/8"-11UNC | 1 |
BC-29 | Inner Tube Cap | 1 |
BC-30 | Grease Fitting M6 | 1 |
BC-31 | Ball φ19 | 1 |
BC-32 | Check Valve Body | 1 |
BC-33 | Inner Tube A 1.5m/pc | 1 |
Inner Tube B 3m/pc | ||
BC-34 | Stop Ring | 1 |
BC-35 | Core Lifter | 1 |
BC-36 | Core lifter Case | 1 |
BC-37 | Locking Coupling | 1 |
BC-38 | Adapter Coupling | 1 |
BC-39 | Landing Ring | 1 |
BC-40 | Outer Tube A 1.5m/pc | 1 |
Outer Tube B 3m/pc | ||
BC-41 | Inner Tube Stabilizer | 1 |
BC-42 | Reaming Shell | 1 |
BC-43 | Diamond Bit | 1 |
BCU Double Tube Core Barrel Assembly (BQU NQU HQU)
| Code | Product Name | Qty |
BCU-01 | Spearhead Point | 1 |
BCU-02 | Detent Plunger | 1 |
BCU-03 | Compression Spring | 1 |
BCU-04 | Spring Pin 10*28 | 1 |
BCU-05 | Spearhead Base | 1 |
BCU-06 | Compression Spring | 1 |
BCU-07 | Spring Pin 10*40 | 2 |
BCU-08 | Bolt 3/8"-16UNC | 1 |
BCU-09 | Washer | 1 |
BCU-10 | Latch Compression Spring | 1 |
BCU-11 | Upper Latch Body | 1 |
BCU-12 | Spring | 1 |
BCU-13 | Latch | 2 |
BCU-14 | Spring Pin 10*32 | 1 |
BCU-15 | Seal Seat | 1 |
BCU-16 | Pump-ln Lip Seel | 2 |
BCU-17 | Latch Body Coupler | 1 |
BCU-18 | Ball φ22 | 1 |
BCU-19 | Indicator Bushing | 1 |
BCU-20 | Landing Shoulder | 1 |
BCU-21 | Lower Latch Body | 1 |
BCU-22 | Washer Nord-lock 7/8" | 1 |
BCU-23 | Hex Nut 7/8"-9UNC | 1 |
BCU-24 | Spindle | 1 |
BCU-25 | Shut-off Valve Hard | 2 |
BCU-26 | Valve Adjusting Washer | 2 |
BCU-27 | Thrust Bearing | 1 |
BCU-28 | Spindle Bearing | 1 |
BCU-29 | Hanger Bearing | 1 |
BCU-30 | Compression Spring | 1 |
BCU-31 | Self-locking Nut 5/8"-11UNC | 1 |
BCU-32 | Inner Tube Cap | 1 |
BCU-33 | Grease Fitting M6 | 1 |
BCU-34 | Ball φ19 | 1 |
BCU-35 | Check Valve Body | 1 |
BCU-36 | Inner Tube A 1.5m/pc | 1 |
Inner Tube B 3m/pc | ||
BCU-37 | Stop Ring | 1 |
BCU-38 | Core lifter | 1 |
BCU-39 | Core lifter case | 1 |
BCU-40 | Locking Coupling | 1 |
BCU-41 | Adapter Coupling | 1 |
BCU-42 | Landing Ring | 1 |
BCU-43 | Outer Tube A 1.5m/pc | 1 |
Outer Tube B 3m/pc | ||
BCU-44 | Inner Tube Stabilizer | 1 |
BCU-45 | Reaming Shell | 1 |
BCU-46 | Diamond Bit | 1 |
PC Double Tube Core Barrel Assembly (PQ)
| Code | Product Name | Qty |
PC-01 | Spearhead Point | 1 |
PC-02 | Detent Plunger | 1 |
PC-03 | Compression Spring | 1 |
PC-04 | Spring Pin 10*28 | 1 |
PC-05 | Spearhead Base | 1 |
PC-06 | Latch Retracting Case | 1 |
PC-07 | Spring Pin 12*70 | 2 |
PC-08 | Screw 5/16"-18UNC | 2 |
PC-09 | Nylok Bolt 3/8"-16UNC | 1 |
PC-10 | Washer | 1 |
PC-11 | Compression Spring | 1 |
PC-12 | Upper Latch Body | 1 |
PC-13 | Link | 2 |
PC-14 | Latch | 2 |
PC-15 | Spring Pin 12*55 | 1 |
PC-16 | Landing Shoulder | 1 |
PC-17 | Positiong Bolt | 1 |
PC-18 | Base Support | 1 |
PC-19 | Compression Spring | 1 |
PC-20 | Valve Piston | 1 |
PC-21 | Indicator Bushing | 1 |
PC-22 | Lower Latch Body | 1 |
PC-23 | Washer Nord-Lock 1 1/4" | 1 |
PC-24 | Hex Nut 1 1/4"-8UNC | 1 |
PC-25 | Hollow Spindle | 1 |
PC-26 | Valve Adjusting Washer | 2 |
PC-27 | Shut-off Valve Hard | 2 |
PC-28 | Tapered Shut-off Washer | 1 |
PC-29 | Thrust Bearing | 2 |
PC-30 | Spindle Bearing | 1 |
PC-31 | Grease Fitting M6 | 1 |
PC-32 | Hanger Bearing | 1 |
PC-33 | Compression Spring | 1 |
PC-34 | Washer Nord-Lock 1 1/4" | 1 |
PC-35 | Self-locking Nut 1 1/4"-8UNC | 1 |
PC-36 | Copper Valve Bushing | 1 |
PC-37 | Ball φ22 | 1 |
PC-38 | Spring Pin 5*45 | 1 |
PC-39 | Check Valve Body | 1 |
PC-40 | Inner Tube Cap | 1 |
PC-41 | Inner Tube A 1.5m/pc | 1 |
Inner Tube B 3m/pc | ||
PC-42 | Stop Ring | 1 |
PC-43 | Core Lifter | 1 |
PC-44 | Core Lifter Case | 1 |
PC-45 | Locking Coupling | 1 |
PC-46 | Adapter Coupling | 1 |
PC-47 | Landing Ring | 1 |
PC-48 | Outer Tube A 1.5m/pc | 1 |
Outer Tube B 3m/pc | ||
PC-49 | Reaming Shell | 1 |
PC-50 | Inner Tube Stabilizer | 1 |
PC-51 | Diamond Bit | 1 |
PCU Double Tube Core Barrel Assembly (PQU)
| Code | Product Name | Qty |
PCU-01 | Spearhead Point | 1 |
PCU-02 | Detent Plunger | 1 |
PCU-03 | Compression Spring | 1 |
PCU-04 | Spring Pin 10*28 | 1 |
PCU-05 | Spearhead Base | 1 |
PCU-06 | Latch Retracting Case | 1 |
PCU-07 | Spring Pin 12*70 | 2 |
PCU-08 | Bolt 3/8"-16UNC | 1 |
PCU-9 | Washer | 1 |
PCU-10 | Compression Spring | 1 |
PCU-11 | Upper Latch Body | 1 |
PCU-12 | Spring | 1 |
PCU-13 | Latch | 2 |
PCU-14 | Spring Pin 1/2"*55 | 1 |
PCU-15 | Seal Seat | 1 |
PCU-16 | Pump-ln Lip Seel | 2 |
PCU-17 | Latch Body Coupler | 1 |
PCU-18 | Ball φ22 | 1 |
PCU-19 | Indicator Bushing | 1 |
PCU-20 | Landing Shoulder | 1 |
PCU-21 | Lower Latch Body | 1 |
PCU-22 | Washer φ32 | 1 |
PCU-23 | Hex Nut 1 1/4"-8UNC | 1 |
PCU-24 | Spindle | 1 |
PCU-25 | Valve Adjusting Washer | 2 |
PCU-26 | Shut-off Valve Hard | 2 |
PCU-27 | Tapered Shut-off Washer | 1 |
PCU-28 | Thrust Bearing | 2 |
PCU-29 | Grease Fitting M6 | 1 |
PCU-30 | Spindle Bearing | 1 |
PCU-31 | Hanger Bearing | 1 |
PCU-32 | Compression Spring | 1 |
PCU-33 | Washer Nord-lock φ32 | 1 |
PCU-34 | Self-locking Nut 1 1/4"-8UNC | 1 |
PCU-35 | Ball φ22 | 1 |
PCU-36 | Spring Pin 5*45 | 1 |
PCU-37 | Check Valve Body | 1 |
PCU-38 | Inner Tube Cap | 1 |
PCU-39 | Inner Tube A 1.5m/pc | 1 |
Inner Tube B 3m/pc | ||
PCU-40 | Stop Ring | 1 |
PCU-41 | Core Lifter | 1 |
PCU-42 | Core Lifter Case | 1 |
PCU-43 | Locking Coupling | 1 |
PCU-44 | Adapter Coupling | 1 |
PCU-45 | Landing Ring | 1 |
PCU-46 | Outer Tube A 1.5m/pc | 1 |
Outer Tube B 3m/pc | ||
PCU-47 | Reaming Shell | 1 |
PCU-48 | Inner Tube Stabilizer | 1 |
PCU-49 | Diamond Bit | 1 |
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