HWL NWL PWL Core barrel
Core barrel HWL/ NWL/ PWL
Key spec of Core barrel HWL/ NWL/ PWL
This Core barrel system is particularly suitable for deep boreholes.
The working system is noticeably different from conventional methods, but it is still a double tube drilling system.
The fundamental difference is that the inner tube is lowered to the working position inside the drill string and is raised to the surface once it is full, by means of a fast acting cable. As the depth of the drill advances, drill rods are added without removing the core barrel.
Drilling Parameters | ||
Nominal diameter | Hole diameter(mm) | Core diameter(mm) |
BWL | 6000 | 3640 |
NWL/ NWL-3 | 7570 | 4760/4500 |
HWL/ HWL-3 | 9600 | 6350/6110 |
PWL/ PWL-3 | 12260 | 8500/8300 |
You just need to remove the drill string to change the core bit. Thus there is a significant increase in the useful time of drilling. Also conversion kits and spare parts.
The core barrels are supplied without bit and without reamning, since depending on the formation to be drilled and the selected core barrel, the use of tungsten carbide, carbotec, diamond, tricone or threewing, will be recommended.
Roschen manufacture differenct types of the core barrels with high quality.
TT-46 core barrel TT56 core barrel
T2-56 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 double/triple tube core barrel T6-116 double/triple tube core barrel T6-131 double/triple tube core barrel, T6-131 core barrel T6S core barrel etc.
NMLC double/triple tube core barrel, HMLC double/triple tube core barrel
HWF double/triple tube core barrel, PWF core barrel
NWG single/double tube core barrel, HWG single/double tube core barrel
NX single/double tube core barrel, HX single/double tube core barrel
LTK48 core barrel
M101 core barrel
412 F core barrel
Chinese Standard: Wireline 56, wireline 59, wireline 75, wireline 91...
Wire line core barrel
double tube core barrel
single tube core barrel
triple tube core barrel
Diamond core drill bits and diamond non-core drill bits Specifications | |
A-Gauge Core Bits: | A, A-RSG, AWG(AX), AWM, AWT, LTK48 |
B-Gauge Core Bits: | B, B-RSG, B-2.400, B3, BWG(BX), BWM, BWT, LTK60, TBW |
N-Gauge Core Bits: | N, NMLC, NWG(NX), NWM, NWT, TNW |
H-Gauge Core Bits: | N, HMLC, HWF-Long, HWF-Short, HWG(HX), HWT |
P- Gauge Core Bits: | P, P3, PWF-Long, PWF-Short |
S- Gauge Core Bits: | SWF-Long, SWF-Short |
U- Gauge Core Bits: | UWF-Long, UWF-Short |
Z- Gauge Core Bits: | ZWF-Long, ZWF-Short |
T, TT, T2 &TB Series Metric Core Bits: | T36, TT46, T2-46, TB56, TT56, T2-56, T2-66, T2-76,T2-76 coreline, T2-86, T2-86 coreline, T2-101, T2-101 coreline |
T6 Series Metric Core Bits: | T6-76, T6-86, T6-101, T6-116, T6-131, T6-146 |
T6S Series Metric Core Bits: | T6S-76, T6S-86, T6S-101, T6S-116, T6S-131, T6S-146 |
Q Series: | AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT |
T2 Series: | T2 46, T2 56, T2 66, T2 76, T2 86, T2 101 |
T6 Series: | T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, T6S 101 |
T Series: | T36, T46, T56, T66, T76, T86 |
Z Series: | Z46, Z56, Z66, Z76, Z86, Z101, Z116, Z131, Z146 |
B Series: | B36, B46, B56, B66, B76, B86, B101, B116, B131, B146 |
WF Series: | HWF, PWF, SWF, UWF, ZWF |
WT Series: | RWT, EWT, AWT, BWT, NWT, HWT |
WM Series: | EWM, AWM, BWM, NWM |
WG Series: | EWG, AWG, BWG, NWG, HWG |
Others: | NMLC, HMLC, LTK48, LTK60, BGM, NGM, ADBG, TBW, TNW, ATW, BTW, NTW, NXD3, AX, NX, NXC, AXT, T6H, 4 9/16, NWD4, 412F, SK6L146, TT46, TB56, TS116, CHD101. |
Customized standard | CDDA, DCAMA, Crealius, and ISO sizes . |
