NQ Wireline Double Tube Core Barrel Assembly For Deep Hole Hard
Rock Coring
Size Available:
B76 core barrel, B86 core barrle, B101 core barrel, B131 core
barrel, B146 core barrel
BQ core barrel NQ core barrel, HQ core barrel PQ core barrrel, NQ3
core barrel, HQ3 core barrel, PQ3 core barrel
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 core barrel T6-116 core
barrel T6-131 core barrel T6-131 core barrel
NMLC core barrel, HMLC core barrel
HWF core barrel, PWF core barrel
NWG core barrel, HWG core barrel
LTK48 core barrel
M101 core barrel
412 F core barrel
Chinese Standard: Wireline 56, wireline 59, wireline 75, wireline
91...
Wireline drilling is the special method of removing the core. When
the driller wants to remove core from a conventional core drill,
the entire core barrel has to be removed from the hole. This is
time-consuming, as each rod has to be removed one at a time. With
wireline drilling, a barrel of core can be removed from the bottom
of the hole without removing the rod string. When the driller wants
to remove the core, an overshot is lowered on the end of a
wireline. The overshot attaches to the back of the core barrel
inner tube and the wireline is pulled back and the inner tube
disengages itself from the barrel.
Welcome to contact us for more information.
Specification:
| Q Series Wireline Double Tube Core Barrels |
| Size | Hole(mm) | Core(mm) | Head Thread |
| BQ | 59.3 | 36.2 | BQ rod box |
| NQ | 75.2 | 47.6 | NQ rod box |
| HQ | 95.6 | 63.5 | HQ rod box |
| PQ | 122 | 85 | PQ rod box |
| Q Series Wireline Triple Tube Core Barrels |
| Size | Hole(mm) | Core(mm) | Head Thread |
| NQ3 | 75.2 | 45 | NQ rod box |
| HQ3 | 95.6 | 61 | HQ rod box |
| PQ3 | 122 | 83 | PQ rod box |
Diamond bits Crown Shape and Applications
Flat : Applicable to drilling different levels of hardness or
abrasive formation,generally for single and dual tube drill bits
Semi-round : Good distribution of the diamond ar bit face, adapt to
a small broken or loose formation,applicable to drilling
medium-hard and hard formation
Ladder : Applicable to drilling medium -hard, broken or interbedded
formations,hole deviation can be prevented
Applicable to drilling medium -hard,have good stability during the
drilling
Bottom jetting : Bottom jetting applicable to drilling sedimentary
or metamorphic formations which containing more power,high coring
recovery rate and avoid excessive washout of core.
