Thin Wall BTW NTW HTW wireline double tube core barrel assembly head assembly Conventional Drilling
Wire-line drill tools can lift drill core from dril rods without picking up bits .All the tools include principal parts of the drill tools . overshot assembly ,drill rods , holding dog, circle wrench and etc. Their advantage are higher penetration , higher core recovery ratio ,longer bit life and lower lab intensity ,and the advantages get more clear with the increasing of hole depth .
No. | Std. | Item | Bit Std. | Reamer Std. | Bit OD(mm) | Bit ID(mm) |
TW Series | ||||||
1 | ATW | 1.5M double tube core barrel | ATW | ATW | 47.6 | 30.1 |
2 | BTW | 1.5M double tube core barrel | BTW | BTW | 59.5 | 42.0 |
3 | NTW | 1.5M double tube core barrel | NTW | NTW | 75.3 | 56.1 |