Diamond Core Bits of Turbo Type Wireline double and triple PQ HQ NQ
BQ Exploration Diamond Core Drilling
Specifications:
Turbo Type Wireline double and triple PQ HQ NQ BQ Diamond Core
Bits: hard to very hard formations under conditions
1. Turbo type diamond core bit is best suited to formations that
are hard to very hard under conditions that are solid or at most
slightly broken. The Turbo (Style T) waterway configuration is not
recommended for use in highly fractured formations.
2. Due to the reduced face contact area, core bits with the Turbo
(Style T) configuration will generally cut with less than a core
bit of equivalent size and manufactured with the Regular (Style W)
configuration and will usually do so with an equivalent or higher
rate of penetration. As a result, there is less of a tendency for
the drill hole to deviate due to the application of lower bit
loads.
3. The partial (turbo) waterways also assist in ejecting the fine
cuttings that are created when drilling hard, consolidated,
non-abrasive formations and prevent the build-up of slurry on the
bit face during drilling.
Specifications:
| STANDARD SET DIMENSIONS FOR DIAMOND CORE BITS AND REAMING SHELLS |
| Core Barrel Designation | Core Bit | Core Bit | Reaming Shell |
| Outside Set Diameter | Inside Set Diameter | Set Diameter |
| Maximum | Minimum | Maximum | Minimum | Maximum | Minimum |
| Inches | mm | Inches | mm | Inches | mm | Inches | mm | Inches | mm | Inches | mm |
| EWT(EXT) | 1.475 | 37.46 | 1.465 | 37.21 | 0.91 | 23.11 | 0.9 | 22.86 | 1.49 | 37.85 | 1.48 | 37.59 |
| IEWS | 1.475 | 37.46 | 1.465 | 37.21 | 1 | 25.4 | 0.99 | 25.15 | 1.49 | 37.85 | 1.48 | 37.59 |
| EWG | 1.475 | 37.46 | 1.465 | 37.21 | 0.85 | 21.59 | 0.84 | 21.34 | 1.49 | 37.85 | 1.48 | 37.592 |
| AQ | 1.88 | 47.75 | 1.87 | 47.5 | 1.067 | 27.1 | 1.057 | 26.85 | 1.895 | 48.13 | 1.885 | 47.88 |
| AQIK | 1.88 | 47.75 | 1.87 | 47.5 | 1.206 | 30.63 | 1.196 | 30.38 | 1.895 | 48.13 | 1.885 | 47.88 |
| ATW(ADB-GM) | 1.88 | 47.75 | 1.87 | 47.5 | 1.198 | 30.43 | 1.188 | 30.18 | 1.895 | 48.13 | 1.885 | 47.88 |
| AWT(AXT) | 1.88 | 47.75 | 1.87 | 47.5 | 1.286 | 32.66 | 1.276 | 32.41 | 1.895 | 48.13 | 1.885 | 47.88 |
| ATK34(AW34) | 1.88 | 47.75 | 1.87 | 47.5 | 1.325 | 33.66 | 1.315 | 33.4 | 1.895 | 48.13 | 1.885 | 47.88 |
| AXC(AWC3) | 1.895 | 48.13 | 1.855 | 47.88 | 1.067 | 27.1 | 1.057 | 26.85 | 1.895 | 48.13 | 1.885 | 47.88 |
| JTK48/LTK48 | 1.88 | 47.75 | 1.87 | 47.5 | 1.394 | 35.41 | 1.384 | 35.15 | 1.895 | 48.13 | 1.885 | 47.88 |
| BQ | 2.35 | 59.69 | 2.34 | 59.44 | 1.438 | 36.53 | 1.428 | 36.27 | 2.365 | 60.07 | 2.355 | 59.82 |
| BQ3 | 2.35 | 59.69 | 2.34 | 59.44 | 1.325 | 33.65 | 1.315 | 33.4 | 2.365 | 60.07 | 2.355 | 59.82 |
| BQTK | 2.35 | 59.69 | 2.34 | 59.44 | 1.606 | 40.79 | 1.596 | 40.54 | 2.365 | 60.07 | 2.355 | 59.82 |
| BXB(BWC3) | 2.365 | 60.07 | 2.355 | 59.82 | 1.438 | 36.53 | 1.428 | 36.27 | 2.365 | 60.07 | 2.355 | 59.82 |
| BWG(BX) | 2.35 | 59.69 | 2.34 | 59.44 | 1.659 | 42.14 | 1.649 | 41.88 | 2.365 | 60.07 | 2.355 | 59.82 |
| NQ | 2.97 | 75,44 | 2.96 | 75.18 | 1.88 | 47.75 | 1.87 | 47.5 | 2.985 | 75.82 | 2.975 | 75.57 |
| NQ2 | 2.97 | 75.44 | 2.96 | 75.18 | 2 | 50.8 | 1.99 | 50.65 | 2.985 | 75.82 | 2.975 | 75.57 |
| NQ3/NQTT | 2.97 | 75.44 | 2.96 | 75.18 | 1.78 | 45.21 | 1.77 | 44.96 | 2.985 | 75.82 | 2.975 | 75.57 |
| NWG(NX) | 2.97 | 75.44 | 2.96 | 75.18 | 2.16 | 54.86 | 2.15 | 54.61 | 2.985 | 75.82 | 2.975 | 75.57 |
| NMLC | 2.97 | 75.44 | 2.96 | 75.18 | 2.052 | 52.12 | 2.042 | 51.87 | 2.985 | 75.82 | 2.975 | 75.57 |
| HQ | 3.77 | 95.76 | 3.755 | 95.38 | 2.505 | 63.63 | 2.495 | 63.38 | 3.79 | 96.27 | 3.775 | 95.89 |
| HQ3/HQTT | 3.77 | 95.76 | 3.755 | 95.38 | 2.411 | 61.24 | 2.401 | 60.99 | 3.79 | 96.27 | 3.775 | 95.89 |
| PQ | 4.815 | 122.3 | 4.795 | 121.8 | 3.35 | 85.09 | 3.34 | 84.84 | 4.835 | 120.81 | 4.82 | 122.43 |
| PQ3 | 4.815 | 122.3 | 4.795 | 121.8 | 3.275 | 83.19 | 3.265 | 82.93 | 4.835 | 122.81 | 4.82 | 122.43 |
| TT46/LTK46 | 1.816 | 46.12 | 1.806 | 45.87 | 1.394 | 35.41 | 1.384 | 35.15 | 1.828 | 46.42 | 1.818 | 46.17 |
| T2-46 | 1.816 | 46.12 | 1.806 | 45.87 | 1.253 | 31.82 | 1.243 | 31.56 | 1.828 | 46.42 | 1.818 | 46.17 |
| T2-56 | 2.21 | 56.12 | 2.2 | 55.87 | 1.647 | 41.82 | 1.637 | 41.56 | 2.222 | 56.42 | 2.212 | 56.17 |
| T2-66 | 2.603 | 66.12 | 2.593 | 65.87 | 2.04 | 51.82 | 2.03 | 51.56 | 2.615 | 66.42 | 2.605 | 66.17 |
| T2-76 | 2.997 | 76.12 | 2.987 | 75.87 | 2.434 | 61.82 | 2.424 | 61.56 | 3.009 | 76.42 | 2.999 | 76.17 |
| T2-86 | 3.391 | 86.12 | 3.381 | 85.87 | 2.828 | 71.82 | 2.818 | 71.56 | 3.403 | 86.42 | 3.393 | 86.17 |
| T2-101 | 3.982 | 101.14 | 3.97 | 100.84 | 3.3 | 83.82 | 3.29 | 83.56 | 3.994 | 101.44 | 3.984 | 101.19 |
| T6-86 | 3.391 | 86.12 | 3.381 | 85.87 | 2.643 | 67.13 | 2.633 | 66.88 | 3.406 | 86.51 | 3.394 | 86.21 |
| T6-H | 3.897 | 98.98 | 3.882 | 98.6 | 3.115 | 79.13 | 3.105 | 76.88 | 3.912 | 99.36 | 3.902 | 99.11 |
| T6-101 | 3.982 | 101.14 | 3.97 | 100.84 | 3.115 | 79.13 | 3.105 | 78.88 | 3.996 | 101.51 | 3.984 | 101.21 |
| T6-116 | 4.575 | 116.18 | 4.56 | 115.8 | 3.667 | 93.13 | 3.657 | 92.88 | 4.59 | 116.59 | 4.575 | 116.21 |
| T6-131 | 5.165 | 131.18 | 5.15 | 130.8 | 4.257 | 108.13 | 4.247 | 107.88 | 5.18 | 131.59 | 5.165 | 131.21 |
| T6-146 | 5.755 | 146.18 | 5.74 | 145.8 | 4.847 | 123.13 | 4.837 | 122.88 | 5.772 | 146.61 | 5.757 | 146 |
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Skype: ROSCHEN.TOOL , ROSCHEN_GROUP
WeChat: +86-137 6419 5009 ; +86-135 8585 5390
WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390
Email: roschen@roschen.com ; roschen@roschen.net
Website: http://www.roschen.net ; http://www.roschen.cn
http://www.roschen.com ; http://www.roschengroup.com
