PQ3 Surface Set Core Bit For Soft Formation Boart Longyear Wireline
Diamond Core Drilling
PQ3 surface set diamond core bit, suitable for relatively soft and
fractured formations. .
Description:
1. Surface set diamond core bit is primarily recommended for use in
drilling relatively soft, abrasive, unconsolidated formations that
are not effectively drilled by impregnated diamond bit.
2. It is also recommended for use in drilling harder formations
where the available rotational speeds and bit loads are
insufficient to use impregnated diamond bits due to drilling
equipment limitations.
3. In most cases, surface-set diamond bits will provide higher
rates of penetration than in softer formations due largely to the
greater degree of exposure of the individual diamond crystals.
Q Wireline System
The Roschen™ Genuine Q wireline system represents proven technology
in surface and underground applications. Our systems Q, QTK and Q 3
are designed to increase core recovery and productivity in any
drilling condition, delivering greater efficiencies and reliability
to the driller. Whether drilling a standard DCDMA hole or a project
requiring a split tube to retrieve soft, highly fractured
formations – the Genuine Q wireline system is proven to perform.
Q Coring Bits
Roschen™ Genuine Q bits are designed to support and operate with
our Q wireline systems Q, QTK and Q 3. Roschen™ offers the most
accepted bit range in the industry and has dedicated itself to the
continued development of diamond bit technology. Our customers see
it in our recent designs - such as the patented stage and the new
Surface Set XP - they trust us to deliver unmatched productivity
year-after-year.
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:
Email:
roschen@roschen.com ;
roschen@roschen.net
Tel::+86 13764195009 ;
Whatsapp/WeChat: 13764195009
