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BAU drill rod,NAU drill rod,HAU drill rod.
AU series drilling rod is the common series in the international geological exploration industry. Taper threaded connection is adopted to facilitate connection and prevent stuck, and thread surface is hardened to greatly prolong service life of the thread.
Pipe body: Quality alloy steel pipe is adopted and 100% test is conducted for each raw material to ensure uniform concentricity, straightness and heat treatment.
Thread: Taper threaded connection (3 threads per inch) is adopted to facilitate connection and prevent thread stuck. Each thread is under relatively even stress, providing sufficient strength for product application.
Heat treatment: The whole undergoes heat treatment process to improve service life of products. Threads at both ends of the product undergo special process treatment to provide about 140% of material strength. Service life of inner thread improves obviously.
Thread surface hardening: after special process treatment, outer thread surface hardness is up to about 55HRC, which effectively avoids "sticking thread" and reduces abrasion and "stuck" due to engagement of thread;
All rated values and recommendations are based on torque and tension load test of an independent mechanism; depth and load capability decrease with abrasion; actual performance may vary with operation conditions and well drilling methods; with depth increasing, additional torque is added to match with operation torque; the operation torque shall not exceed the theoretical torque.
| Name | Product Code | Description | O.D | I.D | Net weight | Gross weight(kg) | Pitch | Thread length | Product length |
| (mm) | (mm) | (kg) | (mm) | (mm) | (mm) | ||||
| BAU-5FT | 5FT | ￠55.6 | ￠46.2 | 9.55 | 8.47 | 44.5 | 1524 | ||
| BAU-1.5M | 20100304 | 1.5M | ￠55.6 | ￠46.2 | 9.4 | 8.47 | 44.5 | 1500 | |
| BAU-10FT | 10FT | ￠55.6 | ￠46.2 | 19.1 | 8.47 | 44.5 | 3048 | ||
| BAU-3M | 20100302 | 3M | ￠55.6 | ￠46.2 | 18.8 | 8.47 | 44.5 | 3000 | |
| NAU-5FT | 20100203 | 5 ' | ￠69.9 | ￠60.3 | 11.95 | 12.35 | 8.47 | 44.5 | 1524 |
| NAU-1.5M | 20100204 | 1.5M | ￠69.9 | ￠60.3 | 11.76 | 12.16 | 8.47 | 44.5 | 1500 |
| NAU-10FT | 20100201 | 10 ' | ￠69.9 | ￠60.3 | 23.9 | 24.3 | 8.47 | 44.5 | 3048 |
| NAU-3M | 20100202 | 3M | ￠69.9 | ￠60.3 | 23.5 | 23.9 | 8.47 | 44.5 | 3000 |
| HAU-5FT | 20100103 | 5 ' | ￠88.9 | ￠77.8 | 17.38 | 18.17 | 8.47 | 44.5 | 1524 |
| HAU-1.5M | 20100104 | 1.5M | ￠88.9 | ￠77.8 | 17.1 | 17.9 | 8.47 | 44.5 | 1500 |
| HAU-10FT | 20100101 | 10 ' | ￠88.9 | ￠77.8 | 34.76 | 35.56 | 8.47 | 44.5 | 3048 |
| HAU-3M | 20100102 | 3M | ￠88.9 | ￠77.8 | 34 | 34.8 | 8.47 | 44.5 | 3000 |
| Name | Label color | Package length | Packing width | High packaging | Weight per bundle | Rated depth | Maximum torque rating | Maximum tensile force rating |
| (mm) | (mm) | (mm) | (kg)/19 pieces | |||||
| BAU-5FT | Black | 1620 | 285 | 255 | 181.45 | 1500m(5000ft) | 800Nm(590ft-lb) | 115kN(26000 lbf) |
| BAU-1.5M | Black | 1600 | 285 | 255 | 178.6 | 1500m(5000ft) | 800Nm(590ft-lb) | 115kN(26000 lbf) |
| BAU-10FT | Black | 3150 | 285 | 255 | 362.9 | 1500m(5000ft) | 800Nm(590ft-lb) | 115kN(26000 lbf) |
| BAU-3M | Black | 3100 | 285 | 255 | 357.2 | 1500m(5000ft) | 800Nm(590ft-lb) | 115kN(26000 lbf) |
| NAU-5FT | Black | 1620 | 360 | 320 | 234.6 | 1500m(5000ft) | 1200Nm(900ft-lb) | 147kN(33000 lbf) |
| NAU-1.5M | Black | 1600 | 360 | 320 | 231 | 1500m(5000ft) | 1200Nm(900ft-lb) | 147kN(33000 lbf) |
| NAU-10FT | Black | 3150 | 360 | 320 | 461.7 | 1500m(5000ft) | 1200Nm(900ft-lb) | 147kN(33000 lbf) |
| NAU-3M | Black | 3100 | 360 | 320 | 454.5 | 1500m(5000ft) | 1200Nm(900ft-lb) | 147kN(33000 lbf) |
| HAU-5FT | Black | 1620 | 460 | 410 | 345.2 | 1500m(5000ft) | 2000Nm(1500ft-lb) | 200kN(45000 lbf) |
| HAU-1.5M | Black | 1600 | 460 | 410 | 340 | 1500m(5000ft) | 2000Nm(1500ft-lb) | 200kN(45000 lbf) |
| HAU-10FT | Black | 3150 | 460 | 410 | 675.6 | 1500m(5000ft) | 2000Nm(1500ft-lb) | 200kN(45000 lbf) |
| HAU-3M | Black | 3100 | 460 | 410 | 662 | 1500m(5000ft) | 2000Nm(1500ft-lb) | 200kN(45000 lbf) |
The specifications and sizes can be customized, such as you can also customize 1.0M , 0.6M/2FT in length
| Performance description | BAU | NAU | HAU | ||||||
| Metric | Imperial | Metric | Imperial | Metric | Imperial | ||||
| Rated drilling depth calculated as per joint strength | 1500 m | 4900ft | 1500 m | 4921 ft | 1500 m | 4900 ft | |||
| Maximum rated tension | 110 kN | 25,000 lb | 140 kN | 31,000 lb | 190 kN | 42750 lb | |||
| Maximum rated torque | 750 Nm | 553 ft-lb | 1150 Nm | 862 ft-lb | 1950 Nm | 1462 ft-lb | |||
| For deep hole over 2000m, recommended minimum torque | |||||||||
|
For deep holes greater than 1000m, the minimum torque is recommended |
500 Nm | 412 ft-lb | 950 Nm | 712 ft-lb | 1150 Nm | 862 ft-lb | |||
| Recommended minimum torque | 400 Nm | 296 ft-lb | 590 Nm | 434 ft-lb | 1000 Nm | 742 ft-lb | |||
|
Theoretical blast pressure at API inner thread end (as per API published 5C3) |
39000 kPa | 5656 psi | 31000 kPa | 4498 psi | 29500 kPa | 4292 psi | |||
|
Theoretical blast pressure in API middle part (as per API published 5C3) |
93000 kPa | 13482 psi | 75000 kPa | 10879 psi | 63500 kPa | 9773 psi | |||
|
Theoretical collapse pressure of API middle (as per API published 5C3) |
97000 kPa | 14073 psi | 73600 kPa | 10680 psi | 59500 kPa | 8696 psi | |||
| Judging criteria | |||||||||
| Product outer diameter | 55.9 mm | 2.19 in | 69.9 mm | 2.75 in | 89.0 mm | 3.50 in | |||
| Product inner diameter | 46.1 mm | 1.81 in | 60.3 mm | 2.38 in | 77.8 mm | 3.06 in | |||
| Deviation resistance of rod (rigidity) | 6100 mm | 9.47 in | 13120 mm | 20.37 in | 31580 mm | 48.93 in | |||
| Bar content weight per unit length (water) | 1.65 L/m | 0.126 gal/ft | 2.8 L/m | 0.22 gal/ft | 4.7 L/m | 0.37 gal/ft | |||
| Displacement of rod per unit length (water) | 0.76 L/m | 0.066 gal/ft | 0.85 L/m | 0.037 gal/ft | 1.4 L/m | 0.11 gal/ft | |||
• Drill rods and casing are packaged and sold in "bundles" which offer product protection during shipping and handling.
• Protective card board caps cover box and pin threads sealing in thread lubrication.
• Heavy duty galvanized hexagon bundle end caps protect the drill rod ends.
• Drill rods are coated with rust inhibitor to reduce surface oxidation during shipping. When storing rods for long periods of time, it is recommended you reapply a rust inhibitor to protect the rods from oxidation.
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