Active Member
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[China]
Address: Building 3, Rainbow road,No.188 ; Xishui;Hubei province
Contact name:Lucy
Hubei Superdrill Mechnical Equipment Co.,Ltd |
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tricone drilling bits adapters/ API standard drill bit adapters
The tool joint is a tapered nipple with a seal shoulder.Also known as rotating-shoulder joint thread.Its characteristics: the thread only connects, not the sealing performance, the shoulder surface is the only sealing part (the actual operation must be enough torque).
ClassificationBasis |
Type |
ClassificationBasis |
Type |
Hole Size | IF FH RGE |
Thread | pin to box pin to pin box to box |
| thread direction | Right side thread left side thread |
Application | Connection Protection |
| Material | 4145H |
| Model A | 2 3/8''IF(box or pin)-2 7/8''IF(box or pin) |
| Model B | 2 3/8''IF(box or pin)-3 1/2''IF(box or pin) |
| Model C | 2 3/8''IF(box or pin)-4 1/2''IF(box or pin) |
| Model D | 2 3/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model E | 2 7/8''reg(box or pin)-3 1/2''reg(box or pin) |
| Model F | 2 7/8''reg(box or pin)-4 1/2''reg(box or pin) |
| Model G | 3 1/2''IF(box or pin)-4 1/2''reg(box or pin) |
| Model H | 4 1/2''reg(box or pin)-6 5/8''reg(box or pin) |
| Model I | 6 5/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model J | 4''FH(box or pin)-5 1/2'' FH(box or pin) |
General introduction:
Drill pipes that are used in applications such as DTH/ DTHR/ DR
basically comprise of a steel
tube with a pin at one end and a box on the other. The job of the
drill pipe is to transmit rotational torque and thrust from the
drill rig rotary head to down hole drilling tools.
DTH drill tubes are used for connecting DTH hammer and DTH button
bits; they are made from seamless tubes. Tubes play a significant
role in all DTH drilling, regardless of application, rock type,
hole depth or drill rig. The key features of a high quality DTH
tube are durability, accuracy and manageability. According to
different application, different diameters of drill tubes are
needed, basically, smaller DTH hammers need smaller DTH drill
tubes, vice avers. Usually we are offering 50mm, 60mm, 76mm, 89mm,
etc. ALL DTH drill tubes are friction welded, and usually the
threads are standard API connections,like23/8" API REG thread, 3
1/2" API REG thread or API IF thread, etc. According to customers
request, from 1000mm to 5000mm length of tubes are available.
Product features:
According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice avers. Usually we are offering 50mm, 60mm, 76mm, 89mm, etc.
| Size | Nominal mass Lb/ft | Calculated weight type | Wall thickness | |||
| in. | mm | lb/ft | kg/m | in. | mm | |
| 2 3/8 | 60.3 | 6.65 | 6.26 | 9.32 | 0.280 | 7.11 |
| 2 7/8 | 73.0 | 10.4 | 9.72 | 14.48 | 0.362 | 9.19 |
| 3 1/2 | 88.9 | 9.50 | 8.81 | 13.12 | 0.254 | 6.45 |
| 3 1/2 | 88.9 | 13.30 | 12.31 | 18.34 | 0.368 | 9.35 |
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 |
| 3 1/2 | 88.9 | 15.50 | 14.63 | 21.79 | 0.449 | 11.40 |
| 4 | 101.6 | 14.00 | 12.93 | 19.26 | 0.330 | 8.38 |
| 4 1/2 | 114.3 | 13.75 | 12.24 | 18.23 | 0.271 | 6.88 |
| 4 1/2 | 114.3 | 16.60 | 14.98 | 22.31 | 0.337 | 8.56 |
| 4 1/2 | 114.3 | 20.00 | 18.69 | 27.84 | 0.430 | 10.92 |
| 5 | 127.0 | 16.25 | 14.87 | 22.15 | 0.296 | 7.52 |
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 |
| 5 | 127.0 | 19.50 | 17.93 | 26.71 | 0.362 | 9.19 |
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 |
| 5 | 127.0 | 25.60 | 24.03 | 35.79 | 0.500 | 12.70 |
| 5 1/2 | 139.7 | 21.90 | 19.81 | 29.51 | 0.361 | 9.17 |
| 5 1/2 | 139.7 | 24.70 | 22.54 | 33.57 | 0.415 | 10.54 |
