Description of Down Hole Drilling HDD Drill Rod With Even Composition And High Purity
Each of drill pipe is treated by shot peening. After shot peening treatment, surface of drill pipe and thread gets residual pressure stress. This stress can improve drill pipe anti-fatigue service life. Shot peening treatment on thread can help thread compound adhering to thread. Thread service life is improved.
Non destructive test is performed according to NDT standard Level 2 with combination of eddy and ultrasonic to guarantee material quality without any defect.
Surface of the threads will be cleaned to remove burr adhered after threads are opened.
Afterwards, the tread surface will be phosphated to improve surface conditions.
FOR DITCH WITCHundefinedreg; DRILL RIG/MACHINE
| RIG MODEL | MID BODY O.D.(in) | TOOL JOINT (O.D.) (in) | WALL THICKNESS
(in) | WEIGHT
(lbs) |
| JT520 | 1.125 | 1.750 | 0.179 | 17 |
| JT820, JT920 | 1.660 | 2.000 | 0.240 | 29 |
| JT920L | 1.600 | 2.000 | 0.240 | 39 |
| JT1220 | 1.900 | 2.375 | 0.240 | 56 |
| JT1720, JT1720V | 2.063 | 2.500 | 0.270 | 59 |
| JT2020 | 2.063 | 2.625 | 0.270 | 59 |
| JT2720, JT2720V | 2.375 | 2.750 | 0.280 | 78 |
| JT2720M1 | 2.375 | 3.000 | 0.280 | 85 |
| JT4020 | 2.875 | 3.250 | 0.362 | 175 |
| JT4020M1 | 2.875 | 3.500 | 0.362 | 185 |
| JT7020, JT8020, JT100 | 3.500 | 4.000 | 0.368 | 238 |
All rods are heat treated to a minimum 135,000 lb. yield strength for the ultimate in fatigue resistance.
| Vermeer Machine | Mfg. Method | Tube OD | Tool
Joint OD | Length | Weight
(lbs.) | Connection | Max Torque (ft./lbs.) | Bend Radius
(% Sloper
Per Rod) | Rack |
| D7X11, D9X13 | 1-Pc. Forged | 1.660″ | 1.875″ | 6′ | 26 | Firestick 1 #200 | 1,500 | 6.2% | 33/50 |
| D16X20, D18X22 | 1-Pc. Forged | 1.900″ | 2.125″ | 10′ | 52 | Firestick 1 #250 | 2,000 | 10.2% | 40 |
| D20X22, D24X26, D23x30 | 1-Pc. Forged | 2.0625″ | 2.250″ | 10′ | 57 | Firestick 1 #400 | 2,600 | 9.8% | 40 |
| D24X40, D23x30 | 1-Pc. Forged | 2.375″ | 2.625″ | 10′ | 77 | Firestick 1 #600 | 4,000 | 9.3% | 50 |
| D36X50, D40x55 (#650 x 10′) | 1-Pc. Forged | 2.375″ | 2.750″ | 10′ | 79 | Firestick 1 #650 | 5,000 | 9.3% | 50/52 |
| D36X50 (#650 x 15′) | 1-Pc. Forged | 2.375″ | 2.750″ | 15′ | 113 | Firestick 1 #650 | 5,000 | 13.9% | 40 |
| D36X50, D40x55 (#700×10′) | 1-Pc. Forged | 2.625″ | 3.100″ | 10′ | 117 | Firestick 1 #700 | 5,000 | 6.9% | 45 |
| D36X50, D40x55 (#700×15′) | 1-Pc. Forged | 2.625″ | 3.100″ | 15′ | 165 | Firestick 1 #700 | 5,000 | 10.4% | 35 |
| D50x100, D60x90 | 1-Pc. Forged | 2.875″ | 3.250″ | 15′ | 175 | Firestick 1 #900 | 9,000 | 8.7% | 40 |
| D80X100, D50x100, D60x90 | 1-Pc. Forged | 3.500″ | 3.625″ | 15′ | 220 | Firestick 1 #800 | 10,000 | 7.5% | 12/24 |
| D100X120 | 1-Pc. Forged | 3.500″ | 4.375″ | 20′ | 335 | Firestick 1 #1000 | 15,000 | 10.2% | 9/
|
Product Application
HDD drill pipe is a tool applicable for transferring torque and tension of drillers in the process of directional drilling construction. Due to the fact that it has to bear torsion, tension, bending, friction and vibration in the process of directional construction, the requirements for processing process are very strict.
Heat treatment control:
Heat treatment will greatly improve the material strength and increase the thread wear life of the rods and casings. We conduct either tru-wall or both ends heat treatment to the tube body. After heat treatment, strength, hardness, straightness and concentricity of the treated tubes will be tested in our lab.
Thread opening process:
Accuracy of threads will determine the use effects and life time of drill rod and casings.
CNC latches and form cutter are used in thread opening processing to minimize error made by anthropic factors.
Product Advantages:
strong and ductile steel pipe;
solid quality and considerate service;
cost-effective;
