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- Technical Features
- Technical Parameters
Main Technical Features
● Material: It is built with welded hard alloy or inserted with tungsten carbide stud in spiral ribs.
It's characterized by high hardness, good toughness and wear resistance, as well as long service
life.
● Types: Drill String type and Near bit type.
● Usage: Integral blade stabilizer is an important tool in the drilling engineering to control the
well deviation. It can stabilize the drilling tools in the drilling process of oil, gas and geological
exploration. It can increase the bit life, drilling speed and well bore quality
● Standard: API Spec 7-1
| Model | Upper thread API | Down thread API | Overall Length (mm) | O.D. of both ends mm(in) | I.D. (mm) | Working O.D. (mm) | Suitable bit mm (in) | Efficient stable length mm(in) |
|---|---|---|---|---|---|---|---|---|
| LX152HF4—121 | NC38 | NC38 | 1825±5 | 121 (4-3/4) | 50.8 (2) | 152 （6） | 152.4 (6) | 400 (15.74) |
| LX152HF4—121NB | NC38 | 3 1/2REG | 1670±5 | |||||
| LX164HF4—121 | NC38 | NC38 | 1845±5 | 121 (4-3/4) | 50.8 (2) | 164 (6.46) | 165.1 (6 -1/2) | 400 (15.74) |
| LX164HF4—121NB | NC38 | 3 1/2REG | 1690±5 | |||||
| LX215HF4—171 | NC50 | NC50 | 1845±5 | 171 (6-3/4) | 71.4 (2.8) | 215 (8.46) | 215.9 (8 -1/2) | 406 (15.98) |
| LX215HF4—171NB | NC50 | 4 1/2REG | 1695±5 | |||||
| LX240HF4—171 | NC50 | NC50 | 1940±5 | 171 (6-3/4) | 71.4 (2.8) | 240 (9.45) | 241.3 (9 1/2) | 450 (17.72) |
| LX240HF4—171NB | NC50 | 4 1/2REG | 1785±5 | |||||
| LX311HF4—203 | 6 5/8REG | 6 5/8REG | 2060±5 | 203 (8) | 71.4 (2.8) | 311 (12.24) | 311.1 (12 -1/4) | 500 (19.68) |
| LX311HF4—203NB | 6 5/8REG | 6 5/8REG | 1910±5 | |||||
| LX444HF4—241 | 7 5/8REG | 7 5/8REG | 2320±5 | 241 (9-1/2) | 76.2 (3) | 444 (17.5) | 444.5 (17-1/2) | 600 (23.62) |
| LX444HF4—241NB | 7 5/8REG | 7 5/8REG | 2170±5 | |||||
| LX660HF4—241 | 7 5/8REG | 7 5/8REG | 2700±5 | 241 (9-1/2) | 76.2 (3) | 660 (26) | 660.4 (26) | 600 (23.62) |
| LX660HF4—241NB | 7 5/8REG | 7 5/8REG | 2550±5 |