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球形稳定器由于其结构短小紧凑、钻井阻力小，适用于打水平井及定向井。
The spherical stabilizer is one of new type tools which is used in horizontal and directional well to prevent hole inclination, improve drilling solution, improve drill tools service life and hole condition, cut off /scrape bore wall . Because of small size, simple structure, it is so applicable for horizontal and directional well .The guide inclined plane covered with polycrystalline compact and cutting edges covered with spherical tungsten carbide stud ,during stabilizer contacts with roughed hole wall , can cut or scraped off raised or irregular well wall, therefore, the spherical stabilizers are widely used in various of drilling operation.
技术规格及参数
| 工作外径(in) |
两端本体(mm) |
内径(mm) |
长度(mm) |
两端螺纹(in) |
| 钻柱型 |
井底型 |
| 上端 |
下端 |
上端 |
下端 |
| 6～6 1/2 |
φ121 |
φ51 |
785 |
3 1/2IF |
3 1/2IF |
3 1/2IF |
3 1/2REG |
| 7～7 7/8 |
φ159 |
φ57 |
850 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
| 8～8 1/2 |
φ165 |
φ71 |
850 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
| 9～9 1/4 |
φ197 |
φ71 |
870 |
4 1/2IF |
4 1/2IF |
4 1/2IF |
4 1/2REG |
| 12～12 1/4 |
φ203 |
φ76 |
940 |
6 5/8REG |
6 5/8REG |
6 5/8REG |
6 5/8REG |
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