Integral Spiral Stabilizer
Integral triple-helix and four-helix stabilizers are divided into the bottom-hole type and the drill string type. The wear-resistant material of its working surface has various forms, such as carbide column inlaid，PDC inlaid，hardfacing electrode overlaid，Background brazing carbide etc.
Technical Parameters:
|
IN |
OD (mm) |
End OD (mm) |
ID (mm) |
Length (mm) |
Connection |
|||
|
String type |
Near bit type |
|||||||
|
Top |
Down |
Top |
Down |
|||||
|
6 |
152.4 |
121 |
51 |
1200 |
NC38 |
3 1/2 REG |
||
|
6 1/4 |
158.7 |
|||||||
|
6 1/2 |
165.1 |
|||||||
|
7 1/2 |
190.5 |
159 |
57 |
1600 |
NC46 |
4 1/2 REG |
||
|
7 7/8 |
200 |
|||||||
|
8 3/8 |
212.7 |
159 165 |
71 |
1600 1800 |
NC46 NC50 |
|||
|
8 1/2 |
215.2 |
159 165 178 |
||||||
|
8 3/4 |
222.2 |
|||||||
|
9 1/2 |
241.3 |
178 197 |
1600 |
NC50 |
NC50 |
NC50 |
||
|
9 5/8 |
244.5 |
1800 |
6 5/8 REG |
|||||
|
9 7/8 |
250.8 |
|||||||
|
12 1/4 |
311.2 |
203 209 |
76 |
1800 |
NC56 6 5/8 REG |
NC56 6 5/8 REG |
NC56 6 5/8 REG |
6 5/8 REG |
|
16 |
406 |
229 241..3 |
2000 2200 |
NC61 7 5/8 REG |
NC61 7 5/8 REG |
NC61 7 5/8 REG |
NC61 7 5/8 REG |
|
|
17 1/2 |
444.5 |
|||||||
|
24 |
609.6 |
|||||||
|
26 |
660.4 |
|||||||
|
28 |
711.2 |
|||||||
