Api steel welded bow spring casing flexible centralizer for drill pipe
Drill pipe centralizer
1. Sizes ranging from 4-1/2" to 20"
2. Hinged type collar
3. Welded type bow
4. Apply in stab in type cement jobs
5. High restoring force
Features of api welded bow spring casing flexible centralizer for drill pipe use
>>the longer bow profile allows centralizers to be pulled into restrictions and into larger under reamed open hole.
>>with heat treated in special furnace, peculiar 'bow spring' action.
>> the end collars have hinges which makes it in two halves.
>>a special locking mechanism.
Centrlizers parameter:
| Welded centralizer specification(mm) |
| 5-1/2"*8-1/2" |
Single bow |
142-148 |
5-7 |
50-60 |
650±50 |
225±5 |
5 |
| 5-1/2"*8-1/2" |
Double bow |
142-148 |
5-7 |
50-60 |
650±50 |
225±5 |
5 |
| 5-1/2"*8-1/2" |
Cyclone single bow |
142-148 |
5-7 |
50-60 |
650±50 |
225±5 |
6 |
| 6"*8-1/2" |
Double bow |
154-118 |
5-7 |
50-60 |
650±50 |
225±5 |
5 |
| 13-3/8"*17-1/2" |
Single bow |
342-349 |
8 |
50-60 |
580 |
450±5 |
6 |
| 20"*26" |
Single bow |
510-518 |
8 |
50-60 |
650±50 |
670±5 |
10 |
Contact:
Amy zhang
