| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 6 Months |
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API Spec Bow Spring Centralizer for Oilfield Drilling Use
Simple construction:
1)strict API standard
2)First-class reputation from registered customers
3)Delivery on time
4)Standard seaworthy packing
The bow springs of this centralizer have two types as follow: Non-welded single bow spring centralizer and non-welded double bow spring centralizer. The centralizer are attached to the end rings without welding. The bow spring casing centralizer bow end is connected to the end rings with a locking tab that bears the load force on the centralizer.
The centralizers are supplied in hinged segments joined by hinge pins in each segment. All non-welded centralizers meet or exceed the requirements of API Specification 10D, which dictates the minimum restoring and maximum starting forces for centralizers for various casing/hole size combinations.
Advantages:
1) Designed for high restoring force and low running force.
2) End collars are designed with self-locking action, which are easy to assemble.
3) Undergo special coating process to prevent from rust.
4) Can be shipped in half assembled condition for economy in shipping and storage costs.
| NO. | Size (in) | ID(mm) | Height | OD |
| (mm) | (mm) | |||
| 1 | 5-1/2"*7" | 142-148 | 305 | 215 |
| 2 | 5-1/2"*8-1/2" | 142-148 | 305 | 225 |
| 3 | 6"*8-1/2" | 156-158 | 305 | 235 |
| 4 | 7"*8-1/2" | 181-186 | 400 | 235 |
| 5 | 7"*9-5/8" | 181-186 | 400 | 255 |
| 6 | 7-5/8"*9-5/8" | 197-201 | 400 | 275 |
| 7 | 9-5/8"*12-1/4" | 250-255 | 650 | 330 |
| 8 | 13-3/8"*17-1/2" | 342-347 | 650 | 450 |
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