| Customization: | Available |
|---|---|
| After-sales Service: | Technical Support |
| Warranty: | 1 Year |
Suppliers with verified business licenses
Custom Size Centralizers for Cementing Tools
Straight/Spiral Roller Solid Centralizer
› Fully heat treated rollers are fixed on every straight or spiral blades/vanes.
› Better capacity than the straight/spiral vanes solid centralizers because of rigid body and rolling friction between the roller and inside of well or casing.
› Made of cast steel, which is high tensile and solid for shock and impact resistance.
› Roller/wheeled centralizers are mainly used for high deviated wells and horizontal wells to centralize casing.
› Can remove wellbore cake and improve mud replacement efficiency.
› Provide superior wear resistance and remain functional throughout the life of the well and can aid in casing/tubing retrieval.
› Smaller roller-contact area reduces the risk of differential sticking and maintains standoff when running casing through open holes.
› Rollers are crimped in place, eliminating the welding process, while ensuring the rollers cannot bread free and fall intot he wellbore.
› Standard size is 4-1/2" to 20". Any special sizes or combinations can be customized on request.
| Popular Specifications of Bow Spring Centralizers | ||||
| Size (inch) | Bow Quantity | Outside Diameter | Inner Diameter | Overall Length |
| 4-1/2" × 6" | 4 | 160 | 116 | 450/575 |
| 4-1/2" × 6-1/4" | 4 | 167 | 116 | 450/575 |
| 4-1/2" × 7-7/8" | 4 | 210 | 116 | 450/575 |
| 4-1/2" × 8-1/2" | 4 | 230 | 116 | 450/575 |
| 5" × 6" | 4 | 160 | 128 | 450/540 |
| 6" × 6-3/4" | 4 | 180 | 128 | 450/575 |
| 5" × 7-7/8" | 4 | 210 | 128 | 450/575 |
| 5-1/2" × 7-7/8" | 5 | 210 | 140 | 450/575 |
| 5-1/2" × 8-1/2" | 5 | 216/245 | 140 | 450/575 |
| 5-1/2" × 8-3/4" | 5 | 222/250 | 140 | 450/575 |
| 5-1/2" × 9-7/8" | 5 | 251/264 | 140 | 450/575 |
| 5-1/2" × 9-1/2" | 5 | 242/264 | 140 | 450/575 |
| 7" × 8-1/2" | 6 | 216/230 | 179 | 450/575 |
| 7" × 8-3/4" | 6 | 222/233 | 179 | 450/575 |
| 7" × 9-1/2" | 6 | 242/264 | 179 | 450/575 |
| 7" × 9-7/8" | 6 | 251/264 | 179 | 550/650 |
| 9-5/8" × 12-1/4" | 8 | 346 | 245 | 550/650 |
| 9-5/8" × 13-3/8" | 8 | 346/352 | 245 | 550/650 |
| 9-5/8" × 12-13/16" | 8 | 378 | 245 | 550/650 |
| 10-3/4" × 14-3/4" | 9 | 405 | 275 | 550/650 |
| 10-3/4" × 15-1/2" | 9 | 374 | 275 | 550/650 |
| 13-3/8" × 17-1/2" | 10 | 440/466 | 342 | 550/650 |
| 13-5/8" × 17-1/2" | 12 | 440/466 | 342 | 550/650 |
| 20" × 26" | 12 | 696 | 510 | 550/610/650 |
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