Solid Rigid Straight Vanes Bow Spring Casing Centralizer 5-1/2 to 20 Inch API
Solid rigid centralizer with straight vanes and bow springs for casing drilling. API certified, sizes from 4-1/2 to 20 inch. Features high wear resistance, easy mud flow, and custom options for deviated or horizontal wells.
Solid Rigid Straight Vanes Roller Centralizer for Casing Drilling with API
The top wire casing rigid roller centralizer consists of a rigid body, on which machined five spiral blades. There are three or four modified alloy steel, fully heat treated rollers fixed on every spiral blades. The assembly is shown as following fig. Because of rigid body and rolling friction between the rollers and inside of well or casing, the capability of the top wire casing rigid roller centralizer is better than others of all. Recommend to use the tool in deviated holes and horizontal holes.
- Roller centralizer is with rigid body and straight or spiral blade
- Centralizer body is processed by casting, the rollers is alloy steel and then heat treatment
- The low friction feature and roller, it is easy to run between roller and inside of casing
- Roller centralizer is used in horizontal or deviated well to centre casing
- This kinds of centralizer can remove the wellbore stone and make the mud flow easily
- Roller provides high wear resistance and has long life for centralizer
- Our centralizer coating is powder baking in high temperature
- Roller centralizer sizes are from 4-1/2inch to 20inch, any special sizes are available according requirement
| Casing centralizer | Min Hole | I.D. | O.D. | OAL |
| (mm/inch) | (mm/inch) | (mm/inch) | (mm/inch) | (mm/inch) |
| 139.7(5-1/2) | 215.9(8-1/2) | 143(5-5/8) | 211(8-5/16) | 260(10-1/4) |
| 177.8(7) | 215.9(8-1/2) | 181(7-1/8) | 213.4(8-13/32) | 260(10-1/4) |
| 244.5(9-5/8) | 311.15(12-1/4) | 247.5(9-11/16) | 305.4(12-1/64) | 260(10-1/4) |
| 339.7(13-3/8) | 406.4(16) | 344(13-35/64) | 402(15-53/64) | 260(10-1/4) |
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