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Casing centralizers, also known as drilling centralizer, are important cementing tools to position the casing uniformly inside the wellbore to offer a more uniform distribution of cement slurry around the casing. They can also reduce the friction between casing and wellbore and keep the casing from hitting the wellbore walls.
By this tools, a continuous annular clearance around the casing allows the cement to completely seal the casing to the casing to the borehole wall.
All our casing centralizers are accord with API RP 10D-2 recommendations.
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Bow Spring Centralizers
Bow spring centralizers have slightly larger diameter than the wellbore, which is effective in vertical and slightly deviated wellbores to centralize the casing in borehole so as to improve the cementing efficiency.
Bow spring centralizers are available in single piece, hinged and slip-on types with or without welding process.
Adjustable bow heights and full ranges of sizes ranging from 4-1/2" to 20" can satisfy almost all cementing projects in oil and gas cementing constructions.
The starting force testing and restoring force testing of our bow spring centralizers are performed in accordance with API 10D Standards.
See All Bow Spring CentralizersSolid Rigid Centralizers
Solid rigid centralizers is built using cast aluminum or steel materials. Because the diameter is smaller than the wellbore, so the solid rigid centralizers are not as effective as bow spring centralizers in vertical wells. But they are rugged and works well in the deviated wellbores.
Solid rigid centralizers are available with straight or spiral vanes & rollers. And the length can be regular or short lengths.
4-1/2" to 20" standard sizes and customized service help you find the best solid rigid centralizers for oil and gas cementing projects.
See All Solid Rigid CentralizersSimple Structure
Convenient Use
Long Service Life
Low Maintenance Cost
Improve Cementing Quality
High Centralizing Performance
Reduce Casing and Wellbore Friction
Excellent Corrosion and Abrasion Resistance
Wide Ranges of Structures and Sizes Options
Customized Service Satisfy All Your Projects Requirements
Specifications
| 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 |
| Size (in.) | Inside Diameter (mm) | Height (mm) | Total Height (mm) | Max. Outside Diameter (mm) |
|---|---|---|---|---|
| 5" × 6-1/2" | 128–131 | 110 | 650 | 175 |
| 5" × 6-1/4" | 130–132 | 110 | 650 | 170 |
| 5" × 12-1/4" | 128–131 | 105 | 690 | 330 |
| 5" × 20" | 128–131 | 105 | 720 | 535 |
| 5-1/2" × 7" | 142–148 | 55 | 650 | 215 |
| 5-1/2" × 8-1/2" | 142–148 | 55 | 650 | 225 |
| 5-1/2" × 8-1/2" | 142–148 | 110 | 650 | 225 |
| 6" × 8-1/2" | 156–158 | 55 | 650 | 235 |
| 7" × 8-1/2" | 181–186 | 55 | 650 | 235 |
| 7" × 8-1/2" | 181–186 | 110 | 650 | 235 |
| 7" × 9-5/8" | 181–186 | 55 | 650 | 255 |
| 7" × 9-5/8" | 181–186 | 110 | 650 | 255 |
| 7-5/8" × 9-1/2" | 196–200 | 110 | 650 | 250 |
| 7-5/8" × 9-5/8" | 197–201 | 55 | 650 | 275 |
| 7-5/8" × 12-1/4" | 197–201 | 55 | 650 | 275 |
| 8-5/8" × 12-1/4" | 223–228 | 55 | 650 | 330 |
| 9-5/8" × 12-1/4" | 250–255 | 55 | 650 | 330 |
| 9-5/8" × 12-1/4" | 250–255 | 110 | 650 | 330 |
| 10-3/4" ×12-1/4" | 274–276 | 55 | 650 | 330 |
| 10-3/4" ×12-1/4" | 274–276 | 110 | 650 | 330 |
| 13-3/8" × 17-1/2" | 342–347 | 55 | 650 | 450 |
| 13-3/8" × 17-1/2" | 342–347 | 110 | 650 | 450 |
| 18-5/8" × 24" | 476 | 55 | 600 | 610 |
| 20" × 26" | 510 | 55 | 600 | 660 |
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If you need to consult the price, please contact the business department by E-mail: sales@drinol.com
When you contact us, please provide your detail requirements. That will help us give you a valid quotation.
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