NW Positive (rigid) Centralizers
 Model No: | API certificate |
 Name: | NW Positive (rigid) Centralizers |
 Application: | land and offshore wells |
- Description
- Specifications
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NW Positive (rigid) Centralizers are generally constructed in one piece to add greater strength and are held in place by high loads top collars or set screws; The tools are designed to improve cement flow while promoting maximum standoff from the borehole. There exist different kinds of rigid centralizers, such as straight blade or spiral blade type. The material of rigid centralizers could be aluminum alloy, casting steel and forging steel.
Parameter sheet of rigid casing centralizer
| Size | ID mm | OD mm | Height mm | Rib width mm |
| 4 1/2*6 | 117 | 146 | ＞120 | ＞20 |
| 5*6 1/2 | 129 | 160 | ＞120 | ＞20 |
| 7*8 1/2 | 181 | 210 | ＞200 | ＞35 |
| 9 5/8*12 1/4 | 247 | 305 | ＞200 | ＞40 |
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