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Ⅰ. Overview
The Fluted Centralizer is a basic tool for providing centering when using small diameter tools in large tubular wells, which is also called rigid centralizer.
Second, the commonly used specifications and technical parameters:
Ⅱ. Common technical parameters:
| Tubular Column Size | FIshing | Connection | Outside diameter specification |
| 2-3/8″ | 1.375″ | 15/16-10UN | 1.875″ |
| 2-7/8″ | 1. 375″ | 15/16-10UN | 2.25″ |
| 3-1/2″ | 1.75″ | 1-1/16-10UN | 2.81″ |
| 4-1/2″ | 1.75″ | 1-1/16-10UN | 3.75″ |
Note: More customized parts are available upon request.
Ⅲ. Usage:
1.1. Connect the grooving centralizers to the upper and lower parts of the weighting rod (at least two centralizers are connected to one tool string);
1.2. If there is a jar going down, connect the centralizer at the lower part of the jar;
IV. matters needing attention:
1. Tighten the threads before each trip;
2. According to the situation of the pipe string, select the centralizer with appropriate diameter.
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