Hinged bow spring centralizer is a traditional processed and economic centralizer, this kind of centralizer is used in general vertical or slightly deviated wells. In the past, this kind of bow spring centralizer is with the highest restoring force and the lowest starting force, so they are wildey used in the drilling or cementing job, but now it is not the highest restoring force bow spring centralizer. It is simply way to increase the restoring force according to bow height.

Feature：

Ø Non-welded, pressed by punching, high strength.

Ø Starting force and restoring force exceed API 10D, it can be run in vertical,highly-deviated and horizontal wells.

Ø Hinged design allows convenient field installation.

Ø Can be unfolded and stacked flatly, saving storage and transportation cost.

Ø Improves displacement efficiency when installed with turbo blades.