Published December 2012

The improvement of hydraulic turbo catchers’ configuration

G.G. Guseynov

The reviewed hydraulic device is applied in catching tools in order to capture damaged pipes in the wells with their further removing. The hydraulic device is brought to working state while flush fluid injection. As a result of fluid pressure decrease due to difference of bores diameters in the cylinders and piston-fitting, the last one shifts downward. In the shifting of piston and restrainer, the system fixing in up close-ended location takes place. The fixing lasts during whole fluid injection period. After flush fluid supply is stopped, the hydraulic device returns to its home position.