A Pumping Sub is a tool that is attached to the end of a downhole string or fluid control device. When the upper part of the Pumping Sub is pressurized to the flushing pressure from the ground, the overflow channel can be opened, so that the Pumping Sub can be connected up and down for the maintenance of oil and gas wells in the later stage.
Szie | FN | Connection |
1.5″ | 1.375″ | 15/16″-10UN |
2″ | 1.375″ | 15/16″-10UN |
2.5″ | 1.375″ | 15/16″-10UN |
3″ | 1.75″ | 1-1/16″-10UN |
3.5″ | 2.313″ | 1-1/16″-10UN |
Technical parameters can also be according to user requirements
The Pumping Sub is composed of a conversion joint, a sealing sleeve, a plunger, a body, a spring, a shear pin and a plug. See attached drawings for details.
The upper part of the adapter is connected to the pipe string or the fluid control device, the lower part is connected to the body, and the plug and the plug form the shell of the tool.
The sealing sleeve cooperates with the plunger and is installed in the body to play a sealing role.
1. After the tool is disassembled, the damage of each part should be checked, and the damaged parts should be replaced.
2. When assembling, a thin layer of grease should be applied to the thread surface.
3. After assembly, make a mark and store it for later use.