Drilling tool float valve

Drilling rig float valve is an important anti spray tool inside the drill string, including top type float valve and flap type float valve.

1、 Definition and function of drilling rig float valve

Drilling tool float valve is a device used to control the flow of drilling fluid during the drilling process, with the main function of preventing drilling fluid from flowing back into the drill pipe or rock core. The drilling rig float valve is usually connected to the joint between the casing and the drill pipe, used to control the flow rate and pressure of drilling fluid passing through the drill pipe. Xinjiang Top Drive IBOP

The function of the drilling tool float valve is very important. It can enable the drilling fluid to flow smoothly during the drilling process, avoid blocking the drill rod or borehole, protect the core from damage, and control the flow rate and pressure of the drilling fluid to ensure the safety and efficiency of the drilling process.

2、 Types and structures of drilling rig float valves

There are many types of drilling rig float valves, which can be divided into automatic float valves and manual float valves according to different needs and purposes.

Automatic float valves are generally composed of buoyancy bodies, valve bodies, valve springs, springs, and other parts. When the drilling fluid flows from bottom to top, the buoyancy will rise and the valve spring will close. Then, the valve spring will be clamped by the spring to prevent the drilling fluid from flowing back into the drill pipe or rock core. When the drilling fluid flows from top to bottom, the buoyancy will be lowered downwards, and the valve spring will automatically open, allowing the drilling fluid to flow smoothly into the drill pipe.

Manual float valves require manual adjustment and are typically composed of a handle, valve spring, spring, and other components. During the drilling process, if it is necessary to change the flux of the float valve or close the valve, manual float valve adjustment is required.

3、 Application of drilling rig float valve

Drilling tool float valves are widely used in drilling operations in the fields of petroleum, natural gas, and geothermal energy. During the drilling process, the role of the drilling tool float valve is crucial as it can effectively control the flow of drilling fluid, making the drilling process safer and more efficient.

In addition, drilling rig float valves can also be used to control the density and viscosity of drilling fluid, making the performance of drilling fluid more stable and reliable. At the same time, it can also be used to control the speed and flow rate of drilling fluid inside the drilling pipe, preventing drill pipe distortion and damage caused by excessive flow.