Tungsten Carbide Valve Cage For Wellhead Blowout Preventer

High Stability Tungsten Carbide Valve Cage For Wellhead Blowout Preventer​

Product description:

In the construction of oil and natural gas drilling, in order to safely drill through high-pressure oil and gas formations and avoid the occurrence of out-of-control drilling blowout accidents, it is necessary to install a set of equipment—drilling well control device—on the wellhead of the drilling. When the pressure in the wellbore is less than the formation pressure, the oil, gas, and water in the downhole stratum enter the wellbore and form overflow or surge. In severe cases, drilling blowout and fire accidents may occur. The function of the drilling well control device is to quickly close the wellhead in time when there is overflow or kick in the well to prevent the occurrence of blowout accidents. Drilling well control devices mainly include: blowout preventer, cross, remote control console, driller's console, choke and kill blowout manifold, etc. The drilling well control device must meet the requirements of the drilling process, be safe, reliable, easy to operate, and be able to quickly close and open the wellhead. It can be controlled on the driller's console of the drilling rig, and can be operated on a remote console far away from the wellhead. The device must have a certain degree of pressure resistance, which can realize controlled blowout, well killing and tripping of the drilling tool. After installing the rotary blowout preventer, drilling operations can also be carried out without killing the well.

Drilling blowout preventers can generally be divided into single ram, double ram, universal (ring) and rotary blowout preventer. According to the drilling stratum and the requirements of the drilling technology, several blowout preventers can also be combined and used at the same time. There are a total of 15 sizes of the existing drilling blowout preventer. The choice of size depends on the casing size in the drilling design, that is, the nominal diameter of the drilling blowout preventer, which must be slightly larger than the outer diameter of the casing coupling when it is run again . The pressure of the blowout preventer has 9 pressure levels ranging from 3.5 to 175 MPa, and the selection principle is determined by the maximum wellhead pressure that it bears when the well is shut in.

Product feature:

1. Heat resistant; very good wear resistant

2. High hardness, the vast majority of metal powder crushing

3. High hardness and impact toughness, chemical stability.

4. Long life time

5. Easy operation