The causes of pump barrel leakage and treatment methods

Causes of leakage of pump barrel

1.plunger for up and down stroke pressure is too large, resulting in pump barrel oil leakage

When the oil pump is pumping crude oil, the plunger is reciprocated by pressure, and in this process, the plunger is mainly a part of the friction with the pump barrel. When the pump plunger moves to the top of the pump barrel, the pressure difference between the upper and lower pump chambers in the pump barrel is too large, which will cause oil leakage.

2. the upper and lower valves of the pump are not strict, resulting in the loss of crude oil in the pump barrel

When the oil inlet valve opens the pressure difference in the upper and lower pump chamber, the crude oil enters the lower pump chamber, and then the oil outlet valve automatically closes under the action of the pressure difference. In this process, if the pressure difference is insufficient, the crude oil cannot be withdrawn into the pump barrel or the oil outlet valve cannot be closed in time after the crude oil is pumped into the pump barrel, resulting in the loss of crude oil in the pump barrel.

3. The operation error of the staff caused the loss of crude oil in the pump barrel

In the process of pumping crude oil, an important reason for the leakage of the pump barrel is the wrong operation of the crude oil collector. Therefore, when the pump is regularly maintained and repaired, it must be carefully and seriously carried out under the guidance of professionals.

Treatment methods for the leakage of pump barrel

1. Strengthen the working quality of the crude oil collection process of the pump

The main reason for the oil leakage of the pump barrel lies in the construction quality, so it is necessary to increase the awareness of responsibility of the crude oil collection personnel, and operate in strict accordance with the crude oil collection specifications, especially the maintenance and repair of the pump barrel, so as to reduce the problem of pump barrel leakage caused by work errors.

At the same time, set up a full-time staff in each crude oil collection team to track and guide the crude oil collection work, and monitor the entire oil production operation; The pressure parameters and wear difference force parameters in the pump barrel are optimized to reduce the damage to the pump chamber and prevent the oil leakage caused by the damage of the pump barrel.

2. strengthen the strength of the pump cylinder strength construction

The use of advanced science and technology to strengthen the internal structure of the pump barrel, to create a solid internal structure, to adapt to high pressure, high stroke pump barrel. Such as: the use of electroplating process, chrome plating on the inner surface of the pump barrel, the use of chromium is not immersed in water, not immersed in oil, not easy to be corroded characteristics, improve the smoothness of the inner surface, brightness; At the same time, the inner surface of the chrome plating is treated by laser, and the high power density of the laser beam is used to make the chromium rapidly heat up to the phase change point, resulting in quenching effect, strengthening the hardening degree of the inner surface of the chrome plating, reducing the friction between the inner surface and the plunger, and effectively protecting the pump barrel cavity.