What Are The Installation And Use Items Of The Centralizer?

First, the introduction of the centralizer

The centralizer is a cementing tool. It is simple to manufacture, beautiful in structure, strong and durable, and has a large righting force. It overcomes the shortage of the original welded centralizer and is prone to de-soldering. It is a centralizer that can ensure the cementing quality of drilling.

There are many types of centralizers, which can be divided into roller type, slider type, and automatic reversing type according to the structure. Centralizers of different structures and materials are suitable for different types of eccentric oil wells. The key technology for using the centralizer anti-biasing process is the position, spacing and number of centralizer installations.

Second, the use of centralizer

Due to the complexity of the well conditions of the oil wells, the following problems often occur in the production process of the pumping wells.

1. Sucker rod partial grinding: After the slanting of the sucker rod, the production rate of the pumping unit well will be reduced and the production cost will be increased.

2. Low pump efficiency: the eccentric wear increases the friction of the upper stroke and increases the load of the pumping unit, increasing energy consumption, large stroke loss, and low pump efficiency;

3. As the water content of the liquid increases, the specific gravity of the liquid is increased, so that the load of the oil pump is increased and the leakage is increased to reduce the pump efficiency.

Third, the principle of centralizer

The centralizer is a new oil extraction tool used in oil field pumping wells. It is a new type of product that can improve the pumping efficiency of the pump. It is a sliding valve automatic opening and closing structure that is connected to the sucker rod. When the sucker rod is under the stroke, it is slippery. The valve is opened upward to open the oil passage on the positive body. When the sucker rod is on the stroke, the slide valve is closed to close the oil passage on the positive body. Therefore, by stepping the liquid column, the load and pump load of the sucker rod are reduced in stages, the pump leakage is reduced, the elastic elongation deformation of the sucker rod is reduced, the stroke loss is reduced, the effective stroke of the pump is increased, and the pump cylinder is filled. Quantity, improve pump efficiency.

Fourth, the centralizer installation and use matters

1, the principle of minimum stroke loss

According to the combination of the sucker rods, try to reduce the longest oil rod load. It is recommended to install 4-10 of this product every 1000 meters.

2, according to oil quality

This product adopts the sliding valve automatic opening and closing structure to avoid fouling and waxing on the body, but try to avoid the waxing point when installing this product. (Using the factory's reduced viscosity anti-wax liquidification centralizer can prevent this from happening)

3, according to the curvature of the well

This product should increase the installation density properly in the oil well eccentricity, which can play a better role in supporting the sucker rod.

4, pay attention to this product as far as possible to avoid the tubing coupling.