Pressure plugging technology is a widely used technology in the engineering field, the main repair pipeline, wellhead and other engineering structure leakage problems. The technology uses special materials and equipment to inject a pressurized sealer into the leak point to seal and repair the leak. The principle, application, advantages and related equipment of the pressure plugging technology are described in detail below.

I. Principle

The principle of pressure sealing technology is to use high pressure to inject the sealing material into the leak point to form a sealing layer, so as to stop further leakage of liquid or body. The technique is divided into two steps: plugging.

1 Within a certain range around the leak point, use special tools or equipment to strip or remove the material around the leak point to ensure that the plugging material can effectively fill the leak point.

Plugging: Plugging refers to the injection of a pressure sealer into the discharge point to form a sealing layer to prevent further leakage of liquid or gas. The plugging material is usually selected with high density and good pressure resistance, such as polyaminooxide resin, etc., to ensure the durability and reliability of the plugging

Pressure plugging technology is widely used in the following fields:

1. Oil and gas exploitation: In the process of oil and gas exploitation, the pipeline or wellhead will leak, which will lead to energy waste and environmental pollution. Mining and environmental protection2 In industrial chemical plants and manufacturing industrial facilities, leakage may lead to the risk of loss of process and production. The pressure sealing technology can repair the leakage point in time, and the leakage under the active production construction of the certified worker may cause structural damage and leakage. Pressure sealing technology can repair the stability of leakage point construction projects.

Iii. Advantages

Pressure plugging technology has the following advantages over traditional repair methods:

1. Technical repair: with pressure sealing technology can quickly locate and repair the leak point, greatly shortening the time to reduce the risk of production interruption.

2. High efficiency: with pressure sealing technology, a seal can be formed around the leak point to prevent further leakage of liquid or gas, improving the repair effect and durability.

3. Health and stability: the sealing materials used with pressure sealing technology usually have good pressure resistance and corrosion resistance, and can adapt to a variety of complex working conditions, while reducing the pollution of the ring and the damage to personnel.

4. Related equipment

Pressure plugging technology requires the use of a series of special equipment to ensure the effectiveness and stability of the repair. Common devices include:

1. Plugging material injection equipment: with the pressure of the plugging material injected into the leak point, usually composed of high pressure pump, nozzle, control and so on.

2. Equipment: Equipment used to strip or remove the material around the leak point, usually including cutting machines, grinding machines, blasters, etc.

3. Monitoring equipment: equipment used to monitor the location, pressure, temperature, etc., of the leak point to ensure the controllability and reliability of the repair effect.

Summary: Pressure sealing technology is a repair technology widely used in the engineering field, through the process of sealing, can quickly and efficiently repair the leak point, to ensure the safety and stability of the project. The technology has the advantages of timely repair, high efficiency and hygiene, and requires the use of special equipment to carry out the repair work.