The sealing technology with pressure plays a vital role in the engineering field. It is a sealing construction method used for pipeline, wellbore and other facilities, and has the advantages of high stability, high efficiency and low cost. This paper will deeply discuss the principle, application field, construction steps and future development trend of pressure sealing construction technology.

First, the principle of pressure sealing construction technology

Pressure sealing construction technology refers to the construction in the pipeline or wellbore, through a certain sealing equipment to seal the pipeline or wellbore, forming a certain confined space, and then construction operations in the closed space. This construction method can effectively prevent the leakage of the medium, ensure the stability of the construction personnel, and improve the construction efficiency.

The principle of pressure sealing construction technology mainly includes the following aspects:

1. Plugging equipment: with pressure plugging construction technology requires the use of special plugging equipment, such as plugging device, plugging ball, etc., these equipment can form an effective plugging in the pipeline or wellbore to ensure the tightness of the construction process.

2. Pressure control: During the construction process, the pressure in the blocked space needs to be controlled to ensure the stability of construction. Normally, the pressure is adjusted by increasing or decreasing the gas or liquid in the occluder.

3. Construction operations: When carrying out construction operations in the blocked space, appropriate tools and equipment should be selected according to the specific conditions to ensure construction quality and efficiency.

The principle of pressure sealing construction technology is simple and clear, but in practical application, it needs to be flexibly used according to the specific situation to ensure the smooth progress of construction.

Pressure sealing construction technology is widely used in pipeline and wellbore construction in petroleum, gas, chemical and other industries, including the following aspects:

1. Petroleum industry: in the process of oil exploitation and transportation, it is often necessary to repair, replace or test the pipeline, and the construction technology with pressure sealing can effectively ensure the construction safety and normal operation of the pipeline.

2. Natural gas industry: The construction and maintenance of natural gas pipeline has high stability requirements, and the construction technology with pressure sealing can effectively prevent natural gas leakage and ensure the stability of the staff.

3. Chemical industry: chemical production often needs to clean, repair and other operations of the pipeline, with pressure sealing construction technology can improve construction efficiency and reduce production downtime.

The application of pressure sealing construction technology in the above fields has been widely recognized, and has become an important means to ensure the stability of the project and improve the construction efficiency.

Construction steps with pressure sealing construction technology

The construction steps of pressure sealing construction technology mainly include the following links:

1. Preparation: Before the construction of sealing with pressure, the construction site should be carefully inspected and prepared to ensure that the construction equipment is in good condition and the construction personnel understand the construction process.

2. Plugging equipment installation: Select a proper plugging equipment based on construction requirements and install and commission it to ensure that the plugging equipment works properly.

3. Plugging construction: Put the plugging equipment into the pipeline or wellbore to form an effective plugging, and then carry out construction operations, such as cleaning, maintenance, replacement, etc.

4. Pressure control: During the construction process, it is necessary to monitor the pressure in the blocked space and adjust it as needed to ensure the safe construction.

5. Completion of construction: After completion of construction, it is necessary to remove the plugging equipment and clean up the construction site to ensure the construction quality.

The construction steps with pressure sealing construction technology are relatively simple, but the construction personnel need to have certain advanced knowledge and skills to ensure the smooth progress of construction.

Fourth, the future development trend of pressure sealing construction technology

With the continuous development and progress of engineering technology, the construction technology of sealing with pressure is also constantly innovative and improved, and the future development trend mainly includes the following aspects:

1. Application of automation technology: In the future, the construction technology with pressure sealing may introduce more automation equipment and technology to realize the automation of the construction process and improve the construction efficiency and quality.

2. Health technology application: With the improvement of health awareness, more health technologies and equipment may be introduced in the future with pressure sealing construction technology to reduce the impact on the environment.

3. Data management: In the future, more data management means may be introduced into the pressure sealing construction technology to realize the data monitoring and management of the construction process and improve the transparency and controllability of construction.

To sum up, pressure sealing construction technology has an important position and role in the engineering field, with the continuous innovation and improvement of technology, I believe it will play a more important role in the future development, providing more stable and efficient solutions for engineering construction.