Title: Application and development of pressure plugging technology in petroleum industry

Introduction:

Pressure plugging technology is a key technology widely used in petroleum exploration and production. It realizes the control of downhole pressure and the maintenance of wellhead equipment through downhole plugging operation, and ensures the efficient oil production. This paper will discuss the principle, application scenario, development history and future trend of pressure plugging technology, in order to deeply understand the role and significance of this important technology in the petroleum industry.

First, the principle of pressure plugging technology

Pressure plugging technology refers to a technology in which the wellhead is still under pressure when plugging operation is carried out underground. The principle is to control the downhole pressure by injecting specific plugging agent or material into the well to form a plugging layer and prevent the flow of downhole fluid. The technology of sealing with pressure can effectively prevent the occurrence of wellbore leakage or oil and gas blowout and ensure the stability of oil production.

Second, the application scenario of pressure sealing technology

1. Downhole shaft leakage repair: When the downhole shaft leakage occurs, the pressure plugging technology can quickly repair the leak point by injecting plugging agent, prevent the leakage of downhole fluid, and avoid environmental pollution and accidents.

2. Downhole oil and gas blowout control: In the case of oil and gas blowout, pressure sealing technology can reduce downhole pressure and control wellhead flow through sealing the wellhead, effectively avoiding the loss and danger caused by oil and gas injection.

3. Downhole shaft maintenance: During downhole shaft maintenance and repair operations, pressure sealing technology can effectively control downhole pressure, ensure the stability of operators, and improve operational efficiency.

Third, the development of pressure sealing technology

Pressure plugging technology originated in the field of petroleum exploration and production in the early 20th century, and was originally proposed to solve the problems of downhole wellbore leakage and oil and gas blowout. With the continuous development and improvement of petroleum exploration and production technology, pressure plugging technology has been further improved and applied. At present, pressure plugging technology has become one of the indispensable important technologies in the oil industry, which provides strong support for the efficient production of oil.

Fourth, the future trend of pressure plugging technology

1. Technological innovation: With the continuous progress of petroleum exploration and production technology, pressure plugging technology will continue to carry out technological innovation, develop more efficient plugging materials and equipment, and improve the efficiency and quality of plugging operations.

2. Automation application: In the future, the sealing technology with pressure will be more automated, through the introduction of manual automation, big data analysis and other technical means, to achieve real-time monitoring and remote control of the sealing operation, improve the accuracy of the operation.

3. Green health: With the improvement of social awareness of environmental protection, the future sealing technology with pressure will pay more attention to health performance, develop more sanitary sealing materials and technical solutions, and reduce the impact on the environment.

Conclusion:

As one of the important technologies in petroleum exploration and production, the sealing technology with pressure plays a key role. Through continuous technological innovation and application promotion, pressure plugging technology will provide more powerful support for the production and sustainable development of the oil industry. It is believed that in the future development, pressure plugging technology will usher in a broader development space, bringing more opportunities and challenges to the oil industry.