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Technology for making openings in pipelines while maintaining flow and pressure, along with safety analysis: This technology can be considered quite safe; it is already mature and suitable for use on pipelines in companies of various manufacturers, enabling operations to be carried out while keeping the flow and pressure intact. As long as no accidents occur during the construction process, and operations are carried out in accordance with the regulations, no accidents will happen; opening holes while under pressure is also relatively safe. Due to factors such as the medium flowing in the pipeline, pressure, wall thickness, and flow dynamics, performing hole-opening operations while the pipeline is in operation poses certain potential risks. This study analyzes and summarizes the various risks associated with online welding and hole-opening processes during such operations, and proposes corresponding safety measures to ensure the safe execution of these tasks while the pipeline remains in use. Pressurized opening allows for a definite sealing pressure; when the pressure pipe becomes blocked, it ensures that the product can serve as a substitute for flexible sealing technologies, and by creating a buffer between the outlet of the damping tube and the cable, it is able to withstand minor axial expansion and contraction vibrations. Avoid wear that may occur due to the cables moving up and down between cable trays. The curved elastic surface formed by expansion is resistant to damage from bites by small animals, as well as to acid-base corrosion and salt spray. -Under temperatures of 15°C to 60°C, proper management of the air sacs, along with the use of waterproof sealing materials, ensures effective resistance to aging; the product design allows for complete isolation of air and moisture flow at both ends once it is installed. Hold the tube dry and clean. Installation is simple, using ordinary compressed air for pressurized construction. It is not affected by the water, electricity, or environmental conditions at the construction site, which reduces the difficulty and intensity of the work. Installation is quick – the operation can be completed in just 3-5 minutes. Reduce project duration and save corporate costs. It is easy to dismantle and maintain; once the pipe sealing is properly in place, it can be used for over 20 years without any human-induced damage to its environment. The plug does not need to get angry in order to eliminate leaks and ensure safety. Pressure-based plugging allows for the management, maintenance, and emergency repair of pipeline systems without interrupting the flow of the medium or reducing pressure. It enables the normal operation of these pipelines by enabling tasks such as adding bypasses, replacing or installing valves, exchanging pipe sections, making local adjustments to the pipeline route, and addressing internal control issues within the pipeline system. This plugging technology helps to reduce economic losses for companies as well as any negative environmental impacts. The principle of sealing with pressure ports is based on the sealing mechanism of solid sealing materials under dynamic conditions. In this method, a chamber is created between the leaking part of the equipment and the sealing element; a specialized high-pressure sealant dispensing tool is used to fill the entire space within this chamber. The pressure exerted by the sealant counteracts the leakage, thereby establishing a new sealing structure that blocks the leakage pathways and prevents the escape of the medium. Moreover, pressure-sealing operations have strong adaptability and a wide range of applications in research. The above covers the explanation of the technology for making openings under pressure without interrupting pipeline flow, as well as the safety analysis and plugging of openings under pressure.