Pressure Maintenance Drilling is a safe, environmentally friendly, economic, and efficient in-service pipeline maintenance and emergency repair technology, applicable to normal maintenance and reconstruction, as well as emergency repair of sudden incidents (such as pressure maintenance, replacement of corroded pipe sections, installation of equipment, and division and delivery transformation operations) for various mediums like refined oil and chemical media pipelines.

And this is a method for manufacturing interfaces on pipes and containers, with the pipes and containers under pressure or in use during the hole-making process. An additional branch pipe is added for material input or output, and temperature probe monitoring points are set to provide connection points for equipment (shut-off equipment). Hole-making does not require shutdown and does not affect production or material supply. Petrochemical industry: hydrocarbons, heavy oil and light oil, diesel, crude oil, engine oil, flammable and explosive toxic gases, a variety of chemical products.