SSAW Pipe

 Steel materials for high-end equipment are high-tech products in iron and steel materials. They are aerospace, energy transportation, ocean engineering, automotive lightweighting, environmental protection and other industries and major equipment manufacturing, major engineering construction, strategic emerging industries, and advanced weapons for national defense. The key basic materials needed are of great significance in promoting the sustainable development of the steel industry and safeguarding national industrialization and national defense security. Whether from the perspective of the level of technological development, the quality of varieties, or the competitiveness of industries, there is still a gap between China's high-end steel materials used in advanced equipment and advanced countries. First, the steel production process is backward, and the product's independent development capability is weak. On the whole, China's high-end equipment and iron and steel mater...

    The oil layer casing is the production casing, and the tail pipe technology is only one kind of cementing technology. It is a method of hanging the casing on the upper casing only by the open hole section of the lower oil casing and the technical casing. For details, please refer to the following knowledge, please adopt if you are satisfied.     Petroleum casing is abbreviated as casing, which is a kind of petroleum pipe. The pipes used in petroleum are collectively called petroleum pipes. Petroleum pipes include finished oil casings, drill pipes, drill collars, couplings and short rods.     1. Classification and function of casing     The casing is a steel pipe that supports the walls of oil and gas wells. Each well will use several layers of casing according to different drilling depths and geological conditions. Cement is used to cement the casing after it goes down the well. It is different from tubing and drill pipe and cannot be re...