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Seamless OCTG casing
Seamless casing is a casing made of seamless steel pipe as raw material. Seamless pipe is a pipe product used to transport fluid or gas. It is characterized by no welds, so it is also called seamless steel pipe. Compared with welded steel pipes, seamless pipes have higher strength and pressure resistance, and are suitable for withstanding harsh conditions such as high pressure, high temperature, and corrosive media.Daha çox oxu -
Black welded steel tube
Black welded steel tube refers to a welded pipe with a black surface. The "welded steel tube" indicates a steel pipe welded by steel plates or strips after being curled and formed, usually with a fixed length of 6 meters. The "black steel tube" is steel that is not galvanized and its color is caused by iron oxide on the surface.Daha çox oxu -
Strength properties of octg casing
Octg casing strength refers to the ability of the octg casing material to resist damage by external forces. In petroleum engineering, octg casing is used to withstand underground pressure, prevent wellbore collapse, isolate formations and other important functions. Its strength is crucial to the stability and safe operation of the wellbore.Daha çox oxu -
ERW black steel pipe
ERW black steel pipe is a welded pipe made from black steel pipe through electric resistance welding. High frequency resistance welding is a technique used to join metal pipes and other metal components. It usually uses high-frequency current to heat both ends of the pipe to bring it to the melting temperature and connect them in the molten state. Black steel pipe is a steel pipe that has not been galvanized or painted and is usually used to transport gases and liquids.Daha çox oxu -
What is the allowable stress for sheet pile?
Steel sheet piles are structures with linkage devices on the edges. They can be used as walls to retain water or soil. They are a commonly used sheet pile cofferdam and can be combined to form cofferdams of various shapes. In addition, steel sheet piles have very high strength and can be easily driven into hard coatings.Daha çox oxu -
Steel sheet pile static pressure construction
Before construction, sufficient preparation work needs to be carried out. First, the construction site needs to be cleared to ensure it is flat and free of obstacles. Secondly, you need to check whether the static pressure equipment is normal and prepare all the required materials. Finally, technical training and safety education need to be provided to construction personnel to ensure that they understand the construction process and safe operating procedures.Daha çox oxu -
Life expectancy of black steel pipe
Black steel pipe is primarily composed of carbon and iron, with trace amounts of other elements such as manganese, sulfur, and phosphorus. Unlike galvanized steel pipe, which is coated with zinc for corrosion resistance, black steel pipe relies on its natural oxide layer for protection.Daha çox oxu -
Steel sheet pile driver
Steel sheet piles are a common pile type in the field of steel structures and have the advantages of high bearing capacity, short construction period, and high construction efficiency. In the construction of steel sheet piles, the role of the pile driver is to drill the top of the steel sheet pile into the ground, and gradually let the steel sheet pile sink into the ground under conditions such as controlling the strength and frequency of the pile driver.Daha çox oxu -
OCTG pipe meaning
OCTG(Oil Country Tubular Goods) and oil and gas transmission pipe (Line Pipe) are collectively referred to as oil pipes. Special oil pipes are actually deep-processed products of steel pipes, including special oil well pipes and oil and gas transportation pipes. Drill pipe, casing, tubing, drill collar, kelly, etc. are collectively referred to as special pipes for oil wells.Daha çox oxu
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