SSAW Pipe

    How to prevent buckle adhesion of J55 erw casing, API erw casing with a hollow section, a large number of pipes used for conveying fluid, such as the transmission of oil, natural gas, gas, water and so on. The use of steel pipe manufacturing ring parts, can improve the utilization of materials, simplify the manufacturing process, saving materials and processing time, such as rolling bearing rings, jack sets, etc., has been widely used to manufacture steel.     API erw casing is mainly used for oil and gas drilling and oil and gas transportation. It includes oil drilling pipe, oil casing, pumping pipe.     The oil drill is mainly used to connect the drill collar and drill bit and pass the drilling power. The erw casing is mainly used in the drilling process and after completion of the support of the wall to ensure that the drilling process and after the completion of the normal operation of the entire well.     ERW casing is the lifeline...

    ERW casing is a large diameter pipe, play a fixed oil and natural gas wells or wells role. The casing is inserted into the wellbore and fixed with cement to prevent the wellbore from separating the formation and the borehole from collapsing and ensuring that the drilling mud circulates in order to facilitate drilling.     The different types of bushings used in the oil extraction process: the surface of erw casing protects the wells from shallow water and shallow air, supports the wellhead equipment and maintains the other layers of the casing. Technical erw casing to separate the pressure at different levels, so that the amount of normal drilling fluid circulation and protection of production casing. In order to install anti-bursting devices, leak-proof devices and tail pipes in the drilling. The oil-bearing casing exports oil and natural gas from the storage layer beneath the surface. Used to protect the wells and stratify the drilling mud. ERW casing product...

    Quenched and tempered: erw casing quenched after the high temperature tempering known as quenching and tempering treatment. High temperature tempering refers to tempering between 500-650 ° C. Quenching and tempering can make the performance of erw casing, material to a large degree of adjustment, its strength, plasticity and toughness are better, with good comprehensive mechanical properties. After tempering treatment to get tempered sorbite. Tempered sorbite is formed by tempering martensite and is magnified by more than 500 to 600 times under an optical microscope microscope. It is characterized by the distribution of carbides in the ferrite matrix Carbon body) pellets of the composite organization. It is also a tempering organization of martensite, a mixture of ferrite and granular carbides. At this point the performance of erw casing in the ferrite has been basically no carbon supersaturation, carbide is also a stable carbide. At room temperature is a balanced organiz...