The products are made of high-quality seamless steel pipes, and the raw materials are welded pipes and hot tube, which are made of CNC turning wires. The coupling adopts the international standard pure manganese high-temperature phosphating process, and the phosphating film has strong compactness, strong corrosion resistance and anti-sticking ability, high hardness and dense and uniform crystallization. The tubing was inspected by Xi 'an Petroleum Pipe Research Institute, and all performance standards met the inspection technical requirements.

The products are subject to API Spec 5CT and API Spec 5B standards. It mainly produces and sells API5CT tubing, oil casing drilling and surface casing. The types and materials of oil casing produced by our company are relatively complete, such as: 20-inch 508*11.13 ERW straight-seam casing, 508*11.13 seamless casing, 508*11.13 surface casing and 508*11.13 tubing. The specification of commonly used casing for API5CT is 114.3-508 mm. Our company has an annual production capacity of 150,000 tons.

Our company uses 3 modern tubing production lines, 6 coupling lines, and 2 anti-corrosion lines, and is equipped with advanced testing equipment, which can process various materials of φ 139.70 mm-φ 339.72 mm (5-1/2 "~ 13-3/8"), oil casing performance, short round threads and trapezoidal threads with various thicknesses.

Material: DZ40.DZ50.DZ80.H40.J55, K55, N80, L-80, C-90, C-95, P-110, Q-125, etc. The buckle types of API5CT casing are: short round buckle letter (STC), long round buckle letter (LTC), offset ladder buckle letter (BTC), tortoise buckle letter (VAM) and so on. There are three dimensions of API5CT oil casing: R14.88-7.62 R27.62-10.36 R310.36 or longer. Length unit/meter.

Oil casing is an indispensable pipeline to keep oil well running. Under different geological conditions, the downhole stress is very complicated, such as pressure, tension, bending and torsion. This puts forward higher requirements for the quality of casing pipe. Once the casing body is damaged for some reason, it may lead to the reduction of production and even scrapping of the whole well. According to the strength of steel itself, the bushing can be divided into different materials, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. The materials used are different with different well conditions and depths. In the case of corrosion, the tubing body is also required to have corrosion resistance. Anti-collapse performance of tubing is also required in places with troublesome geological environment.

China's oil casing has occupied more than 80% in China, and our company has not only occupied a huge market in domestic provinces for many years, but also extended to all countries in the world. China's output reached 2.5 billion tons, an increase of 0.4% compared with the same period in 2010; Set a record high. Through about 20 years' efforts, China has developed oil casing from scratch, from low-end material to apl-approved material, from high price to high price, quality or quantity to reach the pace of foreign oil casing production.