Oil casing is the steel pipe used to support the wall of oil and gas Wells to ensure the normal operation of the entire well during the drilling process and after the completion of the well. Each well uses several layers of casing, depending on the geology. Cement should be used after the casing is running. It is different from tubing and drill pipe, and can not be reused. It belongs to disposable consumption material. Oil pipe is mainly used for oil and gas well drilling and oil and gas transmission. It includes an oil drilling pipe, oil casing, and oil pumping pipe. The oil drill pipe is used to connect the drill collar to the drill bit and transfer drilling power. Oil casing is mainly used to support the good wall during drilling and after completion, so as to ensure the drilling process and the normal operation of the whole well after completion.

The pumping pipe mainly transfers the oil and gas from the bottom of the well to the surface. Oil casing is the lifeline of oil well operation. Due to different geological conditions, the underground stress state is complex, tensile, compressive, bending, and torsional stress act on the pipe body, which puts forward higher requirements on the quality of the casing itself. If the casing itself is damaged for some reason, the entire well can be reduced production or even abandoned. According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Different good conditions, well depth, and the use of steel grade are also different. The casing itself is also required to have corrosion resistance in a corrosive environment. In the place of complex geological conditions, the casing is also required to have the ability to resist collapse.

Cangzhou Shenlong Pipe is a qualified supplier of PetroChina and BP Oil. Its products are widely used in oil and petrochemical projects all over the world. It is a reliable producer.