What is API 5CT Casing Pipe
The API 5CT casing is a steel pipe used to support the oil and gas well wall to ensure the normal operation of the entire well after the drilling process is completed and completed. Each well is based on different depths of drilling and geology, using several layers of casing. After the casing is drilled, the cement cementing is adopted. It is different from the oil pipe and the drill pipe and cannot be reused. It is disposable material. Therefore, the consumption of casing accounts for more than 70% of all oil well pipes.
API 5CT J55 Casing pipe is mainly used for oil well drilling mainly for supporting the well-wall during and after drilling to ensure the drilling process and the normal operation of the entire well after completion. The casing can be divided into the conduit, surface casing, technical casing and oil casing. Steel grades for oil casings: H40, J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc.
Manufacturing Process of API 5CT Casing Pipe
Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening → pipe cutting → inspection
1. An annular heating furnace is required for ingot heating;
2. Punching and reheating with hydraulic press;
3. The oil casing plant uses a two-roller guide plate extension machine for extension;
4. Re-use a disc heating furnace for periodic rolling, and use a non-entry furnace for reheating, cooling, straightening, pipe cutting, and inspection.
