Oil casing acts as the vital pressure‑bearing tubular for oil & gas drilling. It reinforces wellbore wall, isolates different formation water and oil layers, prevents collapse, and guarantees long‑term stable operation of wells, which is indispensable for well completion.

Our casing is manufactured based on API 5CT seamless steel pipe base material. Available steel grades include K55, N80‑1, N80‑Q, L80, P110. Thread options consist of plain thread, upset thread and non‑API premium connection.

All products undergo quenching & tempering heat treatment, precision CNC threading and comprehensive NDT inspection, featuring outstanding collapse resistance, tensile strength, burst resistance and corrosion resistance. Suitable for conventional shallow wells, deep wells, high‑pressure wells, corrosive wells and geothermal wells.

Complete specifications with abundant stock. Custom OD, wall thickness and thread types are available. Matched casing couplings can be supplied together. Shipment by land truck and sea container is supported.