Seamless BC Casing

Surface casing: Install casing head at the top to suspend and support casing at each layer; Protect the fresh water layer from polluted by drilling fluid.
Medium casing: Insulate bed series or complicated stratum in order to install anti-burst device, anti-leakage device and liner in the well.

Production casing: Protect production layer, provide tunnel for oil & gas.
The OD of casing is from 114.3 to 508mm.

Our company not only produce high performance and low cost API tubing & casing, but also upgrade the casing product structure. Now the company has developed FT-high anti-collapsing casing. FT casing for Heavy Oil Thermal Recovery Well. FT Casing for H2S Corrosion Resistance, high grade ERW casing to meet the requirements of various geological condition.

Seamless casing blank is manufactured by advanced Accu-roll, enhance the anti-collapsing performance of tubing & casing body; The company developed and patented tooling and fixture, such as pipe end inner and outer support device, toolbar strengthening device to improve pipe clamping rigidity, reduce clamping distortion, eliminate cutting oscillation, improve thread quality.

Increase casing weld impact through improving ERW extrusion variable and welding angle. ERW finished casing welds have good performance, the impact value is nearly the same as base metal.

The bodies of casing have even WT, small ovality, smooth thread surface, no stress concentration area, good tensile, anti-collapsing and sealing performance.