
Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521

Keywords :API 5CT casing Update : 2026-10-23 View(s) : 9
API 5CT casing is essential for wellbore stability, formation isolation, and safe drilling and production. End sizing and controlled thermal processing are two manufacturing steps that help meet its dimensional and mechanical requirements. End sizing controls outside diameter, roundness, ...

Keywords :L80 casing steel pipe Update : 2026-10-22 View(s) : 16
API 5CT L80 casing steel pipe is widely used in deep oil and gas wells requiring a suitable balance of strength and controlled material properties. L80 casing supports wellbore integrity by resisting axial tension, external collapse, internal burst, and combined downhole loads. Available ...

Keywords :CASING PIPE oil and gas Update : 2026-10-21 View(s) : 22
Bushings in oil and gas equipment such as drilling assemblies, pumps, and valves face sulfide stress cracking (SSC) risk in H₂S-containing sour service environments. SSC is environmentally assisted cracking driven by tensile stress, excessive hardness, unsuitable microstructure, H₂S partia...

Keywords :Casing Pipe Update : 2026-10-20 View(s) : 51
Selecting the right casing pipe connection is critical for well integrity, load transfer, and long-term sealing performance. Common API casing connections include STC, LTC, BTC, and premium hermetic connections. STC provides short engagement for conventional wells, while LTC offers longer ...

Keywords :oil well casing Update : 2026-10-19 View(s) : 57
Selecting the right casing for sulfur-containing gas wells is critical because hydrogen sulfide (H₂S), high pressure, and corrosive fluids can cause sulfide stress cracking and premature failure. API 5CT grades L80, C90, and T95 offer different yield strengths, but higher strength alone d...