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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: 410116

Phone:0086-731-8873-9521  

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CASING PIPE oil and gas

SSC Testing and Acid Service Requirements for Bushings: NACE MR0175 Compliance Points

Keywords :CASING PIPE oil and gas        Update : 2026-10-21        View(s) : 77

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...

Casing Pipe

How to choose the right Casing Pipe buckle type? Strength comparison of STC, LTC, BTC and hermetic b

Keywords :Casing Pipe        Update : 2026-10-20        View(s) : 77

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 ...

oil well casing

Application of oil well casing in sulfur-containing gas wells: Selection logic of L80, C90, and T95

Keywords :oil well casing        Update : 2026-10-19        View(s) : 80

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...

Oil Casing  Oil and Gas

Application and Selection of Oil Casing in Shale Oil and Gas Horizontal Wells

Keywords :Oil Casing Oil and Gas        Update : 2026-10-16        View(s) : 94

Oil casing is critical for shale oil and gas horizontal wells, where long wellbores, complex stress, and repeated high-pressure hydraulic fracturing create demanding service conditions. Casing supports the wellbore, isolates formations, maintains pressure integrity, and provides a structur...

oil well casing  P110 and Q125 oil well casing

How to choose between P110 and Q125 oil well casing? Application scenarios for high-strength casing.

Keywords :oil well casing P110 and Q125 oil well casing        Update : 2026-10-15        View(s) : 90

P110 and Q125 are high-strength oil well casing grades under API Specification 5CT, with minimum yield strengths of 110,000 psi (≈758 MPa) and 125,000 psi (≈862 MPa). P110 is commonly used in deep wells where conventional grades lack sufficient strength, while Q125 may be justified when h...

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