API5CT L80 4-1/2 EUE tubing sub

Oil casing short circuiting is a critical component that connects casing strings and is used to adjust length or repair damaged sections. The material is made of API standard alloy steel (such as J55, N80, P110), which combines high strength and corrosion resistance (suitable for H2S/CO ₂ environment). The buckle types include API round thread (STC), skewed trapezoidal thread (BTC), and special sealing buckle types (such as VAM, FOX), with an airtight sealing pressure of 30-70MPa. Its core applications include: 1. Accurately adapting to well depth requirements and reducing material loss; 2. Quickly repair worn or broken casing to reduce operating costs; 3. Adapt to complex well conditions (horizontal wells/high angle wells), improve overall wellbore integrity, with a working temperature range of -30 ℃ to 150 ℃, widely used in oil and gas well completion and repair projects.