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Oil Country Tubular Goods (shorted as OCTG) is mainly used for oil and gas well drilling and gas transmission, including Oil Drill Pipe, Casing, Tubing, Sucker Rod.
API SPEC 5CT OCTG Tubing
Oil Country Tubular Goods (shorted as OCTG) is mainly used for oil and gas well drilling and gas transmission, including Oil Drill Pipe, Casing, Tubing, Sucker Rod.
OCTG Tubing pipe goes inside the casing pipe because it is the pipe through which oil makes its way out. Tubing is the simplest part of OCTG and it is normally found in the segment of 30 ft (=9 meters), with threaded connections at both ends. The pipe is either used to transport natural gas or crude oil from the producing formation to the facilities where it will be processed after drilling is complete.
OCTG tubing in API 5CT is also in the same material grades (J55/K55, N80, L80, P110 etc), but the tubing’s diameters are up to 4 1/2”, and it ends in various types such as BTC, EUE, NUE, and premium. Most commonly, thickened connections EUE.
Standard: API 5CT
Grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4-1/2”-- 20”for Casing; 1.05”- 4-1/2”for Tubing
Length:R1 /R2/R3
