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Oil Pipe/Tubing

The oil pipe, also known as production tubing, is a seamless pipe used in the oil well. It provides the passage through which the oil flows out of the underground formations and up to the well surface. Threads are cut onto both ends of the pipe, allowing for easier connection to the pipe joint. Thread precision has strict standards to meet so as to ensure a tight seal at the joint.

Standard: API SPEC 5CT Latest Version
Steel Grade: J55, K55, N80, L80, P110, C95 etc.
Size : 60.3-114.3mm
Thread Types: EUE/UP TBG (10RD), NUE /TBG (8RD)
Length Range: R1(6.1-7.32m), R2(8.53-9.75m), R3(11.58-12.80m)

Process Flow Diagram for the Production of Casing pipe
Standard: API SPEC 5CT
Outside Diameter Specified(mm) Nominal Weight Threads & Coupling Steel Grade W.T (mm) Type of Thread

Ib /ft

N U E U
60.32(2 3/8" ) 4.70 H, J, L, P 4.83 YES YES
5.80 C, N, L, P 6.45 YES YES
5.95 L, P 6.45 YES YES
7.35 C, L 8.53
YES
7.45 L, P 8.53
YES
73.02(2 7/8" ) 6.40 H, C, N, L, P 5.51 YES
6.50 H, C, N, L, P 5.51
YES
7.80 C, N, L, P 7.01 YES
7.90 C, N, L, P 7.01
YES
8.60 C, N, L, P 7.82 YES
8.70 C, N, L, P 7.82
YES
9.45 L, C 8.64
YES
88.90(3 1/2" ) 9.20 H, J, C, N, L, P 6.45 YES
9.30 H, J, C, N, L, P 6.45
YES
10.20 H, J, C, N, L 7.34 YES
12.70 C, N, L, P 9.52 YES YES
12.95 L, P 9.52
YES
101.60(4" ) 9.50 H, J, C, N, L 5.74 YES
11.00 H, J, C, N, L 6.65
YES
114.30(4 1/2" ) 12.60 H, J, L, N, C, T 12.75 YES
12.75 H, J, L, N, C, T 12.75
YES

Related Names
Petroleum Drilling Pipe | Drill Stem Pipe | API 5CT Tubing

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