API 5CT Tubing

Tubing is pipe used for the transportation of crude oil and natural gas from an oil or gas layer to the surface after drilling is complete. It is made to withstand the pressure generated from the extraction process. Tubing is manufactured in the same way as casing, except that an additional process known as "upsetting" is applied to thicken the pipes. The tubing production processing is similar to the process of casing production.

Tubing pipes typically have diameters of 26.67 mm to 114.3 mm.

Procedures and Standards.

Size				Grade							Standard
OD mm(in)	Wt mm	Nominal weight per unit length ( with thread and coupling )kg/m		Grade							Standard
OD mm(in)	Wt mm	NUE	EUE	H40	J55	L80	N80 --- 1 类、 Q	C90	T95	P110
26.67(1.050)	2.87	1.70	1.79	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U		API 5CT-2005
26.67(1.050)	3.91			P/U	P/U	P/U	P/U	P/U	P/U	P/U
33.40(1.315)	3.38	2.53	2.68	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
33.40(1.315)	4.55	3.26	3.33	P/U	P/U	P/U	P/U	P/U	P/U	P/U
42.16(1.660)	3.18			P	P
	3.56	3.42	3.57	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	4.85	4.51	4.57	P/U	P/U	P/U	P/U	P/U	P/U	P/U
48.26(1.900)	3.18			P	P
	3.68	4.09	4.32	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	5.08	5.43	5.55	P/U	P/U	P/U	P/U	P/U	P/U	P/U
	6.35	6.58				P		P	P
	7.62	7.66				P		P	P
52.40(2.063)	3.96			P	P	P	P	P	P
52.40(2.063)	5.72			P	P	P	P	P	P	P
60.32(2-3/8)	4.24	5.95		P/U	P/N	P/N	P/N	P/N	P/N
	4.83	6.85	6.99	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	6.45	8.63	8.85			P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	7.49	9.82				P		P	P
	8.53	10.94	11.09			P/U		P/U	P/U
73.02(2-7/8)	5.51	9.52	9.67	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	7.01	11.61	11.76			P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	7.82	12.80	12.95			P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	8.64	13.91	14.06			P/U		P/U	P/U
	9.96	15.63				P		P	P
	11.18	17.11				P		P	P
88.90(3-1/2)	5.49	11.46		P/U	P/N	P/N	P/N	P/N	P/N
	6.45	13.69	13.84	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	7.34	15.18		P/N	P/N	P/N	P/N	P/N	P/N
	9.52	18.90	19.27			P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	10.92	21.28				P		P	P
	12.09	23.07				P		P	P
	13.46	25.30				P		P	P
101.60(4)	5.74	14.14		P/N	P/N	P/N	P/N	P/N	P/N
	6.65		16.37	P/U	P/U	P/U	P/U	P/U	P/U
	8.38	19.64				P		P	P
	10.54	23.96				P		P	P
	12.70	28.13				P		P	P
	15.49	33.04				P		P	P
114.30(4-1/2 ）	6.88	18.75	18.97	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U	P/N/U
	8.56	22.62				P		P	P
	9.65	25.30				P		P	P
	10.92	28.13				P		P	P
	12.70	32.00				P		P	P
	14.22	35.27				P		P	P
	16.00	38.84				P		P	P
Note ： P- Plain End、 N- NUE with thread and coupling、 U- EUE with thread and coupling