API Spec 5CT Seamless Tubing pipes

Product Description

The tubing is divided into flat tubing (NU), thickened tubing (EU) and integral joint tubing (I). Flat tubingmeans that the end of the tubing is directly threaded and coupled without thickening. Thickened tubingrefers to the two ends after external thickening, then the car threads and with coupling. Integral jointtubing refers to one end through the internal thickening of the external threads of the vehicle, the othelend through the external thickening of the internal threads of the vehicle, directly connecting without coupling.
Function of tubing: oil and gas extraction: After completion of well drilling and cementing, the tubing isolaced in the casing of the reservoir to extract oil and gas to the surface. Water injection: When thedownhole pressure is insufficient, water is injected into the well through the tubing. Steam injection: In theprocess of heavy oil thermal recovery, heat insulation tubing is used to input steam into the well.Acidification and fracturing: In order to improve the production of oil and gas wells in the late stage ofwell drilling. acidizing and fracturina media or fixed-line substances need to be input into the reservoirand the media or solidified substances are transported through the tubing.

Product Specification

Sizes					Weight				Type of end
1	2				NU kg/m	EU kg/m	IJkg/m
	NU	EU	IJ
									H40	J55	L80	N80	C90	T95	P110
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
2-3/8 2-3/8 2-3/8 2-3/8 2-3/8	4.00 4.60 5.80 6.60 7.35	- 4.70 5.95 - 7.45	- - - - -	60.32 60.32 60.32 60.32 60.32	5.95 6.85 8.63 9.82 10.94	- 6.99 8.85 - 11.09	- - - - -	4.24 4.83 6.45 7.49 8.53	PU PNU - - -	PN PNU - - -	PN PNU PNU P PU	PN PNU PNU - -	PN PNU PNU P PU	PN PNU PNU P PU	- PNU PNU - -
2-7/8 2-7/8 2-7/8 2-7/8 2-7/8 2-7/8	6.40 7.80 8.60 9.35 10.50 11.50	6.50 7.90 8.70 9.45 - -	- - - - - -	73.02 73.02 73.02 73.02 73.02 73.02	9.52 11.61 12.80 13.91 15.63 17.11	9.67 11.76 12.95 14.06 - -	- - - - - -	5.51 7.01 7.82 8.64 9.96 11.18	PNU - - - - -	PNU - - - - -	PNU PNU PNU PU P P	PNU PNU PNU - - -	PNU PNU PNU PU P P	PNU PNU PNU PU P P	PNU PNU PNU - - -
3-1/2 3-1/2 3-1/2 3-1/2 3-1/2 3-1/2 3-1/2	7.70 9.20 10.20 12.70 14.30 15.50 17.00	- 9.30 - 12.95 - - -	- - - - - - -	88.90 88.90 88.90 88.90 88.90 88.90 88.90	11.46 13.69 15.18 18.90 21.28 23.07 25.30	- 13.84 - 19.27 - - -	- - - - - - -	5.49 6.45 7.34 9.52 10.92 12.09 13.46	PN PNU PN - - - -	PN PNU PN - - - -	PN PNU PN PNU P P P	PN PNU PN PNU - - -	PN PNU PN PNU P P P	PN PNU PN PNU P P P	- PNU - PNU - - -

Sizes				OD D mm	Weight			wt t mm	Type of end
1	2				NU kg/m	EU kg/m	IJ kg/m
	NU	EU	IJ
									H40	J55	L80	N80	C90	T95	P110
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
4 4 4 4 4 4	9.50 10.70 13.20 16.10 18.90 22.20	- 11.00 - - - -	- - - - - -	101.60 101.60 101.60 101.60 101.60 101.60	14.14 - 19.64 23.96 28.13 33.04	- 16.37 - - - -	- - - - - -	5.74 6.65 8.38 10.54 12.70 15.49	PN PU - - - -	PN PU - - - -	PN PU P P P P	PN PU - - - -	PN PU P P P P	PN PU P P P P	- - - - - -
4-1/2 4-1/2	12.60 15.20	12.75 -	- -	114.30 114.30	18.75 22.62	18.97 -	- -	6.88 8.56	PNU -	PNU -	PNU P	PNU -	PNU P	PNU P	- -
4-1/2 4-1/2 4-1/2 4-1/2 4-1/2	17.00 18.90 21.50 23.70 26.10	- - - - -	- - - - -	114.30 114.30 114.30 114.30 114.30	25.30 28.13 32.00 35.27 38.84	- - - - -	- - - - -	9.65 10.92 12.70 14.22 16.00	- - - - -	- - - - -	P P P P P	- - - - -	P P P P P	P P P P P	- - - - -
P—Plain end;N—Non-upset threaded and coupled;U—External upset threaded and coupled;I—insert joint.

Note: other premium connection shall be provided as per customer requirements.

Oil Casing Pipe

PRODUCT SPECIFICATION
1.Specification Range:Outer Diameter:114.3MM-508MM(41/2"-20) Wall Thickness:5.21MM-16.13MM(9.5PPF-133PPF)
2.Material:H40,J55,K55,N80-1,N80-Q,L80-1,L80-9Cr,L80-13Cr, P110,Q125,etc.
3.Implementation criteria: API 5CT,GB,ISO 11960，GOST
4. Button Categories: STC, LTC, BTC, XC and Premium connection
5.Length: R1,R2, R3
6. Detection: NDT,etc. related rules of API 5CT and 5B
7. Type: Seamless Steel Pipe, Straight Seam Steel Pipe

Petroleum special pipes are mainly used for driling oil and gas wells and oil and gas transportation. Oil casing ismainly used to support the wellbore during drilling and after completion to ensure the normal operation of the wholewell. Oil casing is the lifeline to maintain oil well operation. Because of the different geological conditions, the stressstate of underground is complex, and the comprehensive action of tension, compression, bending and torsion stressesacts on the pipe body, which puts forward higher requirements for the quality of casing itself, Once the casing itself isdamaged for some reason, it may lead to production reduction or even abandonment of the whole wel

Product Specification

Sizes		ODDmm	Weightkg/m	WTtmm	Type of end
					H40	J55K55	M65	L80C95	N801.Q	C90T95	P110	Q125
1	2
1	2	3	4	5	6	7	8	9	10	11	12	13
4-1/2 4-1/2 4-1/2 4-1/2 4-1/2	9.50 10.50 11.60 13.50 15.10	114.30 114.30 114.30 114.30 114.30	14.14 15.63 17.26 20.09 22.47	5.21 5.69 6.35 7.37 8.56	PS- - - -	PSPSB PSLB - -	PSPSB PLB PLB -	- - PLB PLB -	- - PLB PLB -	- - PLB PLB -	- - PLB PLB PLB	- - - - PLB
55 5 5 5 5 5	11.50 13.00 15.00 18.00 21.40 23.20 24.10	127.00 127.00 127.00 127.00 127.00 127.00 127.00	17.1119.35 22.32 26.79 31.85 34.53 35.86	5.596.43 7.52 9.19 11.10 12.14 12.70	- - - - - - -	PSPSLB PSLBE - - - -	PSPSLB PLB PLB PLB - -	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - PLBE PLBE PLB PLB PLB	- - - PLBE PLB PLB PLB
5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/25-1/2	14.00 15.50 17.00 20.00 23.00 26.80 29.70 32.60 35.30 38.00 40.50 43.10	139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70 139.70	20.83 23.07 25.30 29.76 34.23 39.88 44.20 48.51 52.53 56.55 60.27 64.14	6.20 6.98 7.72 9.17 10.54 12.70 14.27 15.88 17.45 19.05 20.62 22.22	PS - - - - - - - - - - -	PSPSLBE PSLBE - - - - - - - - -	PSPSLB PLB PLB PLB - - - - - - -	- - PLBE PLBE PLBE - - - - - - -	- - PLBE PLBE PLBE - - - - - - -	- - PLBE PLBE PLBE P P P P P P P	- - PLBE PLBE PLBE - - - - - - -	- - - - PLBE - - - - - - -
6-5/8 6-5/8 6-5/8 6-5/8	20.00 24.00 28.00 32.00	168.28 168.28 168.28 168.28	29.76 35.72 41.67 47.62	7.32 8.94 10.59 12.06	PS - - -	PSLB PSLBE - -	PSLB PLB PLB -	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- PLBE PLBE PLBE	- - - PLBE
7 7 7 7 7 7 7	17.00 20.00 23.00 26.00 29.00 32.00 35.00	177.80 177.80 177.80 177.80 177.80 177.80 177.80	25.30 29.76 34.23 38.69 43.16 47.62 52.09	5.87 6.91 8.05 9.19 10.36 11.51 12.65	PSPS - - - - -	- PS PSLBE PSLBE - - -	- PS PLB PLB PLB PLB -	- - PLBE PLBE PLBE PLBE PLBE	- - PLBE PLBE PLBE PLBE PLBE	- - PLBE PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - - - - - PLBE
7 7 7 7 7 7	38.00 42.70 46.40 50.10 53.60 57.10	177.80 177.80 177.80 177.80 177.80 177.80	56.55 63.54 69.05 74.56 79.77 84.97	13.72 15.88 17.45 19.05 20.62 22.22	- - - - - -	- - - - - -	- - - - - -	PLBE - - - - -	PLBE - - - - -	PLBE P P P P P	PLBE - - - - -	PLBE - - - - -
7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8 7-5/8	24.00 26.40 29.70 33.70 39.00 42.80 45.30 47.10 51.20 55.30	193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68 193.68	35.72 39.29 44.20 50.15 58.04 63.69 67.41 70.09 76.19 82.30	7.62 8.33 9.52 10.92 12.70 14.27 15.11 15.88 17.45 19.05	PS - - - - - - - - -	- PSLBE- - - - - - - -	- PSLB PLB PLB - - - - - -	- PLBE PLBE PLBE PLBE PLBE PLBE PLB - -	- PLBE PLBE PLBE PLBE PLB PLB PLB - -	- PLBE PLBE PLBE PLBE PLB PLB PLB p P	- - PLBE PLBE PLBE PLB PLB PLB - -	- - - - PLBE PLB PLB PLB - -
7-3/4	46.10	196.85	68.60	15.11	-	-	-	P	P	P	P	P
8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8 8-5/8	24.00 28.00 32.00 36.00 40.00 44.00 49.00	219.08 219.08 219.08 219.08 219.08 219.08 219.08	35.72 41.67 47.62 53.57 59.53 65.48 72.92	6.71 7.72 8.94 10.16 11.43 12.70 14.15	- PS PS - - - -	PS - PSLBE PSLBE - - -	PSPS PSLB PSLB PLB - -	- - - PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - PLBE PLBE PLBE PLBE	- - - - PLBE PLBE PLBE	- - - - - PLBE
9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8 9-5/8	32.30 36.00 40.00 43.50 47.00 53.50 58.4059.40 64.90 70.30 75.60	244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48 244.48	48.07 53.57 59.53 64.73 69.94 79.62 86.91 88.40 96.58 104.62 112.50	7.92 8.94 10.03 11.05 11.99 13.84 15.11 15.47 17.07 18.64 20.24	PS PS - - - - - - - - -	- PSLB PSLBE - - - - - - - -	- PSLB PSLB PLB PLB - - - - -	- - PLBE PLBE PLBE PLBE PLB - - - -	- - PLBE PLBE PLBE PLBE PLB - - - -	- - PLBE PLBE PLBE PLBE PLB P P P P	- - - PLBE PLBE PLBE PLB - - - -	- - - - PLBE PLBE PLB - - - -
10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4 10-3/4	32.75 40.50 45.50 51.00 55.50 60.70 65.70	273.05 273.05 273.05 273.05 273.05 273.05 273.05	48.74 60.27 67.71 75.90 82.59 90.33 97.77	7.09 8.89 10.16 11.43 12.57 13.84 15.11	PS PS - - - - -	- PSB PSBE PSBE - - -	- PSB PSB PSB PSB - -	- - - PSBE PSBE - -	- - - PSBE PSBE - -	- - - PSBE PSBE PSBE PSB	- - - PSBE PSBE PSBE PSB	- - - - - PSBE PSB
10-3/4 10-3/4 10-3/4	73.20 79.20 85.30	273.05 273.05 273.05	108.93 117.86 126.94	17.07 18.64 20.24	- - -	- - -	- - -	- - -	- - -	P P P	- - -	- - -
11-3/4 11-3/4 11-3/4 11-3/4 11-3/4 11-3/4	42.00 47.00 54.00 60.00 65.00 71.00	298.45 298.45 298.45 298.45 298.45 298.45	62.50 69.94 80.36 89.29 96.73 105.66	8.46 9.53 11.05 12.42 13.56 14.78	PS - - - - -	- PSB PSB PSB - -	- PSB PSB PSB - -	- - - PSB P P	- - - - PSB P P	- - - PSB P P	- - - PSB P P	- - - PSB P P
13-3/8 13-3/8 13-3/8 13-3/8 13-3/8	48.00 54.50 61.00 68.00 72.00	339.72 339.72 339.72 339.72 339.72	71.43 81.10 90.78 101.19 107.15	8.38 9.65 10.92 12.19 13.06	PS - - - -	- PSB PSB PSB -	- PSB PSB PSB -	- - - PSB PSB	- - - PSB PSB	- - - PSB PSB	- - - PSB PSB	- - - - PSB
16 16 16 16	65.00 75.00 84.00 109.00	406.40 406.40 406.40 406.40	96.73 111.61 125.01 162.21	9.53 11.13 12.57 16.66	PS - - -	- PSB PSB P	- PSB PSB -	- - - P	- - - P	- - - -	- - - P	- - - P
18-5/8	87.50	473.08	130.21	11.05	PS	PSB	PSB	-	-	-	-	-
20 20 20	94.00 106.50 133.00	508.00 508.00 508.00	139.89 158.49 197.93	11.13 12.70 16.13	PSL - -	PSLB PSLB PSLB	PSLB PSLB -	- - -	- - -	- - -	- - -	- - -
Remarks: P——Plain end;S—Short round thread;L—Long round thread;B—Buttress thread;E—Extreme-line.

Sizes				OD D mm	Weight			wt t mm	Type of end
1	2				NU kg/m	EU kg/m	IJ kg/m
	NU	EU	IJ
									H40	J55	L80	N80	C90	T95	P110
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
4 4 4 4 4 4	9.50 10.70 13.20 16.10 18.90 22.20	- 11.00 - - - -	- - - - - -	101.60 101.60 101.60 101.60 101.60 101.60	14.14 - 19.64 23.96 28.13 33.04	- 16.37 - - - -	- - - - - -	5.74 6.65 8.38 10.54 12.70 15.49	PN PU - - - -	PN PU - - - -	PN PU P P P P	PN PU - - - -	PN PU P P P P	PN PU P P P P	- - - - - -
4-1/2 4-1/2	12.60 15.20	12.75 -	- -	114.30 114.30	18.75 22.62	18.97 -	- -	6.88 8.56	PNU -	PNU -	PNU P	PNU -	PNU P	PNU P	- -
4-1/2 4-1/2 4-1/2 4-1/2 4-1/2	17.00 18.90 21.50 23.70 26.10	- - - - -	- - - - -	114.30 114.30 114.30 114.30 114.30	25.30 28.13 32.00 35.27 38.84	- - - - -	- - - - -	9.65 10.92 12.70 14.22 16.00	- - - - -	- - - - -	P P P P P	- - - - -	P P P P P	P P P P P	- - - - -
P—Plain end;N—Non-upset threaded and coupled;U—External upset threaded and coupled;I—insert joint.

Note: other premium connection shall be provided as per customer requirements.