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Tubing for oil transfer

Tubing is widely used for transporting crude oil and natural gas to surface after drilling, which also bears pressure from exploration.

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Tubing for oil transfer

Tubing is widely used for transporting crude oil and natural gas to surface after drilling, which also bears pressure from exploration.

Product Description

API 5CT Tubing( Eue tubing, Nue tubing/oil tube, oil pipe)

1.Production technology:Plain pipe-end upsetting- Austenite treatment-Quenching-Tempering-straightening-(Non-Destructive Testing)- Threading-Thread inspection-coupling MPI-phosphating-Coupling make up-Drifting-Hydrostatic testing-Measuring&Weight-Marking&Stenciling-Coating-Packing Casing and tubing-Transportation

2. Executive standards: API spec 5CT, API spec 5B

3. Specification range: 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2"

WT: 4.24-16mm

4. Materials: H40, J55, K55, N80, L80, C90,T95 and P110

5. T&C: EUE, NU,IJ and Special Coupled.

6. Length: R1, R2, R3

7. Testing: NDT etc related rules of API 5CT and 5B
8. Packing: By bundles, seaworthy packing.

9. Application:

Oil Tubing is widely used for transporting crude oil and natural gas to surface after drilling, which also bears pressure from exploration.

Technical parameters of Oil tubing

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
	NU	EU	IJ						H40	J55	L80	N80 1、Q Type	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
	NU	EU	IJ						H40	J55	L80	N80 1、Q Type	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.

Seamless steel tubings are precision-engineered cylindrical products renowned for their absence of welded joints, setting them apart from welded tubings and making them a preferred choice in industries demanding high performance and reliability. These tubings are crafted through a specialized manufacturing process that eliminates the weak points associated with seams, ensuring consistent strength and structural integrity across their entire length.

It begins with a solid billet, which is heated to extremely high temperatures to enhance its malleability. The heated billet is then pierced to form a hollow shell, which is subsequently rolled and stretched to achieve the desired dimensions. This seamless production method not only enhances the tubings' ability to withstand internal and external pressures but also allows for precise control over their wall thickness and diameter, meeting strict dimensional tolerances required by various applications.

They boast high tensile strength, enabling them to handle heavy loads and resist deformation even under extreme conditions. Their superior ductility allows for bending and shaping without compromising their structural integrity, making installation more flexible. Additionally, these tubings exhibit excellent corrosion resistance, especially when treated with protective coatings, which extends their service life in harsh environments such as chemical processing plants and marine settings.

In the automotive sector, they are employed in fuel injection systems, hydraulic lines, and suspension components, where their reliability and precision are crucial for vehicle performance and safety. The aerospace industry relies on them for critical applications like aircraft hydraulic systems and engine parts, as they can withstand the high pressures and temperatures encountered during flight. In the medical field, seamless steel tubings are used in surgical instruments and medical devices due to their biocompatibility and ability to maintain sterility. They also play a vital role in the energy sector, being used in oil and gas exploration, as well as in power generation plants for transporting steam and other fluids.

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Casing&tubing

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