Unthickened tubing size and weight

When it comes to size and Weight of non-thickened Oil casing, it is important to have a clear understanding of the specifications to ensure proper installation and operation. Oil casing is an important part of the Oil and gas industry as it is used to line the walls of wells to prevent the surrounding soil or rock from collapsing and allow the extraction of oil or gas. In this blog, we will discuss the size and weight of unthickened oil casing and how these factors affect its performance.

The size of non-thickened oil casing can vary depending on the specific requirements of the well and the type of oil or gas being extracted. Typically, unthickened oil casing ranges from 30 to 45 feet in Length and 4.5 to 20 inches in Diameter. The weight of non-thickened oil casing is also an important factor to consider as it affects ease of transportation and installation. The weight of unthickened oil casing ranges from 15 to 100 pounds per foot, depending on the diameter and thickness of the casing.

Dimensions and Masses for standard Tubing and for Tubing Threaded with  API Non-upset
external Upset, and Integral Tubing connections
Labels a										Calculated Mass c
				Outside Diameter	Nominal Linear Masses b, c			Wall thickness	Inside Diameter	Plain- end	em, Mass Gain or Loss Due to End Finishing d
											kg
	2				Non- upset T&C kg/m	External Upset T&C kg/m	Integral Joint					External Upset e
				D			kg/m	t	d	wpe
1	NU	EU		mm				mm	mm	kg/m	Non- upset		special Clearance	Integral Joint
	T&C	T&C	IJ									Regular
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
1.05	1.14	1.2	—	26.67	1.7	1.79	—	2.87	20.93	1.68	0.09	0.64	—	—
1.05	1.48	1.54	—	26.67	2.2	2.29	—	3.91	18.85	2.19	—	0.6	—	—
1.315	1.7	1.8	1.72	33.4	2.53	2.68	2.56	3.38	26.64	2.5	0.18	0.64	—	0.09
1.315	2.19	2.24	—	33.4	3.26	3.33	—	4.55	24.3	3.24	—	0.61	—	—
1.66	2.09	—	2.1	42.16	—	—	3.13	3.18	35.8	3.06	—	—	—	0.09
1.66	2.3	2.4	2.33	42.16	3.42	3.57	3.47	3.56	35.04	3.39	0.36	0.73	—	0.09
1.66	3.03	3.07	—	42.16	4.51	4.57	—	4.85	32.46	4.46	—	0.68	—	—
1.9	2.4	—	2.4	48.26	—	—	3.57	3.18	41.9	3.54	—	—	—	0.09
1.9	2.75	2.9	2.76	48.26	4.09	4.32	4.11	3.68	40.9	4.05	0.27	0.91	—	0.09
1.9	3.65	3.73	—	48.26	5.43	5.55	—	5.08	38.1	5.41	—	0.92	—	—
1.9	4.42	—	—	48.26	6.58	—	—	6.35	35.56	6.56	—	—	—	—
1.9	5.15	—	—	48.26	7.66	—	—	7.62	33.02	7.64	—	—	—	—
2.063	3.24	—	3.25	52.4	—	—	4.84	3.96	44.48	4.73	—	—	—	0.09
2.063	4.5	—	—	52.4	—	—	—	5.72	40.96	6.58	—	—	—	—
2 3/8	4	—	—	60.32	5.95	—	—	4.24	51.84	5.86	0.73	—	—	—
2 3/8	4.6	4.7	—	60.32	6.85	6.99	—	4.83	50.66	6.61	0.73	1.81	1.34	—
2 3/8	5.8	5.95	—	60.32	8.63	8.85	—	6.45	47.42	8.57	0.64	1.63	1.16	—
2 3/8	6.6	—	—	60.32	9.82	—	—	7.49	45.34	9.76	—	—	—	—
2 3/8	7.35	7.45	—	60.32	10.94	11.09	—	8.53	43.26	10.89	—	—	—	—
Labels a										Calculated Mass c
				Outside Diameter	Nominal Linear Masses b, c			Wall Thickness	Inside Diameter	Plain- end	em, Mass Gain or Loss Due to End Finishing d
											kg
	2				Non- upset T&C kg/m	External Upset T&C kg/m	Integral Joint					External Upset e
				D			kg/m	t	d	wpe
1	NU	EU		mm				mm	mm	kg/m	Non- upset		Special Clearance	Integral Joint
	T&C	T&C	IJ									Regular
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
2 7/8	6.4	6.5	—	73.02	9.52	9.67	—	5.51	62	9.17	1.45	2.54	1.71	—
2 7/8	7.8	7.9	—	73.02	11.61	11.76	—	7.01	59	11.41	1.27	2.63	1.78	—
2 7/8	8.6	8.7	—	73.02	12.8	12.95	—	7.82	57.78	12.57	1.18	2.27	1.43	—
2 7/8	9.35	9.45	—	73.02	13.91	14.06	—	8.64	54.74	13.72	—	—	—	—
2 7/8	10.5	—	—	7302	15.67	—	—	9.96	53.1	15.49	—	—	—	—
2 7/8	11.5	—	—	73.02	17.11	—	—	11.18	50.66	17.05	—	—	—	—
3 1/	7.7	— 9.30	—	88.9	11.46	— 13.84	—	5.49	77.92	11.29	2.45	— 4.17	— 2.45	—
2	9.2	— 12.95	—	88.9	13.69	— 19.27	—	6.45	76	13.12	2.27	— 3.72	— 2.00	—
3 1/	10.2	—	—	88.9	15.18	—	—	7.34	74.22	14.76	2.18	—	—	—
2	12.7	—	—	88.9	18.9	—	—	9.52	69.86	18.64	1.81	—	—	—
3 1/	14.3	—	—	88.9	21.28	—	—	10.92	67.06	21	—	—	—	—
2	15.5		—	88.9	27.07		—	12.09	64.72	22.9	—			—
3 1/	17		—	88.9	25.7		—	13.46	61.98	25.04	—			—
2
3 1/
2
3 1/
2
3 1/
2
4	9.5	—	—	101.6	14.14	—	—	5.74	90.12	13.57	2.81	—	—	—
4	10.7	11	—	101.6	—	16.37	—	6.65	88.3	15.57	—	4.81	—	—
4	13.2	—	—	101.6	19.64	—	—	8.38	84.84	19.27	—	—	—	—
4	16.1	—	—	101.6	23.96	—	—	10.54	80.52	23.67	—	—	—	—
4	18.9	—	—	101.6	28.13	—	—	12.7	76.2	27.84	—	—	—	—
4	22.2	—	—	101.6	33.04	—	—	15.49	70.62	32.89	—	—	—	—
Labels a										Calculated Mass c
				Outside Diameter	Nominal Linear Masses b, c			Wall Thickness	Inside Diameter	Plain- end	em, Mass Gain or Loss Due to End Finishing d
											kg
	2				Non- upset T&C kg/m	External Upset T&C kg/m	Integral Joint					External Upset e
				D			kg/m	t	d	wpe
1	NU	EU		mm				mm	mm	kg/m	Non- upset		Special Clearance	Integral Joint
	T&C	T&C	IJ									Regular
1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
4 1/2	12.6	12.75	—	114.3	18.75	18.97	—	6.88	100.54	18.23	2.72	—	—	—
4 1/2	15.2	—	—	114.3	22.62	—	—	8.56	97.18	22.32	—	—	—	—
4 1/2	17	—	—	114.3	25.3	—	—	9.65	95	24.9	—	—	—	—
4 1/2	18.9	—	—	114.3	28.13	—	—	10.92	92.46	27.84	—	—	—	—
4 1/2	21.5	—	—	114.3	32	—	—	12.7	88.9	31.82	—	—	—	—
4 1/2	23.7	—	—	114.3	35.27	—	—	14.22	85.86	35.1	—	—	—	—
4 1/2	26.1	—	—	114.3	38.84	—	—	16	82.3	38.79	—	—	—	—
NOTE See also Figures D.4, D.5, and D.7.
a Labels are for information and assistance in ordering.
b Nominal linear masses (Columns 6, 7, and 8) are shown for information only.
c The densities of martensitic chromium ( L80 Types 9Cr and 13Cr) are different from carbon steels; The masses shown are therefore not accurate for martensitic chromium steels. A mass correction factor of 0.989 shall be used.
d Mass gain or loss due to end finishing; See 8.5.
e The length of the upset may alter the mass gain or loss due to end finishing.

When considering the size and weight of unthickened oil casing, one of the key considerations is the type of material used. Steel is the most commonly used oil casing material because it provides the necessary strength and durability to withstand the harsh conditions of drilling and production. The size and weight of non-thickened oil casing will vary depending on the grade and specification of steel used, so it is important to consult a professional to determine the best option for your specific needs.

In addition to the size and weight of non-upset oil casing, it is also important to consider the specifications of the threads and fittings. Threads and joints are key elements of oil casing as they allow multiple joints of the casing to be connected to form a continuous line within the well. The size and weight of non-thickened oil casing need to be compatible with specific thread and joint specifications to ensure a safe and reliable connection.

When selecting the size and weight of unthickened oil casing for a particular well, it is important to consider the specific requirements and environmental conditions of the drilling operation. Factors such as the depth of the well, the type of oil or gas being extracted, and the surrounding soil and rock formations all affect the size and weight of unthickened oil casing required for the operation. By carefully considering these factors and consulting with a qualified engineer or Supplier, you can ensure that the oil casing you choose will meet the specific needs of your well.

In summary, the size and weight of unthickened oil casing are important considerations in the oil and gas industry. By understanding the specific requirements and environmental conditions of your drilling operation, you can select the appropriate size and weight of unthickened oil casing to ensure a successful and reliable well. It is essential to work with a professional to determine the best option for your specific needs and to ensure proper installation and operation of oil casing.