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Tubing Dimensions: 1.05” to 4-1/2” with End Processing Forms NU (Non-Upset) and EU (Upset) 
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2.
Petroleum Tubing: Specifications 1.05”-4-1/2” with End Processing Forms NU
(Non-Upset) and EU (Upset)
Petroleum
tubing is one of the essential devices in the process of oil extraction and
transportation. Its main function is to transport oil and natural gas from
underground to the surface. At present, the common specifications of petroleum
tubing on the market range from 1.05 inches to 4-1/2 inches, which can meet the
extraction requirements of different oil wells. There are mainly two types of
end processing forms for tubing: NU (Non-Upset) and EU (Upset). The NU end
processing form refers to no additional thickening treatment at the end of the
tubing. The advantage of this processing form is the lower cost, which is
suitable for some wells with lower strength requirements. The EU end processing
form, on the other hand, involves thickening the end of the tubing, which can
greatly increase the tensile and torsional strength of the tubing, enabling it
to better adapt to high-pressure and complex downhole environments.
Different
specifications and end processing forms of tubing have their own
characteristics in practical applications. For example, the small-diameter
tubing of 1.05 inches is usually used in some small oil and gas wells. Its
smaller diameter can reduce drilling costs, and in some areas with better
geological conditions, this specification of tubing can also meet the
extraction requirements. The large-diameter tubing of 4-1/2 inches is mainly
used for the extraction of large oil wells and deep wells, which need to
withstand greater pressure and flow. Therefore, the requirements for the
strength and sealing of the tubing are higher. When selecting petroleum tubing,
users need to make decisions based on the specific conditions of the oil well.
For example, in some oil wells containing corrosive gases, tubing with
anti-corrosion coatings should be selected; in high-pressure oil wells, tubing
with the EU end processing form should be chosen. In addition, the material of
the tubing is also very important. Common materials include carbon steel, alloy
steel, etc., and there are differences in performance and cost for tubing made
of different materials.
The
manufacturing process of petroleum tubing is also very strict and involves
multiple procedures, including inspection of raw materials, formation of the
tube body, end processing, and quality inspection. Each procedure must be
carried out strictly in accordance with national and industry standards to
ensure the quality and performance of the tubing. With the continuous progress
of science and technology, the manufacturing technology of petroleum tubing is
also constantly innovating. In the future, more high-performance and
high-reliability tubing products will be introduced to the market, providing
strong support for the sustainable development of the oil industry.
Welcome
to the Online Store of Tianjin Longkailai Petroleum Equipment Co., Ltd.
Specifications:
1.05”-4-1/2” with end processing forms NU (Non-Upset) and EU (Upset)
Execution
Standards: API-5CT, API-5L, API-5B, API 5D
Company
Products: Tubing couplings, tubing collars, thickened tubing couplings, flush
joint tubing couplings, variable thread tubing couplings, extended tubing
couplings, single-end threaded tubing couplings, internal thread tubing
couplings, tubing connectors, variable thread tubing connectors, variable
diameter tubing couplings, tubing conversion connectors, tubing coupling stock,
tubing nipples, tubing short sections, thickened tubing nipples, tubing lifting
nipples, double male tubing nipples, heavy-weight tubing nipples/short
sections, lifting tubing nipples/short sections, variable thread tubing
nipples/short sections, variable diameter tubing short sections/nipples, tubing
conversion connectors, single-end threaded tubing nipples, coupling stock,
thickened tubing, EUE thickened petroleum tubing, high-pressure tubing nipples,
[casing short sections], [casing nipples], [double male casing short sections],
[double male casing nipples], [casing variable thread couplings], [casing
variable thread connectors], [external thread casing nipples/short sections],
[casing conversion connectors], [high-pressure casing nipples], [casing thread
protectors (cap)], [casing coupling stock], [finished casing products], casing
couplings, coupling stock, short round thread casing couplings, long round
casing couplings, tapered casing couplings, variable thread casing couplings,
casing connectors, casing collars, variable diameter casing couplings,
eccentric casing couplings, casing conversion connectors, API casing,
single-end threaded casing couplings, coupling stock.
Casing
Specifications: 4-1/2”-20” with thread types such as STC (Short Round), LTC
(Long Round), BTC (Trapezoidal Thread), etc.
Tubing
Specifications: 1.05”-4-1/2” with end processing forms NU (Non-Upset) and EU
(Upset).
Custom
Processing: We can process couplings, nipples, variable thread connectors,
etc., in various lengths and sizes according to order drawings.
Processing
Forms: Straight connection tubing nipples/connectors, PIN * PIN (double male
nipples), PIN * BOX (one male one female finished nipples), BOX * PIN (one
female one male finished nipples).
Materials:
H40, J55, K55, N80, L80, C-90, C95, T95, P110, Q125, 13Cr-80, 13Cr-110, Super
13Cr, Nickel-based alloy tubing, etc.
Drill
Pipe Specifications: 2-3/8”-6-5/8”, etc.
Thickening
Forms: Internal thickening, external thickening, internal and external
thickening. Custom-made products such as drill pipe variable thread connectors,
drill pipe nipples, double male drill pipe nipples, and drill pipe conversion
connectors in various lengths according to orders or drawings.
Materials:
E-75, X95, G105, S135, etc.
Company
Philosophy: We adhere to the management philosophy of people-oriented and
customer-first. Based on advanced equipment and scientific management, we
provide high-quality products for customers. With a complete marketing network
and service system, we ensure satisfactory service for customers. Let's join
hands to create a brilliant future!
Dimensions, tolerances and masses of
API Buttress thread casing coupling
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代号1 Label 1
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规格a Size
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外径 Outside diameter
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最小 长度 Mini -mum length
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镗孔直径 Diameter of Counter -bore
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承载面 宽度 Width of bearing face
|
重量 Mass kg |
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外径 Outside diameter
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标准 接箍 Regular
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特殊间隙接箍 Special clearance
|
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D mm |
W mm |
WC mm |
NL mm |
Q mm |
b mm |
标准接箍 Regular
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特殊间隙 接箍 Special clearance
|
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
|
4-1/2 5 5-1/2 6-5/8 7 7-5/8 8-5/8 9-5/8 10-3/4 11-3/4 13-3/8 16 18-5/8 20 |
114.30 127.00 139.70 168.28 177.80 193.68 219.08 244.48 273.05 298.45 339.72 406.40 473.08 508.00 |
127.00 141.30 153.67 187.71 194.46 215.90 244.48 269.88 298.45 323.85 365.12 431.80 508.00 533.40 |
123.82 136.52 149.22 177.80 187.32 206.38 231.78 257.18 285.75 - - - - - |
225.42 231.78 234.95 244.48 254.00 263.52 269.88 269.88 269.88 269.88 269.88 269.88 269.88 269.88 |
117.86 130.56 143.26 171.83 181.36 197.23 222.63 248.03 276.61 302.01 343.28 410.31 476.99 511.91 |
3.18 3.97 3.97 6.35 5.56 7.94 9.52 9.52 9.52 9.52 9.52 9.52 9.52 9.52 |
4.55 5.85 6.36 11.01 10.54 15.82 20.86 23.16 25.74 28.03 31.77 40.28 62.68 50.10 |
3.48 4.00 4.47 5.65 6.28 9.29 10.80 12.02 13.39 - - - - - |
|
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对于第1、2和3组，外径W的公差为±1%，但不大于±3.18mm。 1 % but not larger Groups 1, 2 and 3 — Tolerance on outside diameter W is ± 3,18 mm. than ±对于第4组，外径W的公差为±1%，但不大于+3.18 –1.59mm。 Group 4 — Tolerance on outside diameter W, is ±1 % but not larger than +3.18 –1.59mm. a. 接箍的规格代号和相应的管子规格代号相同。 The coupling specification label is the same as the corresponding pipe specification label. |
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