tubing and casing coupling
2 year ago
Pipe type: API 5CT Casing and Tubing Couplings
Connection: Casing: LTC, STC, BTC, VAM. Tubing: NUE, EUE.
Standard & Grade : API 5CT, SY/T 6194, BS EN ISO 11960, NF M87-207, JIS G3439, IS:4270, H-40, J55, K-55, N-80, N80Q, C-75, L-80, C-90, T-95, P110, Q-125
API 5CT K55 LTC Casing Couplings, N80 BTC Casing Couplings Manufacturer, J55 BTC Casing Couplings Supplier, API 5CT L80 BTC Casing Mill, API 5CT K55 EUE Tubing Couplings, N80 NUE Tubing Couplings Manufacturer, J55 EUE Tubing Couplings Supplier, API 5CT L80 NUE Tubing Mill, Pup joint, Couplings, Crossover. API 5CT P110 LTC Casing Manufacturer in China,
Surface: Corrosion proofing water based paint;
Packing: Bundled or bulk , seaworthy packing or for the client's requirement
Usage: Tube for conveying gas, water, and oil in both and natural gas industries etc.
Application of API 5CT Couplings:
According to API 5CT standard, steel material used for making the pipe billet supplied shall be grain refining treatment. This steel shall contain one or more grain refining elements, such as a certain amount of aluminum, niobium, vanadium or titanium, so that the austenite grains of the steel Grain refinement.
• Pipes supplied shall be manufactured in seamless type or EW type.
• Couplings, coupling stock and coupling materials shall be in seamless.
• Cold drawn tubing pipe shall be properly heat treated, otherwise is not acceptable.
• Casing and tubing attachment materials shall be seamless pipe, unless other type stated on the order.
API 5CT is standard technical specifications for steel casing and tubing pipes used for oil wells in petroleum and natural gas industries.
Besides casing and tubing, it also includes pup joints, coupling stock, coupling material, and accessory materials, and establishes requirements for three product specification levels (PSL-1, PSL-2, and PSL-3). The requirements for PSL-1 are the basis of this standard.
Connections
API 5CT is applicable to following connections which complied with API SPEC 5B:
• SC: Short round thread casing
• LC: Long Round thread casing
• BC: Buttress thread casing
• NU: Non-upset tubing
• EU: External upset tubing
• IJ: Integral tubing connections
Groups of Grade
• Group 1: All casing and tubing in Grades with H, J, K, N and R
• Group 2: All casing and tubing in Grades with C, L, M and T
• Group 3: All casing and tubing in Grade P
• Group 4: All casing in Grade Q
API CASING COUPLINGS - SHORT THREAD (STC)
|
API Casing Couplings Short Thread |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
4-1/2 |
5.000 |
6.250 |
8.05 |
343 |
2716 |
|
5 |
5.563 |
6.500 |
10.18 |
210 |
2168 |
|
|
5-1/2 |
6.050 |
6.750 |
11.44 |
216 |
2501 |
|
|
6-5/8 |
7.390 |
7.250 |
19.97 |
115 |
2322 |
|
|
7 |
7.656 |
7.250 |
18.34 |
120 |
2231 |
|
|
7-5/8 |
8.500 |
7.500 |
26.93 |
80 |
2322 |
|
|
8-5/8 |
9.625 |
7.750 |
35.58 |
60 |
2132 |
|
|
9-5/8 |
10.625 |
7.750 |
39.51 |
50 |
2006 |
|
|
10-3/4 |
11.750 |
8.000 |
49.61 |
45 |
2079 |
|
|
11-3/4 |
12.750 |
8.000 |
50.49 |
35 |
1767 |
|
|
13-3/8 |
14.375 |
8.000 |
56.23 |
25 |
1436 |
|
|
16 |
17.000 |
9.000 |
78.98 |
20 |
- |
|
|
18-5/8 |
20 |
9.000 |
118.94 |
10 |
- |
|
|
20 |
21.000 |
9.000 |
98.25 |
10 |
- |
API CASING COUPLINGS - LONG THREAD (LTC)
|
API Casing Couplings Long Thread |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
4-1/2 |
5.000 |
7.000 |
9.07 |
294 |
2697 |
|
5 |
5.563 |
7.750 |
12.56 |
210 |
2573 |
|
|
5-1/2 |
6.050 |
8.000 |
14.03 |
180 |
2555 |
|
|
6-5/8 |
7.390 |
8.750 |
24.82 |
100 |
2315 |
|
|
7 |
7.656 |
9.000 |
23.67 |
100 |
2351 |
|
|
7-5/8 |
8.500 |
9.250 |
34.23 |
80 |
2807 |
|
|
8-5/8 |
9.625 |
10.000 |
47.48 |
48 |
2337 |
|
|
9-5/8 |
10.625 |
10.500 |
55.77 |
40 |
2302 |
|
|
10-3/4 |
11.750 |
* 10.500 |
* 62.38 |
45 |
* 36 |
|
|
11-3/4 |
12.750 |
* 10.500 |
* 67.59 |
30 |
* 24 |
|
|
13-3/8 |
14.375 |
* 10.500 |
* 76.63 |
25 |
* 20 |
|
|
16 |
17.000 |
* 11.000 |
* 96.55 |
20 |
* 16 |
|
|
18-5/8 |
20.000 |
- |
- |
10 |
8 |
|
|
20 |
21.000 |
* 11.500 |
* 126.74 |
10 |
8 |
|
|
* NOT API SPECIFICATIONS. |
||||||
API CASING COUPLINGS - BUTTRESS THREAD (BTC)
|
API Casing Couplings Buttress Thread |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
4-1/2 |
5.000 |
8.875 |
10.11 |
196 |
2007 |
|
5 |
5.563 |
9.125 |
12.99 |
144 |
2840 |
|
|
5-1/2 |
6.050 |
9.250 |
14.14 |
144 |
2061 |
|
|
6-5/8 |
7.390 |
9.625 |
24.46 |
92 |
2295 |
|
|
7 |
7.656 |
10.000 |
23.22 |
80 |
2068 |
|
|
7-5/8 |
8.500 |
10.375 |
64.84 |
64 |
2221 |
|
|
8-5/8 |
9.625 |
10.625 |
45.94 |
48 |
2414 |
|
|
9-5/8 |
10.625 |
10.625 |
50.99 |
40 |
2256 |
|
|
10-3/4 |
11.750 |
10.625 |
56.68 |
36 |
2307 |
|
|
11-3/4 |
12.750 |
10.625 |
61.74 |
24 |
2179 |
|
|
13-3/8 |
14.375 |
10.625 |
69.95 |
20 |
1429 |
|
|
16 |
17.000 |
10.625 |
87.56 |
16 |
- |
|
|
18-5/8 |
20.000 |
10.625 |
138.03 |
8 |
- |
|
|
20 |
21.000 |
10.625 |
110.33 |
8 |
- |
API TUBING COUPLINGS - EXTERNAL UPSET END (EUE)
|
API EUE Tubing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
1.90 |
2.500 |
10 Round |
- |
1.85 |
- |
- |
|
2-3/8 |
3.063 |
8 Round |
4.875 |
3.42 |
1,444 |
3942 |
|
|
2-7/8 |
3.668 |
8 Round |
5.500 |
5.29 |
792 |
4220 |
|
|
3-1/2 |
4.500 |
8 Round |
5.750 |
9.02 |
448 |
3860 |
|
|
4 |
5.000 |
8 Round |
- |
10.62 |
392 |
- |
|
|
4-1/2 |
5.563 |
8 Round |
6.500 |
13.31 |
252 |
3456 |
API TUBING COUPLINGS - NON UPSET END (NUE)
|
API Non-Upset Tubing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
Palletized Carton Weight |
|
|
1.90 |
2.200 |
10 Round |
3.750 |
1.85 |
- |
- |
|
2-3/8 |
2.875 |
10 Round |
4.500 |
2.82 |
1,512 |
4264 |
|
|
2-7/8 |
3.500 |
10 Round |
5.500 |
5.15 |
800 |
4120 |
|
|
3-1/2 |
4.250 |
10 Round |
5.625 |
8.17 |
502 |
4101 |
|
|
4 |
4.75 |
8 Round |
5.75 |
9.57 |
392 |
- |
|
|
4-1/2 |
5.200 |
8 Round |
6.500 |
10.76 |
252 |
2712 |
COUPLING PIPE GRADE IDENTIFICATION BY PAINT COLOR
|
Grade |
Colour Coding (Painted Outside) |
|
H-40 |
Black |
|
J-55 or K-55 |
Green |
|
N-80 |
Red |
|
M-65 or L-80 |
Red with one Brown Band |
|
L-80 Type 9CR |
Red with two Yellow Bands |
|
L-80 Type 13CR |
Red with one Yellow Band |
|
C-90 Type 1 |
Purple |
|
C-90 Type 2 |
Purple with one Yellow Band |
|
T-95 Type 1 |
Silver |
|
T-95 Type 2 |
Silver with one Yellow Band |
|
C-95 |
Brown |
|
P-110 |
White |
|
Q-125 Type 1 |
Orange |
|
Q-125 Type 2 |
Orange with one Yellow Band |
|
Q-125 Type 3 |
Orange with one Green Band |
|
Q-125 Type 4 |
Orange with one Brown Band |
COUPLING PIPE GRADE IDENTIFICATION BY PAINT COLOR
According to API 5CT standards, Oil casing and Tubing couplings should be painted one by one to distinguish different grades of steel. The color label of the oil casing and Tubing should be sprayed at any end ≥ 600mm, and the color should be painted on the whole outer surface, and then the color ring should be sprayed.
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