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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.


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