| Product: | Casing and Tubing Coupling, Casing Coupling, Tubing Coupling |
| Application: | Used for connect 2 joints of tubing or casing |
| Size: | Tubing Coupling : 1.8/9 - 4-1/2'' |
| Casing Couping : 4-1/2'' - 13-3/8'' | |
| Pipe Standard: | API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q, |
| API 5CT and 5B L80-1,C90, C95,T95, P110, Q125 | |
| Surface: | Whole Phosphating or inside phosphating and outside coating |
| Thread: | NUE, EUE, STC, LTC, BTC, XC, HYDRILL CS |
| Special Service | Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156 |
| Packing: | By carton, wooden case, wooden pallet or requirement of customer |
Specification of Tubing And Casing Coupling
|
Product: |
Casing and Tubing Coupling, Casing Coupling, Tubing Coupling |
|
Application: |
Used for connect 2 joints of tubing or casing |
|
Size: |
Tubing Coupling : 1.8/9 - 4-1/2'' |
|
Casing Couping : 4-1/2'' - 13-3/8'' |
|
|
Pipe Standard: |
API 5CT and 5B PSL1/PSL2 J55,K55,N80-1,N80-Q, |
|
API 5CT and 5B L80-1,C90, C95,T95, P110, Q125 |
|
|
Surface: |
Whole Phosphating or inside phosphating and outside coating |
|
Thread: |
NUE, EUE, STC, LTC, BTC, XC, HYDRILL CS |
|
Special Service |
Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156 |
|
Packing: |
By carton, wooden case, wooden pallet or requirement of customer |
Properties of Casing Couplings：
♦ The material of casing couplings is H40, J55, K55, M65, N80-1, N80Q, L80, C95, T95 and P110 grade steel with high quality and good performance;
♦ The outer diameter ranges from 127mm to 365.12 mm;
♦ The casing couplings thread patterns include short round thread, long round thread and buttress thread.
Tubing coupling is a kind of drilling tool available in oil field. Tubing couplings are mainly used in connecting oil pipes. This type of pipe coupling has handled the problem that the existing couplings tend to crack because of stress concentration. The oil pipe ends and the inner wall of the tubing coupling are connected by threads. And the oil pipes and the ends of the tubing coupling have the same type of threads. It is not easy to crack for this type of connection and the connection effect is good. The tubing coupling can avoid the oil well string dropout accident effectively.
Properties of Tubing Coupling：
♦ The material of tubing couplings is H40, J55, N80-1, N80Q, L80, C90, T95 and P110 grade steel with high quality and good performance;
♦ It is mainly used to connect two oil pipes;
♦ The tubing coupling thread patterns include non-upset thread and upset thread;
♦ The outer diameter of tubing coupling ranges from 55.88 mm to 141.3 mm;
API Tubing Coupling
| Specification | |
| Size (Pipe OD) (in) | 1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 |
| Upset | Non UpsetExternal Upset |
| Grade | J-55, C-75, L-80, N-80, C-95, P-110 |
| Option | Electro-zinc platedPhosphorised |
API Casing Coupling
| Specification | |
| Size (Pipe OD) (in) | 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 |
| Threading | Short Round-Thread Casing (STC)Long Round-Thread Casing (LC)Buttress Thread Casing (BC) |
| Grade | H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR |
Applicable Standards:
API 5CT material for body;
API 5B for API threads;
Premium thread per licensor specifications
API 5CT Coupling Dimension
|
API Tubing Coupling |
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| Descriptions and size | Type of Thread | O.D*L | Weight | |
| (mm) | (kg) | |||
| Tubing Coupling | 1.05 | NUE | 33.35*80.96 | 0.23 |
| 1.05 | EUE | 42.16*82.55 | 0.38 | |
| 1.315 | NUE | 42.16*82.55 | 0.38 | |
| 1.315 | EUE | 48.26*88.90 | 0.57 | |
| 1.66 | NUE | 52.17*88.90 | 0.59 | |
| 1.66 | EUE | 58.88*95.25 | 0.68 | |
| 1.9 | NUE | 55.88*95.25 | 0.56 | |
| 1.9 | EUE | 63.50*98.42 | 0.84 | |
| 2-3/8″ | NUE | 73.02*107.95 | 1.28 | |
| 2-3/8″ | EUE | 77.80*132.82 | 1.55 | |
| 2-7/8″ | NUE | 88.90*130.18 | 2.34 | |
| 2-7/8″ | EUE | 93.17*133.35 | 2.4 | |
| 3-1/2″ | NUE | 107.95*142.88 | 3.71 | |
| 3-1/2″ | EUE | 114.30*146.05 | 4.1 | |
| 4″ | NUE | 120.65*146.05 | 4.35 | |
| 4″ | EUE | 127.00*152.40 | 4.82 | |
| 4-1/2″ | NUE | 132.08*155.58 | 4.89 | |
| 4-1/2″ | EUE | 141.30*158.75 | 6.05 | |
|
API Casing Coupling |
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Descriptions and size |
Type of Thread |
O.D*L |
Weight |
|
|
(mm) |
(kg) |
|||
|
Casing Coupling |
4-1/2″ |
STC |
127.00*158.75 |
5.23 |
|
4-1/2″ |
LTC |
127.00*177.80 |
4.15 |
|
|
4-1/2″ |
BTC |
127.00*225.42 |
4.55 |
|
|
5″ |
STC |
141.30*165.10 |
4.66 |
|
|
5″ |
LTC |
141.30*196.85 |
5.75 |
|
|
5″ |
BTC |
141.30*231.78 |
5.85 |
|
|
5-1/2″ |
STC |
153.67*171.45 |
5.23 |
|
|
5-1/2″ |
LTC |
153.67*203.20 |
6.42 |
|
|
5-1/2″ |
BTC |
153.67*234.95 |
6.36 |
|
|
6-5/8″ |
STC |
187.71*184.15 |
9.12 |
|
|
6-5/8″ |
LTC |
187.71*222.25 |
11.34 |
|
|
6-5/8″ |
BTC |
187.71*244.48 |
11.01 |
|
|
7″ |
STC |
194.46*184.15 |
8.39 |
|
|
7″ |
LTC |
194.46*228.60 |
10.83 |
|
|
7″ |
BTC |
194.46*254.00 |
10.54 |
|
|
7-5/8″ |
STC |
215.90*190.50 |
12.3 |
|
|
7-5/8″ |
LTC |
215.90*234.95 |
15.63 |
|
|
7-5/8″ |
BTC |
215.90*263.52 |
15.82 |
|
|
8-5/8″ |
STC |
244.48*196.85 |
16.23 |
|
|
8-5/8″ |
LTC |
244.48*254.00 |
21.67 |
|
|
8-5/8″ |
BTC |
244.48*269.88 |
20.86 |
|
|
9-5/8″ |
STC |
269.88*196.85 |
18.03 |
|
|
9-5/8″ |
LTC |
269.88*266.70 |
25.45 |
|
|
9-5/8″ |
BTC |
269.88*269.88 |
23.16 |
|
|
10-3/4″ |
STC |
298.45*203.20 |
20.78 |
|
|
10-3/4″ |
BTC |
298.45*269.88 |
25.74 |
|
|
11-3/4′ |
STC |
323.85*203.20 |
22.64 |
|
|
11-3/4′ |
BTC |
323.85*269.88 |
28.03 |
|
|
13-3/8″ |
STC |
365.12*203.20 |
25.66 |
|
|
13-3/8″ |
BTC |
365.12*269.88 |
31.77 |
|
|
16″ |
STC |
431.80*228.6 |
34.91 |
|
|
16″ |
BTC |
431.80*269.88 |
40.28 |
|
|
18-5/8″ |
STC |
508.00*228.60 |
51.01 |
|
|
18-5/8″ |
BTC |
508.00*269.88 |
62.68 |
|
|
20″ |
STC |
533.40*228.6 |
43.42 |
|
|
20″ |
LTC |
533.4*292.10 |
57.04 |
|
|
20″ |
BTC |
533.40*269.88 |
50.1 |
|
Main Technical Parameters of OCTG Couplings
|
Couplings |
Size in |
Max. OD in(mm) |
Min length in(mm) |
Grade |
||
|
NU |
EU |
NU |
EU |
|||
|
23/8 |
2.875(73.03) |
3.063(77.80) |
41/4(107.95) |
47/8(123.83) |
J55
N80 |
|
|
|
27/8 |
3.500(88.90) |
3.668(93.20) |
51/8(130.18) |
51/4(133.35) |
|
|
|
31/2 |
4.250(108.00) |
4.500(114.30) |
55/8(142.88) |
53/4(146.05) |
|
|
Crossovers |
J55,N80,L80 All kinds of crossovers, connections and sub-couplings of grades J55, N80 and L80 |
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