API
Products
Drill
pipe elevator
Casing
elevator
Drill collar
elevator
Slip
type elevator
Tubing
elevator
Sucker
rod elevator
Single
joint elevator
Elevator
links
Perfection links & Drill collar lift adaptor
Rotary
slips & Casing slips & Drill collar slips
Safety
clamps
Manual
tongs
Tubing
Spider
Roller kelly bushing
Casing bushing
Related Information
Tubing
Casing
Pup joint
Coupling
Crossove
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API
5CT coupling
Coupling is a short piece of tubing or casing to join tubing or casing together,
couplings can be available in tubing coupling and casing coupling, material of
couplings can be J55, K55, L80, N80 and P110. Tubing coupling ends can be EUE or
NUE, threads of tubing coupling or casing coupling can be short thread, long
thread or BTC thread. Tubing couplings can range size from 2⅜" to 4½", while
casing couplings can range size from 4½" to 20".
Tubing coupling
Tubing coupling is
used to join tubings together to complete an installation quickly,
and tubing coupling allows a user to adjust length of tubings to meet field
service. Tubing coupling features attachable and detachable, such can ensure
tubing can be moved or disconnected for other purpose.
API
EUE Tubing Couplings |
Technical data for API EUE tubing couplings |
 |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
1.90 |
2.500 |
10 Rd |
- |
1.85 |
2⅜ |
3.063 |
8 Rd |
4.875 |
3.42 |
2⅞ |
3.668 |
8 Rd |
5.500 |
5.29 |
3½ |
4.500 |
8 Rd |
5.750 |
9.02 |
4 |
5.000 |
8 Rd |
- |
10.62 |
4½ |
5.563 |
8 Rd |
6.500 |
13.31 |
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API
Non-Upset Tubing Couplings |
Technical data for API Non-Upset tubing couplings |
 |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Threads per inch |
Length (inches) |
Weight per Coupling (lbs) |
1.90 |
2.200 |
10 Rd |
3.750 |
1.85 |
2⅜ |
2.875 |
10 Rd |
4.500 |
2.82 |
2⅞ |
3.500 |
10 Rd |
5.500 |
5.15 |
3½ |
4.250 |
10 Rd |
5.625 |
8.17 |
4 |
4.75 |
8 Rd |
5.75 |
9.57 |
4½ |
5.200 |
8 Rd |
6.500 |
10.76 |
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Casing Coupling
Casing coupling is
used to join casings together,
and casing couplings are usually made of the same grade of steel as the
casing, casing couplings can be machined with long thread, short thread or
buttress thread.
|
Casing
coupling product |
Technical data for API EUE casing couplings |
 |
Casing Coupling Specs |
Casing Size OD
(inches) |
Coupling Size
OD (inches) |
Length
(inches) |
Weight Per Coupling (lbs) |
Casing Coupling LTC |
4½ |
5 |
7 |
9.07 |
5 |
5.536 |
7.75 |
12.56 |
5½ |
6.05 |
8 |
14.03 |
6⅝ |
7.39 |
8.75 |
24.82 |
7 |
7.656 |
9 |
23.67 |
7⅝ |
8.5 |
9.25 |
34.23 |
8⅝ |
9.625 |
10 |
47.48 |
9⅝ |
10.625 |
10.5 |
55.77 |
Casing Coupling STC |
4½ |
5 |
6.25 |
8.05 |
5 |
5.563 |
6.5 |
10.18 |
5½ |
6.05 |
6.75 |
11.44 |
6⅝ |
7.39 |
7.25 |
19.97 |
7 |
7.656 |
7.25 |
18.34 |
7⅝ |
8.5 |
7.25 |
26.93 |
8⅝ |
9.625 |
7.5 |
35.58 |
9⅝ |
10.625 |
7.75 |
39.51 |
10¾ |
11.75 |
7.75 |
49.61 |
11¾ |
12.75 |
8 |
50.49 |
13⅜ |
14.375 |
8 |
56.23 |
16 |
17 |
8 |
78.98 |
20 |
21 |
9 |
98.25 |
Casing Coupling BTC |
4½ |
5 |
8.875 |
10.11 |
5 |
5.563 |
9.125 |
12.99 |
5½ |
6.05 |
9.25 |
14.14 |
6⅝ |
7.39 |
9.625 |
24.46 |
7 |
7.656 |
10 |
23.22 |
7⅝ |
8.5 |
10.375 |
64.84 |
8⅝ |
9.625 |
10.625 |
45.94 |
9⅝ |
10.625 |
10.625 |
50.99 |
10¾ |
11.75 |
10.625 |
56.68 |
11¾ |
12.75 |
10.625 |
61.74 |
13⅜ |
14.375 |
10.625 |
69.95 |
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