Dongying Oilman Machinery Equipment Co.,Ltd.
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Pup Joints are used to adjust the height of full length tubing or casing strings. They are also used to adjust the depth of downhole tools. Pup Joint sets are available in: Integral Premium Thread Box-by-Pin Pin-by-Pin with couplings boxed separately Pin-by-Pin with couplings hand tight Pin-by-Coupling Box Flush joint connections.
| Specification of tubing pup joint | ||||
| TUBING PUP JOINT | OD | GRADE | END TYPE | LENGTH (FT) |
| 2 3/8” | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| 2 7/8” | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| 3 1/2” | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| 4 1/2” | J/K/L/N/P | NUE/EUE | 2/3/4/5/6/8/10/12 | |
| Specification of casing pup joint | |||
| CASING PUP JOINT | OD | GRADE | END TYPE |
| 4 1/2” | J/K/L/N/P | LTC/STC/BTC | |
| 5” | J/K/L/N/P | LTC/STC/BTC | |
| 5 1/2” | J/K/L/N/P | LTC/STC/BTC | |
| 6 5/8” | J/K/L/N/P | LTC/STC/BTC | |
| 7” | J/K/L/N/P | LTC/STC/BTC | |
| 7 5/8” | J/K/L/N/P | LTC/STC/BTC | |
| 7 3/4” | J/K/L/N/P | LTC/STC/BTC | |
| 8 5/8” | J/K/L/N/P | LTC/STC/BTC | |
| 9 5/8” | J/K/L/N/P | LTC/STC/BTC | |
| 10 3/4” | J/K/L/N/P | LTC/STC/BTC | |
| 11 3/4” | J/K/L/N/P | LTC/STC/BTC | |
| 13 3/8” | J/K/L/N/P | LTC/STC/BTC | |
Casing Coupling
Casing couplings are important accessories for tubing and casing pipes. We can supply various API 5CT/5B/5L casing and tubing couplings from 1.66” to 13-3/8” in threads: NU, EU, STC, BTC, LTC. The casing and tubing couplings can be made in grade H40, J55, K55, N80, L80, P110 and so on.
| Size and Specifications For Casing Couplings | ||||
| Descriptions and size | Type of Thread | O.D*L (mm) | Weight (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 | 12.30 | |
| 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 | 50.10 | |
Tubing Coupling
Couplings are important accessories for tubing and casing pipes. We supply various API 5CT/5B/5L casing and tubing couplings from 1.66” to 13-3/8” in threads: NU, EU, STC, BTC, LTC. The casing and tubing couplings can be made in grade H40, J55, K55, N80, L80, P110 and so on.
Technical Specifications of Tubing Coupling
| Tubing Coupling Size (in) | O.D. (in) | Minimum Length(in) | Weight (lbs) |
| Round Thread | Round Thread | Round Thread | |
| 2-3/8 | 2.875 | 4-1/4 | 2.82 |
| 2-7/8 | 3.500 | 5-1/8 | 5.15 |
| 3-1/2 | 4.250 | 5-5/8 | 8.17 |
| 4 | 4.750 | 5-3/4 | 9.58 |
| 4-1/2 | 5.200 | 6-1/8 | 10.77 |
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