OCTG couplings connect tubing and casing strings in oil and gas wells. Imex Canada supplies OCTG couplings in J55, K55, N80, L80, and P110 from 2 3/8" to 20", with NUE, EUE, STC, LTC, and BTC threads.
OCTG Tubing Couplings
| Size | Grade | OD (mm) | Thickness (mm) | Thread |
| 2 3/8" | J55 / K55 / N80 / L80 / P110 | 73.02 | 12 | NUE |
| 2 3/8" | J55 / K55 / N80 / L80 / P110 | 77.80 | 12 | EUE |
| 2 7/8" | J55 / K55 / N80 / L80 / P110 | 88.90 | 12.5 | NUE |
| 2 7/8" | J55 / K55 / N80 / L80 / P110 | 93.17 | 12.5 | EUE |
| 3 1/2" | J55 / K55 / N80 / L80 / P110 | 107.95 | 15 | NUE |
| 3 1/2" | J55 / K55 / N80 / L80 / P110 | 114.30 | 15 | EUE |
| 4" | J55 / K55 / N80 / L80 / P110 | 120.65 | 15.5 | NUE |
| 4" | J55 / K55 / N80 / L80 / P110 | 127.00 | 15.5 | EUE |
| 4 1/2" | J55 / K55 / N80 / L80 / P110 | 132.08 | 15 | NUE |
| 4 1/2" | J55 / K55 / N80 / L80 / P110 | 141.30 | 15 | EUE |
OCTG Casing Couplings
| Size | Grade | OD (mm) | Thickness (mm) | Thread |
| 4 1/2" | J55 / K55 / N80 / L80 / P110 | 133.35 | 16 | BTC / STC / LTC |
| 5" | J55 / K55 / N80 / L80 / P110 | 147.30 | 16 | BTC / STC / LTC |
| 5 1/2" | J55 / K55 / N80 / L80 / P110 | 160.02 | 16.5 | BTC / STC / LTC |
| 6 5/8" | J55 / K55 / N80 / L80 / P110 | 187.71 | 16.5 | BTC / STC / LTC |
| 7" | J55 / K55 / N80 / L80 / P110 | 200.03 | 18.5 | BTC / STC / LTC |
| 7 5/8" | J55 / K55 / N80 / L80 / P110 | 215.90 | 19 | BTC / STC / LTC |
| 8 5/8" | J55 / K55 / N80 / L80 / P110 | 244.48 | 21 | BTC / STC / LTC |
| 9 5/8" | J55 / K55 / N80 / L80 / P110 | 269.88 | 21 | BTC / STC / LTC |
| 10 3/4" | J55 / K55 / N80 / L80 / P110 | 298.45 | 21 | BTC / STC |
| 11 3/4" | J55 / K55 / N80 / L80 / P110 | 323.85 | 21 | BTC / STC |
| 13 3/8" | J55 / K55 / N80 / L80 / P110 | 365.12 | 21 | BTC / STC |
| 16" | J55 / K55 / N80 / L80 / P110 | 431.80 | 23 | BTC / STC |
| 18 5/8" | J55 / K55 / N80 / L80 / P110 | 508.00 | 26 | BTC / STC |
| 20" | J55 / K55 / N80 / L80 / P110 | 533.40 | 24 | BTC / STC / LTC |
Pup Joints
Tubing and casing pup joints are available alongside our OCTG couplings.
| Type | OD | Grade | End Type | Length (ft) |
| Tubing | 2 3/8", 2 7/8", 3 1/2", 4 1/2" | J / K / L / N / P | NUE / EUE | 2, 3, 4, 5, 6, 8, 10, 12 |
| Casing | 4 1/2" – 9 5/8" | J / K / L / N / P | LTC / STC / BTC | — |
| Casing | 10 3/4", 11 3/4", 13 3/8" | J / K / L / N / P | STC / BTC | — |
Premium Connections
Premium connections for tubing and casing are available in coupled, non-upset direct-connect, and upset direct-connect configurations, 1.660" to 20".
| Series | Configuration | Available Size | Equivalent |
| ES-1 | Premium connection with coupling | 2 3/8" – 13 3/8" | NEW VAM |
| ES-2 | Premium connection with coupling | 2 3/8" – 14" | VAM TOP |
| ES-3 | Premium connection with coupling | 2 3/8" – 13 3/8" | Tenaris Blue |
| ES-7 | Premium connection with coupling | 2 3/8" – 13 3/8" | DINO VAM |
| ES-11 | Premium connection with coupling | 4 1/2" – 10 3/4" | VAM TOP HC |
| ES-12 | Premium connection with coupling | 2 3/8" – 13 3/8" | Tenaris 3SB |
| ES-13 | Premium connection with coupling | 14" – 20" | BIG OMEGA |
| ES-14 | Premium connection with coupling | 2 3/8" – 9 5/8" | JFE-BEAR |
| ES-15 | Premium connection with coupling | 2 3/8" – 9 5/8" | JFE-FOX |
| ES-5 | Non-upset direct connect | 2 3/8" – 13 3/8" | VAM FJK |
| ES-9 | Non-upset direct connect | 5 1/2", 7 5/8", 10 3/4" | VAM MUST |
| ES-10 | Non-upset direct connect | 2 3/8" – 5 1/2" | Hydril 511 |
| ES-4 | Upset direct connect | 2 3/8" – 4 1/2" | PH4 |
| ES-6 | Upset direct connect | 2 3/8" – 4 1/2" | TS6 / PH6 |
| ES-8 | Upset direct connect | 1.660" – 7" | TS8 / CS |