N80 steel casing pipe is an important tool used in oil well drilling (Other important tools include drill pipe, core barrel, casing, drill collar, small diameter steel tube used in drilling, etc.). This casing tube is made of steel of N80 grade. It is used for reinforcing the well wall. It is also a tunnel that delivers petroleum from underground to surface. This product is a completion tool used after the drilling process and before well cementation.
Features
1. The thread and coupling of this steel casing pipe are specially processed which have smooth surface without any burr, tear or other defects. These defects may have a bad influence on the products’ strength and connection.
2. The mechanical properties of this product are higher than that of the J55 and K55 types. This steel casing pipe can be applied to some more complicated formation in deeper holes. It can be used for the exploitation of middle-level oil and gas.
3. Due to the good performance of N80 material, this casing tube is extensively used in natural gas and coal bed methane extraction as well as in geothermal wells.
4. We are a specialized manufacturer of steel casing pipes. The sizes of this pipes range from 41/2'' to 20''. All pipes are produced strictly in accordance with API specifications.
| Specification | Nominal Weight | Outer Diameter | Wall Thickness | Processing Mode of the Ends | ||||||
| Steel Grade | ||||||||||
| in | mm | in | mm | J55K55 | L80 | N80 | C90T95 | P110 | ||
| 4 1/2 | 9.50 | 4.500 | 114.3 | 0.205 | 5.21 | PS | - | - | - | - |
| 10.50 | 0.224 | 5.69 | PSB | - | - | - | - | |||
| 11.60 | 0.250 | 6.35 | PSLB | PLB | PLB | PLB | PLB | |||
| 13.50 | 0.290 | 7.37 | - | PLB | PLB | PLB | PLB | |||
| 15.10 | 0.337 | 9.56 | - | - | - | - | PLB | |||
| 5 | 11.50 | 5.00 | 127.00 | 0.220 | 5.59 | PS | - | - | - | - |
| 13.00 | 0.253 | 6.43 | PSLB | - | - | - | - | |||
| 15.00 | 0.296 | 7.52 | PSLB | PLB | PLB | PLBE | PLB | |||
| 18.00 | 0.362 | 9.19 | - | PLB | PLB | PLBE | PLB | |||
| 21.40 | 0.437 | 11.10 | - | PLB | PLB | PLB | PLB | |||
| 23.20 | 0.478 | 12.14 | - | PLB | ||||||
| 24.10 | 0.500 | 12.70 | - | PLB | ||||||
| 5 1/2 | 14.00 | 5.500 | 139.7 | 0.244 | 6.20 | PS | - | - | - | - |
| 15.50 | 0.275 | 6.98 | PSLB | - | - | - | - | |||
| 17.00 | 0.304 | 7.72 | PSLB | PLB | PLB | PLBE | PLB | |||
| 20.00 | 0.361 | 9.17 | - | PLB | PLB | PLBE | PLB | |||
| 23.00 | 0.415 | 10.54 | - | PLB | PLB | PLBE | PLB | |||
| 6 5/8 | 20.00 | 6.625 | 168.28 | 0.288 | 7.32 | PSLB | - | - | - | - |
| 24.00 | 0.352 | 8.94 | PSLB | PLB | PLB | PLBE | PLB | |||
| 28.00 | 0.417 | 10.59 | - | PLB | PLB | PLBE | PLB | |||
| 32.00 | 0.475 | 12.06 | - | PLB | PLB | PLBE | PLB | |||
| 7 | 17.00 | 7.00 | 177.80 | 0.231 | 5.87 | - | - | - | - | - |
| 20.00 | 0.272 | 6.91 | PS | - | - | - | - | |||
| 23.00 | 0.317 | 8.05 | PSLB | PLB | PLB | PLBE | - | |||
| 26.00 | 0.362 | 9.19 | PSLB | PLB | PLB | PLBE | PLB | |||
| 29.00 | 0.408 | 10.36 | - | PLB | PLB | PLBE | PLB | |||
| 32.00 | 0.453 | 11.51 | - | PLB | PLB | PLBE | PLB | |||
| 35.00 | 0.498 | 12.65 | - | PLB | PLB | PLBE | PLB | |||
| 38.00 | 0.540 | 13.72 | - | PLB | PLB | PLBE | PLB | |||
| 7 5/8 | 24.00 | 7.625 | 193.68 | 0.300 | 7.62 | - | - | - | - | - |
| 26.40 | 0.328 | 8.33 | PSLB | PLB | PLB | PLBE | PLB | |||
| 29.70 | 0.375 | 9.52 | - | PLB | PLB | PLBE | PLB | |||
| 33.70 | 0.430 | 10.92 | - | PLB | PLB | PLBE | PLB | |||
| 39.00 | 0.500 | 12.70 | - | PLB | PLB | PLBE | PLB | |||
| 42.80 | 0.562 | 14.27 | - | PLB | PLB | PLB | PLB | |||
| 45.30 | 0.595 | 15.11 | - | PLB | PLB | PLB | PLB | |||
| 47.10 | 0.625 | 15.88 | - | PLB | PLB | PLB | PLB | |||
| 8 5/8 | 24.00 | 8.625 | 219.08 | 0.264 | 6.71 | PS | - | - | - | - |
| 28.00 | 0.304 | 7.72 | - | - | - | - | - | |||
| 32.00 | 0.352 | 8.94 | PSLB | - | - | - | - | |||
| 36.00 | 0.400 | 10.16 | PSLB | PLB | PLB | PLBE | PLB | |||
| 40.00 | 0.450 | 11.43 | - | PLB | PLB | PLBE | PLB | |||
| 44.00 | 0.500 | 12.70 | - | PLB | PLB | PLBE | PLB | |||
| 49.00 | 0.557 | 14.15 | - | PLB | PLB | PLBE | PLB | |||
| 9 5/8 | 32.30 | 9.625 | 244.48 | 0.312 | 7.92 | - | - | - | - | - |
| 36.00 | 0.352 | 8.94 | PSLB | - | - | - | - | |||
| 40.00 | 0.395 | 10.03 | PSLB | PLB | PLB | PLBE | - | |||
| 43.50 | 0.435 | 11.05 | - | PLB | PLB | PLBE | PLB | |||
| 47.00 | 0.472 | 11.99 | - | PLB | PLB | PLBE | PLB | |||
| 53.50 | 0.545 | 13.84 | - | PLB | PLB | PLBE | PLB | |||
| 58.40 | 0.595 | 15.11 | - | PLB | PLB | PLB | PLB | |||
| 10 3/4 | 32.75 | 10.75 | 273.05 | 0.279 | 7.09 | - | - | - | - | - |
| 40.50 | 0.350 | 8.89 | PSB | - | - | - | - | |||
| 15.50 | 0.400 | 10.16 | PSB | - | - | - | - | |||
| 51.00 | 0.450 | 11.43 | PSB | PSB | PSB | PSBE | PSB | |||
| 55.50 | 0.495 | 12.57 | - | PSB | PSB | PSBE | PSB | |||
| 60.70 | 0.545 | 13.84 | - | - | - | PSBE | PSB | |||
| 65.70 | 0.595 | 15.11 | - | - | - | PSB | PSB | |||
| 13 3/8 | 48.00 | 13.375 | 339.73 | 0.330 | 8.38 | - | - | - | - | - |
| 54.50 | 0.380 | 9.65 | PSB | - | - | - | - | |||
| 61.00 | 0.430 | 10.92 | PSB | - | - | - | - | |||
| 68.00 | 0.480 | 12.19 | PSB | PSB | PSB | PSB | PSB | |||
| 72.00 | 0.514 | 13.06 | - | PSB | PSB | PSB | PSB | |||
| 16 | 65.00 | 16 | 406.40 | 0.375 | 9.53 | - | - | - | - | - |
| 75.00 | 0.438 | 11.13 | PSB | - | - | - | - | |||
| 84.00 | 0.495 | 12.57 | PSB | - | - | - | - | |||
| 109.00 | 0.656 | 16.66 | P | P | P | - | P | |||
| 18 5/8 | 87.50 | 18.625 | 473.08 | 0.435 | 11.05 | PSB | - | - | - | - |
| 20 | 94.00 | 20 | 508.00 | 0.438 | 11.13 | PSLB | - | - | - | - |
| 106.50 | 0.500 | 12.70 | PSLB | - | - | - | - | |||
| 133.00 | 0.635 | 16.13 | PSLB | - | - | - | - | |||
