Casing Pipe, Oil Casing, API Casing, Well Casing, Casing Used for oil casing and tubing in oil wells as well as sidewall
Casing Pipe, Oil Casing, API Casing, Well Casing, Casing
Used for oil casing and tubing in oil wells as well as sidewall
| Product: | Casing Pipe, Oil Casing, API Casing, Well Casing, Casing |
| Application: | Used for oil casing and tubing in oil wells as well as sidewall |
| Size: | OD: 114.3mm - 508mm |
| WT: 5 - 16mm |
| LENGTH: R1, R2, R3 |
| Pipe Standard: | API 5CT PSL1/PSL2 J55, K55, N80-1, N80-Q, |
| API 5CT PSL1/PSL2 L80-1, L80-9Cr,L80-13Cr,C90, C95, P110, Q125 |
| Thread: | NUE, EUE, STC, LTC, BTC, XC, HYDRILL CS |
| Special Service | Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156 |
| Accessories: | Pup Joint, Coupling, Drill Collar, Crossover etc. |
Casing pipe
A casing pipe is a hollow steel tube that is typically rammed into place through the earth by using a hydraulic or pneumatic jack. After being driven, the displaced soil is removed and the product pipe, or carrier pipe, is inserted inside the steel tube.
Available Sizes
Category: ERW, HFW or SMLS
Standards: API 5CT PSL1/PSL2 J55,K55,N80-1,N80-Q,API 5CT PSL1/PSL2 L80-1, L80-9Cr,L80-13Cr,C90, C95, P110, Q125
Steel Grade: H40, J55, K55, N80
Connections
API 5CT is applicable to following connections which complied with API SPEC 5B:
• SC: Short round thread casing
• LC: Long ound thread casing
• BC: Buttress thread casing
• NU: Non-upset tubing
• EU: External upset tubing
| Specification of Casing Pipe |
| DN | O. D. | Weight | W. T. | End Machining Form |
| Steel Grade |
| in | mm | lb/ft | kg/m | in | mm | H40 | J55 | L80 | N80 | C90 | P110 |
| K55 | T95 |
| 4 1/2 | 4.5 | 114.3 | 9.5 | 14.14 | 0.205 | 5.21 | PS | PS | – | – | – | – |
| 10.5 | 15.63 | 0.224 | 5.69 | – | PSB | – | – | – | – |
| 11.6 | 17.26 | 0.25 | 6.35 | – | PSLB | PLB | PLB | PLB | PLB |
| 13.5 | 20.09 | 0.29 | 7.37 | – | – | PLB | PLB | PLB | PLB |
| 15.1 | 22.47 | 0.337 | 9.56 | – | – | – | – | – | PLB |
| 5 | 5 | 127 | 11.5 | 17.11 | 0.22 | 5.59 | – | PS | – | – | – | – |
| 13 | 19.35 | 0.253 | 6.43 | – | PSLB | – | – | – | – |
| 15 | 22.32 | 0.296 | 7.52 | – | PSLB | PLB | PLB | PLBE | PLB |
| 18 | 26.79 | 0.362 | 9.19 | – | – | PLB | PLB | PLBE | PLB |
| 21.4 | 31.85 | 0.437 | 11.1 | – | – | PLB | PLB | PLB | PLB |
| 23.2 | 34.53 | 0.478 | 12.14 | – | – | – | – | PLB | – |
| 24.1 | 35.86 | 0.5 | 12.7 | – | – | – | – | PLB | – |
| 5 1/2 | 5.5 | 139.7 | 14 | 20.83 | 0.244 | 6.2 | PS | PS | – | – | – | – |
| 15.5 | 23.07 | 0.275 | 6.98 | – | PSLB | – | – | – | – |
| 17 | 25.3 | 0.304 | 7.72 | – | PSLB | PLB | PLB | PLBE | PLB |
| 20 | 29.76 | 0.361 | 9.17 | – | – | PLB | PLB | PLBE | PLB |
| 23 | 34.23 | 0.415 | 10.54 | – | – | PLB | PLB | PLBE | PLB |
| 26.8 | 39.88 | 0.5 | 12.7 | – | – | – | – | – | – |
| 29.7 | 44.2 | 0.562 | 14.27 | – | – | – | – | – | – |
| 32.6 | 48.51 | 0.625 | 15.88 | – | – | – | – | – | – |
| 35.3 | 52.53 | 0.687 | 17.45 | – | – | – | – | – | – |
| 38 | 56.55 | 0.75 | 19.05 | – | – | – | – | – | – |
| 40.5 | 60.27 | 0.812 | 20.62 | – | – | – | – | – | – |
| 43.1 | 64.14 | 0.875 | 22.22 | – | – | – | – | – | – |
| 6 5/8 | 6.625 | 168.28 | 20 | 29.76 | 0.288 | 7.32 | PS | PSLB | – | – | – | – |
| 24 | 35.72 | 0.352 | 8.94 | – | PSLB | PLB | PLB | PLBE | PLB |
| 28 | 41.67 | 0.417 | 10.59 | – | – | PLB | PLB | PLBE | PLB |
| 32 | 47.62 | 0.475 | 12.06 | – | – | PLB | PLB | PLBE | PLB |
| 7 | 7 | 177.8 | 17 | 25.3 | 0.231 | 5.87 | PS | – | – | – | – | – |
| 20 | 29.76 | 0.272 | 6.91 | PS | PS | – | – | – | – |
| 23 | 34.23 | 0.317 | 8.05 | – | PSLB | PLB | PLB | PLBE | – |
| 26 | 38.69 | 0.362 | 9.19 | – | PSLB | PLB | PLB | PLBE | PLB |
| 29 | 43.16 | 0.408 | 10.36 | – | – | PLB | PLB | PLBE | PLB |
| 32 | 47.62 | 0.453 | 11.51 | – | – | PLB | PLB | PLBE | PLB |
| 35 | 52.09 | 0.498 | 12.65 | – | – | PLB | PLB | PLBE | PLB |
| 38 | 56.55 | 0.54 | 13.72 | – | – | PLB | PLB | PLBE | PLB |
| 42.7 | 63.54 | 0.625 | 15.88 | – | – | – | – | – | – |
| 46.4 | 69.05 | 0.687 | 17.45 | – | – | – | – | – | – |
| 50.1 | 74.56 | 0.75 | 19.05 | – | – | – | – | – | – |
| 53.6 | 79.77 | 0.812 | 20.62 | – | – | – | – | – | – |
| 57.1 | 84.97 | 0.875 | 22.22 | – | – | – | – | – | – |
| 7 5/8 | 7.625 | 193.68 | 24 | 35.72 | 0.3 | 7.62 | PS | – | – | – | – | – |
| 26.4 | 39.29 | 0.328 | 8.33 | – | PSLB | PLB | PLB | PLBE | PLB |
| 29.7 | 44.2 | 0.375 | 9.52 | – | – | PLB | PLB | PLBE | PLB |
| 33.7 | 50.15 | 0.43 | 10.92 | – | – | PLB | PLB | PLBE | PLB |
| 39 | 58.05 | 0.5 | 12.7 | – | – | PLB | PLB | PLBE | PLB |
| 42.8 | 63.69 | 0.562 | 14.27 | – | – | PLB | PLB | PLB | PLB |
| 45.3 | 67.41 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB |
| 47.1 | 70.09 | 0.625 | 15.88 | – | – | PLB | PLB | PLB | PLB |
| 51.2 | 76.19 | 0.687 | 17.45 | – | – | – | – | – | – |
| 55.3 | 80.3 | 0.75 | 19.05 | – | – | – | – | – | – |
| 8 5/8 | 8.625 | 219.08 | 24 | 35.72 | 0.264 | 6.71 | – | PS | – | – | – | – |
| 28 | 41.62 | 0.304 | 7.72 | PS | – | – | – | – | – |
| 32 | 47.62 | 0.352 | 8.94 | PS | PSLB | – | – | – | – |
| 36 | 53.57 | 0.4 | 10.16 | – | PSLB | PLB | PLB | PLBE | PLB |
| 40 | 59.53 | 0.45 | 11.43 | – | – | PLB | PLB | PLBE | PLB |
| 44 | 65.48 | 0.5 | 12.7 | – | – | PLB | PLB | PLBE | PLB |
| 49 | 72.92 | 0.557 | 14.15 | – | – | PLB | PLB | PLBE | PLB |
| 9 5/8 | 9.625 | 244.48 | 32.3 | 48.07 | 0.312 | 7.92 | PS | – | – | – | – | – |
| 36 | 53.57 | 0.352 | 8.94 | PS | PSLB | – | – | – | – |
| 40 | 59.53 | 0.395 | 10.03 | – | PSLB | PLB | PLB | PLBE | – |
| 43.5 | 64.73 | 0.435 | 11.05 | – | – | PLB | PLB | PLBE | PLB |
| 47 | 69.94 | 0.472 | 11.99 | – | – | PLB | PLB | PLBE | PLB |
| 53.5 | 79.62 | 0.545 | 13.84 | – | – | PLB | PLB | PLBE | PLB |
| 58.4 | 86.91 | 0.595 | 15.11 | – | – | PLB | PLB | PLB | PLB |
| 59.4 | 88.4 | 0.609 | 15.47 | – | – | – | – | – | – |
| 64.9 | 96.58 | 0.672 | 17.07 | – | – | – | – | – | – |
| 70.3 | 104.62 | 0.734 | 18.64 | – | – | – | – | – | – |
| 75.6 | 112.5 | 0.797 | 20.24 | – | – | – | – | – | – |
| 10 3/4 | 10.75 | 273.05 | 32.75 | 48.74 | 0.279 | 7.09 | PS | – | – | – | – | – |
| 40.5 | 60.27 | 0.35 | 8.89 | PS | PSB | – | – | – | – |
| 15.5 | 67.71 | 0.4 | 10.16 | – | PSB | – | – | – | – |
| 51 | 75.9 | 0.45 | 11.43 | – | PSB | PSB | PSB | PSBE | PSB |
| 55.5 | 82.59 | 0.495 | 12.57 | – | – | PSB | PSB | PSBE | PSB |
| 60.7 | 90.33 | 0.545 | 13.84 | – | – | – | – | PSBE | PSB |
| 65.7 | 97.77 | 0.595 | 15.11 | – | – | – | – | PSB | PSB |
| 73.2 | 108.93 | 0.672 | 17.07 | – | – | – | – | – | – |
| 79.2 | 117.86 | 0.734 | 18.64 | – | – | – | – | – | – |
| 85.3 | 126.94 | 0.797 | 20.24 | – | – | – | – | – | – |
| 11 3/4 | 11.75 | | 42 | 62.5 | 0.333 | 8.46 | PS | – | – | – | – | – |
| 47 | 69.94 | 0.375 | 20.24 | – | – | – | – | – | – |
| 54 | 80.36 | 0.435 | 8.46 | – | – | – | – | – | – |
| 60 | 89.29 | 0.489 | 9.53 | – | – | – | – | – | – |
| 65 | 96.73 | 0.534 | 11.05 | – | – | – | – | – | – |
| 71 | 105.66 | 0.582 | 14.42 | – | – | – | – | – | – |
| 13 3/8 | 13.375 | 339.73 | 48 | 71.43 | 0.33 | 8.38 | PS | – | – | – | – | – |
| 54.5 | 81.1 | 0.38 | 9.65 | – | PSB | – | – | – | – |
| 61 | 90.78 | 0.43 | 10.92 | – | PSB | – | – | – | – |
| 68 | 101.19 | 0.48 | 12.19 | – | PSB | PSB | PSB | PSB | PSB |
| 72 | 107.15 | 0.514 | 13.06 | – | – | PSB | PSB | PSB | PSB |
| 16 | 16 | 406.4 | 65 | 96.73 | 0.375 | 9.53 | PS | – | – | – | – | – |
| 75 | 111.61 | 0.438 | 11.13 | – | PSB | – | – | – | – |
| 84 | 125.01 | 0.495 | 12.57 | – | PSB | – | – | – | – |
| 109 | 162.21 | 0.656 | 16.66 | – | P | P | P | – | P |
| 18 5/8 | 18.625 | 473.08 | 87.5 | 130.21 | 0.435 | 11.05 | PS | PSB | – | – | – | – |
| 20 | 20 | 508 | 94 | 139.89 | 0.438 | 11.13 | PSL | PSLB | – | – | – | – |
| 106.5 | 158.49 | 0.5 | 12.7 | – | PSLB | – | – | – | – |
| 133 | 197.93 | 0.635 | 16.13 | – | PSLB | – | – | – | – |
| P——Plain ; S——Short-thread ; L——Long-thread ; B——Buttress thread ; E——Extreme thread |
| Chemical compositions of casing pipe |
| Standard | Grade | Chemical compositions(％) |
| API SPEC 5CT | J55 | C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V |
| K55 | 0.34～0.39 | 0.20～0.35 | 1.25～1.50 | ≤0.020 | ≤0.015 | ≤0.15 | ≤0.20 | ≤0.20 | / | / |
| N80 | 0.34～0.38 | 0.20～0.35 | 1.45～1.70 | ≤0.020 | ≤0.015 | ≤0.15 | / | / | / | 0.11～0.16 |
| L80 | 0.15～0.22 | ≤1.00 | 0.25～1.00 | ≤0.020 | ≤0.010 | 12.0～14.0 | ≤0.20 | ≤0.20 | / | / |
| P110 | 0.26～0.395 | 0.17～0.37 | 0.40～0.70 | ≤0.020 | ≤0.010 | 0.80～1.10 | ≤0.20 | ≤0.20 | 0.15～0.25 | ≤0.08 |
| Mechanical properties of casing pipe |
| Grade | Type | Total elongation under load (%) | Yield strength (min) | Yield strength (max) | Tensile strength min Mpa | Hardness Max (HRC) | Hardness Max(HBW) |
| J55 | - | 0.5 | 379 | 552 | 517 | - | - |
| K55 | - | 0.5 | 379 | 552 | 655 | - | - |
| N80 | 1 | 0.5 | 552 | 758 | 689 | - | - |
| N80 | Q | 0.5 | 552 | 758 | 689 | - | - |
| L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 9Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| L80 | 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 |
| C90 | - | 0.5 | 621 | 724 | 689 | 25.4 | 255 |
| C95 | - | 0.5 | 655 | 758 | 724 | - | - |
| T95 | - | 0.5 | 655 | 758 | 724 | 25.4 | 255 |
| P110 | - | 0.6 | 758 | 965 | 862 | - | - |
| Q125 | All | 0.65 | 862 | 1034 | 931 | - | - |
Our factory
Packing
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.Our packing can meet any needs of the customers.
Plastic caps plugged at the two sides of pipe ends
Should be avoided by the steel strapping and transport damage
Bundled signs should be uniform and consistent
The same bundle(batch) of steel pipe should be came from the same furnace.
The steel pipe has the same furnace number, the same steel grade, the same specifications.
Manufacture Process:
Equipment:
