Sanjack Intermediate casing
Sanjack Petro manufactures Intermediate casing in China. We have our own factory of Intermediate casing. Sanjack Petro provides the high quality and competitive price on Intermediate casing for you. Contact us now for an Intermediate casing quotation.
- Since 1995, Sanjack Petro has been producing OCTG Tubing & Casing and other special Tubing Pipes.
- It is one of the most professional OCTG Tubing Manufacturers and Suppliers.
- Sanjack has 20 years of OCTG Tubing & Casing experience.
- Magnetic Flux Leakage Testing, Ultrasonic Flaw Testing, Magnetic Particle Testing, Tubing Integrity Testing.
Intermediate casing
Intermediate casing is set to isolate:
- Unstable hole sections
- Lost-circulation zones
- Low-pressure zones
- Production zones
It is often set in the transition zone from normal to abnormal pressure.
The casing cement top must isolate any hydrocarbon zones.
Some wells require multiple intermediate strings.
Some intermediate strings may also be production strings if a liner is run beneath them.
Intermediate casing
Many troublesome formations can be encountered during drilling operations until getting to the production zone.
These troublesome formations have to be isolated by what is called the intermediate casing.
The number of strings runs as intermediate casing depends on the faced problems such as lost circulation zones, unstable shale, squeezing salts, and abnormally pressured zones.
Casing and Tubing Data Sheet
Casing Pipe Dimensions and Weight Chart for round thread and buttress thread
|
Labels |
Outside diameter | Nominal
linear mass T&C |
Wall thickness | Inside diameter | Drift diameter | Calculated mass C | |||||
| Plain end | Mass gain or loss due to end finishing (lb) | ||||||||||
| Round thread | Buttress thread | ||||||||||
| 1 | 2.00 | D （in） | lb/ft | t （in） | d （in） | in | lb/ft | Short | Long | RC | SCC |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 4 1/2 | 9.50 | 4.500 | 9.50 | 0.205 | 4.090 | 3.965 | 9.41 | 4.20 | |||
| 4 1/2 | 10.50 | 4.500 | 10.50 | 0.224 | 4.052 | 3.927 | 10.24 | 3.80 | 5.00 | 2.56 | |
| 4 1/2 | 11.60 | 4.500 | 11.60 | 0.250 | 4.000 | 3.875 | 11.36 | 3.40 | 3.80 | 4.60 | 2.16 |
| 4 1/2 | 13.50 | 4.500 | 13.50 | 0.290 | 3.920 | 3.795 | 13.05 | 3.20 | 4.00 | 1.56 | |
| 4 1/2 | 15.10 | 4.500 | 15.10 | 0.337 | 3.826 | 3.701 | 15.00 | 2.80 | 3.20 | 0.76 | |
| 5 | 11.50 | 5.000 | 11.50 | 0.220 | 4.560 | 4.435 | 11.24 | 5.40 | |||
| 5 | 13.00 | 5.000 | 13.00 | 0.253 | 4.494 | 4.369 | 12.84 | 4.80 | 5.80 | 6.60 | 2.42 |
| 5 | 15.00 | 5.000 | 15.00 | 0.296 | 4.408 | 4.283 | 14.88 | 4.20 | 5.20 | 5.80 | 1.62 |
| 5 | 18.00 | 5.000 | 18.00 | 0.362 | 4.276 | 4.151 | 17.95 | 4.20 | 4.40 | 0.22 | |
| 5 | 21.40 | 5.000 | 21.40 | 0.437 | 4.126 | 4.001 | 21.32 | 2.95 | 2.46 | -1.72 | |
| 5 | 23.20 | 5.000 | 23.20 | 0.478 | 4.044 | 3.919 | 23.11 | 2.30 | 2.05 | -2.09 | |
| 5 | 24.10 | 5.000 | 24.10 | 0.500 | 4.000 | 3.875 | 24.05 | 1.95 | 1.24 | -2.94 | |
| 5 1/2 | 14.00 | 5.500 | 14.00 | 0.244 | 5.015 | 4.887 | 13.71 | 5.40 | |||
| 5 1/2 | 15.50 | 5.500 | 15.50 | 0.275 | 4.950 | 4.825 | 15.36 | 4.80 | 5.80 | 6.40 | 2.10 |
| 5 1/2 | 17.00 | 5.500 | 17.00 | 0.304 | 4.892 | 4.767 | 16.89 | 4.40 | 5.40 | 5.80 | 1.50 |
| 5 1/2 | 20.00 | 5.500 | 20.00 | 0.361 | 4.778 | 4.653 | 19.83 | 4.40 | 4.60 | 0.30 | |
| 5 1/2 | 23.00 | 5.500 | 23.00 | 0.415 | 4.670 | 4.545 | 22.56 | 3.20 | 3.40 | 0.90 | |
| 5 1/2 | 26.80 | 5.500 | 26.80 | 0.500 | 4.500 | 4.375 | 26.72 | ||||
| 5 1/2 | 29.70 | 5.500 | 29.70 | 0.562 | 4.376 | 4.251 | 29.67 | ||||
| 5 1/2 | 32.60 | 5.500 | 32.60 | 0.625 | 4.250 | 4.125 | 32.57 | ||||
| 5 1/2 | 35.30 | 5.500 | 35.30 | 0.687 | 4.126 | 4.001 | 35.35 | ||||
| 5 1/2 | 38.00 | 5.500 | 38.00 | 0.750 | 4.000 | 3.875 | 38.08 | ||||
| 5 1/2 | 40.50 | 5.500 | 40.50 | 0.812 | 3.876 | 3.751 | 40.69 | ||||
| 5 1/2 | 43.10 | 5.500 | 43.10 | 0.875 | 3.750 | 3.625 | 43.26 | ||||
| 7 | 17.00 | 7.000 | 17.00 | 0.231 | 6.538 | 6.413 | 16.72 | 10.00 | |||
| 7 | 20.00 | 7.000 | 20.00 | 0.272 | 6.456 | 6.331 | 19.56 | 9.40 | |||
| 7 | 23.00 | 7.000 | 23.00 | 0.317 | 6.366 | 6.250 | 22.65 | 8.00 | 10.40 | 11.00 | 1.60 |
| 7 | 23.00 | 7.000 | 23.00 | 0.317 | 6.366 | 6.241 | 22.65 | 8.00 | 10.40 | 11.00 | 1.60 |
| 7 | 26.00 | 7.000 | 26.00 | 0.362 | 6.276 | 6.151 | 25.69 | 7.20 | 9.40 | 9.60 | 0.20 |
| 7 | 29.00 | 7.000 | 29.00 | 0.408 | 6.184 | 6.059 | 28.75 | 8.00 | 8.20 | 1.20 | |
| 7 | 32.00 | 7.000 | 32.00 | 0.453 | 6.094 | 6.000 | 31.70 | 6.60 | 6.80 | 2.60 | |
| 7 | 32.00 | 7.000 | 32.00 | 0.453 | 6.094 | 5.969 | 31.70 | 6.60 | 6.80 | 2.60 | |
| 7 | 35.00 | 7.000 | 35.00 | 0.498 | 6.004 | 5.879 | 34.61 | 5.60 | 5.60 | 3.80 | |
| 7 | 38.00 | 7.000 | 38.00 | 0.540 | 5.920 | 5.795 | 37.29 | 4.40 | 4.20 | 5.20 | |
| 7 | 42.70 | 7.000 | 42.70 | 0.625 | 5.750 | 5.625 | 42.59 | ||||
| 7 | 46.40 | 7.000 | 46.40 | 0.687 | 5.625 | 5.500 | 46.36 | ||||
| 7 | 50.10 | 7.000 | 50.10 | 0.750 | 5.500 | 5.375 | 50.11 | ||||
| 7 | 53.60 | 7.000 | 53.60 | 0.812 | 5.376 | 5.251 | 53.71 | ||||
| 7 | 57.10 | 7.000 | 57.10 | 0.875 | 5.250 | 5.125 | 57.29 | ||||
| 9 5/8 | 32.30 | 9.625 | 32.30 | 0.312 | 9.001 | 8.845 | 31.06 | 24.40 | |||
| 9 5/8 | 36.00 | 9.625 | 36.00 | 0.352 | 8.921 | 8.876 | 34.89 | 23.00 | 32.00 | 31.00 | 6.48 |
| 9 5/8 | 40.00 | 9.625 | 40.00 | 0.395 | 8.835 | 8.750 | 38.97 | 21.40 | 30.00 | 29.00 | 4.48 |
| 9 5/8 | 40.00 | 9.625 | 40.00 | 0.395 | 8.835 | 8.679 | 38.97 | 21.40 | 30.00 | 29.00 | 4.48 |
| 9 5/8 | 43.50 | 9.625 | 43.50 | 0.435 | 8.755 | 8.599 | 42.73 | 28.20 | 27.20 | 2.68 | |
| 9 5/8 | 47.00 | 9.625 | 47.00 | 0.472 | 8.681 | 8.525 | 46.18 | 26.60 | 25.60 | 1.08 | |
| 9 5/8 | 53.50 | 9.625 | 53.50 | 0.545 | 8.535 | 8.500 | 52.90 | 23.40 | 22.40 | -2.12 | |
| 9 5/8 | 53.50 | 9.625 | 53.50 | 0.545 | 8.535 | 8.379 | 52.90 | 23.40 | 22.40 | -2.12 | |
| 9 5/8 | 58.40 | 9.625 | 58.40 | 0.595 | 8.435 | 8.375 | 57.44 | 21.50 | 20.13 | -4.40 | |
| 9 5/8 | 58.40 | 9.625 | 58.40 | 0.595 | 8.435 | 8.279 | 57.44 | 21.50 | 20.13 | -4.40 | |
| 9 5/8 | 59.40 | 9.625 | 59.40 | 0.609 | 8.407 | 8.251 | 58.70 | ||||
| 9 5/8 | 64.90 | 9.625 | 64.90 | 0.672 | 8.281 | 8.125 | 64.32 | ||||
| 9 5/8 | 70.30 | 9.625 | 70.30 | 0.734 | 8.157 | 8.001 | 69.76 | ||||
| 9 5/8 | 75.60 | 9.625 | 75.60 | 0.797 | 8.031 | 7.875 | 75.21 | ||||
| 13 3/8 | 48.00 | 13.375 | 48.00 | 0.330 | 12.715 | 12.559 | 46.02 | 33.20 | |||
| 13 3/8 | 54.50 | 13.375 | 54.50 | 0.380 | 12.615 | 12.459 | 52.79 | 30.80 | 40.20 | ||
| 13 3/8 | 61.00 | 13.375 | 61.00 | 0.430 | 12.515 | 12.359 | 59.50 | 28.40 | 36.80 | ||
| 13 3/8 | 68.00 | 13.375 | 68.00 | 0.480 | 12.415 | 12.259 | 66.17 | 25.80 | 33.60 | ||
| 13 3/8 | 72.00 | 13.375 | 72.00 | 0.514 | 12.347 | 12.250 | 70.67 | 24.20 | 31.60 | ||
| 13 3/8 | 72.00 | 13.375 | 72.00 | 0.514 | 12.347 | 12.191 | 70.67 | 24.20 | 31.60 | ||
| 18 5/8 | 87.50 | 18.625 | 87.50 | 0.435 | 17.755 | 17.567 | 84.59 | 73.60 | 86.40 | ||
| 20 | 94.00 | 20.000 | 94.00 | 0.438 | 19.124 | 18.936 | 91.59 | 47.00 | 61.20 | 54.80 | |
| 20 | 106.50 | 20.000 | 106.50 | 0.500 | 19.000 | 18.812 | 104.23 | 41.60 | 54.80 | 48.40 | |
| 20 | 133.00 | 20.000 | 133.00 | 0.635 | 18.730 | 18.542 | 131.45 | 30.00 | 40.60 | 35.20 | |
Chemical Composition
| Chemical Composition, mass fraction (%) | |||||||||||||||
| Group | Grade | Type | C | Mn | Mo | Cr | Ni | Cu | P | S | Si | ||||
| min. | max. | min. | max. | min. | max. | min. | max. | max. | max. | max. | max. | max | |||
|
1 |
H40 | — | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — |
| J55 | — | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — | |
| K55 | — | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — | |
| N80 | 1 | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — | |
| N80 | Q | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — | |
| R95 | — | — | 0.45 | — | 1.90 | — | — | — | — | — | — | 0.03 | 0.03 | 0.45 | |
|
2 |
M65 | — | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — |
| L80 | 1 | — | 0.43 | — | 1.90 | — | — | — | — | 0.25 | 0.35 | 0.03 | 0.03 | 0.45 | |
| L80 | 9Cr | — | 0.15 | 0.30 | 0.60 | 0.90 | 1.10 | 8.00 | 10.00 | 0.50 | 0.25 | 0.02 | 0.01 | 1 | |
| L80 | 13Cr | 0.15 | 0.22 | 0.25 | 1.00 | — | — | 12.00 | 14.00 | 0.50 | 0.25 | 0.02 | 0.01 | 1 | |
| C90 | 1 | — | 0.35 | — | 1.20 | 0.25 | 0.85 | — | 1.50 | 0.99 | — | 0.02 | 0.01 | — | |
| T95 | 1 | — | 0.35 | — | 1.20 | 0.25 | 0.85 | 0.40 | 1.50 | 0.99 | — | 0.02 | 0.01 | — | |
| C110 | — | — | 0.35 | 1.20 | 0.25 | 1.00 | 0.40 | 1.50 | 0.99 | 0.02 | 0.005 | — | |||
| 3 | P110 | — | — | — | — | — | — | — | — | — | — | 0.03 | 0.03 | — | |
| 4 | Q125 | 1 | — | 0.35 | — | 1.35 | — | 0.85 | — | 1.50 | 0.99 | — | 0.02 | 0.01 | — |
- The carbon content for L80 may be increased up to 0,50 % maximum if the product isoil-quenched.
- The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the WT is less than 17,78
- The carbon content for R95 may be increased up to 0,55 % maximum if the product isoil-quenched.
- Themolybdenum content for T95 Type 1 may be decreased to 0,15 % minimum if the WT is less than 17,78
- For EW Grade P110, the phosphorus content shall be 0,020 % maximum, and the sulfur content 0,010 % maximum. NL = no limit. Elements shown shall be reported in product
Mechanical Properties
| Mechanical Properties | ||||||||||
|
Group |
Grade |
Type |
Total elongation
under load |
Yield strength MPa | Tensile strength min. | Hardeness max. | ||||
| % | min. | max. | MPa | HRC | HBW | |||||
|
1 |
H40 | — | 0.5 | 276 | 552 | 414 | — | — | ||
| 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 | — | — | |||
| R95 | — | 0.5 | 655 | 758 | 724 | — | — | |||
|
2 |
M65 | — | 0.5 | 448 | 586 | 586 | 22 | 235 | ||
| 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 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | |||
| T95 | 1 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | |||
| C110 | — | 0.7 | 758 | 828 | 793 | 30 | 286 | |||
| 3 | P110 | — | 0.6 | 758 | 965 | 862 | — | — | ||
| 4 | Q125 | 1 | 0.65 | 862 | 1034 | 931 | — | |||
- In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee
- No hardness limits, but the maximum variation is controlled by manufacturer acc
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OCTG Tubing & Casing- Specifications and Grade of steel
- PSL1 or PSL2
- Corrosion and wear conditions
Steel Tubing Pipe Guide- Specifications and Grade of steel.
- Connection type
- Working temperature
Polycore Tubing tubing Guide- Corrosive composition.
- Abrasion condition
- Working temperature.
Anti-Corrosion OCTG Tubing Guide- Corrosive composition
- Amount
- Well conditions details.