The Benefits of Using Casing Pipe in Oil and gas drilling Projects
The use of casing pipe in oil and gas drilling projects is essential for the successful completion of the project. Casing pipe is a type of steel pipe that is used to line the walls of a borehole, providing structural integrity and preventing the borehole from collapsing. It is also used to isolate different zones of the borehole, allowing for the safe and efficient extraction of oil and gas.
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In addition, casing pipe can also help to reduce the risk of blowouts. Blowouts occur when the pressure of the oil and gas exceeds the pressure of the surrounding earth, causing the well to erupt. Casing pipe helps to contain this pressure, reducing the risk of a blowout.
| Labels a | Calculated Mass c | ||||||||||
| Nominal Linear Mass T& C b,c | Wall Thick- ness | em, Mass Gain or Loss Due to End Finishing d | |||||||||
| Outside diameter | Inside Diameter | Drift Diameter | Plain- end | kg | |||||||
| Round thread | Buttress Thread | ||||||||||
| wpe | |||||||||||
| D | kg/m | t | D | mm | kg/m | Short | Long | RC | SCC | ||
| mm | mm | mm | |||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 13 3/8 | 48 | 339.72 | 71.43 | 8.38 | 322.96 | 318.99 | 68.48 | 15.04 | — | — 17.91 | — |
| 13 3/8 | 54.5 | 339.72 | 81.1 | 9.65 | 320.42 | 316.45 | 78.55 | 13.88 | — | 16.44 | — |
| 13 3/8 | 61 | 339.72 | 90.78 | 10.92 | 317.88 | 313.91 | 88.55 | 12.74 | — | 14.97 | — |
| 13 3/8 | 68 | 339.72 | 101.19 | 12.19 | 315.34 | 311.37 | 98.46 | 11.61 | — | 14.97 | — |
| 13 3/8 | 68 | 339.72 | 101.19 | 12.19 | 315.34 | 311.37 | 98.46 | 11.67 f | — | 14.33 | — |
| 13 3/8 | 72 | 339.72 | 107.15 | 13.06 | 313.6 | 311.15 e | 105.21 | 10.98 | — | 13.98 | — |
| 13 3/8 | 72 | 339.72 | 107.15 | 13.06 | 313.6 | 311.15 e 309.63 309.63 | 105.21 | 10.91 f | — | 14.33 | — |
| 13 3/8 | 72 | 339.72 | 107.15 | 13.06 | 313.6 | 105.21 | 10.98 | — | 13.98 | — | |
| 13 3/8 | 72 | 339.72 | 107.15 | 13.06 | 313.6 | 105.21 | 10.91 e | — | — | ||
| 16 | 65 | 406.4 | 96.73 | 9.53 | 387.4 | 382.57 | 96.73 | 18.59 | — | — 20.13 | — |
| 16 | 75 | 406.4 | 111.61 | 11.13 | 384.1 | 379.37 | 108.49 | 16.66 | — | 18.11 | — |
| 16 | 84 | 406.4 | 125.01 | 12.57 | 381.3 | 376.48 | 122.09 | 14.92 | — | — | — |
| 16 | 109 | 406.4 | 162.21 | 16.66 | 373.1 | 368.3 | 160.13 | — | — | — | |
| 18 5/8 | 87.5 | 473.08 | 130.21 | 11.05 | 450.98 | 446.22 | 125.91 | 33.6 | — | 39.25 | — |
| 20 | 94 | 508 | 139.89 | 11.13 | 485.7 | 480.97 | 136.38 | 20.5 | 27.11 | 24.78 | — |
| 20 | 94 | 508 | 139.89 | 11.13 | 485.7 | 480.97 | 136.38 | 20.61 | 27.26 g 24.27 17.84 | 24.78 | — |
| 20 | 106.5 | 508 | 158.49 | 12.7 | 482.6 | 477.82 | 155.13 | 18.22 | 22 | — | |
| 20 | 133 | 508 | 197.93 | 16.13 | 475.7 | 470.97 | 195.66 | 13.03 | 16.02 | — | |
| NOTE See also Figures D.1, D.2, and D.3. | |||||||||||
| a Labels are for information and assistance in ordering. | |||||||||||
| b Nominal linear masses, threaded and coupled (Column 4) are shown for information only. | |||||||||||
| c The densities of martensitic chromium steels (L80 types 9Cr and 13Cr) are less than those of carbon steels; The masses shown are therefore not accurate for martensitic chromium steels; A mass correction factor of 0.989 shall be used. | |||||||||||
| d Mass gain or loss due to end finishing; See 8.5. | |||||||||||
| e Drift diameter for most common bit size; This drift diameter shall be specified in the purchase agreement and marked on the pipe; See 8.10 for drift requirements. | |||||||||||
| f Based on 758 mPa minimum yield strength or greater. | |||||||||||
| g Based on 379 mPa minimum yield strength. | |||||||||||
Finally, casing pipe can also help to reduce the cost of drilling projects. By providing structural integrity and isolating different zones of the borehole, casing pipe can reduce the amount of time and money spent on drilling. This can help to make drilling projects more cost-effective and efficient.
Overall, the use of casing pipe in oil and gas drilling projects offers a number of benefits. It provides structural integrity to the borehole, isolates different zones of the borehole, reduces the risk of blowouts, and can help to reduce the cost of drilling projects. For these reasons, it is essential for any successful oil and gas drilling project.