Casing Tubing API 5CT, J55, N80, R2/R3/API 5b Oil Drilling Equipment
Introduction to casing Tubing API 5CT casing tubing is an essential component in the oil drilling industry. It plays a crucial role in the extraction of Oil and Gas from…
Introduction to casing Tubing API 5CT
Casing tubing is an essential component in the oil drilling industry. It plays a crucial role in the extraction of Oil and Gas from the earth’s surface. In this article, we will introduce you to Casing tubing api 5CT, specifically focusing on the J55, N80, R2/R3/API 5b grades of casing tubing.
Casing tubing is a Pipe that is inserted into a wellbore to provide structural support and prevent the collapse of the well. It is made from High-Quality steel and is designed to withstand high pressure and extreme temperatures. Casing tubing is available in various sizes and grades, depending on the specific requirements of the drilling operation.
API 5CT is a standard set by the American Petroleum Institute (API) that specifies the technical requirements for casing tubing used in the oil and gas industry. It ensures that the casing tubing meets the necessary quality and performance standards. The API 5CT standard covers various grades of casing tubing, including J55, N80, and R2/R3/API 5b.
J55 is a commonly used Grade of casing tubing. It has a minimum yield strength of 55,000 psi and a minimum tensile strength of 75,000 psi. J55 casing tubing is suitable for shallow to medium-depth wells and is known for its excellent resistance to corrosion. It is often used in areas with high levels of hydrogen sulfide (H2S) gas.
| api 5ct l80 Casing TubingDimensions and Masses for Standard Casing and for Casing Threaded with | |||||||||||
| API Round Thread and Buttress Thread | |||||||||||
| 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 |
| 4 1/2 | 9.5 | 114.3 | 14.38 | 5.21 | 103.88 | 100.7 | 14.02 | 3.64 | — | — 4.53 | — 1.12 |
| 4 1/2 | 10.5 | 114.3 | 15.73 | 5.69 | 102.92 | 99.74 | 15.24 | 3.33 | — 3.61 | 4.32 | 0.91 |
| 4 1/2 | 11.6 | 114.3 | 17.38 | 6.35 | 101.6 | 98.42 | 16.91 | 3.18 | 3.35 | 4.07 | 0.6 |
| 4 1/2 | 13.5 | 114.3 | 19.87 | 7.37 | 99.56 | 96.38 | 19.44 | — | 3.53 | 3.64 | 0.24 |
| 4 1/2 | 15.1 | 114.3 | 22.69 | 8.56 | 97.18 | 94 | 22.32 | — | |||
| 5 | 11.5 | 127 | 17.19 | 5.59 | 115.82 | 112.64 | 16.74 | 4.32 | — 4.85 | — 5.38 | — 1.24 |
| 5 | 13 | 127 | 19.69 | 6.43 | 114.14 | 110.96 | 19.12 | 4 | 4.51 | 4.99 | 0.61 |
| 5 | 15 | 127 | 22.69 | 7.52 | 111.96 | 108.78 | 22.16 | 3.71 | 4.52 | 4.4 | 0.22 |
| 5 | 18 | 127 | 27.19 | 9.19 | 108.62 | 105.44 | 26.7 | — | 3.45 | 3.76 | –0.62 |
| 5 | 21.4 | 127 | 32.13 | 11.1 | 104.8 | 101.62 | 31.73 | — | 3.15 | 3.42 | –0.96 |
| 5 | 23.2 | 127 | 34.76 | 12.14 | 102.72 | 99.54 | 34.39 | — | 2.99 | 3.23 | –1.14 |
| 5 | 24.1 | 127 | 36.15 | 12.7 | 101.6 | 98.42 | 35.8 | — | |||
| 5 1/2 | 14 | 139.7 | 20.91 | 6.2 | 127.3 | 124.12 | 20.41 | 4.6 | — 5.26 | — 5.71 | — 0.87 |
| 5 1/2 | 15.5 | 139.7 | 23.48 | 6.98 | 125.74 | 122.56 | 22.85 | 4.36 | 5.31 | 5.41 | 0.58 |
| 5 1/2 | 17 | 139.7 | 25.72 | 7.72 | 124.26 | 121.08 | 25.13 | 4.14 | 4.5 | 4.84 | 0.45 |
| 5 1/2 | 20 | 139.7 | 30.05 | 9.17 | 121.36 | 118.18 | 29.52 | — | 4.37 | 4.31 | -0.52 |
| 5 1/2 | 23 | 139.7 | 34.05 | 10.54 | 118.62 | 115.44 | 33.57 | — | — | — | — |
| 5 1/2 | 26.8 | 139.7 | 40.15 | 12.7 | 114.3 | 111.12 | 39.78 | — | — | — | — |
| 5 1/2 | 29.7 | 139.7 | 44.47 | 14.27 | 111.16 | 107.98 | 44.14 | — | — | — | — |
| 5 1/2 | 32.6 | 139.7 | 48.74 | 15.88 | 107.94 | 104.76 | 48.49 | — | — | — | — |
| 5 1/2 | 35.3 | 139.7 | 52.8 | 17.45 | 104.8 | 101.62 | 52.61 | — | — | — | — |
| 5 1/2 | 38 | 139.7 | 56.82 | 19.05 | 101.6 | 98.42 | 56.68 | — | — | — | — |
| 5 1/2 | 40.5 | 139.7 | 60.64 | 20.62 | 98.46 | 95.28 | 60.55 | — | — | — | — |
| 5 1/2 | 43.1 | 139.7 | 64.41 | 22.22 | 95.26 | 92.08 | 64.38 | — | |||
| 6 5/8 | 20 | 168.28 | 29.76 | 7.32 | 153.64 | 150.46 | 29.06 | 5.58 | 6.23 | 6.35 | 0.89 |
| 6 5/8 | 24 | 168.28 | 35.72 | 8.94 | 150.4 | 147.22 | 35.13 | 4.42 | 5.48 | 5.52 | 0.68 |
| 6 5/8 | 28 | 168.28 | 41.67 | 10.59 | 147.1 | 143.92 | 41.18 | — | 4.73 | 4.71 | –0.75 |
| 6 5/8 | 32 | 168.28 | 47.62 | 12.06 | 144.16 | 140.98 | 46.46 | — | 4.73 | 4 | –1.46 |
N80 is another popular grade of casing tubing. It has a minimum yield strength of 80,000 psi and a minimum tensile strength of 95,000 psi. n80 casing tubing is suitable for medium to deep wells and is known for its high resistance to corrosion and cracking. It is often used in harsh environments and offshore drilling operations.
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R2/R3/API 5b refers to the Length and thread type of the casing tubing. R2 refers to a range of lengths between 27 and 30 feet, while R3 refers to lengths between 38 and 45 feet. API 5b specifies the thread type, which ensures compatibility with other drilling equipment. The R2/R3/API 5b specification is crucial for ensuring the proper installation and functioning of the casing tubing.
In conclusion, casing tubing API 5CT is a vital component in the oil drilling industry. It provides structural support and prevents the collapse of the well. The J55, N80, and R2/R3/API 5b grades