Understanding the Oil Casing Weight Calculation Method and Its Influencing Factors.
Oil casing weight calculation is an important part of Oil and Gas exploration and production. It is used to determine the weight of the Casing string that will be used in the wellbore. This calculation is based on the size and type of casing, the Length of the casing string, and the weight of the Material used to make the casing.
The weight of the casing string is determined by multiplying the weight of the material used to make the casing by the length of the casing string. This calculation is then adjusted for the specific gravity of the material used to make the casing. The specific gravity of the material is determined by the density of the material and the weight of the material per unit volume.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the temperature of the wellbore. This is done by subtracting the weight of the water displaced by the casing string at the temperature of the wellbore from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the pressure of the wellbore. This is done by subtracting the weight of the water displaced by the casing string at the pressure of the wellbore from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the corrosion allowance. This is done by subtracting the weight of the corrosion allowance from the total weight of the casing string. This calculation is based on the corrosion rate of the material used to make the casing and the length of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
| Calculated Mass c | |||||||||||
| Nominal Linear Mass T& C b,c | Wall Thick- ness | em, Mass Gain or Loss Due to End Finishing d | |||||||||
| Labels a | 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 |
| 7 | 17 | 177.8 | 25.6 | 5.87 | 166.06 | 162.88 | 24.89 | 7.61 | — | — | — |
| 7 | 20 | 177.8 | 29.91 | 6.91 | 163.98 | 160.8 | 29.12 | 6.74 | — 7.94 | — 8.28 | — 0.58 |
| 7 | 23 | 177.8 | 34.67 | 8.05 | 161.7 | 158.75 e 158.52 156.24 153.90 | 33.7 | 6.26 | 7.94 | 8.28 | 0.58 |
| 7 | 23 | 177.8 | 34.67 | 8.05 | 161.7 | 152.40 e | 33.7 | 6.26 | 7.37 | 7.65 | –0.54 |
| 7 | 26 | 177.8 | 39.14 | 9.19 | 159.42 | 151.6 | 38.21 | 5.79 | 6.79 | 7.13 | –0.69 |
| 7 | 29 | 177.8 | 43.6 | 10.36 | 157.08 | 149.32 | 42.78 | — | 6.23 | 6.4 | –1.31 |
| 7 | 32 | 177.8 | 47.92 | 11.51 | 154.78 | 147.18 | 47.2 | — | 6.23 | 6.4 | –1.31 |
| 7 | 32 | 177.8 | 47.92 | 11.51 | 154.78 | 142.86 | 47.2 | — | 5.68 | 5.79 | –1.91 |
| 7 | 35 | 177.8 | 52.09 | 12.65 | 152.5 | 139.72 | 51.52 | — | 5.18 | 5.24 | –2.47 |
| 7 | 38 | 177.8 | 56.1 | 13.72 | 150.36 | 136.52 | 55.52 | — | — | — | — |
| 7 | 42.7 | 177.8 | 63.84 | 15.88 | 146.04 | 133.38 | 63.41 | — | — | — | — |
| 7 | 46.4 | 177.8 | 69.35 | 17.45 | 142.9 | 130.18 | 69.01 | — | — | — | — |
| 7 | 50.1 | 177.8 | 74.85 | 19.05 | 139.7 | 74.58 | — | — | — | — | |
| 7 | 53.6 | 177.8 | 80.21 | 20.62 | 136.56 | 79.93 | — | — | — | — | |
| 7 | 57.1 | 177.8 | 85.42 | 22.22 | 133.36 | 85.25 | — | ||||
| 7 5/8 | 24 | 193.68 | 35.72 | 7.62 | 178.44 | 175.26 | 34.96 | 7.11 | — 8.58 | — 9.12 | — 2.59 |
| 7 5/8 | 26.4 | 193.68 | 39.29 | 8.33 | 177.02 | 173.84 | 38.08 | 6.78 | 7.91 | 8.38 | 1.84 |
| 7 5/8 | 29.7 | 193.68 | 44.2 | 9.52 | 174.64 | 171.46 | 43.24 | — | 7.13 | 7.51 | 0.98 |
| 7 5/8 | 33.7 | 193.68 | 50.15 | 10.92 | 171.84 | 168.66 | 49.22 | — | 6.16 | 6.44 | – 0.10 |
| 7 5/8 | 39 | 193.68 | 58.04 | 12.7 | 168.28 | 165.1 | 56.68 | — | 5.32 | 5.5 | –1.03 |
| 7 5/8 | 42.8 | 193.68 | 63.69 | 14.27 | 165.14 | 161.96 | 63.14 | — | 4.87 | 5.01 | –1.52 |
| 7 5/8 | 45.3 | 193.68 | 67.41 | 15.11 | 163.46 | 160.28 | 66.54 | — | 4.48 | 4.57 | –1.96 |
| 7 5/8 | 47.1 | 193.68 | 70.09 | 15.88 | 161.92 | 158.74 | 69.63 | — | — | — | — |
| 7 5/8 | 51.2 | 193.68 | 76.19 | 17.45 | 158.78 | 155.6 | 75.84 | — | — | — | — |
| 7 5/8 | 55.3 | 193.68 | 82.3 | 19.05 | 155.58 | 152.4 | 82.04 | — | |||
| 7 3/4 | 46.1 | 196.85 | 68.6 | 15.11 | 166.63 | 165.10 e | 67.72 | — | — | — | — |
| 7 3/4 | 46.1 | 196.85 | 68.6 | 15.11 | 166.63 | 163.45 | 67.72 | — | — | — | — |
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
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The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This is done by subtracting the weight of the water displaced by the casing string from the total weight of the casing string. This calculation is based on the density of the water and the volume of the casing string.
The weight of the casing string is then adjusted for the buoyancy of the casing string. This
