Research Article
Tripability Analysis of Casing Strings in Directional Wells Using the Continuous Beam-Column and Buckling Theory
Table 2
Basic calculation parameters.
| Name | Value |
| Well depth | 4558 m | Kickoff point | 1267 m | Build-up rate | 4°/30 m | Radius of curvature, | 430 m | Vertical section, | 100 m | Build-up section, | 100 m | Diameter (borehole), | 215.9 mm | Diameter (casing), | 177.8 mm | Diameter (coupling), | 200.03 mm | Wall thickness (coupling), | 11.12 mm | Young’s modulus, | | Poisson’s ratio, | 0.3 | Friction coefficient | 0.2 |
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