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A study on the excavation rate of directional drilling using finite element method  

Jung, Tae Joon (School of Mechanical Engineering, sejong University)
Shin, Younggy (School of Mechanical Engineering, sejong University)
Publication Information
Plant Journal / v.17, no.3, 2021 , pp. 42-46 More about this Journal
Abstract
The equation of motion of the drill string along the excavation trajectory was analyzed using the Lagrangian approach together with the finite element method (FEM). A drill string of circular cross section is constructed by combining a plurality of circular axes each having 12 degrees of freedom (DOF). FEM analysis can observe the vibration and dynamic changes of the entire drill string, and it is easy to apply comprehensive boundary conditions to reproduce the simulation of a realistic drill string. In this study, the constructed FEM motel was simulated. In order to apply the FEM program to the actual drill trajectory, the dynamic analysis of the curved beam was verified by comparison with the actual values. The dynamic change over time was observed.
Keywords
Finite element method; Drill-string dynamics;
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1 Soares, C., Daigle, H. and Gray, K., 2016. Evaluation of PDC bit ROP models and the effect of rock strength on model coefficients. Journal of Natural Gas Science and Engineering, 34, pp.1225-1236.   DOI
2 Khulief, Y.A. and Al-Naser, H., 2005. Finite element dynamic analysis of drillstrings. Finite elements in analysis and design, 41(13), pp.1270-1288   DOI
3 J.J. Bailey, I. Finnie, An analytical study of drillstring vibration, J. Eng. Ind. ASME Trans. 82 (2) (1960) 122-128.   DOI
4 B. Bathe, FEM Procedure in Electrical Engineering Analysis. Prentice Hall, Inc., 1982.
5 Tianheng Feng, (2019) Modeling and control of Drillstring dynamics for Vibration Suppression, Ph. D. Thesis, The university Texas at Austin, U.S.A.
6 Hareland, G., and P.R. Rampersad, "Drag Bit Model Including Wear," paper SPE 26957 to be presented at the m LACPEC Conference, Buenos Aires, Argentina, Apr. 27-29,1994