Dynamic analysis of drillstring with FEM by considering wellbore-drillstring contact
Date
2012-02-27Author
Maziar, Mohammadzadeh
Mohammadreza, Ghazavi
Mohammad, Sahebkar
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Show full item recordAbstract
In this research,the finite element method (FEM) is
applied to analyze the drillstring vibration. The contact between
different parts of the drillstring and the borehole wall has been
considered which was ignored by other FEM formulations. The
finite element formulation is then integrated into a computational
scheme for calculating the natural frequencies of the
drillstring,the capability of the developed computational scheme
tested for dynamic response calculations. Comparisons are made
wherever possible with recorded results available in the
literature.
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