Combined with features of flexible multi-body drilling string system and top-drive drilling system, the characteristic equation for lateral, twisting and longitudinal coupled vibration of flexible multi-body drilling string system is developed based on elastic vibration theory and finite element method, and the lateral vibration constraints is restored. Within 1700m vertical borehole, the relationship between the intrinsic frequency of flexible multi-body drilling string system and axial load, static drilling pressure, mud, length of drill collars, length of drill pipes are gained by analyzing the lateral vibration, twisting vibration and longitudinal fluid-structure vibration of flexible multi-body drilling string system by using software ANSYS. One to five step intrinsic frequencies of flexible multi-body drilling string system are gained. The research is about the theoretical basis for Well bore control theory of top drive drilling.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Vibration Analysis of Flexible Multi-Body Drill String System by FSI


    Contributors:
    Yu, Gui-Jie (author) / Fu, Lei (author) / Xiao, Wen-Sheng (author) / Yin, You-Cai (author)


    Publication date :

    2012


    Size :

    10 Seiten




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Influence of operating conditions in nonlinear vibration of a drill-string

    Almeida, Simone Faria / Vignoli, Lucas Lisbôa | SAGE Publications | 2025


    New generation drill string safety valves

    Tarr, B.A. / Luy, R. / Rabby, G. et al. | Tema Archive | 1998



    An integrated model for drill-string dynamics

    Tucker, R.W. | Online Contents | 1999