An aspect of the present invention relates to a wellbore drilling system comprising a drilling tower and a tubular racking device having at least a lower first tubular racker assembly and at least a second tubular racker assembly operable at a greater height than the first tubular racker assembly. The system further comprises one or more well center tools, each adapted for operation above the well center of the drill floor, e.g. an iron roughneck tool for making up and breaking out of threaded tubular joints. According to the present invention, the tubular racking device comprises a third tubular racker assembly which is vertically mobile and which is operable for tubular transfer between the firing line and the drilling tubulars storage rack in combination with the second tubular racker assembly, e.g. in case of failure of the first tubular racker assembly, and wherein at least one well center tool is adapted to be connected to the motion arm of the third tubular racker assembly, which well center tool is operable above the drill floor, whilst the first and second tubular racker assemblies are operable in combination for tubular transfer between the firing line and the drilling tubulars storage rack.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    WELLBORE DRILLING SYSTEM


    Beteiligte:

    Erscheinungsdatum :

    2016-03-31


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



    Wellbore drilling system

    ROODENBURG JOOP / WIJNING DIEDERICK BERNARDUS / HESSELS HENDRIK | Europäisches Patentamt | 2017

    Freier Zugriff

    WELLBORE DRILLING SYSTEM

    ROODENBURG JOOP / WIJNING DIEDERICK BERNARDUS / HESSELS HENDRIK | Europäisches Patentamt | 2017

    Freier Zugriff

    Drilling with rotary steerable system reduces wellbore tortuosity

    Weijermans, P. / Ruszka, J. / Jamshidian, H. et al. | Tema Archiv | 2001