Methods and systems for mitigating drilling vibrations

Details Methods and systems for mitigating drilling vibrations Methods and systems for mitigating drilling vibrations

E - Fixed Constructions

21

B

E21B 10/00 (2006.01) E21B 12/00 (2006.01) E21B 41/00 (2006.01)

Patent

CA 2724453

Methods and systems of reducing drilling vibrations include generation a vibration performance index using at least one frequency-domain model having a velocity-dependent friction relationship. The vibration performance index may be used to aid in the design or manufacture of a drill tool assembly. Additionally or alternatively, the vibration performance index may inform drilling operations to reduce vibrations.

La présente invention porte sur des procédés et des systèmes permettant de réduire les vibrations de forage et consistant à produire un classement des vibrations au moyen d'au moins un modèle du domaine fréquence ayant une relation de frottement dépendant de la vitesse. Le classement des vibrations peut être utilisé comme aide pour concevoir ou produire un ensemble outil de forage. De plus ou dans un autre mode de réalisation, le classement des vibrations peut être utilisé comme informations pendant les opérations de forage pour réduire les vibrations.

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