Investigation of drill string dynamics using probabilistic methods
Viktor Svitlytskyi,
Sergii Iagodovskyi,
Iryna Boshkova
Abstract:The object of research is a drill string. The work is directed to the study of the drill string dynamics and its influence on the rock, which is drilled using probabilistic methods.
It is shown that the nature of the vibrations of the top of the drill string and the downhole signals are different and have a stationary random character. It is proved that the process at the output of the drill string, taking into account random disturbances, is narrow-band (quasi-harmonic) or close to it. It is found that the en… Show more
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