Abstract
The article discusses issues related to vibrations of drilling string bottom layout during construction of oil and gas wells. Analysis of causes of longitudinal vibrations occurring during rotary drilling is carried out. Invention proposes using vibration dampers of impact principle of action using discrete working medium. We described a device of this type of vibration dampers for drill columns. A probabilistic model of shock vibration damper operation with discrete operating medium is given. Analysis of the model shows the efficiency of using these types of vibration dampers to eliminate high-amplitude vibrations of drill columns.
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