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Author

R. Rakhatova

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Open access Sep 2026

Nonlinear longitudinal oscillations of a drilling-dynamic system during a trip-run operation

This article examines a drill string modeled as a long elastic rod connecting the bit and surface equipment. The drill string is considered the primary element of a drilling dynamic system (DDS). A dynamic model is created, and equations for the DDS’s longitudinal oscillations are derived. A method for solving wave equ...

L. Mardanova, A. Karimova, Z. Julamanova et al. · 0 citations

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