V. K. Bakhtin, M. S. Deryabin, D. A. Kas’yanov, S. A. Manakov, D. R. Shakurov
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Abstract
We present the results of direct measurement of vibrations of the drill-string bottom structures in the drilling process. Special attention during the measurements is paid to the high-frequency part of the vibration spectrum. The vibrations were recorded using a specially manufactured downhole noise recorder with an integrated three-component accelerometer and the temperature and externalpressure sensors. This recorder was adapted for embedding directly into the drill string in the bottomhole assembly area. Vibration signals were recorded in a frequency interval of up to 25 kHz. The full-scale measurements were performed for all possible borehole operations carried out for both controlled (horizontal) and vertical drilling. This work presents the distribution functions and power spectral densities of vibration noise for various drilling operations and conditions.
期刊介绍：
Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as:
Radio astronomy;
Plasma astrophysics;
Ionospheric, atmospheric and oceanic physics;
Radiowave propagation;
Quantum radiophysics;
Pphysics of oscillations and waves;
Physics of plasmas;
Statistical radiophysics;
Electrodynamics;
Vacuum and plasma electronics;
Acoustics;
Solid-state electronics.
Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April.
All articles are peer-reviewed.
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