{"id":292,"date":"2020-10-18T18:47:37","date_gmt":"2020-10-18T15:47:37","guid":{"rendered":"https:\/\/adcr.ru\/?p=292"},"modified":"2020-10-18T18:48:14","modified_gmt":"2020-10-18T15:48:14","slug":"2020-2-6","status":"publish","type":"post","link":"https:\/\/adcr.ru\/en\/2020-2-6\/","title":{"rendered":"\"Bulletin of the Association of Drilling Contractors\" \u21162, 2020"},"content":{"rendered":"
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\"\"<\/strong><\/h3>\n

THE AMPLITUDE OF THE LONGITUDINAL VIBRATIONS OF THE DRILL BIT AND THE LOWER END OF THE DRILL STRING AS A SHOCK-ABSORBED SYSTEM

<\/strong>Ganjumyan R.A. \u2013 Candidate of Technical sciences, Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI),
drill@msgpa.ru drill@msgpa.ru<\/a>
Bronnikov I.D. \u2013 Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI),
drill@msgpa.ru drill@msgpa.ru<\/a>
Tungusov A.A. \u2013 Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI),
drill@msgpa.ru drill@msgpa.ru<\/a>
Nakhangov Kh.N. \u2013 postgraduate student, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI),
drill@msgpa.ru drill@msgpa.ru<\/a>
<\/em><\/strong>
\u0423\u0414\u041a 622.24

Key words: <\/strong>drill string, elastic element, drill bit movement, dynamic stiffness, harmonic law, concentrated mass, amplitude of disturbing force.

The article attempts to theoretically examine the problem of changing the amplitude of the vertical movements of the drill bit in the case when an elastic element is installed above it.<\/p>\n

THE AMPLITUDE OF THE LONGITUDINAL VIBRATIONS OF THE DRILL BIT AND THE LOWER END OF THE DRILL STRING AS A SHOCK-ABSORBED SYSTEM

<\/strong>Ganjumyan R.A. \u2013 Candidate of Technical sciences, Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru<\/a>
Bronnikov I.D. \u2013 Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru<\/a>
Tungusov A.A. \u2013 Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru<\/a>
Nakhangov Kh.N. \u2013 postgraduate student, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru<\/a>
<\/em>
<\/strong>Key words: <\/strong>drill string, elastic element, drill bit movement, dynamic stiffness, harmonic law, concentrated mass, amplitude of disturbing force.

The article attempts to theoretically examine the problem of changing the amplitude of the vertical movements of the drill bit in the case when an elastic element is installed above it.<\/p>\n

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