"Bulletin of the Association of Drilling Contractors" №2, 2020

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

Ganjumyan R.A. – 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
Bronnikov I.D. – 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
Tungusov A.A. – 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
Nakhangov Kh.N. – postgraduate student, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI),
drill@msgpa.ru drill@msgpa.ru

УДК 622.24

Key words: 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.

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

Ganjumyan R.A. – Candidate of Technical sciences, Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru
Bronnikov I.D. – Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru
Tungusov A.A. – Candidate of Technical sciences, Associate Professor, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru
Nakhangov Kh.N. – postgraduate student, Department of Modern Drilling Technologies, Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), drill@msgpa.ru

Key words: 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.

The year 2021 number 1nd issue of the quarterly journal, "Bulletin of the Association of Drilling Contractors", is now available "Bulletin of the Association of Drilling Contractors"

ISSN 2073-9877

The scientific and technical journal, “Bulletin of the Association of Drilling Contractors”, is listed by the Higher Attestation Commission of the RF Ministry of Education and Science as one of the leading refereed journals and publications that feature main scientific results of doctoral and candidate’s dissertations.

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