DBPapers
DOI: 10.5593/SGEM2016/B12/S03.051

EXPERIMENTAL RESULTS OF A METHOD OF POWER PULSE GENERATION IN HAMMERLESS HYDROMECHANICAL DRILLING SYSTEM

A. Shadrina, A. Saruev, L. Saruev, S. Vasenin
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-56-8 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 2, 389-396 pp

ABSTRACT
The paper presents the methodology and research results of the fundamentally method of power pulse generated in a drill string based on a hammerless hydraulic mechanism. This mechanism can be used instead of percussion drilling mechanisms and also as a source of controlled elastic vibrations intended for rotary drilling machines. Hammerless hydraulic mechanisms having oil-pumping stations with pressure and drain pipelines simplify the flow chart of the drilling machine, considerably increase its efficiency in comparison with all other up-to-date hydraulic percussion machines. Owing to the high performance and efficiency of the harmless hydraulic mechanisms, they are expected to be widely used in different industries, namely in mining in borehole and well drilling; construction in trenchless pipe laying; machine engineering for vibration treatment of welded structures to reduce residual stress, etc.

Keywords: power pulse; hydraulic power cylinder; pressure pulse; nonlinear behavior of elastic element