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Fundamental and applied issues of mining

2019 year, number 2

SUBSTANTIATION OF DESIGN AND ENERGY PARAMETERS OF HIGH-SPEED DOWNHOLE UNBALANCED VIBRATION SOURCE

A. D. Flyantikov, A. V. Savchenko, M. N. Tsupov, D. S. Evstigneev
Chinakal Institute of Mining, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russia
Keywords: Скважинный дебалансный источник, моделирование, вибровоздействие, нефть, Downhole unbalanced source, modeling, vibration effect, oil

Abstract

Design solutions related to the creation of a high-speed unbalanced source of harmonic oscillations are proposed, mining and geological conditions for its application are substantiated, and flow diagrams for its operation in a productive well are proposed. Based on the modal and static analysis of design of the shaft with added mass, critical frequencies of the source, as well as stresses and strains occurring during its operation at these frequencies are determined. Technical requirements are formulated for its trouble-free operation in the well together with an electric centrifugal pump, provided that mechanical impurities are present in the produced fluid.