Електродинамічне гальмо лебідки бурової установки

Abstract. Problem. In the oil and gas industry, especially when drilling deep wells, in addition to the band and disc-pad brakes of the drilling winch, an electrodynamic brake is increasingly being used as the main one, the purpose of which is to maintain the drill string in a static and dynamic state in the well. The main disadvantage of the latter is the need for constant cooling of the T-shaped magnetic rotors, which are located on the lifting shaft of the drilling winch. Therefore, improving the cooling system of the electrodynamic brake is an urgent problem. Goal. The purpose and objective of the article is to improve the cooling system of the T-shaped magnetic brake rotors located on the lifting shaft of the drilling rig winch. Methodology. In the process of studying the issue, the analytical and decision-making methods were used to improve the cooling system of T-shaped magnetic brake rotors. Results. Thus, the problem of the theoretical part of the electrodynamic brake, forced cooling with a nanofluid, and a constructive solution to reduce eddy currents generated by point effects have been solved. Originality. Application of nanopowders of low-melting metals of various modifications, diluted with water or acetone, for the liquid, which allows for a significant increase in the thermal conductivity coefficient of the nanofluid and thereby improves the efficiency of forced cooling of the brake rotor body. Practical value. Improving the cooling system of the electrodynamic brake allows you to increase its braking efficiency by 15% significantly and, as a result, reduce the downtime of the drilling rig and the costs associated with the repair and replacement of rotors