On the issue concerning improvement of a mud preparation technology at the expense of hydrodynamic cavitation

Abstract

Purpose is to improve the technology of drilling mud by applying hydrodynamic cavitation. Research methodology is represented by the theoretical and experimental studies of hydrodynamic cavitation, performed with the help of modern methods of analytical analysis and experimental studies, i.e. by using general principles of mathematical and physical modeling, methods of processing research results in EXCEL, SolidWorks for further analysis. Research results. Frequency of cavitation oscillations according to the parameters of a device for creating hydrodynamic cavitation has been calculated. The formula for determining the dispersion time of the washing liquid material by the frequency of cavitation oscillations has been theoretically substantiated and obtained. A process of moving drilling fluid in the device using the appropriate software in the SolidWorks package has been studied. The results of theoretical research have been confirmed by practical research and chosen as a basis for substantiation and development of the methods for preparing drilling fluids. Originality is represented by modeling and research of the process of hydrodynamic cavitation in a cavitation device using flow visualization using SolidWorks software. This approach helped substantiate and predict the pressure and flow velocity at each point of transition of the diameters of a cavitation dispersant. This, in turn, has made it possible to reduce hydraulic resistance and improve the device design to implement a technology of preparation of drilling fluids due to hydrodynamic cavitation. This approach has allowed substantiating and performing virtual experiments on the technology of preparation of drilling fluids; that has helped select rational design parameters of the cavitation disperser and save a lot of money and time on the production of bench samples of the device, including various design features. Practical implications. Basing on the results of both theoretical and experimental studies, the development of advanced technology for the preparation of stable drilling fluids be applying rational indicators of hydrodynamic cavitation has been substantiated and proposed.