Yakymechko Y. Improvement of the Technology of production of high-viscosity oils with the help of jet pumps using energy of fluctuating flows

The thesis deals with the improvement of technology of production of high-viscosity oils with the help of split flow jet pumps using energy of fluctuating flows from the up to 2000 m deep oil wells. The thesis carries out theoretical investigation of pulse-wave phenomena, particularly of cavitation, which is artificially created in the stream of operating fluid during its passage through the hydrodynamical pulsator (cavitator). The hydrodynamic analysis of the process of cavitation in the swirling flow was held, which has indicated that one part of kinetic energy that is supplied to the jet device is used for the work of the pump and for the overcoming of friction, and another one – for the incrementation of internal heat of oil.