| Summary: | This article analyzes the possibility of increasing the efficiency of using downhole jet
pumps by swirling the injected flow. To analyze the peculiarities of the local swirling of
injected flow, design and technological parameters in the form of the inclination angle
of guiding elements, the diameter of the helical trajectory described by the fluid
particles, and the flow rates of the swirling flow are studied. Based on the application of
the conservation law of fluid momentum in adjacent jets with a parabolic pressure
distribution, equations to determine the pressure characteristic of a jet pump are
obtained, taking into account the additional dynamic pressure made by swirling the
injected flow. In the process of analyzing the obtained relations, has been set the
dependence of the relative pressure growth and the efficiency of the ejection system
under the conditions of injected flow swirling on the relative flow rate of a jet pump,
and an inversely proportional dependence of the above parameters on its main
geometric parameter in the form of the ratio of cross-sectional areas of the mixing
chamber and the nozzle.
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