A. M. Zorin, L. K. Makarkin, O. V. Mishchenkova

THE EFFECT OF PASSIVE INLET PRESSURE ON THE JET PUMP EJECTION PROCESS

The paper deals with the mathematical simulation of the hydrodynamics of a jet ejection pump with variable internal geometry. The design features of the pump expand its applicability at oil field facilities due to the pre-adjustment of the device to the production parameters of the field (fluid viscosity, required daily flow rate, presence of impurities, etc.). This paper studies the effect of pressure at the passive inlet on the ejection coefficient of the jet pump. The pressure ranges from 4 to 16 MPa. The openFOAM package designed to solve problems of continuum mechanics in a stationary setting was used for the simulation. It is shown that the pump can be operated until the ejected flow pressure reaches 10 MPa. At higher pressures, the pump begins to operate in the active flow diversion mode, and it can be used to pump fluid into the well.

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