The Structure Design and Numerical Simulation Research on Downhole Hydrocyclone Desander

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A new downhole hydrocyclone desander with spiral deflector and cyclone cone was designed to apply in downhole solid-liquid separation according to the downhole operating conditions, such as a high produced liquid viscosity, narrow radial working space and closed bottom flow, etc. The structure parameters were designed primarily based on the effect of structure size on pressure drop, production capacity and separation efficiency. Numerical simulation was conducted on the base of Mixture model and Reynolds stress (RSM) turbulent model by Fluent CFD software. The geometrical model of single inlet and single outlet was established. The simulation calculations were carried out to analysis the effect of structure parameters change on separation efficiency and pressure drop, obtained the influence rules. The optimum structural parameters were confirmed. The numerical simulation results lay the foundation for the next experimental study.

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434-438

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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