采出液粘度对三相分离旋流器性能的影响

his paper compared the velocity field, pressure characteristics and separation efficiency of gas-liquid-solid three- phase separation cyclone used for the ASP flooding produced fluid treating with viscosity changing, using Reynolds stress model（RSM） of the computational fluid dynamics（CFD）software. Results showed that when the viscosity is less than or equal to 6.42mPaos, although affected by the increase of viscosity the tangential velocity of the hydrocyclone decreased by 12.4%, but on the whole velocity field has less effect. In the viscosity distribution range, de-gas and de-sand efficiency of the hydrocyclone were higher than 80%.The rise of viscosity has great influence on the cyclone pressure drop, the overflow pressure drop decreased, underflow pressure drop increased. This paper can provide a reference for the design of three phase separator with higher viscosity medium separation. The analysis of the influence of different viscosity changes on the velocity field, pressure characteristics and the effect of the degassing of the three phase separator is carried out.