Numerical Simulation and optimization of cyclone for pre-separation of gas and oil in well test separator

The comprehensive numerical simulation and analysis of flow field in the three-dimensional model of cyclone in three-phase test separation were performed by Fluent. Using RSM, the turbulence numerical simulation method, the relationship was researched between each parameter and the separation efficiency of cyclone, such as pressure, coning, overflow pipe diameter, then select the appropriate parameter values and obtain a optimal theoretical model. The results showed that operating pressure and flow rate were key parameters affected the separation efficiency of cyclone, the form and the angle of inlet, coning, overflow pipe diameter and insertion depth had an effect on the separation efficiency. Through numerical simulation and optimization, efficient cyclone for three-phase test separator could be obtained.