Optimization of Working Parameters for Oil-Water Separation Cyclone of Produced Fluid of Heavy Oil
Heavy oil is more difficult to be separated than conventional oil.On the basis of helical flow chan-nel cyclone,an efficient treatment process flow for produced fluid of heavy oil was designed.Then,the numerical simulation method was used to conduct optimization simulation and comparative analysis on the operating parameters of the cyclone separator,and study the influence of different inlet flow rates,diversion ratios and inlet volume frac-tion of water on the flow field and overall separation efficiency.The study results show that the helical flow channel structure of the cyclone achieves coalescence of oil phase in heavy oil,that is,achieves oil and water separation of produced fluid of heavy oil.When the inlet flow rate,diversion ratio and water cut of Ⅰ-1 cyclone are 5 m3/h,0.4 and 95%respectively,and the diversion ratio of Ⅰ-2 cyclone is 0.3,the separation efficiency of Ⅰ-1 andⅠ-2 cyclones is 96.44%and 99.76%respectively.When the inlet oil mass concentration is 15 200 mg/L,the oil mass concentration at the first and second stages of apexes is 1 275 mg/L and 1 359 mg/L respectively.The study conclusions provide reference for the process design and operation parameter optimization of heavy oil treatment.
produced fluid of heavy oiloil and water separationcycloneoperating parameter optimiza-tionseparation efficiency
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