Simulation of flow characteristics of hydraulic suspension system of gelled crude oil based on population balance
The study on the flow characteristics of hydraulic suspension system of gelled crude oil is the key to realize unheat-ed gathering and transportation in high water cut oilfield.In recent years,with the development of computational fluid dynam-ics,numerical simulation has become an effective tool to study the flow characteristics of complex fluids.Based on the popu-lation balance model,the key gelled oil particle collision aggregation and shear breakage functions were introduced to de-scribe the interaction among particle groups.The solution was obtained under the three-dimensional pipeline model and the simulation results were verified by experimental data in the literature.The results show that with the increase of flow rate or water cut,the mean diameter of gelled oil particles decreases,the particle diameter takes a circular distribution,and the dis-tribution of oil phase is more uniform,which is not easy to cause gelled oil wall deposition.In the high water cut stage,the influence of flow rate increasing on the increase of flow pressure drop is dominant,but the influence of water cut is not obvi-ous.The decrease of particle diameter or gelled oil deposition can also lead to an increase in flow pressure drop.
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