The Analysis Of Flow Field And Optimization Of The Components In The Efficient Test Separator Based On Fluent

The three-phase separator is primarily used to separate the three phase and measure them to evaluate the ability of new development wells and analysis the mixture fluid obtained wellhead pressure, temperature, productivity, physical properties and other parameters of the reservoir formation for onshore and offshore platforms. The internal structure of the three-phase separator is complex, including cyclone, the below box type feed structure, a maze components, inclined plate group and polymer structure. Because of the difficulty of directed numerical simulation for the three-phase separator, the model is simplified and the internal components are analyzed separately. The numerical simulation of the cyclone is used to optimize the structural parameters of the cyclone to obtain better separation efficiency with Reynolds stress model; The numerical simulation of board is used to contrast the velocity of the single-phase water to select the feed hole area 40 times of the board with concentric circles hole; The numerical simulation of steady flow board is used to contrast the differences of the velocity field to select the maze board as the steady flow board; The numerical simulation of inclined plate groups is used to analyze the separation efficiency of gas and oil; The numerical simulation of coalescence board is used to analyze the separation efficiency of oil and water to select the TP board. The numerical simulation result of all the internal components and overall the separator with gas-liquid separation and oil-water separation showed that the test separator has an ideal separation efficiency and it can meet the design requirements of liquid containing gas≤5%, water containing oil≤5%, oil containing water≤5%.