In recent years,jet pump injection and production integration technology has been widely used in offshore heavy oil fields.In order to promote the large-scale popularization of this technology,the sealing performance and flow situation near the ball head of jet pump were analyzed by the method of experiment and numerical simulation.The conclusion is as follows:the sealing performance of the by-pass valve under normal and high temperature conditions is good;The shape and material of the ball head need further study;The gas-liquid two-phase flow near the flow channel causes complex pressure and velocity changes,which should be paid more attention to.
关键词
射流泵/注采旁通阀/密封性能/多相流动/数值模拟
Key words
jet pump/injection and production bypass valve/sealing performance/multiphase flow/numerical simulation