This study is aimed at the problems of traditional vortex tools in gas wells, including notable pressure losses and short effective distances. An organic combination of jet vortex drainage and gas production tools was designed and installed without additional power equipment. Based on the liquid film force balance model, gas–liquid two‐phase flow and turbulence models of the jet vortex tool were established with UG and Fluent flow simulation software. The gas–liquid mixture was analyzed before and after the jet vortex tool, and the flow trajectory, pressure loss, liquid volume fraction change, and change rate were examined. According to the simulation results, the comprehensive influence of each structural parameter on the effective working distance was optimized, and optimal structural parameters of the jet vortex tool were obtained. The results indicate that the jet vortex tool reduces the critical liquid‐carrying flow rate and pressure loss and increases the axial and initial velocities of the gas and liquid phases, combined with swirl tool distance model, the effective flow distance is increased correspondingly, and the liquid‐carrying capacity of the gas well is improved.

中文翻译：

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基于计算流体力学的旋涡式排水生产工具气液两相流特征

这项研究针对的是气井中传统涡旋工具的问题，包括明显的压力损失和有效距离短。设计并安装了射流涡流排放和产气工具的有机结合，而无需额外的动力设备。基于液膜力平衡模型，利用UG和Fluent流模拟软件建立了射流涡流工具的气液两相流和湍流模型。在喷射涡流仪之前和之后分析气液混合物，并检查其流动轨迹，压力损失，液体体积分数变化和变化率。根据仿真结果，优化了各结构参数对有效工作距离的综合影响，得到了射流涡流工具的最佳结构参数。