本文参考国内外有关文献,推导出了不同规格直径自喷管串连续排液所必需的临界流量、临界流速、对比流量、对比流速公式,以及对比参数小于1时,所应选择的合理自喷管串公式并编制了TI-59计算机求解程序,设计绘制了数学模式诺模图,运用于优选川南气井管串排水采气实践和研究气水两相垂管流动特征,获得明显的经济效果。 Based on the domestic and foreign literatures, this paper deduces the critical flow rate, critical flow rate, contrast flow rate and contrast flow rate formula required for continuous discharge of different diameters from the nozzle string. When the contrast parameter is less than 1, Pipe string formula and compiled TI-59 computer program to design and draw a mathematical model of Nomad diagram, used in the selection of South Sichuan gas well pipe string drainage gas production practice and research gas-water two-phase vertical pipe flow characteristics, access to significant economic results.