针对双台阶水平井水动力场特征研究中存在的问题,利用物理模拟试验,研究了不同抽水流量条件下双台阶水平井中水头分布特征。结果表明,不同抽水流量情况下,双台阶水平井管内流态呈现层流、紊流等不同流态;对双台阶水平井的上段,在层流条件下其水头分布近似符合“等水头井壁”与“等流量线汇”模型,在紊流条件下其水头分布则不再符合,而对于双台阶水平井的下段,其水头分布基本上均可刻画为“等水头井壁”和“等强度线汇”模型。 Aiming at the problems existing in the study of the characteristics of hydrodynamic field in double-stepped horizontal wells, the physical characteristics of the head in double-stepped horizontal wells with different pumping flow rates were studied by physical simulation. The results show that under different pumping flow rates, the flow in the double-stepped horizontal well presents different flow regimes such as laminar flow and turbulent flow. In the upper section of the double-stepped horizontal well, the head distribution in the horizontal flow is approximately in accordance with the “ However, for the lower section of a double-stepped horizontal well, the head distribution can basically be described as ”such as “ and other flow line ”model, in the turbulent flow conditions of the head distribution is no longer consistent, Wall “and ” strength line sink "model.