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设计并建立了水平井筒变质量流体流动的模拟实验装置。对具有射孔完井的水平井筒变质量流动特性进行了实验研究，利用先进的数据采集系统获取了大量的实验数据。对水平井井筒单孔眼段流体的流动阻力损失分析可知，流动阻力由三部分组成：管壁摩擦阻力、加速损失和混合损失。通过对实验数据进行处理，得出了混合损失和主流流速与孔眼流速之间的关系。对于一定的主流流速，混合损失随孔眼流速的增大而增大；对于一定的孔眼流速，混合损失随主流流速的增大而增大，此时流体流入孔眼对水平井筒中流体流动的影响比较显著，从而增加了井筒中流动的复杂性。实验数据的回归结果表明，在本实验条件下，主流流速和孔眼流速是造成混合损失的主要因素。
Design and establishment of horizontal wellbore variable mass fluid flow simulation experimental device. Experimental study on the variable mass flow characteristics of horizontal wellbore with perforation completion has been done, and a large amount of experimental data has been obtained by using advanced data acquisition system. Analysis of the flow resistance loss of the fluid in the single hole of horizontal well bore shows that the flow resistance consists of three parts: the frictional resistance of the pipe wall, the acceleration loss and the mixing loss. Through the experimental data processing, the relationship between the mixing loss and the mainstream flow rate and the flow rate of the orifice is obtained. For a certain mainstream velocity, the mixing loss increases with the velocity of the orifice; for a given orifice velocity, the mixing loss increases with the increase of the velocity, and the effect of fluid inflow into the orifice on fluid flow in the horizontal wellbore Significantly increases the complexity of the flow in the wellbore. The regression results of the experimental data show that under the experimental conditions, the main flow rate and the flow rate of the eyelet are the main factors causing the mixing loss.