There have been experimental and numerical studies focused on flow patterns, pressure drops, and void fractions along horizontal wellbores. Despite the fact that few studies have examined two-phase flow in a perforated horizontal wellbore. This phenomenon has been the focus of most studies on a perforated wellbore pressure drop until recently. Experimental and numerical studies are presented in this paper to analyze slug flow in a horizontal perforated wellbore with an inner diameter of 25.4 mm, a length of 2 m, and fourteen perforations evenly distributed. An ANSYS Fluent VOF model of unsteady, turbulent, and three-dimensional flow is simulated with varying water and air superficial velocities to investigate the effect of increasing axial and radial velocities on slug flow, pressure drop, productivity, void fraction, and liquid holding up along the horizontal wellbore. An investigation of three slug flow cases was conducted in the present study. At (1 m/s for U_sw & 1.5 m/s for U_sa) in the first case, raising the air superficial velocity to 1.6 m/s in the second case, and increasing the water superficial velocity to 2.1 m/s in the third case. Slug flow along the perforated horizontal wellbore was investigated experimentally. As a result of the research, increased axial flow has a greater impact than increased radial flow rate on slug flow, pressure drop, and productivity can be improved with axial velocity. With axial velocity increasing, productivity in case two is 38.82% higher than in case one, while in case three, with radial velocity increasing, productivity is 14.34% higher than in case one. In addition, there is good agreement between the experimental and numerical results.

已有实验和数值研究侧重于沿水平井筒的流动模式、压降和空隙率。尽管很少有研究检查穿孔水平井眼中的两相流。直到最近，这种现象一直是大多数关于射孔井压降的研究的焦点。本文介绍了实验和数值研究，以分析内径为 25.4 毫米、长度为 2 米、14 个均匀分布的射孔的水平射孔井眼中的段塞流。使用不同的水和空气表观速度模拟不稳定、湍流和三维流动的 ANSYS Fluent VOF 模型，以研究增加轴向和径向速度对团状流、压降、生产率、空隙率、和沿水平井筒的液体滞留。本研究对三个团状流案例进行了调查。在（1 m/s 为 U_sw & 1.5 m/s for U _sa ) 在第一种情况下，在第二种情况下将空气表观速度提高到 1.6 m/s，在第三种情况下将水表观速度提高到 2.1 m/s。通过实验研究了沿射孔水平井筒的段塞流。作为研究的结果，增加轴向流量比增加径向流量对段塞流、压降的影响更大，并且可以通过轴向速度提高生产率。随着轴向速度的增加，工况二的生产率比工况一提高了38.82%，而工况三随着径向速度的增加，生产率比工况一提高了14.34%。此外，实验结果和数值结果之间有很好的一致性。