在大斜度井中,随着井斜角度的增大井下流型将更加复杂多变,如何确定流管截面上的流体分布并准确计算持水率成为大斜度井产出剖面测井一大难题。采用电容阵列仪CAT开展斜井多相流动实验研究,分析了CAT测井影响因素,提出了利用CAT测井资料计算持水率的方法。应用情况表明,该方法正确可行,结果直观。 In high-deviated wells, the downhole flow pattern will be more complicated and changeable with the increase of the inclination angle. How to determine the fluid distribution on the cross-section of the flow pipe and accurately calculate the water retention rate becomes a big challenge in the production logging of the high-deviated well . The capacitance array instrument CAT was used to carry out multi-phase flow in inclined shafts. The influencing factors of CAT logging were analyzed, and a method of calculating water holding rate by CAT logging data was put forward. Application shows that the method is correct and feasible, the result is intuitive.