Based on the existing research and combining with downhole conditions, this paper proposes a new type of downhole vibration tool to increase the rate of penetration (ROP), shorten the drilling and completion cycle and achieve more productive operations. As a whole, the axial vibration of the drill string is analyzed uniformly and the ROP is increased. A dynamic analysis model of the axial vibration of the drill string in the horizontal well is established. Based on the research on the working mechanism of the tool, this paper analyzes the flow area, pressure drop and axial force of the core valve system and determines the change law of the axial force. The field experiments verified the correctness of the established dynamic model method and the rationality of the tool and showed that the tool has a significant effect of increasing the ROP. The theoretical model established in this paper can improve the understanding of drill string dynamics. The proposed design method can provide ideas for the development of new drag reduction and speedup tools, and the calculation results can provide a reference for the determination and optimization of key parameters for drilling speedup.

在现有研究的基础上，结合井下条件，提出一种新型的井下振动工具，以提高钻速（ROP），缩短钻完井周期，提高生产效率。总体而言，对钻柱的轴向振动进行了均匀分析，并提高了机械钻速。建立了水平井中钻柱轴向振动的动力学分析模型。在研究工具工作机理的基础上，分析了芯阀系统的流通面积，压降和轴向力，确定了轴向力的变化规律。现场实验验证了所建立的动力学模型方法的正确性和工具的合理性，表明该工具具有显着提高ROP的作用。本文建立的理论模型可以增进对钻柱动力学的理解。所提出的设计方法可以为新型减阻提速工具的开发提供思路，计算结果可为钻探提速关键参数的确定和优化提供参考。