水力脉冲轴向振荡减阻工具研制

摘要

在大斜度井中，轴向力传递通常成为问题。为了减少摩阻并实现轴向力的连续传递，最新的减阻技术是水力脉冲诱发轴向振荡钻井技术，为此开发设计了一种水力脉冲轴向振荡减阻工具。介绍了该轴向振荡减阻工具的总体结构及技术特点、关键零部件的设计加工、动力马达基本结构参数合理配比优化、盘阀过流面积模拟、花键心轴表面处理技术及计算机辅助设计分析、碟形弹簧组合设计计算等。室内及现场试验表明：该工具性能可靠，能够解决托压的问题，减阻提速效果明显。%With the increase of the drilling directional well,horizontal well,extended reach well and multilateral well,at the high angle deviated hole,the axial force transfer becomes a problem.To reduce friction and transfer axial force continuously,the latest friction-reduce technology is the hydropulse axial-oscillation drilling technology,for this reason model SLZDQ172 axial-oscillation reduce friction tool was developed.The overall construction design and technical characteristic is introduced,how to design and manufacture the key components,including reasonably match and optimize the basic structure parameter of the power motor,simulation the flow area of the valve, the surface treatment and the computer aid design analysis of the spine mandrel,and the calcula-tion of the disc spring's pattern design.The lab and field test show that the tool is reliable and can improve weight transfer,reduce friction,and higher penetration rate.