基于有限元法的钻杆柱纵向振动分析
投稿时间：2015-05-24  修订日期：2015-09-15  点此下载全文
引用本文：苏凯,孙友宏,贾瑞.基于有限元法的钻杆柱纵向振动分析[J].钻探工程,2015,42(12):52-56.
SU Kai,SUN You-hong,JIA Rui. Study on Longitudinal Vibration of Drilling Pipe Based on Finite Element Method[J]. Drilling Engineering, 2015,42(12):52-56.
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作者单位E-mail
苏凯 吉林大学建设工程学院 786965977@qq.com 
孙友宏* 吉林大学建设工程学院 syh@jlu.edu.cn 
贾瑞 吉林大学建设工程学院  
基金项目:中国地质调查局地质调查项目“漠河盆地地质浅钻工程”(编号：GZHL201400303)
中文摘要:钻杆的纵向振动对钻杆失效有较大影响。采用ANSYS软件对2000 m以内钻杆柱的纵向振动进行了分析，得到了不同钻具规格、不同钻铤长度、不同钻杆柱长度的固有频率，获得了钻杆柱纵向振动的前五阶固有振型。结果表明,钻杆柱的固有频率受钻杆规格和钻铤长度影响很小，受钻杆柱长度影响较大。
中文关键词:钻探  钻杆柱  纵向振动  固有频率  ANSYS
 
Study on Longitudinal Vibration of Drilling Pipe Based on Finite Element Method
Abstract:Longitudinal vibration of drill pipe has great influence on drill pipe failure. By the analysis on the longitudinal vibration of drill pipes within the length of 2000m with ANSYS software, the intrinsic frequency of drilling pipes with different specifications, drill collars and drilling strings with different length as well as the first 5 natural vibration modes of longitudinal vibration of drill string are obtained. The results show that the intrinsic frequency of drilling pipe is slghtly affected by the drilling pipe specifications and drill collar length, but by drill pipe length a lot.
keywords:drilling  drill string  longitudinal vibration  intrinsic frequency  ANSYS
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