刘巨保;张宇;陈健;姚利明;庄申阳;张猛;朱岩;

• 1:东北石油大学机械科学与工程学院

• 2:大庆油田创业集团华谊实业公司

摘要(Abstract)：

大位移水平井管柱下放时需要克服管柱与井壁之间的摩阻力,限制作业管柱的入井深度及大位移水平段的延伸距离,振动工具虽然可以在一定程度上降低管柱摩阻力,但其工程应用依据还不充分。根据不同工况,运用数值仿真方法,分析横向、轴向、扭转及其组合振源对管柱轴向力传递效率的影响规律。结果表明,单一振源对管柱轴向力传递效率在12.5%~64.5%之间,其中效果显著的振源频率为1Hz、线位移幅值为3mm的横向X振动或角位移幅值为π/6的扭转振动,计算得到两种及三种振源组合传递效率在44.0%~85.0%之间;两种振源的最佳组合为轴向加扭转,最大传递效率为74.0%,三种振源的最佳组合为横向X加轴向加扭转,最大传递效率为85.5%;比单一振源提升21.0%~31.5%,其中无间隙状态下提升幅度最大。该结果可为大位移水平井作业管柱振动减阻技术的应用提供技术参考。

关键词(KeyWords)：水平井;管柱;摩阻力;强迫振动;轴向力;传递效率;数值仿真

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51674088)

作者(Author):刘巨保;张宇;陈健;姚利明;庄申阳;张猛;朱岩;

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