文章基本信息

标题：Numerical simulation of the drill string buckling behavior in horizontal wells considering the orthotropic friction
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作者：Jianxun LIU ; Hualin ZHENG ; Yuchun KUANG 等
期刊名称：Mechanika
印刷版ISSN：1392-1207
出版年度：2018
卷号：24
期号：3
页码：360-366
DOI：10.5755/j01.mech.24.3.18363
语种：English
出版社：Kauno Technologijos Universitetas
摘要：The effect of the friction between the drill string and the borehole on the drill string buckling behavior has not been fully understood.First, we treated the friction between the drill string and the borehole as the orthotropic friction, and established a finite element (FE) model of the drill string and the borehole system.Then, the comparison with the experimental results shows that the FE model has a high accuracy.Finally, the effect of the orthotropic friction on the buckling behavior of the drill string was analyzed.Results demonstrate that the orthotropic friction can impact the buckling behavior, such as the critical buckling forces, the bending moment, the friction force and the axial force transfer.Simplifying the friction between the drill string and the borehole as the unidirectional or the isotropic friction cannot accurately predict the buckling behavior.The results can complement the existing theoretical models and provide guidance for field operations.
关键词：Drill string;Finite element;Orthotropic friction;Buckling behavior