垂直井眼中扭压载荷作用下管柱轴向稳定性分析  

作　　者：黄世财[1] 杨松[1] 

机构地区：[1]塔里木油田公司,新疆库尔勒841000

出　　处：《内蒙古石油化工》2009年第17期62-65,共4页Inner Mongolia Petrochemical Industry

摘　　要：文章讨论了管柱垂直井眼中,考虑轴向压缩载荷、扭矩、管柱内外压力、摩擦力共同作用下的屈曲分析问题。运用能量法及变分原理得到了新的高阶非线性微分方程。同时能量法求解了考虑扭矩作用下管柱的临界载荷问题,推导出了新的临界载荷表达式,讨论了扭矩作用下对管柱临界载荷的影响。This paper discusses tubing--buckling problem in vertical well, and takes into account the effect of axial compressive load, torsion, and the internal and external pressure in tubing, friction. Utilizing the energy differential equation, load expression, and methods and variation methods, we can obtain the at the same time we solve the critical load with torsion, discusses the effect of torsion to the critical load. new high order nonlinear and deduced the new critical

关 键 词：垂直井眼 扭矩 临界载荷 

分 类 号：O175.14[理学—数学] TE931.2[理学—基础数学]