摘要
在综合考虑影响测试管柱横向振动各种因素的同时 ,通过对测试管柱各种基本载荷分析 ,运用达郎贝尔原理 ,建立测试管柱受压段固液耦联振动微分方程 ,利用三角级数法求出了频率计算的精确公式。结果表明 :测试管柱振动频率不仅与其力学特性有关 ,而且与管柱的轴向载荷。
While comprehensively Considering all kinds of factors affecting lateral vibration of test string, through analysis of differentkinds of basic test string loads and using D' Alembert' principle, this paper creates a differential equation for solid-liquidcoupled vibration of test string pressurized sections, an accurate formula frequency for frequency calculation is generated using trigono-metric series. The results show that the vibration frequency of test string has relations with its properties of mechanics as wellas axial loads of string,fluid density in and outside of the string and geometric dimensions of the string.
出处
《油气井测试》
1999年第4期5-10,73,共7页
Well Testing
基金
中国石油天然气集团公司"九.五"重点科技攻关项目
"含硫气田高温高压深井测试研究"成果
关键词
高温
高压
深井
钻柱地层测试
横向振动
频率分析
high temprature, high presure, deep well, drill stem testing, transverse vibration, frequency analysis
