钻井液作用下水平井钻柱横向振动建模与分析  

Modeling and Analysis of Lateral Vibration for Horizontal Drillstring under Action of Drilling Mud

作　　者：王宝金[1] 任福深[1] 朱安贺 Wang Baojin;Ren Fushen;Zhu Anhe(School of Mechanical Science and Engineering,Northeast Petroleum University,Heilongjiang Daqing 163318,China;Tianhe Mechanical Equipment Manufacturing Co.,Ltd.,Jiangsu Changshu 215505,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318 [2]中交天和机械设备制造有限公司,江苏常熟215505

出　　处：《机械科学与技术》2018年第11期1670-1677,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(11372071);东北石油大学研究生创新科研项目(YJSCX2016-022NEPU)资助

摘　　要：根据哈密顿原理,并考虑到钻井液和钻柱的耦合作用,建立了水平钻柱横向振动的数学模型,分析了内外钻井液流速、钻井液密度、钻井液粘度系数、重力、摩阻、钻压等对钻柱横向振动特性的影响规律,并基于自主研制的水平井钻柱动力学试验装置,开展了不同钻压、钻井液流速条件下的钻柱横向振动特性模拟试验研究。研究结果表明:钻压的增加、钻井液的存在及其流速的提升都会导致钻柱的横向振动频率减小以及振动幅值上升。According to Hamilton principle,a mathematical model of lateral vibration of horizontal drill string is established by considering the coupling between drilling mud and drillstring.The effects of internal and external drilling mud velocity,drilling mud density,viscosity coefficient of drilling mud,gravity,friction and WOB(Weight on bit)on the lateral vibration of drillstring were analyzed.The lateral vibration characteristics of drill string under different WOB and drilling mud velocity were simulated based on the self-developed dynamic test device for horizontal drillstring.The research results show that the increase of WOB,the exciting of drilling mud and the flow velocity all results in the decrease of the lateral vibration frequency and the increase of vibration amplitude for the drillstring.

关 键 词：钻井液 钻压 试验 哈密顿原理 横向振动 

分 类 号：O313[理学—一般力学与力学基础]