摘要
用有限元法推导了普通井下生产管柱的固液耦合振动方程,计算出管柱的固有频率,并与数值计算方法进行对比.对井下管柱系统进行有限元谐响应分析,根据实测的潜油电泵振动数据,结合谐响应激励载荷,进行动力学分析,计算出管柱稳定工作时的动载荷频率范围.结果表明,额定功率下潜油泵的振动以及原油的流动速度均不会对井下工具系统产生明显的振动影响.
Solid-liquid coupling vibration differential equation was derived in finite element method for underground exploitation of oil pipe. Compared with the numerical calculation method, the natural frequencies of pipe system were calculated. Finite element analysis of harmonic response was done for oil pipe system. Based actual measurement submersible pump vibration data and the results of harmonic response, the influence of submersible pump vibration to exploitation of oil pipe system was Inferred. The results show that the vibration of the pump power rating and oil flow speed of the tool system are not generating obvious vibration influence.
出处
《天津科技大学学报》
CAS
2011年第4期53-56,共4页
Journal of Tianjin University of Science & Technology
基金
国家自然科学基金资助项目(50905127)
关键词
固液耦合
动力特性
生产管柱
振动
solid-liquid coupling
dynamic characteristics
production string
vibration
