游梁式抽油机精确动力学分析的新方法  

New method for precise dynamic analysis of beam pumping unit

作　　者：吴修德[1] 汪建华[1] 刘明尧[1] 

机构地区：[1]江汉石油学院机械系

出　　处：《石油机械》1997年第11期4-7,56,共4页China Petroleum Machinery

摘　　要：在对游梁式抽油机－有杆泵系统进行动力学分析的基础上，根据机械系统的力学原理，将整个系统简化为一个等效动力学模型。计算悬点载荷考虑了抽油杆、抽油泵及悬点运动规律等实际情况，建立了一套递推公式，反映了抽油机与有杆泵系统之间的相互作用关系，提出了一种求超高转差率电动机驱动抽油机真实运动规律的新方法。应用本文介绍的方法能真实地反映机－泵系统之间的匹配关系，获得的运动真实，精度高，适用于各种有杆抽油设备的动力学分析。Based on the dynamic analysis of a beam pumping unit - subsurface pump system, and according to the mechanical principle of mechanical system, the system is simplified as an equivalent dynamic model. The polished rod load is cacu lated in consideration of the actual conditions of the sucker rod, subsurface pump and the polished rod motion pattem,and a set of recursion formulae describing the interrelationship of the pumkping unit and the sucker ed pumping system are established. A new method for deriving the real motion pattern of ultra-high slip motor drive pumPing unit, which is suit able for dynamic analysis of various kinds of sucker rod pumping system, is presented.

关 键 词：游梁式抽油机 动力学 计算方法 运动规律 抽油机 

分 类 号：TE933.102[石油与天然气工程—石油机械设备]