扭力冲击器的动力特性研究  

Dynamic Characteristics Research of Torsional Vibration Generator

作　　者：田家林[1,2] 杜凡 朱永豪 付传红 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]西南交通大学机械工程学院,四川成都610031 [3]四川华丰企业集团有限公司,四川绵阳621000 [4]山东科瑞石油装备有限公司,山东东营257000

出　　处：《系统仿真学报》2018年第2期579-586,共8页Journal of System Simulation

基　　金：国家自然科学基金(51674216);国家科技重大专项基金(2016ZX05038);国家留学基金(201608515039)

摘　　要：针对钻井过程中,某些地层可钻性差,机械钻速低的情况,作者提出一种能提供周向扭矩的扭力冲击器。根据扭力冲击器的结构、工作原理和工作情况,建立其动力学模型,并得出扭力冲击器的碰撞频率、液压锤压缩量、扭矩与入口压强、入口流量之间的变化关系。通过实验测试与算例计算进行对比,验证了计算方法的准确性与可靠性。研究结果表明:当入口压强恒定时,碰撞频率、液压锤压缩量、扭矩与入口流量呈反比;当入口流量恒定时,碰撞频率、液压锤压缩量、扭矩与入口压强呈正比。Aiming at poor drill ability and low rate of penetration during the drilling process, a torsional vibration generator is presented. The structure and the operational principle of the torsional vibration generator are analyzed according to the torsional theory. The relationships among the collision frequency, the amount of hydraulic hammer compression, the torque, the inlet pressure, and inlet flow are obtained on the basis of its dynamic model, which is established in light of the actual working condition. Compared with the example calculation, the experimental test verifies the accuracy and reliability of calculation method. The research results show that when the inlet pressure keeps constant, the collision frequency, the amount of hydraulic hammer compression, and the torque are inversely proportional to the inlet flow; while when the inlet flow is constant, the collision frequency, the amount of hydraulic hammer compression, and the torque are proportional to the inlet pressure.

关 键 词：冲击器 扭矩 振动 压强 频率 

分 类 号：TE92[石油与天然气工程—石油机械设备]