为正确描述液压式上击器解卡过程 ,分析各种因素对上击器解卡效果的影响 ,在合理假设的基础上 ,建立液压式上击器解卡动力学模型 ,将上击器解卡过程分为储能阶段、释放阶段和碰撞阶段 3部分 .应用弹性波理论与动力学分析相结合的研究方法 ,对直井的修井作业过程进行了分析与计算 .结果表明 ,震击过程中钻柱上不同位置质点的运动规律不同 ,对震击解卡所起的作用也不同 ,钻柱上离卡点越近的质点所引起的震击力越大 ;上提拉力、上击器安放位置、钻杆尺寸以及落鱼深度等都影响到震击力大小的确定 .据此对工程实际中的一些现象进行了解释 In order to correctly describe the process of the hydraulic strikeer jamming, the influence of various factors on the jammer jamming effect is analyzed. Based on the reasonable assumption, a hydraulic jammer kinetic model is established and the attacker solution The card process is divided into three parts: energy storage phase, release phase and collision phase.The application of the theory of elastic wave and dynamic analysis combined with the research method, the vertical well workover process is analyzed and calculated.The results show that the shock process Drill different positions on the particle movement of different particles, the role played on the shock solution card is also different from the drill on the drill point closer to the particle caused by the greater the impact force; on the pull force, hitter placement The location, the size of the drill pipe and the depth of the fish, all affect the determination of the magnitude of the shock force, thus some phenomena in the engineering practice are explained