液压加速器在震击解卡作业中的作用  

Functions of hydraulic accelerator in jarring releasing operation

作　　者：陈玉祥[1] 徐治明[1] 

机构地区：[1]胜利石油管理局采油工艺研究院,山东省东营市257000

出　　处：《石油机械》1998年第1期36-39,共4页China Petroleum Machinery

摘　　要：在震击管柱中配接使用加速器，是提高震击解卡成功率的有效途经。介绍了液压加速器和震击器的结构、工作原理以及震击管柱运动规律与动力性能。在此基础上，阐述了震击管柱中有效能量的概念，并分析了液压加速器在震击管柱中的减振作用。实例计算及现场统计资料表明：采用加速器配套施工比单独使用震击器施工，可提高解卡成功率15％以上，延长震击器有效工作寿命30％以上；同时能减缓钻柱振动，对井下钻具及水泥环有保护作用，有利于提高修井质量。Mounting an accelerator on the jarring pipe string is an effective approach to improving the success rate of jarring releasing. The design feature and working principle of the hydraulic accelerator and the fishing jar art, introduced . The motion pattern and dynamic performance of the jar pipe string are analyzed. Thereafter , the concept of the effective energy inthe jarring pipe string is expounded, and the shock absorbing action of the hydraulic accelcrator is analyzed. Calculationand field statistical data show that, by using the fishing jar along with the hydraulic accelelator, the success rate of releasing stuck is improved by over 15%, the service life of the fishing jar is extended by over 30%, and the vibration ofthe drillstring is absorbed, thereby the quality of well servicing can he improved .

关 键 词：液压加速器 震击器 修井作业 解卡 

分 类 号：TE358[石油与天然气工程—油气田开发工程]