摘要
震击器是将处于拉伸状态的钻具内部的潜在能量转化成动能。在震击发生后,这种动能将动力波传递给被卡的钻具,从而使钻具解卡。介绍了YJ-A型随钻震击器的结构特点、工作原理及释放力和密封试验。该震击器操作简单,性能稳定,安全可靠,磨损量小,使用寿命长,可满足陆地和海洋(包括欠平衡钻井)各种工况下钻井作业的需要。
Jars are in a state of tension within the drill of the potential energy into kinetic energy.After the shock,this kinetic energy will be the power passed to the drill,making drilling tools and solutions.The YJ-A drilling jar＇s structure,working principle and release forces and seal test are introduced.The jar is simple,stable performance,safety and reliability,small amount of wear,long life to meet the land and sea （including under-balanced drilling） drilling required under various conditions.
出处
《石油矿场机械》
2013年第9期61-64,共4页
Oil Field Equipment
