深井切割打捞联作射孔管柱方法的应用

Field application of cutting-fishing joint perforation sting method in deep well

在钻完井作业中难免遇到各种复杂事故,由于新工具,新工艺的发展,处理事故的方法也需要不断更新。深井切割打捞联作射孔管柱方法,利用水力割刀精确定位后切割桥塞芯轴,破坏桥塞自锁结构,从而实现解卡。

With the development of new tools and new technology,the methods to deal with faults and accidents need toupdate constantly. This paper introduces the field application of cutting-fishing joint perforation string method in deep well thatapplies hydraulic cutter to realize accurate positioning and cut bridge-plug core shaft,and then break down the self-locking structureof bridge-plug and finally realize its unfreezing.