公开(公告)号：US5348086A

公开(公告)日：1994-09-20

申请号：US956164

申请日：1992-10-05

申请人： Randall L. Trout

发明人： Randall L. Trout

IPC分类号： E21B31/16 ,  E21B31/20 ,  E21B37/02 ,  E21B31/00

CPC分类号： E21B31/16 ,  E21B31/20 ,  E21B37/02

摘要： A combination clean-out and fishing tool for use under rotary power in a well bore. The tool is adapted for connection to the drill string by means of an elongated connector sub. The connector sub then carries a cylindrical sleeve thereon which houses a cylindrical hub secured within the sleeve by means of shear pins. A cylindrical extension then secures below the cylindrical sleeve to support a clean-out tool of selected type therebelow while the hub and extension sub carrying a selected fishing tool are inside the cylindrical extension. After rotary operation of the clean-out tool to expose the fish, sufficient weight jarring the drill stem shears the shear pins to lower the connector sub, hub, extension sub and fishing tool into rotary engagement with the fish.

摘要翻译： 在井筒中旋转动力下使用的组合清理和钓鱼工具。 该工具适于通过细长的连接器子连接到钻柱。 连接器子部分在其上承载有圆柱形套筒，其上容纳通过剪切销固定在套筒内的圆柱形轮毂。 然后，圆柱形延伸部固定在圆柱形套筒的下面，以支撑选定类型的清理工具，而承载选定的渔具的轮毂和延伸部分在圆柱形延伸部内。 在清理工具旋转操作以暴露鱼之后，足够的重量刺激钻杆剪切剪切销以将连接器子，轮毂，延伸部分和钓鱼工具降低成与鱼旋转接合。