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公开(公告)号：US07117956B2
公开(公告)日：2006-10-10
申请号：US10886256
申请日：2004-07-07
CPC分类号： E21B29/02
摘要： A pipe conveyed charge system, for example a junk shot, having a self-contained activating charge which may be activated by mechanical force applied through the pipe. The initiating charge is pressure actuated, and fluid pressure in the pipe is used to fire the charge. The system includes a circulating crossover coupling an explosive charge to a pipe string and including circulating ports directing fluid flow downhole to clear debris from the borehole. A ball, or other blocking material, is conveyed down the drill pipe to block circulating ports to facilitate raising pressure in the pipe to a sufficient level to fire the activating charge.
摘要翻译： 管道传送的充电系统，例如垃圾枪，具有独立的激活电荷，其可以通过通过管施加的机械力而被激活。 启动充气是压力启动的，并且管道中的流体压力用于起火。 该系统包括将爆炸装料连接到管柱并包括引导井下的流体流动以清除钻孔中的碎屑的循环端口的循环交叉。 球或其他阻挡材料沿着钻杆向下传送以阻止循环端口，以便于将管道中的压力提高到足够的水平以起动激活装料。
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公开(公告)号：US06536349B2
公开(公告)日：2003-03-25
申请号：US09817369
申请日：2001-03-21
IPC分类号： F42B3087
CPC分类号： F42B3/00
摘要： An explosive system is disclosed which may be used in repair of damaged casing. In a described embodiment, an explosive system includes a flexible elongated tubular container with a liquid explosive disposed within the container. As an alternative, the liquid explosive may be flowed into a wellbore without being retained within a container. The liquid explosive is detonated in the wellbore, thereby fragmenting the damaged casing and forcing it out into a formation surrounding the wellbore.
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