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为及时解除卡钻事故,以便提高钻井速度,降低钻井成本,我们参照国外资料设计、试制了一套6(1╱4)″液压随钻震击器(以下简称震击器),经试用取得了较好效果。在使用该工具时,钻杆柱下部如为刚性不满眼钻具组合,则将它安装在钻铤与钻杆之间;如为刚性满眼钻具组合,则安装在刚性满眼钻具组合的上端,以免降低刚性(特殊情况例外)。在钻具组合中安装了该工具后,在钻进、接单根、起下钻或其它作业过程中,一旦钻具遇卡,只要卡点在其撞击头4顶面的下部(见附图),就可用它进行震击,以求解卡。
In order to release the stuck pipe accident in time so as to increase the drilling speed and reduce the drilling cost, we made a set of 6 (1 ╱ 4) "Hydraulic Drilling Jar (hereinafter referred to as jar) with reference to foreign materials, A good effect in the use of the tool, the lower part of the drill string if the rigid discontent eye drill combination, it will be installed between the drill collar and the drill pipe; if rigid eye drill assembly, then installed in the rigid eye The upper end of the drill assembly, so as not to reduce the rigidity (except in special cases.) After the assembly is installed in the drill assembly, once the drill encounters the card during the drilling, pick-up, drilling or other operations, Card points in its impact on the top of the lower head 4 (see photo), you can use it to shock, in order to solve the card.