液压式钻井震击器 hydraulic drilling jar
压力平衡式钻井震击器 pressure balanced drilling bumper sub
震击钻井器具 hammer drill
除按照机械和液压分类以外，震击器还可以分为钻井用震击器和打捞用震击器。
In addition to the mechanical and hydraulic versions, jars are classified as drilling jars or fishing jars.
随钻震击器是连接在钻具中随钻柱一起进行钻井作业的井下解卡工具。
The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .
针对钻井过程中常见的井下卡钻事故，研制了新型全液压式随钻震击器。
In light of the commonly seen downhole breakdown of drilling pipe sticking in the drilling process, the new-type fully hydraulic while-drilling bumper sub was developed.
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