1) jar while drilling
随钻震击器
1.
Development and application of integral mechanical jar while drilling;
QJ159A整体机械式随钻震击器的研制及应用
2.
To solve this problem,QJ159A integral mechanical jar while drilling is developed.
针对液压式、机械式随钻震击器因密封材料受介质腐蚀和井底高温的影响,技术性能不稳定,使用寿命低的问题,研制了QJ159A整体机械式随钻震击器。
2) air while-drilling bumper sub
空气随钻震击器
1.
The fully mechanical air while-drilling bumper sub and damper were designed for under-balanced air drilling in terms of the product\'s whole prevention of corrosion and fatigue crack,streamline structure design,special surface processing technique,sealing material,structural optimization design and whole functional principle design.
针对常规震击器、减震器在空气钻井中应用时暴露出的产品表面腐蚀严重以及密封形式不适宜等问题,详细分析了失效机理,并从产品整体预防腐蚀及疲劳断裂、流线形结构设计、特殊表面处理工艺、密封材料和结构优化设计、整体功能原理设计等方面设计出适用于欠平衡空气钻井的全机械式空气随钻震击器、减震器。
3) drilling jar
钻进震击器
5) hammer drill
震击钻井器具
6) seismic while drilling
随钻地震
1.
Research on Drill-Bit Signals Extracting Methods of Seismic While Drilling;
随钻地震钻头信号提取方法研究
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
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参考词条