The paper introduces the application of air drilling technology in well Dayi 1.
文中介绍空气钻井技术在大邑1井的应用情况。
The air screw drill tool was power equipment which was designed for air drilling.
空气螺杆钻具是专为空气钻井而设计的动力装置。
Literature research of air hammer drilling in domestic and overseas.
国内外空气锤钻井技术的文献调研。
Literature research of air hammer drilling in domestic and overseas.
国内外空气锤钻井技术的文献调研。
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