The merits of down-hole motor drilling in both rotary and sliding modes are described. Some important drilling technologies in the 21st century, including high pressure and high temperature (HPH…
分析表明，高压高温钻井、深井超深井钻井、特殊工艺钻井及三维可控与可视化钻井技术将是2 1世纪最重要的和最具发展前景的钻井技术系列。
The utility model discloses a novel drilling machine, mainly comprising a drilling machine head case, a linear slideway, a stroke sliding plate, a return tension spring and the like.
本实用新型公开了一种新型钻床，该钻床主要由钻床机头箱、直线滑道、行程滑板、回位拉簧等组成。
The sliding bearing can be used for various revolving machinery, in particular to oil drilling machinery enduring heavy load and strong impact.
本发明可用于各种旋转机械，特别适用于承受重载、强冲击的石油钻井机械。
The sliding bearing can be used for various revolving machinery, in particular to oil drilling machinery enduring heavy load and strong impact.
本发明可用于各种旋转机械，特别适用于承受重载、强冲击的石油钻井机械。
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