摘要
在定向钻进中,为实现有效的轨迹控制,国内外相关科研院所开发了无磁螺杆钻具。对无磁螺杆钻具的工作原理及特点进行了简单介绍,并对国内外2种无磁螺杆钻具进行了性能测试试验,比较国内外无磁螺杆钻具的性能差异,进一步掌握无磁螺杆钻具的性能特点,为做好现场应用及选型提供依据。
In directional drilling, non-magnetic PDM drill is developed both in China and abroad to achieve effective trajec-tory control.The structure characteristics and working principle of non-magnetic PDM drill are introduced.The performance tests were done on 2 non-magnetic PDM drills made both in China and abroad, by the comparison between the feature differences of these non-magnetic different PDM drills and the further understanding of the performance characteristics, the basis for field application and selection are obtained.
出处
《探矿工程（岩土钻掘工程）》
2014年第1期59-62,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
煤矿
定向钻进
无磁螺杆钻具
性能测试
coal mine
directional drilling
non-magnetic PDM drill
performance testing
