矿用无磁螺杆钻具性能测试分析

Analysis on Performance Testing of Non-magnetic PDM Drill in Coal Mine

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。

Abstract:

In directional drilling, non-magnetic PDM drill is developed both in China and abroad to achieve effective trajectory 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.