煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2014年
1期
83-86
,共4页
煤矿井下%定向钻进%钻头%选型
煤礦井下%定嚮鑽進%鑽頭%選型
매광정하%정향찬진%찬두%선형
underground coal mines%directional drilling%drill bit%selection
合理选配和使用钻头是提高钻进效率和节省钻进成本的关键。结合煤矿井下定向钻孔施工的特点，提出了配套钻头的一般要求。介绍了目前常用钻头的类型和特点，重点介绍了3种不同冠部形状的导向钻头的适用性及选型依据。总结了钻头合理使用的注意事项，为煤矿井下定向钻孔施工合理选择和使用钻头提供了参考依据。
閤理選配和使用鑽頭是提高鑽進效率和節省鑽進成本的關鍵。結閤煤礦井下定嚮鑽孔施工的特點，提齣瞭配套鑽頭的一般要求。介紹瞭目前常用鑽頭的類型和特點，重點介紹瞭3種不同冠部形狀的導嚮鑽頭的適用性及選型依據。總結瞭鑽頭閤理使用的註意事項，為煤礦井下定嚮鑽孔施工閤理選擇和使用鑽頭提供瞭參攷依據。
합리선배화사용찬두시제고찬진효솔화절성찬진성본적관건。결합매광정하정향찬공시공적특점，제출료배투찬두적일반요구。개소료목전상용찬두적류형화특점，중점개소료3충불동관부형상적도향찬두적괄용성급선형의거。총결료찬두합리사용적주의사항，위매광정하정향찬공시공합리선택화사용찬두제공료삼고의거。
According to the characteristics of directional drilling in underground coal mines, the general require-ments of supporting bit were proposed, and the types and features of the currently used bit were introduced, then three directional bits of different crown were introduced about applicability and selection rule in detail, and the note of bit used correctly was summarized, providing a reference for selecting and using bit reasonably for direc-tional drilling in underground coal mines.
