摘要
本文介绍了所研制的“SF-1”型水力反循环连续取心(样)钻探设备的特点及其试验效果,钻进用动力头驱动,钻杆为双壁钻具.试验说明了该项设备和配套的钻具,工艺在地质填图和滨海砂矿床勘查中具有效率高、取样质量好、分层准确、无污染混淆、便于观察等特点,最大孔深分别达到116.65m和42.35m.此项成果为国内地质普查和砂矿床勘查提供了一项新的设备和经验,实现了设备和工艺国产化.
ABSTRACT This article introduces the properties and test result of SF-1 hydro-reverse circulation continuous core(sample) drill and its drilling accessaries and techniques, obtained a high efficiency, good sample quality, accurate identification of strata, non-contamination as well as easy observation. The deepest holes drilled are 116.65 m and 42.35 m. It provides new experiences foir geo-drilling and placer exploration.
出处
《探矿工程》
1991年第3期4-5,共2页
Exploration Engineering(Drilling & Tunneling)
