岩心钻进 core drilling ; ring drilling ; coring
岩心钻机 rock-core borer ; core drilling machine ; core drill
岩心钻头 core bit ; hollow bit ; core drill bit
岩心钻进进尺 cored footage
沉入海底岩心钻机 sinking seafloor core drill
钢索岩心钻管 wireline core barrel
液压岩心钻机 all-hydraulic core drill ; hydraulic core drill
岩心钻进法 core drilling method
以石油钻井和地质岩心钻探为例，论述了进入21世纪后，石油钻井和地质岩心钻中钻探技术研究与应用的新进展。
Taking the oil well drilling and geological core drilling for examples, the recent advances of drilling technology at the beginning of the 21st century are briefly described.
对那些深埋的矿物，就用地球物理勘探法来获取资料，如常用的地震勘探技术和钻取岩心法。这些技术对于找矿是最有用的。
For the buried minerals geophysical techniques are used to get information. For example, seismic technique and core drilling are often used. These techniques are the most important in prospecting.
其目的是为了将岩心的变化降到最低，通常用泥浆或水基、油基泥浆钻取岩心，但是使用少量的化学添加剂和加重物质。
Since the purpose is to minimize alteration, a fresh core has often been drilled with a bland mud, either water - or oil-base, but with a minimum of chemical additives and weighting material.
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