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地质岩心钻探主要是为地质找矿服务的，钻探对象又主要以固体矿产为主。长期以来，困搅钻探工作者的两大难题是：1、硬至坚硬岩矿层（岩石等级为7～12级）占70％，钻进速度低，有的甚至用常规方法钻不动。2、矿化的越好，蚀变程度越高，构成矿层和顶底板“硬脆碎（酥）”特性就越明显。取心十分困难，取心数量不足，品质不好，人为贫化或富集现象严重，岩矿心纯洁性差，代表性不足，钻孔完全满足地质要求的比率只达50％多，直接影响矿床评价的速度、质量与准确性。
Geological core drilling is mainly for geological prospecting services, the main drilling targets mainly of solid minerals. For a long time, two major problems for trapped drilling workers are: 1. Hard-to-hard rock formations (rock grades 7-12) account for 70% of the total, with low drilling speeds and some even drilling in the normal way. 2, the better the mineralization, the higher the degree of alteration, the more obvious the “hard brittle (crisp)” features that make up the seam and the top floor. Coring is very difficult, lack of coring, poor quality, serious anthropogenic depletion or enrichment, poor core purity of rock and ore, lack of representativeness, the ratio of borehole completely meeting the geological requirements is only up to 50%, directly affecting the deposit Evaluation of the speed, quality and accuracy.