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高岭土是一种多用途的工业原料，广泛应用于化工、造纸、建筑、陶瓷及尖端科学等工业部门。高岭土是我省的优势矿种之一。矿床类型大多为花岗岩风化残积型，矿体一般呈松散土状，地表大部分为第四纪残积层所覆盖。地层风化强烈，水敏性强，解理、裂隙发育，岩石松散破碎。因而在钻探施工中，除取心困难外，还存在不同程度的缩径、坍塌、漏失等问题。本文将就我省高岭土矿的钻探工艺特点进行总结和探讨。
Kaolin is a multi-purpose industrial raw materials, widely used in chemical, paper, construction, ceramics and cutting-edge science and other industrial sectors. Kaolin is one of the dominant minerals in our province. Most of the deposit types of granite weathering residual type, the ore body is generally loose earth, most of the surface covered by the Quaternary residual layer. Stratum strong weathering, water sensitivity, cleavage, crack development, rock loose broken. Therefore, in drilling construction, in addition to coring difficulties, there are varying degrees of diameter reduction, collapse, leakage and other issues. This article will summarize and discuss the characteristics of drilling technology of kaolin mine in our province.