The central sampling drilling is a new method which has the characteristics of efficient, accurate sampling and high percentage recovery of Core.
中心取样钻探是一种全新的钻探方法，具有效率快、取样准确、岩样采取率高的特点。
This method properly determined the sample quantity to make core drilling amendment with the confidence degree and precision estimate theory of error theory.
在该方法中，利用误差理论中的置信度和估计精度理论，合理确定钻芯修正所需要的芯样数量。
Paper is divided into two parts, core drill equipment and mud system. Through theoretical analysis to experimental method to complete the design of core drilling and mud system.
论文分为取心钻具和泥浆两部分，通过理论分析到实验的方法来完成取心钻具的设计与泥浆体系的建立。
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