一、保证岩、矿心采取率和质量的重要性钻探在煤田的普查勘探中是最重要的手段之一。根据钻进的可靠成果就能对矿区作出评价和作为将来开采技术设计的基础。这一评价是否正确决定于所采取的岩、矿心的数量和质量。因此无论岩心及矿心数量（采取率）或质量均必须符合地质部门的要求。在钻探工作中往往由于打簿或打丢了矿层，而不合地质要求，致使钻孔整个或部分报废。 I. THE IMPORTANCE OF GUARANTEE ROCK AND MINERAL TAKING RATE AND QUALITY Drilling is one of the most important means of census exploration in the coal field. Based on the reliable drilling results, the mine area can be evaluated and used as the basis for future mining technology design. The correctness of this assessment depends on the quantity and quality of rock and mineral resources taken. Therefore, regardless of the number of cores and cores (take rate) or quality must meet the geological department requirements. Drilling work is often due to the book or lost the mine, but not meet the geological requirements, resulting in the whole or part of the scrapped scrap.