地质勘探金刚石岩心钻探中浅孔主体口径探讨

Discussion on the Diameter of Main Section in Medium-shallow Hole in Diamond Core Drilling for Geological Exploration

摘要:

针对地质勘探金刚石岩心钻探采用的钻孔口径进行分析，从采心质量满足研究和评价地质矿产的要求、钻探技术经济效益、钻探方法可行性角度，提出在地质勘探金刚石岩心钻探施工中浅孔时主体孔段口径应采用B规格。

Abstract:

Analysis was made on the borehole diameter in diamond core drilling for geological exploration. At different angles, such as coring quality meeting the requirement of studying and evaluating geological mineral resources, economic effect of drilling technology and feasibility of drilling method, the author suggested that B size should be applied to main section for medium-shallow hole construction.