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随着矿山资源开发速度加快,矿山企业对资源勘探的技术、质量及效率的要求越来越高。不同的矿山具有不同的岩石性质,其可钻性也不同。受传统钻探工具的制约,在复杂地层施工时,常常导致岩心采取率低、孔内事故频发及探矿效果不明显等问题。如何通过钻具结构上的设计创新,突破传统钻探方法,已成为钻探研究的重要方向。1存在的问题湖南宝山有色金属矿业有限责任公司是一家以铅、锌矿石采选为主的矿山企业,矿区地质条件复
With the development of mining resources accelerating, the requirements of mining enterprises for the technology, quality and efficiency of resource exploration are getting higher and higher. Different mines have different rock properties and their drillability is also different. Constrained by the traditional drilling tools, in complex formation construction, often lead to low core take rate, frequent accidents in the hole and prospecting effect is not obvious and so on. How to break through the traditional drilling methods through the structural design innovation of drilling tools has become an important direction of drilling research. 1 existing problems Hunan Baoshan non-ferrous metal mining limited liability company is a lead and zinc ore mining-based mining enterprises, mining complex geological conditions