一、前言金刚石钻进的一项主要用途是矿产勘探,目的是能够以最大的速度钻进最深的钻孔。绳索取心技术使岩心能通过钻杆柱提取,因此只有当钻头磨损而必须更换时,才不得不提升钻杆柱。从数千米深的钻孔中提出钻杆,可能需用数小时,因此在钻头变钝之前,钻进长度越大,时间和金额的消耗就越小,所以穿透和圈定经济矿化带的可能性 I. INTRODUCTION One of the major uses of diamond drilling is mineral exploration, which aims to be able to drill the deepest holes at maximum speed. Rope coring enables cores to be extracted through the drill string, so the drill string must be lifted only when the drill bit is worn and must be replaced. Drilling rods from holes several kilometers deep can take hours, so the greater the length of the drill before the drill becomes dull, the less time and money spent, so penetrating and delineating the economic mineralization The possibility of