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为了解决钼矿钻探某些地段岩矿心采取困难，与三队共同研制出DPZ-1型底喷抓簧式金刚石单动双管。经现场试验，初步达到设计要求。该钼矿属于古老的震旦纪亚蓟系，原系各种片岩经燕山期构造运动，母岩侵入变质为石英岩，各种角岩，矽卡岩等，形成以钼矿为主的大型多金属矿床。地层是十分复杂的，岩石坚硬（7级以上）破碎，孔壁坍塌掉块漏水。给钻探施工带来极大的困难，特别是岩矿心采取更为困难。过去大口径施工的钻孔大部分不能利用，该队自采用小口径金刚石钻进方法后，情况大有好转，大部分地层岩矿心采取率达到要求。
In order to solve some difficulties in molybdenum mine rock drilling center, with the three teams jointly developed a DPZ-1-type bottom-jet sandwiched diamond single action double pipe. After field test, initially meet the design requirements. The molybdenum belongs to the ancient Sinian Asia thistle system, the original series of various schist rocks through the Yanshanian tectonic movement, parent rock intrusive metamorphic quartzite, all kinds of horn rock, skarn, etc., to form a large molybdenum-based Polymetallic deposits. Stratum is very complex, rock hard (7 above) broken, hole wall collapsed block leaks. This has brought great difficulties to drilling construction, especially the rock core is more difficult to take. In the past, most of the boreholes used in construction with large caliber were not available for use. As the team adopted the small-diameter diamond drilling method, the situation has greatly improved, and most of the core rock formation utilization rates have met the requirements.