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分析了硬、脆、碎、坍、漏复杂地层钻探施工的难题，结合地质岩心勘探特点和要求，研制了气动贯通式潜孔锤反循环连续取心（样）钻具系统，通过生产性试验取得显著的经济效益和社会效益。
According to the characteristics and requirements of geological core exploration, the pneumatic continuous descending hammer reverse circulation continuous coring (sample) drilling system was developed. Through the production test Obtain significant economic and social benefits.