Small-diameter drilling machines are important equipment for geological explorations. With the development of artificial intelligence and Internet of Things (IoT), future small-diameter drilling machines will have a higher level of intelligence to improve work efficiency and safety. Lithology (mineralization) identification technology is one of the key challenges in implementing the intelligent system for small diameter drilling machines. Through the investigation on the international patent layout and R&D trends, domestic R&D progress and application status, this paper analyzes the domestic R&D foundation, examines the status quo of the applicable core (mineralization) identification technologies and the development trend of intelligent core identification technology. This paper also compares and selects applicable lithology (mineralization) identification technologies, comprehensively analyzes the difficulties and bottlenecks in realizing the intelligent lithology (mineralization) identification technology for small diameter drilling machines, and puts forward three working suggestions with the hope of providing theoretical support and technical references.
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