世界核地质科学2025，Vol.42Issue(1)：1-12,12.DOI:10.3969/j.issn.1672-0636.2025.01.001
相山铀矿田深部探测3 000m科学深钻施工技术
Drilling technology for 3 000 meter borehole in Xiangshan uranium field
摘要
Abstract
In order to reveal the complete geological structure of Xiangshan volcanic basin and explore the metallogenic prospect and potential in the central part of the basin,the Xiangshan Uranium Field Deep Scientific Exploration phase Ⅱ project deployed a 3 000 meter deep scientific borehole,named CUSD2-1,at"Xingshuxia"in the central part of the basin.To insure the smooth conduction of the drilling,we adopted the advanced AC frequency conversion electric top drive geological core drill,large diameter wireline core drilling technology,anti-inclination and control wireline core drilling tools,high efficiency diamond bit and efficient drag reducing lubricating drilling fluid,which successfully solved the technical problems of deep drilling in complex formation,such as low drilling speed in hard rock,stable hole wall in broken formation,hole leakage,anti-inclination and control in strongly deflecting formation,and safe drilling with large diameter wireline coring,and finally drilled to the predetermined depth,creating the deepest record of S(φ150 mm)diameter wireline coring in geological core drilling in China,and revealed the deep formation structure.This deep drilling provides valuable geological data for deep uranium resource exploration in Xiangshan,which not only has special significance for the scientific research and exploration of deep uranium resources,but also has great significance for the improvement of engineering technology for deep-ultra deep geological drilling.关键词
相山铀矿田/深部探测/科学深钻/施工技术/钻探设备Key words
Xiangshan uranium field/deep exploration/scientific deep drilling/drilling technology/drilling equipment分类
地质学引用本文复制引用
刘晓阳,李博,段志强..相山铀矿田深部探测3 000m科学深钻施工技术[J].世界核地质科学,2025,42(1):1-12,12.基金项目
核能开发项目(编号:地HXS1403)和中国核工业地质局项目"铀矿勘查钻探施工数字化监测与控制技术研究"(编号:202347-1)联合资助 Supported by Nuclear Energy Development Project(No.地HXS1403),China Nuclear Industry Geological Bureau Project(No.202347-1). （编号:地HXS1403）
