摘要:
为满足深部找矿和地球科学研究的需要,近几年,深度超2000 m钻孔数量在不断更新,岩心钻探深度记录也在不断打破。深部钻探由于科学目标更高、钻遇地层更多,压力层系复杂、钻进时间更长等客观实际,对钻探装备、工艺技术和管理提出了新的要求。针对不同地域和区块,深部钻探均有不同的典型难点问题和技术挑战性。SinoProbe-05深部探测项目自2009年启动以来完成了西藏罗布莎、甘肃金川、云南腾冲、安徽庐枞、安徽铜陵和于都赣县等钻探任务,通过集成该深部探测项目过程中的技术问题,从装备、工艺、材料到机具等10个方面总结了该深部探测项目的成果,并结合近几年国内其他深部钻探项目一些经验,进行了策略研究和风险规避探索。
Abstract:
To meet the needs of deep prospecting and geoscience research in recent years, the number of drill holes over 2000m depth constantly updated, and core drilling depth records were constantly broken.Due to the higher goal of the deep drilling, the more complex formation-pressure systems, the longer drilling time, lots of the new requirements were put for-ward in the different regions, such as drilling equipment, technology and management.And each chosen site has different typical technical challenging and difficult problems.SinoProbe-05 project has completed the following drilling works, in-cluding Luobusa in Tibet, Jinchuan in Gansu, Tengchong in Yunnan, Luzong and Tongling in Anhui and Yudu in Jiangxi since 2009.Related techniques are introduced in the paper, especially some technical issues, including the total of 10 as-pects of equipment, technology and materials etc.Combined with the experience of other projects of SinoProbe in recent years, the paper discusses some drilling risk-proof ways and strategies.
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