调研了国内外超临界二氧化碳钻井技术的研究现状，从超临界二氧化碳钻井的井筒温度压力的规律、超临界二氧化碳射流及破岩规律以及超临界二氧化碳携带岩屑规律3个方面进行了分析和介绍，指出了相关研究中存在的问题和不足，评述了相关方面的研究。

The principle of supercritical carbon dioxide drilling technology and the advantage of supercritical carbon dioxide well drilling are pointed out,and the thermal physical properties of supercritical carbon dioxide are introduced.The research status of supercritical carbon dioxide drilling technology in China and abroad is investigated.The wellbore temperature and pressure rule for supercritical carbon dioxide drilling,the jet and rock-erosion rules for supercritical carbon dioxide and the rule for supercritical carbon dioxide to carry cuttings are analyzed and introduced,and the problems and the insufficiency in the related research are reviewed and commented.

冯金禹(1993-),男,硕士生