中文摘要：

从超临界CO2的物理性质出发，总结国内外深部咸水层封存CO2的机理研究、数值模拟、试验研究和工程应用方面所取得的主要成果。指出以往的研究主要集中于单一尺度研究均质地层封存CO2，较少考虑多尺度非均质性对咸水层封存CO2的影响。认为CO2在多尺度非均质深部成水层中的运移与俘获特征将是碳捕捉封存技术的研究重点。

英文摘要：

Based on the physical properties of supereritical CO2, the main achievements in the worldwide researches on CO2 trapping in deep saline aquifer were summarized from the aspects of mechanism, numerical modeling, tests and project applications. The lesults show that the majority of the current researches focus on single-scale researches on CO2 trapping in homogenous tbrmation, and tew researches refer to the effects of multi-scale heterogeneity on CO2 trapping. The future researches on carbon storage technology should highlight the migration and trapping features of CO2 in multi-scale heterogonous deep saline aquifer.